Table of contents:

• (...)
  • 10.0-0 h6
  • 10.a3 Ba5
  • 10.a3 Bd6
  • 10.Nc3 Nc3

• 10.0-0 a6
  • 11.a3 Ba5
  • 11.a3 Bd6
  • 11.a3 Bf8
  • 11.Qa4 Nf4!
  • 11.d4 Qd6
  • 11.d4 Qe7
  • 11.d4 Qf6

• 10.0-0 Nb6

• 10.0-0 Qd6
  • 11.a3 Ba5
  • 11.d4 Rad8
  • 11.h3 Bf3
  • 11.h3 Bh5

• 10.0-0 Bd6
  • 11.Qa4 Qd7
  • 11.Nc3 Nc3
  • 11.Nc3 Be5??
  • 11.h3 Bh5

• 10.0-0 Qd7
  • 11.a3 Ba5
    • 12.d4 Rad8=+
  • 11.a3 Bd6
    • 12.Nc3 Nc3
    • 12.d4 Qe6
    11.a3 Bf8
  • 11.a3 Bf8
  • 11.Nc3 Nc3
  • 11.d4 Rad8
  • 11.Nd4 Be2

• 10.0-0 Re6
  • 11.Nd4 Nd4

• 10.0-0 Qe7
  • 11.a3 Ba5
    • 12.Qa4 Qd7
    • 12.Qa4 Bd7
      • 13.Qb3 Nf6
    • 12.Qa4 Qe4
      • 13.Qe4 Re4
    • 12.Qb3 Nb6
    • 12.Qb3 Qd6
    • 12.Qb3 Qd7
      • 13.Qb7? Rab8
    • 12.Qb3 Rad8
    • 12.Qb3 Nf4
    • 12.Qc2 Rad8
    • 12.d4 Rad8
    • 12.Nd4 Be2
      • 13.Ne2 Rad8
    • 12.h3 Bf5
      • 13.Bb5 Qd6
        • 14.Qa4 Re4
          • 15.d4 Qg6
            • 16.Bc6+= Bh3
              • 17.g3 bc6=+ 18.Rc1 Re3!
    • 12.h3 Bh5
  • 11.a3 Bd6
    • 12.Qb3 Nb6
    • 12.Qb3 Nf4!
    • 12.Nc3 Nc3
      • 13.Bc3 Ba3
        • 14.Qb3 Bb4
    • 12.h3 Bf5
  • 11.Qa4 Rad8
  • 11.Qa4 Nf4!
  • 11.Qb3 Rad8
  • 11.Qb3 Nf4
  • 11.Qc2 Bd6
  • 11.Qc2 Rad8
  • 11.Nc3 Bc3
  • 11.Nc3 Nc3
    • 12.dc3 Bc5
    • 12.dc3 Bd6
  • 11.Nc3 Rad8
  • 11.d4 Rad8
    • 12.a3 Ba5
    • 12.a3 Ne3 13.fe3 Qe3
    • 12.Nbd2 Ne3
    • 12.Kh1 a6
  • 11.d4 Ne3
  • 11.d4 Nf4
    • 12.Bb5 Ng2!
  • 11.Nd4 Nd4
  • 11.Nd4 Bd7
  • 11.Nd4 Be2
    • 12.Nc6 Bd1
      • 13.Ne7 Be7
    • 12.Ne2 Rad8
      • 13.Qb3 Bd6
      • 13.Nbc3 Nc3
        • 14.Nc3 Rd3
      • 13.d4 Rd6
      • 13.d4 Ne3
        • 14.fe3 Qe3
          • 15.Rf2 Nd4
  • 11.h3 Bf5
  • 11.h3 Bh5

• 10.0-0 Be7
  • 11.Nc3 Bf6
  • 11.d4 Bf6

• 10.0-0 Bf3
  • 11.Bf3 Ne5

• 10.0-0 Nf6

• 10.0-0 Bf8

10.0-0 a5 11.d4 Nce7 12.h3 Bh5 13.a3 Bd6 14.Nbd2 c6 15.Nc4 Bc7 16.Nfe5 Be2=+ 17.Qe2 b5 18.Nd2 Be5 19.de5 Ng6 20.f4 Qb6–/+ 21.Bd4 c5 22.Bb2 c4 23.Bd4 Qc6 24.Rac1 a4 25.Ne4= f6 26.Nd6 Rf8 27.Qg4 Nc7 28.ef6 Qd6 29.f5 Qd7 30.Qg5 gf6= 31.Bf6 Qf7 32.fg6 Qg6 33.Qh4 Nd5 34.Bd4 Rae8 35.Bc5 Rf6 36.Rf6 Nf6 37.Rf1 Ne4 38.Rf4 h5 39.Bd4 c3 40.Kh2 c2 41.Bb2 Kh7 42.g4 Qg5=+ 43.Qe1 Qd5 44.Bc1 Qd1–/+ 45.Qh4 Qe2 46.Kg1 Qd1 47.Kg2 Qe2 (better is 47...Re5!? 48.Rf7 Kh6–/+) ½–½. Piszcz (1800) – Mroz,Antoni (2000), corr 1. AMM Poland, 1992.

10.0-0 Rb8 11.d4 Qf6 12.Nbd2 Bc3 (12...Qg6 13.a3 (13.Rb1 Qe6 14.Nb3 Bd6 15.Bb5 Qg6=+ -0.28; 13.Kh1 Bc3 14.Qb3 Bb2 15.Qb2 Nf4=+ -0.34; 13.Re1 a6 14.Rc1 Rbd8 15.a3 Ba5= -0.19; 13.Rc1=+ Bh3 14.Nh4 Qf6 15.Nhf3 Bf5= -0.16; 13.Nc4 Bh3 14.Nh4 Qg5 15.Bf3 Be6-/+ -0.75) 13...Bc3 14.Qb3 Bb2 15.Qb2 Bh3= -0.09; 12...Qe6 13.Kh1 (13.h3 Bh5 14.Nb3 Bd6 15.Bb5 a6=+ -0.31; 13.Nb3 Bd6 14.Bb5 Qg6 15.Nc5 Bh3=+ -0.41; 13.Nb1 Ne3 14.fe3 Qe3 15.Rf2 Bf3=+ -0.53) 13...Bf5 14.a3 Be7 15.Rc1 Bd6= -0.13) 13.Qb3= White fights for the Initiative (13.Qc2 Nf4 14.Bb5 Bb2 15.Qb2 Nh3+= 0.34) 13...Bb2 (13...Bd2 14.Qd5 Bb4 15.Qb3 Bd6= 0.06) 14.Qb2 Qh6 (14...Nf4 15.Bd1 Nd3= 0.06) 15.Bb5 a6 (15...Bf3 16.Nf3 a6 17.Bc4=) 16.Bc6+= bc6 (16...Qc6 17.Ne5 Qe6 18.Rfc1+=) 17.Qa3+/- Bf3 18.Nf3 Rb6 19.Ne5 Nb4 (19...Qd6 20.Qa4 Rb4 21.Qc6 Qc6 22.Nc6+/-) 20.Rab1 Reb8? (better 20...Nd5+/-) 21.Nd7+- Nc2 (21...Qd6 22.Nb8 Rb8 23.Rb3+-) 22.Rb6 cb6 (22...Na3?? 23.Rb8) 23.Qb3 Rb7 24.Ne5 (24.Qc2?! Rd7 25.Qa4 Qd6 26.Qa6 c5+/-) 24...Nd4 25.ed4 Qd6 26.Rc1 c5 27.Rc5! (27.Rc5 g6 28.Rc8 Kg7 29.Qc3+-) 1-0. Longueville,Thomas – Vautherot, corr France, 1989.

10.a3 Be7 11.0-0 Bf5 12.d4 Qd6 13.Nbd2 Bf6 14.Qb3 b6 15.Nc4 Qe6 16.Bd3 Rad8 17.Rac1 Nde7 18.Bf5 Qf5 19.Ncd2 h6 20.Qc2 Qc2 21.Rc2+– Rd6 22.Ne4 Re6 23.Nf6 gf6 24.Rfc1 Rd8 25.a4 Rd5 26.Ba3 Ra5 27.Rc4 b5 28.ab5 Ra3 29.bc6 Ra6 30.Rc5 Rec6 31.Rc6 Rc6 32.Rc6 Nc6+= 33.g4. Psion – Psion, 4 Min/Zug, 1990.

10.a3 Bf8 11.0-0 Qd7 12.Nc3 Rad8 13.Nd5 Qd5 14.d4 Bd6 15.h3 Bf5 16.Bd3 Bd3 17.Qd3 Na5 18.Rac1 a6 19.Rfd1 b5 20.Nd2 c5 21.Qc3 Nb7 22.Nf3 c4 23.a4 f6 24.ab5 ab5 Black creates threats along the open a–file 25.Ba3 Ra8 26.Bb4 Bb4 27.Qb4 Ra4 28.Qb2 b4 29.Qc2 b3 30.Qb2 Ra2 31.Qc3 Nd6 32.Qb4 Rc8 (32...Rc8 33.Nd2 f5–/+). Muri,H – Rada,H, corr ICCF EU/M27, 1993.

10.Nc3 Qd7 11.a3 Bc3 12.dc3 =+.

10.Nd4 Nd4 11.Bg4 Re3 12.fe3 Ne3 (13.Qa4 Qh4 14.g3 Qg4 15.Bd4 Qd4–+) 0–1. Reussner,Hans_Dieter – Buecken,Guenter, F0012 DESC, 2001.

11.a3 Bd6 12.Nc3 Nc3 (12...Be6 13.Ne4=) 13.Bc3= Ne5 (13...Qe7 14.Qb3=) 14.Be5 (14.Ne5 Be2 15.Qe2 Be5=) 14...Be5 (14...Re5? 15.Ne5 Be2 16.Qe2 Be5 17.d4+–) 15.Ne5 (15.Rb1 Rb8=) 15...Be2 16.Qe2 Re5 17.Rfd1 c5 18.d4 Rd5 19.dc5 Rc8 20.e4 Rd1 21.Rd1 Qe7 22.g3 ½–½. Ringsborg,Allan (2370) – Menghi,Carlo, EM/M/A081 ICCF E–mail, 1999.

11.d4 Qd7 12.a3 Bd6 13.Nc3=.

11.d4 Qd7 12.Qc2 Bd6 13.a3 Nf6 14.Nbd2 Rad8 15.Rfe1 Re7 16.Nc4 Rde8 17.Nd6 cd6 18.Rac1 a6 (18...Qe6 19.Qd1 d5 20.Ne5 Be2 21.Re2=) 19.Qb3 (19.Ba6 Nb4 20.ab4 ba6+/-) 19...d5 (19...Be6 20.Qd1=) 20.Rc5 (20.Ne5 Ne5 21.de5 Be2 22.ef6 Bc4+/-) 20...Re4 (better 20...Ne4!? 21.Rc2 b5=) 21.Rec1+/- Bf3 (21...Qe7 22.h3 Bh5 23.g4+/-) 22.Bf3 (22.gf3?! Rh4 23.Bf1 Qf5 24.Qb7 Qf3=) 22...Rh4 23.Qd1 (better 23.g3!? Rh3 24.Bd5 Nd5 25.Qd5+-) 23...Ne4+= 24.R5c2 Qd6? (better 24...Ng5+=) 25.g3+- Rh3?? (25...Qg6 26.Kh1 Nf2 27.Rf2 Qg3 28.Rg2+-) 26.Bg2 (better 26.Bg4 Ng5 27.Qf1 (27.Bh3?! Nh3 28.Kg2 Ng5+-) 27...Rh2 28.Kh2+-) 26...Qe6 27.Bh3 Qh3 28.Qf1 Qf1 29.Kf1 Nf6 30.Kg2 Kh7 31.h3 Ne4 32.h4 Nf6 33.Rc5 Rd8 34.f3 Ng8 35.g4 Nce7 (35...h5 36.e4 Nge7 37.Re1+-) 36.Kf2 (36.Rc7 b5+-) 36...g6 (36...f5 37.Rc7 fg4 38.fg4+-) 37.f4 White intends g5 (37.e4 b5+-) 37...f6? (37...Nc6 38.g5+-) 38.R1c2 (38.Rc7 b5+-) 38...h5 39.g5 f5 (39...Nc6 40.Kf3+-) 40.Bc1 (40.Rc7 b5+-) 40...Re8?! (40...Nc6+-) 41.Bd2 b6 42.R5c3 a5 43.Rb2 (43.Rc7 Kh8+-) 43...Rb8 (43...Nc8+-) 44.Rcb3 Nc8 (44...a4 45.Rb6 Ra8 46.Rb7+-) 45.Rb5 (45.Ba5!? Kg7+-) 45...Nge7 (45...Nd6 46.Rb6 (worse 46.Rd5 Rd8 47.Kf3 Ne7+-) 46...Rb6 47.Rb6+-) 46.Ba5! Ra8 (46...ba5 47.Rb8 Pinning (47.Rb8 Deflection)) 47.Bb4 1-0. Holz auf der Heide,Gerhard (1865) - Salm,Andreas, Leipzig VfB op, 2009.

11.d4 Bf5 12.a3 Bf8 (12...Bd6 13.Nc3 Nc3 14.Bc3=) 13.Nbd2 (13.Nc3 Nc3 14.Bc3 Rb8=) 13...a6 14.Rc1 Bh7 (14...Qd7 15.Re1=) 15.Qb3 (15.Ne5 Ne5 16.de5 Qd7=) 15...Nb6 (15...Na5 16.Qa2=) 16.Nc4+= Bf5 (16...Nc4 17.Bc4 (worse 17.Rc4 Na5 18.Qa2 Qd5=+; 17.Qc4?! Be4=) 17...Qd7 18.Qc3+= (worse 18.Qb7 Reb8 19.Qc6 Qc6 20.Bf7 Kf7 21.Rc6 Rb2=+)) 17.Rfd1 (17.Nb6 cb6 18.Bc4 Re7+=) 17...Be6 18.Qc2 Bd5 (18...Nc4 19.Bc4 Bg4 20.Be2+=) 19.Nb6 cb6 The passed pawn on d4 will quickly become a dangerous weapon 20.Ne5 (20.Nd2 Rc8 21.Qd3 Qh4+/-) 20...Rc8 (20...Qg5 21.e4 Ne5 22.de5+= (worse 22.ed5 Ng6=+)) 21.Bg4+/- Ne5 (21...Be6 22.Be6 fe6 23.Qb3+/-) 22.Bc8 (22.Qc8 Qg5 23.de5 Rc8 24.Rc8 Bg2-+ (worse 24...Qg4 25.Rf8 Kf8 26.Rd5-+)) 22...Nf3 (22...Nc4 23.Bf5 Nb2 24.Qb2 Bg2 25.Kg2 Qg5 26.Kh1 Qf5+=) 23.gf3+- Bf3 24.Bh3 Qg5 25.Kf1 g6 (25...Bd6 26.Rd3 Bh2 27.Ke1 Qg1 28.Bf1+-) 26.Qc3 (26.d5 Bd6 27.Qa4 b5+=) 26...Bd6 27.Rd2 Bh2 Do you see the mate threat? 28.Ke1 Qg1 (28...b5 29.Bf1+-) 29.Bf1 Bf4 30.Rd3 (30.d5 f6 31.Rd3 Bg3+-) 30...h5 (better 30...Bg3 31.Qd2 Be4+-) 31.d5 Threatening mate... how? 31...Be5 32.Qc8 (better 32.Qe5 Re5 33.Be5+-) 32...Rc8 33.Rc8 Kh7 34.Be5 The mate threat is Rh8 34...g5 (34...f6 35.Bf6 g5 36.Rh8 Kg6 37.Rg8 Kf6 38.Rf8 Kg6 39.Rf3 Qg4+-) 35.Rc7 (35.d6!? Bg2 36.d7 Qf1 37.Kd2 Qf2 38.Kc3 Qe1 39.Kc4 Qa5 40.Rh8 Kg6+-) 35...Kg6?? (better 35...Bg2 36.Rf7 Kg8=) 36.d6+- (36.Rb7 Bg2 37.Rb6 Kf5-/+) 36...Bg2 37.d7 Qf1 38.Kd2 Qf2 39.Kc3 Qe1 40.Kc4 Qc1 (40...b5 41.Kc5 Qa5+-) 41.Kd4 (better 41.Bc3!? Qa3 42.d8Q Qa2 43.Kd4 Bc6 44.Qg8 Kh6+-) 41...Qb2?? (better 41...Bc6 42.Rc6 bc6=) 42.Rcc3+- Qb5 (42...f6 43.d8Q fe5 44.Ke5 Qb5 45.Kd6 h4+-) 43.d8Q (43.d8Q h4 44.Qf6 Kh5 45.Qf7 Kg4 46.e4 Qa4 47.Rc4+-) 1-0. Schirmer,Michael - Breitenbaum,Josef, corr, 1984.

11.0-0 Qd6 (--> 10.0-0 Qd6 11.a3 Ba5).

11.0-0 Qe7 (--> 10.0-0 Qe7 11.a3 Ba5).

11.Qb3 Nb6 12.0-0 Re6 13.Rc1 Rh6 14.h3 Bf5 15.Bb5 Rg6 16.Bc6 bc6 17.Rc6? Bh3 18.g3 Be6 19.Qd3 Bd5 20.Rb6 Bf3 21.Rd6?? Qd6 22.Qd6 Rd6 23.Bc1 Rh6 (23...Rh6 24.d3 Rh1#) 0–1. WaterDragon – Nekthen, ChessWorld.net, 2008.

11.Qb3 Be6 12.Qb7= Black creates threats along the open b-file 12...Na5 (12...Rb8 13.Qc6 Rb2 14.Nc3 Nc3 15.Qc3=) 13.Qb5 c6 (13...c5 14.Bc3 Nc3 15.Nc3= (worse 15.dc3 Nb3 16.Ra2 Rb8-+)) 14.Qd3 Rb8 15.Qc2 Qb6 16.Be5 (better 16.Bd4!? c5 17.Be5-/+) 16...Nb3-+ 17.Ra2 Be5 18.Ne5 Nd4! 19.ed4 Qb1 Theme: Double Attack 20.Bd1 Nf4 21.0-0 Ba2 22.Nc6 Qc2 23.Bc2 Rb2 24.Ba4 (24.Bf5 Bd5 25.Bd7 Re2-+) 24...Bd5 25.Ne5 (25.Nb4 Bg2 26.Be8 Bf1-+) 25...Rc8 26.Rd1 (26.Bd7 Rcb8 27.h4 Bg2-+) 26...f6 27.Ng4 (27.Nd7 Bg2 28.Nc5 Bf3-+) 27...Rc4 28.Be8 Rd2! 29.Rb1 (29.Rd2 Deflection from c1 29...Rc1 A beautiful mate combination) 29...Rb2! 30.Ra1 (30.Rb2 A deflection 30...Rc1 The nicest combinations are those leading to mate) 30...Rc3 (30...Ng2 31.h3-+) 31.a4 (31.h4 Ng2 32.h5 f5-+) 31...Rbc2 (31...Bg2 32.Bd7 Bh3 33.Bf5-+) 32.h4 (32.h3 Ng2 33.Bd7 h5-+) 32...f5 33.Ne5 Bg2 34.Bf7 Kf8 35.Rb1 If White now only could play Bh5... 35...Be4 36.Rb8 Ke7 37.Re8 Kf6 38.Nd7 Kf7 39.Rf8 Ke6 (39...Ke7 40.Rf7 Kf7 41.Ne5 Ke7 42.Nd3 Nh3 43.Kf1 Bd3 44.Ke1 Rb3 45.d5 Rb1) 40.Nc5 Ke7 41.Ne4 (41.Nd3 Rc1! 42.Nc1 Rc1 43.Kh2 Rh1 44.Kg3 Ne2) 41...Rc1 42.Kh2 Rh3 0-1. Andersson,Egart - Rosner,Dirk, email SOK-98-E002B, 1998.

11.Qc2 Rb8 12.h3= Bh5 13.Qf5 Bf3 (13...Nf6 14.Bf6 Qf6 15.Qf6 gf6 16.Nc3=) 14.Qf3 Nb6 15.d4 Na4 16.Ra2 Re6 (better 16...Qh4!?=+) 17.d5+= Ne5 18.Qe4 Nc5 19.Qc2 Re8 20.0-0 c6 21.dc6 Nc6 22.Rd1 Qe7 23.Nc3 Rbd8 24.Raa1 Qe5 25.g3 Qe6 26.Nb5 Be5 27.Be5 Qe5 28.Bf3 a6 (28...Qf6!? 29.Nc7 Rd1 30.Rd1 Rc8 31.Qc5 Qf3+=) 29.Bc6+/- bc6 30.Na7 Ne4 31.Nc6 Rd1 32.Rd1 (32.Qd1? Qb2 33.Qf1 Nf2-+) 32...Qf6 33.Rd7 Ng5 34.Nd4 Nh3 35.Kg2 Ng5 36.Ra7 Ne6 (36...Rd8 37.Qc6 Ne6 38.Ne6 Qe6 39.Qb7+/-) 37.Qc6 (37.Qa4 Qd8+/-) 37...Rd8 38.Ne6 Qe6 39.Ra6 Qc6 40.Rc6 Kf8 41.a4 Rd5 42.Rc1 h5 43.Ra1 Ra5 44.e4 Ke7 45.f4 Kd6 46.Kh3 Ke6 47.Kh4 g6 48.Ra3 f6 49.Kh3 g5 50.Ra2 Ke7 51.Kg2 Kd6 52.Kf3 Ke6 53.Kg2 Kd6 54.Kf3 Ke6 55.Kg2 ½-½. Wantoch_Rekowski,Jacek (2305) - Krolik,Zenon (2335), 3. Email Team Championship Poland, 2006.

11.Qc2 g6 12.Nc3 Bf3 13.gf3 Nc3 14.Qc3 =.

11.Nc3 Nc3 12.Bc3 Qd7 13.Qb1 a6 14.Ng5 (14.Qb7?? Reb8 15.Ne5 Ne5-+) 14...Bf5 15.Bg4 (15.Qb7?? Reb8 16.Qb8 Rb8 17.Ba6 Ba3-+) 15...Ne7 (worse 15...Bb1 16.Bd7 Bd3 17.Be8 Re8 18.Nf3+=) 16.Bf5 Qf5 17.Qf5 Nf5 ½-½. Keber,Ernst (1710) - Leisebein,Peter (2425), RSS5D pro-47, 2005.

11.Nc3 Nc3 12.Bc3 Qd7 13.Qb3 Rab8 14.Qb2 Bf8 15.h3 Bf5 16.Nd4 (16.0-0 Red8=) 16...Nd4 17.Bd4 Be4 (17...Qd5 18.Bf3 Be4=+) 18.d3 (better 18.f3!? Bc6 19.0-0=) 18...Bg2-/+ 19.Rg1 (19.Rh2!? Bc6 20.Kd2-/+) 19...Qh3 20.Bf1 (20.Qb5 Qh2 21.Kd2 c5 22.Bc5 Re5-+) 20...Bf1-+ 21.Bg7? (better 21.Rf1 c5 22.Bc3-+) 21...Bg2 (21...Bd3 22.Bf8 Kf8 23.Qb4 Re7 24.Qd4-+) 22.Bf8 (22.Bd4 Qh2 23.Kd2 c5-+) 22...Re3! (worse 22...Kf8 23.Qb4 Kg8 24.Qf4-+; 22...Rf8?! 23.f3 Qg3 24.Qf2 Qf2 25.Kf2=+) 23.fe3 (23.Kd1 Rd3 24.Kc2 Rf8 25.Qb5-+) 23...Qe3 24.Kd1 Qg1 25.Kc2 Qf2 26.Kb3 Qb2 27.Kb2 Kf8 0-1. carlos78 (2285) - jarda (2100), Rated Blitz game, lichess.org, 2014.

11.Bc3 Bc3 12.dc3 Qf6 13.Nd4 Be2 14.Qe2 Nd4 15.cd4 Rad8 (15...c5 16.Rd1=+) 16.Rd1 c5 17.0-0 (17.dc5 Qc3 18.Kf1 Qc5-/+) 17...cd4-/+ 18.Qb2 de3 19.Qf6 gf6 20.fe3 (20.Rd8 ef2 21.Kf2 Rd8-/+) 20...Rd1 21.Rd1 Re3 22.Rd8 (22.Kf2 Ra3 23.Rd2 f5-/+) 22...Kg7 23.Rd7 (23.Kf2 Ra3 24.Rd2 f5-+) 23...Ra3 24.Rd2 f5 25.Rb2 (25.g3 Ra4-+) 25...b6 (25...f4 26.Rf2-+) 26.Kf2 (26.g3 Ra4-+) 26...f4 27.Rd2 Kf6 28.g3 (28.Rc2 Ke5-+) 28...Kg5 29.Kg2 f5 (29...f5 30.Kf2 Kg4 31.gf4 Kf4-+) 0-1. Lezcano,Ruben Osvaldo - Pagni,Carlo Alberto, corr 3GMM-55, 1997.

11.a3 Be7 12.Qc2 Bf6 (12...Qd6 13.Nc3=+) 13.d4= Qe7 (13...Qd7 14.Bd3=) 14.Qb3 (14.Nc3 Rad8=) 14...Nb6 (14...Be6 15.Nbd2=+) 15.Nbd2= Rad8 (15...Bf5 16.Nc4 Qe6 17.Rfd1=) 16.Rac1 (16.Bd3 Qe6=) 16...Rd7 (16...Rd5 17.Bd3=) 17.Bd3 g6 18.Be4 Be6= 19.Qc2 Bd5 20.Bd3 Bf3 21.Nf3 Bg7 22.Ba6 (22.Rfd1 Rd6+=) ½–½. Sternik,Ryszard – Fengsrud,Roy, corr MCO–7, 1995.

11.a4 Na5 12.d4 Rc8 13.Nbd2 Nc3 14.Bc3= Bc3 15.Rb1 c5 16.Nb3 Bf5 17.Rc1 cd4 18.Nbd4 Be4 19.Nd2 Bd2 20.Rc8 Qc8 21.Qd2 Nc4 22.Qb4 Ne5 23.f3 Nc6 24.Nc6 Bc6 25.e4 Rd8 26.Rc1 Qe6 27.a5 Qd6 28.Qb6 Qd4 29.Kf1 Qb6= 30.ab6 a5 31.Rc5 a4 32.Bb5 Bb5=+ 33.Rb5 Kf8 34.Ra5= Rd1 35.Ke2 Rb1 36.Ra4 Rb6 37.Rd4 Ke7 38.f4 Rb2 39.Rd2 Rb4 40.Ke3= b5 41.Kd3 f6 42.Re2 Ke6 43.Kc3 Rc4 44.Kb3 Rc7 45.Rc2 Rc2= 46.Kc2 Kd6 47.g3 Kc5=+ 48.Kd3 b4 (48...b4 49.g4 b3–+) 0–1. Degen,Magda – Liebert,Ursula, Colditz DDR–ch (Women), 1967.

11.Qa4 b5 12.Qc2= Qd7 13.a3 (13.Rc1 Re6=) 13...Bf8 (13...Bd6 14.Bd3 h6 15.Bh7 Kh8 16.Be4=) 14.Nc3 (14.Rc1 Re6=) 14...Rac8 (14...Nc3 15.Qc3 Rad8 16.d4=) 15.Nd5 Qd5 16.Rac1 Na5 17.Qc3 (17.h3 Bh5=) 17...Nb3=+ 18.Rcd1 c5 19.d4 (19.Rfe1 b4 20.Qc4 Be6=) 19...c4 (19...Nd4 20.Nd4 cd4 21.Rd4-/+) 20.h3 Bh5 21.Rfe1 h6 (21...a5 22.g4 Bg6 23.Ne5-/+) 22.Nd2 Be2 23.Re2 Nd2 24.Rdd2 f5 (24...a5 25.e4 Re4 26.Qa5-/+) 25.f3 Rc6 26.Qa5 (26.Re1 Rg6 27.Rf2 Bd6-/+) 26...Rce6 27.Kf2 (27.Qc3!?-/+) 27...Be7-+ 28.Rc2 (28.Qc3 Bg5 29.f4 Be7-+) 28...Bg5 29.f4 (better 29.Bc1 f4! 30.e4 Qd4 31.Kf1-+) 29...Bh4 30.g3 (30.Kf1 Re3 31.Re3 Re3 32.Qd2-+) 30...Bf6 (30...Qh1 31.gh4 Rg6 32.e4 Qg1 33.Kf3 Rg3) 31.a4 Qh1 32.ab5? (better 32.d5 Bd8 33.Qe1 Qd5 34.Be5-+) 32...ab5 (32...Bh4 33.gh4 Rg6 34.e4 Qg1 35.Kf3 Rg3) 33.Qb5-/+ Qh3 (33...Qh2!? 34.Kf1 Qh3 35.Kf2 Qh2 36.Kf1 Qg3 37.Qc4 Kh8-/+) 34.Qc4 Kh7 35.Qd5 Re4 36.Bc1 (36.Qb5 Bh4 37.gh4 Re3 38.Qe8 Re8 39.Re8 Qh2 40.Ke1 Qc2-+) 36...h5 (36...Bd4 37.Qb5 Bf6-/+) 37.Ke1? (better 37.Rc5 Qh2 38.Kf3 Qh1 39.Rg2 Bd4 40.Qf5 (40.ed4?? Qd1 41.Kf2 Re2 42.Kf3 Qf1 43.Rf2 Qf2) 40...g6 41.Rc7 Kh8 42.Qe4 Re4 43.Ke4 Qg2 44.Kd4 Qg3 45.Ke5=+) 37...Qg3 38.Kd2 (38.Kd2 Re3 39.Qf5 Kh6 40.Qb5-+). carlos78 (2380) - kiwi69 (2100), Rated Blitz game, lichess.org, 2016.

11.Nc3 Nc3 12.Bc3 Bc3 13.dc3 Qf6 14.Nd4 Be2 15.Ne2 Ne5 16.Qb3 b6 (16...b5 17.a4 c6 18.Rfd1+=) 17.a4 (17.Nf4 b5+=) 17...Rad8 18.Rad1 Rd1 19.Rd1 Ng4 20.Rf1 Rd8 21.h3 Ne5 22.Nf4 Qd6 23.Rb1 h6 24.Qb4 Qf6 (24...g5 25.Nh5+=) 25.c4 (25.Qe4 Qe7=) 25...a5 26.Qb3 (26.Qb5 Qd6=) 26...Rd2+= 27.Rf1 Nd7 (27...Rb2 28.Qd1+=) 28.Nd5 Qe5 29.f4 (29.Qb5 Nf6 30.Nf6 Qf6 31.Qe8 Kh7=) 29...Qe4 30.Rf2 Nc5 31.Qb5 Rd1 32.Rf1 (32.Kh2 Rc1 A) 33.Nc7? Qe3 (33...Qc4?! 34.Qe8 Kh7 35.f5+=; 33...Rc4?! 34.Qb6 Qe3 35.Rf3+=) 34.Qe8 Qe8 35.Ne8 Rc4–+ (worse is 35...Na4 36.Nd6–+); B) 33.Rd2 Rc4 34.Qc6=) 32...Rd2 (32...Rd3 33.Rf3 Kh7 34.Nc7 Re3 35.Qb6–/+) 33.Rf2+= Rf2 34.Kf2 Qc2 Attacking the isolated pawn on a4 35.Kg1 Qd1 36.Kh2 Qa4 (36...Na4?? 37.Qe8 Kh7 38.Ne7 Qd8 39.Qd8 h5 40.Qg8 Kh6 41.Qh8) 37.Nc7 Qb5 38.Nb5 Kf8 39.Kg1 Ke7 (39...Ne4 40.Na3–/+) 40.Kf1 Ne4 (40...a4 41.Ke2–/+) 41.Ke2+= Nd6 42.Na3 (42.Nc3 Nc4 43.Kd3 Nd6 44.Nd5 Kd7 45.Nb6 Kc6=) 42...Kd7 (42...f5 43.g4+=) 43.Kd3= Kc6 (43...f5 44.Kd4+=) 44.e4 Kc5 The isolani on c4 becomes a target (44...b5 45.cb5 Kc5 46.b6 Kb6 47.e5=) 45.e5 Nf5 46.g4 (46.Nb5 a4 47.g4 Ne7=) 46...Ne7 (better is 46...Nd4=) 47.Kc3?? (better is 47.Nb5=) 47...Ng6–+ 48.Nb5 Nf4 49.Nd6 Nh3 50.Nf7 Ng5 (50...Nf2!? 51.e6 Ng4 52.Kd3–+) 51.Nd6 Ne6 (51...g6!?–+) 52.Ne4 Kc6 53.Nd6 g6 54.Nc8 h5 55.gh5 gh5 56.Ne7 Kc5 57.Nf5 a4 58.Nh4 Nd4 (58...Ng5!? 59.Nf5–+) 59.Ng6 Nc6 60.Nf4? (better is 60.e6–+) 60...Ne5 61.Nh5 Nc4 62.Nf4 Nd6 (62...b5!? 63.Nd3 Kb6 64.Nf4–+) 63.Ne6 Kd5 64.Nc7 Kc6 65.Ne6 b5 (better is 65...Nb5!? 66.Kc4–+) 66.Kb4 Nf5 67.Nc5 a3! 68.Nb3 ½–½. Wagner,Stefan (2145) – Menezes,Christoph (2290), NOE Landesliga, 2016.

11.Nc3 Bf5 12.a3 Nc3 13.dc3 Bd6 14.Qb3 b6 15.Rfd1.

11.d3 Qd6 =+.

11.d4 Qd7 12.Nbd2 Bc3 13.Qb3?? (better 13.Qc1 Nf4 14.Bd1 Bd2 15.Nd2 (15.Qd2 Ng2 16.Qc2 Bf3 17.Bf3 Nh4-+) 15...Bd1 16.Qd1=) 13...Bd2-+ 14.Nd2 Be2 15.Rfe1 Na5 16.Qa3 Nc4 17.Nc4 Bc4 18.e4 Nf4 19.Re3 (19.f3 Qb5-+) 19…Qg4 (19...Qg4 20.g3 Ne2 21.Kg2 Re4-+) 0-1. Jostov,Keylah - Plotnikov,Vladimir (1675), ZI-2009-0-00428, 2009.

11.d4 Nf6 12.Nbd2 Bf5 13.a3 Be7 14.d5 (better is 14.Rc1!?=) 14...Qd5–/+ (14...Nd5?! 15.e4 Nf4 16.ef5 Ne2 17.Qe2 Ba3 18.Qe8 Qe8 19.Ra3=) 15.Bc4 Qd7 16.Qb3 Be6 17.Rfd1 Bc4 18.Nc4 Qg4 19.Rac1 Rab8 20.h3 Qf5 21.Nce5 Ne5 22.Be5 Bd6 23.Bd6 cd6 24.Rc7 d5 25.Rb7 Rb7 26.Qb7 Qc2 27.Rf1 Qa4 28.Qb4 Qc6 29.Nd4 Qc4 30.Rb1 h6 31.Nf5 Qd3 32.Nd6 Rf8 33.Re1 Nd7 34.e4 Rb8 35.Qa4 Ne5 36.Re3 Rb1?? 37.Kh2+– Qf1 38.Qe8 Kh7 39.Qe5 Qh1 40.Kg3 Rg1 41.Qf5 Kg8 42.Qf7 Kh7 43.Qf3 de4 44.Re4 Re1 45.Rg4 Re7 46.Qa8 Qe1 47.Ne4 Qa1 48.Qf8 Qe5 49.Qf4 Qe6 50.Nc5 Qa2 51.Qf5 Kg8 52.Ra4 Rf7 53.Qc8 Kh7 54.f3 Qe2 55.Qe6 Qe6 56.Ne6 Ra7 57.Kf4 g6 58.Ke5 Kg8 59.g4 Kf7 60.f4 Ke7 61.f5 gf5 62.gf5 0–1. Gonzalez Lopez,V – Menendez Rubiera,AC, Asturias–ch Oviedo, 2003.

12.d4 Qe7 13.Qb3 Nf4 (13...Qd7=) 14.ef4 (better 14.Bd1!? Be6 15.Qc2= (worse 15.Qb7 Bd5-/+)) 14...Qe2-/+ 15.Nc3 Bc3 16.Qc3 Bf3 17.Rfe1? (17.Rae1 Qb5 18.d5 f6 19.Qf3 Ne7-/+ (worse 19...Qb2 20.dc6 b5 21.Qd5 Kf8 22.Qc5 Kg8 23.Rd1+=)) 17...Qb5?? (better 17...Nd4 18.gf3 Qe1 (worse 18...Nf3 19.Kh1 Qe1 20.Re1 Re1 21.Kg2 Nh4 22.Kh3+=) 19.Re1 Re1 20.Kg2 Rg1 21.Kh3 Nb5-+) 18.d5=+ Do you see the mate threat? 18...f6 (18...Bd5 19.Qg7 The nicest combinations are those leading to mate) 19.Qf3 Ne7 (worse 19...Qb2 20.dc6 b5 21.Qd5 Kf8 22.Qd3+=) 20.Rab1 Qd7 21.Bc3 Qd5 (better 21...Nd5 22.Rb7 Qd6=+) 22.Re7!+/- Threatening mate... how? 22...Qf3 (22...Re7 23.Qd5) 23.Re8 (23.gf3? Re7 24.Rb7 Rd7-+) 23...Re8 24.gf3 b5 (24...b6 25.Kf1+/-) 25.Bb4 Ra8 (25...Rc8 26.Bc5+/-) 26.Rc1+- Ra7 (26...a5 27.Bd2+-) 27.Ba5 Ra8 (27...Kf7 28.f5+-) 28.Rc7 (worse 28.Bc7 Rc8+-) 28...h6 29.Rd7 (29.Kg2 Kh7+-) 29...Rc8 30.Rd8 (30.Bb4!? Rc6+-) 30...Rd8 31.Bd8 f5 32.Kf1 Kf7 33.Ke2 Ke6 34.Kd3 Kd5 35.Be7 (35.Be7 g6 36.Kc3+-) 1-0. Zwerenz - Gerold,Guenter, corr SOK-87-15, 1987.

12.h3 Be6 13.d4 Nce7 14.Bd3+= h6 15.Qc2 Rc8 16.Nbd2 Bb6 17.Nb3 Nf6 18.Rab1 Qd5 19.Nbd2 Qd8 20.e4 c6 21.Ba1 Rb8 22.Rfd1 Nh5 23.Bc4 Bc4 24.Qc4 Bc7 25.Nb3 b6 26.Bb2 b5 27.Qc2 Nf4 28.Nc5 Qc8 29.Bc1 Neg6 30.Rb3 a5 31.Rc3 Rb6 32.Be3 Re7 33.Bc1 Re8 34.Nh2 Bd6 35.Ng4 b4 36.ab4 ab4 37.Rb3 Rb5= 38.Qc4 Bc5 39.dc5 h5 40.Bf4 Nf4 41.Ne3 Re5 42.Nf5 Qe6 43.Rb4 Rb4 44.Qb4 Re4 45.Qb8 Kh7 46.Ne3 g6 47.Qd6 Kg7 48.Kh2 Ra4 49.Rd4 Qd6 50.Rd6 Ne6 51.Rc6 Ra5 52.Rd6 Rc5 53.g3 Kf6 54.Rd7 Nf8 55.Ra7 Re5 56.Kg2 Ne6 57.h4 Nd4 58.Ra6 ½–½. Rehder,Frank (2200) – Schloer,Thomas (2195), remoteschach.de, 2003.

12.Qb3 b5 13.Nc3 Nb6 14.Rac1 (better 14.d3=) 14...Qf6?? (better 14...Na5 15.Qc2 Nac4-/+) 15.Nb5+- Ne5? (better 15...Na5 16.Qc2 Qh6 17.Nd6 cd6+-) 16.Nd6 Bf3 17.Be5 (better 17.Ne8 Qg6 18.Bf3 Nf3 19.Kh1 Nd2 20.Qd1 Nf1 21.Ng7+- (21.Qf1?! Re8 22.Qa6 Rd8+/-)) 17...Qe5 (17...Re5 18.Bf3 (18.gf3?! Qd6 19.Qc3 c5+=) 18...Qd6 19.Ba8+-) 18.Nf7 (better 18.Qf7 Kh8 19.Ne8+- (19.gf3?! Qd6 20.Rc7 Rg8+-)) 18...Bd5 (18...Qd5 19.Qd5 Bd5 20.Ng5+-) 19.Ne5 Bb3 20.Bc4 (better 20.d4!? Ra7+-) 20...Nc4 21.Nc4 (21.Rc4?! Re5 22.Rc7 Rb8=) 21...a5 (21...Rab8 22.d4+-) 22.Rc3 a4 23.d4 Rad8 (23...Rab8 24.Rfc1+-) 24.Ne5 Rc8 25.Rfc1 Re7 26.h3 (26.f4 Bd5+-) 26...g6 (26...Kf8 27.Nc6 Rd7 28.Kh2+-) 27.Rc6 (27.f4 Bd5+-) 27...Kg7 (27...g5 28.R1c5+-) 28.R1c5 Bd1 (28...Be6 29.f4+-) 29.Nd3 Kh6 (29...Bb3 30.Nb2+-) 30.Rc1 (30.Nb2 Bb3+-) 30...Bb3 31.Nc5 Rb8 32.Rb1 (32.Na6 Rd8+-) 32...Rb5 33.Ra6 c6 (33...Kg7 34.Re1+-) 34.Rc6 Ra7 35.Nd3 (35.e4 Kg7+-) 35...Rb8 36.d5! Bd5 37.Rg6! (37.Rb8?! Bc6 38.Ne5 Bd5+-) 37...hg6 (37...Kg6 38.Nf4 Double attack (38.Rb8 Zwischenzug); 37...hg6 38.Rb8 Zwischenzug) 38.Rb8 Rc7 39.Rb4 (39.Rb5 Bc4 40.Rc5 Rc5 41.Nc5 Bb3+-) 39...Bb3 (39...Rc3 40.Nb2+-) 40.Rb6 (40.Nb2 Rc1 41.Kh2 Ra1 42.Na4 Ra3+-) 40...Rc3 41.Nf4 (41.Ne5!? Bc2 42.Rc6 Rc6 43.Nc6 Kg7+-) 41...Bc2 (41...Bf7 42.Rb7 Kg7 43.Ne6 Kf6 44.Nf8+-) 42.h4 (42.Rb2 Bf5 43.Ra2 g5+-) 42...Kh7 (42...Ra3 43.h5+-) 43.g4 (better 43.Rb2!? Bf5 44.Ra2 Kg7+-) 43...Ra3 44.Rb7 Kh6?? (better 44...Kg8+-) 45.g5 1-0. carlos78 (2210) - nono109 (2170), Rated Blitz game, lichess.org, 2014.

12.Nc3 Nc3 13.Bc3 b5 14.Re1 (14.Qc2 Qd7=) 14...Ne7+= 15.e4 c5 16.h3 Bh5 17.d4 Bg6 18.Bf1 Nc6 19.d5 Ne5 20.Ne5 Be5 21.Be5 Re5 22.a4 Rb8 23.Qd3 c4 24.Qd4 Qe8 25.f3 f5 26.ab5 ab5 27.d6 Rd8 (27...fe4 28.d7 Qe7 29.Rab1+/–) 28.Ra7 fe4 (better is 28...Bf7!?+=) 29.f4+= Re7 30.Re4 Rd6 (30...Be4? 31.Re7 Qg6 32.Re4+– (32.Qe4?! Qe4 33.Re4 Rd6+–)) 31.Qd6 Re4 32.Qd5 Bf7 33.Rf7! Qf7 34.Qe4 g6 35.Be2 Qa7 36.Kf1 Qa1 37.Kf2 Qb2 (37...Qa7 38.Qe3 Qd7 39.Qe5+–) 38.Qe8 Kg7 39.Qe5 Qe5 40.fe5 1–0. Degterev,Pavel (2530) – Kyhos,Alois (1700), Champions League, 2007.

12.Nc3 Nf6 13.d4 Na5 14.Qc2 Qc8 15.Rac1 b5 16.e4 Bf4 17.Rce1 c5= 18.e5 cd4 19.ef6 dc3 20.Bc3 g6 21.Bd1 Bf5 22.Re8 Qe8 23.Qa2 Nc4 24.a4 Rd8 25.Re1 Qd7 26.Bb3 Be6 27.ab5 ab5 28.Rd1 Qc7 29.g3 Rd1 30.Bd1 Nd6 31.Qa8 Nc8 32.Bb2 Qc4 33.Qa5 Bc7 34.Qd2 Nd6 35.Be2 Qe4= 36.Ba3 Nf5 37.Ng5 Qd4 38.Qc1 Bc4 39.Bb2 Qc5 40.Ne4 Qd5 41.Nd2 Be2 42.Qc7 h5 43.Bc3 ½–½. wiking (2290) – Plis (2450), internet, 2010.

12.d4 Re6 13.Nbd2 Na5 (13...Rh6 14.e4 Bh2 15.Nh2-+) 14.Qc2 Rc8 (14...Nf4 15.Bd1 Ng6 16.d5+-) 15.h3 ½-½. Bivens,William – Heyn, corr 3GMM-25, 1995.

12.d4 Qe7 13.Nbd2 =+.

12.Qa4 Bh5 13.Nc3 Nb6 14.Qd1 Qd6 15.d4 Rad8 16.Na4 Nd7 17.Rc1 Nf6 18.h3 Ne4 19.Nc5 Nc5 20.Rc5 Qh6 21.Rc2 Bg6 22.Rc3 Be4 23.Qc1 Rd6 24.Nd2 Bg2 25.Kg2 Rg6 26.Kh2 Bd6–/+ 27.f4 Qh4?? 28.Qe1+= Qh6? 29.Qf2+– Re7 30.Nc4 Rd7 31.Nd6 Rdd6 32.Rc5 +–. Gross,Wilhelm – Merten,Rainer, xviii/20, 1989.

12.Nc3 Nb6 13.Nd4 Be2=+ 14.Nde2 Nc4 15.Bc1 b5 16.Qc2 N6a5 17.d3= Nb6 18.Bb2 c5 19.Rad1 Qh4 20.Nf4 Rad8=+ 21.Na2 Na4 22.Bc1 Bd6–/+ 23.Nc3 Nc3 24.Qc3 b4 25.ab4 cb4 26.Qa1 Bf4 27.ef4 Qh5 28.Be3 Qb5 29.Qb2 Nc6 30.d4 Rd5 31.Rc1 Red8 32.f5 a5 33.f6=+ gf6 34.Rc5 Rc5 35.dc5 Ne5 36.Bd4 Rd5 37.f4 Nd3–+ 38.Qa1 b3 39.Be3 b2 40.Qd1 f5 41.Qc2 Rc5 42.Qb1?? Rc1! (42...Rc1 43.Bc1 Qc5 (43...Nc1?! 44.Rc1 bc1R 45.Qc1–/+) 44.Kh1 Nf2 (44...bc1N?! 45.h3–+; 44...bc1R?! 45.Qd3 Rf1 46.Qf1–+) 45.Rf2 bc1Q 46.Rf1 Qb1 47.Rb1 a4–+) 0–1. Svensek,Marjan (2050) – Mencinger,Vojko (2355), Slovenija, 2002.

12.Qd1 Ne2 13.Qe2 Bd6-/+.

12.Re1 Ne2 13.Re2 Qd5–+.

12.ef4 Re2 13.Ne5 Ne5 (13...b5 14.Qb3 Ne5 15.fe5 Bd2 16.Nd2 Rd2 17.a4–/+) 14.fe5 (14.Qb4 Nd3 15.Qb7 Rb8–+ (15...Nf4?! 16.Qc6–/+)) 14...c5 15.Bc3 Qg5 (15...b5 16.Qc2–/+) 16.Kh1 (16.f4!? Qd8 17.Qc2–/+) 16…Be6 (17.Bb2 Bd5–+) 0–1. Vitkevicius,Juozas – Woschkat,Karl_Heinz, CiF TT–94–0028B, 1994.

12.a3 Ba5 13.Nbd2 Nc3 14.Bc3 Bc3 15.Nc4 Qd5 16.Rc1 Bf3 17.Bf3 Qc4 18.Be2 (18.Qc2 Na7 (18...Na5 19.Qc3 Qc3 20.Rc3 Re7 21.Rc5 Nb3+/- 1.34) 19.Qc3 Qc3 20.Rc3 Nb5 21.Rd3 Rab8+= 0.69) 18...Qa2 (18...Qd5 19.Rc3 Qa5 20.Rb3+/- Rab8 21.Bd3 h6+/- 0.97; 18...Qe6 19.Rc3 Re7 20.Qb1 Nd8 21.Qc2 c6+/- 0.78) 19.Rc3+/- Rad8 (better 19...Re7!?+/- 20.Bc4 Qb2 21.Rb3 Qa2+- 2.87; 19...Nd8 20.Bc4 Qb2 21.Rb3 Qa2+- 4.47) 20.Bc4 (20.Bf3 Rd6 21.Qb1 Qb1+- 1.81) 20...Qb2 21.Rb3 Qa2 22.Qh5 (22.Re1 b5 23.Re2 bc4 24.Ra2 cb3 25.Qb3 Nd4+/-) 22...Rd7 23.Qf5 Rde7 24.Qc5 Nd8 25.Rbb1 Qd2 26.Rfd1 b6 27.Rd2 bc5 28.dc5 Ne6 29.Rd5 g6 (better 29...Kf8+-) 30.c6 Nd8 (30...Kg7 31.Ra5+- (31.Ba6?! Ra8 32.Bc4 Ra3+-)) 31.Rc5 (31.Ba6?! Nc6 32.a4 Kg7+-) 31...a5 (31...Re4 32.Rb8+- (worse 32.Ba6 Ra4 33.Bc4 Ra3+-)) 32.Bd5 (32.Ra5?! Nc6 33.Rc5 Ne5+-) 32...Ne6 (32...a4 33.Rc4+-) 33.Ra5 Nf4 (33...Rd8 34.Rab5+-) 34.Bf3 (34.Bc4 Re4 35.Ba6 Ne6+-) 34...Nd3 (34...Kg7 35.a4+-) 35.Ra7 (35.Rb7 Ne5+-) 35...Ne5 36.a4 (36.Rbb7!? Rd8+-) 36...Rd8 37.a5 Nf3 38.gf3 Rd6 39.a6 Rc6 40.Ra8 Kg7 41.a7 Ra6 42.Rb7 Ra1 (42...Re5 43.f4 (worse 43.Rc7 Kf6 44.Kg2 Re7 45.Re7 Ke7+-) 43...Rea5 44.Rc7+-) 43.Kg2 Re5 44.h4 (44.f4 Rea5 45.Rc7 g5+-) 44...Rea5 45.Rc7 h5 (45...g5 46.h5+-) 46.f4 R5a2 47.Rd7 Ra5 48.Kf3 (48.Rb7 R5a2+-) 48...R5a4 (48...R5a2 49.Rc7+-) 49.Rc7 (49.Rb7 R4a2+-) 49...R4a2 50.Rb7 Rf1 51.Rd8 Rff2 52.Ke4 Ra4 53.Rd4 Ra6 (53...Rd4 54.ed4 Ra2 55.d5+-) 54.Rdd7 Ra4 55.Kd3 Ra3 56.Kc4 Kf6 57.Rf7 Ke6 58.Rg7 Kf5 59.Rbf7 (59.Rbf7 Ke4 60.Rg6 Ke3 61.Rg3 Rf3 62.Rg8 Rf4 63.Rf4 Kf4 64.a8Q Ra8 65.Ra8+-) 1-0. pierre – Cise, internet, 2009.

12.a3 Ba5 13.Nbd2 Re7 14.Nc4 Qd7 15.h3 Bh5 16.Nfe5 Ne5 17.de5 Bg6?? (better 17...Be2 18.Qe2 Bc3 19.Bc3 Nc3+=) 18.Na5+- b6 19.Bf3 c6 (19...ba5 20.Qd5 Qd5 21.Bd5 Rb8+-) 20.Nc6! Qc6 21.Bd5 Qd7 (21...Qe8 22.Ba8 Qa8+-) 22.Ba8 Qd1 1-0. usingprogram (1970) - steinitz1 (1625), kurnik, 2011.

12.a3 Bd6 13.Qb3 Be6 14.Qc2 Bg4 15.Nbd2 Nf6 16.Bd3 Bf3 17.Nf3 Ne4 18.Rac1 h6 19.h3 Kf8 20.d5 White launches an attack 20...Nb8 21.Nd4 g6 22.Be4 Qe4+= 23.Ne6 Re6 24.de6 Qe6 25.Qc3+– Ke7 26.Qh8 h5 27.Rcd1 b5 28.e4! f6 29.Qg7 Qf7 30.Bf6 Ke6 31.Qf7 Kf7 32.e5 Bc5?? 33.Rd8 Bb6 34.Re1 c5 35.e6 (35.e6 Kf6 36.e7 Bd8 37.ed8Q Kg7 38.Re7 Kf6 39.Qf8 Kg5 40.Re5 Kh4 41.Qf4#) 1–0. Makowski,Zbigniew – Brachaczek,Erwin, Rzeszow Poland, 1987.

12.Qc2 Rad8 13.Nbd2? Qf6?? 14.h3 Bh5 15.Bd3= Qh6 16.a3 Bd6 17.Rfe1 g5 18.Kf1 g4= 19.hg4 Bg4 20.g3 Re3 21.Re3?? Ne3–/+ 22.fe3 Qe3?? 23.Bh7?? Kf8 24.Qe4?? Bh3# 0–1. Krafzik,Joachim (2070) – Rigg,Hans (1875), Liechtenstein Seniors op, 2004.

12.Nbd2 Bc3?? 13.Qc1 White gets in control 13...Qb4 14.Ba3 Qa4 15.Bd1 Bd2 16.Ba4+/– Bc1 17.Rfc1 Bd7 18.Bb3 Be6 19.Rc5 Nce7 20.e4 Nf4 21.d5 Bg4 22.Rc7 Bf3 23.gf3 Neg6 24.d6 Ne6 25.Rb7 (25.Rb7 Reb8 26.Rb8 Rb8 27.Rd1+–; 25.Be6 fe6 26.Rac1 Nf4+–) 1–0. Schmidt – Bialas, corr FRG–ch H864, 1975.

12.a3 Bd6 13.Nc3 Qh6 14.g3 (14.Nd5?? Bf3 15.Nf6 Kh8-+ (worse 15...Qf6 16.Bf3 Rab8 17.Rb1+=; 15...gf6?! 16.h3 Be4 17.Rc1-+)) 14...Qh5 15.Nh4?? (better 15.Rb1=+) 15...Nc3-+ 16.Bg4 Nd1 17.Bh5 Nb2 18.Rab1 (18.Rfb1 Nc4 19.Bf3-+) 18...Nd3 (better 18...Nc4 19.Rfc1 N6a5-+) 19.Rb7 (better 19.Rfd1!? Ndb4! 20.ab4 Nb4 21.Bf3-/+) 19…Na5-+ (19...Na5 20.Rbb1 Ba3-+; 19...Ba3?! 20.Rb3 Ncb4 21.Ra3=) 0-1. Soja,Rudolf (1925) - Wegman,William P J (2245), ICCF Corr World Cup, 2000.

12.Qb3 Na5 13.Qc2 Bd6 14.Nbd2 Bf5=+ 15.Qd1 Qg6 16.Rc1 Rad8 17.Nh4 Qh6 18.Nhf3 b5 19.a4 c6 20.Re1 Bb4 21.Rf1 Bg4 22.Nb1 Re3 23.fe3 Ne3 24.Ne5 Nd1 25.Ng4 Qe6 26.Bd1 Nc4 27.Bc3 Bc3 28.Nc3 Nd2 (28...Nd2 29.ab5 Nf1 30.Kf1 ab5–+) 0–1. Frydendal,Odd – van der Houwen,Peter J, EM/H/062 ICCF Email, 2001.

12.Nbd2 Qe7 13.Nb3 (13.Nc4 b5 14.Nce5 Ne5 15.Ne5 Be2 16.Qe2 Bd6=+) 13...Bd6 14.Re1 Bb4 (14...Ra7 15.Nbd2=) 15.Rf1 Nf4 16.d5 Ne2 (better 16...Rad8!? 17.ef4 Qe2 18.Qe2 Re2 19.dc6 Bf3-/+) 17.Qe2=+ Ne5 18.Nbd4 (18.Be5 Qe5 19.h3 Bf3 20.Qf3 Rad8=) 18...Bc5-/+ 19.h3 Bd4 20.hg4 Bb2 21.Qb2 Nf3 22.gf3 b5 (22...Rab8 23.Rfd1=+) 23.e4 h5 24.Rfe1 (worse 24.gh5 Qg5 25.Kh2 Qh5 26.Kg2 Qg6 27.Kh2 f5-/+) 24...Rad8 25.Kg2 (25.Qc3 hg4 26.fg4 Qh4=) 25...hg4 26.fg4 Qh4 27.f3 Rd5 28.Rh1 (28.ed5 A pinning theme 28...Re1) 28...Qf6 29.Qf6 Rd2 (29...gf6?? 30.ed5 f5 31.gf5+-) 30.Kg3 Threatening mate: Rh8 30...gf6 31.Rhc1 Rd7 32.Rc6 Re6 33.Rac1 Rd3 34.Re6 fe6 35.Rc7 Ra3 36.Re7 e5 37.g5 fg5 38.Re5 b4 39.Rg5 Kf7 40.Rc5 Ra2 41.Rc7 Ke6 42.Rb7 a5 43.f4 Ra1 44.Rb6 (44.Kg4 Rb1=+) 44...Kd7 45.f5 Kc7 46.Rb5 Kc6 47.Rb8 ½-½. Nebe,Lutz (1900) - Billion,Paul (2065), IECG, 1999.

12.Nbd2 Qg6 13.a3 Bc3 14.Qb3=+.

11.a3 Ba5 12.Nc3 Bf3 13.Bf3 Nc4 14.Bc1 N6e5 15.Be2 Nd3 16.Qb3 Nce5 17.Qb7 Nc1 18.Rfc1?? (better 18.Rac1 Bc3 19.dc3+/-) 18...Qd2-+ 19.Bb5 Reb8 20.Qe4 Bc3 21.Bf1 0-1. pacalmisu (2365) - domajo (2380), Rated Blitz game, lichess.org, 2016.

11.a3 Bd6 12.d3 Qd7 13.Nc3 Rad8 14.Ne4 Bf8 15.Bf6 =.

11.Qc2 a6 12.d4 Qd5 (12...Qd7 13.Bd3 Bf3 14.Bh7 Kh8 15.Bf5=; 12...Bd6 13.a3 Qf6 14.Nbd2 Qf5 15.Bd3= 0.16; 12...Nd5 13.a3 Ba5 14.Nc3 Qd7 15.Nd5= 0.09; 12...Bh5 13.a3 Bd6 14.Nc3 Qe7 15.Rfc1= 0.00; 12...Qe7 13.Nbd2 Bd6 14.a3 Nd5 15.Bd3= 0.22; 12...h6 13.a3 Bd6 14.Nc3 Qd7 15.Rfd1= 0.03) 13.h3 (13.Nc3 Qd7= 14.Bd3 h6 15.Nd2= -0.03) 13...Bf5=+ 14.Qc1 (14.Qb3 Qd7 15.Rc1= -0.25) 14...Na4 (14...Rad8 15.Nc3=+ -0.37) 15.Nc3 (15.Bc4=+ -0.28) 15...Nc3 16.Bc3 Rac8 (16...Bd6 17.Nd2 Qe6 18.Bf3 Bh3 19.Ne4= (19.gh3?? Qh3 20.Rd1 Bh2 21.Kh1 Bg3 22.Kg1 Qh2 23.Kf1 Qf2)) 17.Bb4= Nb4 18.Ne5 (18.Qb2 c5=) 18...b5 (18...Na2? 19.Qb2 Be6 20.Bc4+-) 19.Qc3 (19.Bf3 Qd6 20.a3 Nc2=) 19...Qd6 (19...c5 20.Bf3 Be4 21.Qb3 Re5 22.Qd5 Bd5 23.de5 Bf3 24.gf3=) 20.a3 (20.a4 f6 21.Nd3 Bd3 22.Bd3 Nd3 23.Qd3+=) 20...Nd5=+ Black launches an attack 21.Qc6 f6 22.Qd6 cd6 23.Ng4 (23.Bf3 Nc3 24.Nc6 Be4 25.Be4 Re4=) 23...Nc3 24.Bd1 Nd1 25.Rfd1 Bc2 (25...Rc2 26.Nh2-/+) 26.Rdc1 Kf7 (26...Rc4 27.Kh1-/+) 27.Kf1 (27.Nh2 a5=+) 27...Rc4-/+ 28.Ke1 f5 29.Nh2 Re7 (29...Be4 30.Nf3-/+) 30.Kd2 Be4 31.f3 Bd5 32.Nf1 Kf6 (32...Re6 33.Rc4 bc4 34.Ng3=+) 33.Ng3= Rec7 34.e4 (34.Rc4 bc4 35.e4 fe4 36.fe4 c3 37.Kc2 Bc6=) 34...fe4=+ 35.fe4 Rd4 36.Ke3 Rdc4 37.Rf1 Kg6 38.ed5 (better 38.Rad1!? Rc3 39.Kf4=) 38...Rc3-/+ 39.Kf4 Rf7 40.Kg4? (better 40.Ke4 Rg3 41.Rf7 Kf7 42.Ra2-+) 40...Rc4-+ 41.Ne4 Re4 42.Kg3 Rf1 43.Rf1 Re3 (43...Rd4 44.Kf3-+) 44.Kf4 Ra3 45.Re1 Ra4 46.Kf3 Kf5 47.Re6 (47.g4 Kg5 48.Re7 g6 49.Rh7 Ra3 50.Ke4 Kf6-+) 47...h5 (47...Ra3 48.Kf2-+) 48.Rd6 Ke5 49.Rd7 g6 50.Rg7 (50.g3 Ra3 51.Kf2 b4-+) 50...Rf4 (50...Kd5?! 51.Rg6 h4 52.g4-+) 51.Kg3 (51.Ke3 Rf6-+) 51...h4 (51...Rf6 52.Rd7-+) 52.Kh2 Rf6 53.Rh7 Kd5 54.Rh4 a5 55.Rh8 a4 56.Ra8 Kc4 57.g4 Kb3 58.g5 Rc6 59.Rf8 (59.Ra5 b4 60.h4 a3-+) 59...Rc2 60.Kg3 a3 61.h4 a2 (61...a2 62.Rf1 Rb2-+) 0-1. Turczynowicz,Jerzy - Schneider,Hans, CiF, 1985.

11.Nc3 Qf6 12.Qc2 Qe7 13.d4 Bd6 14.Nb5 Rac8 15.Rfc1 =.

11.d3 Nd5 12.a3 Ba5 13.Nd4 Be2 14.Ne2 Qd7 15.Qb3 =.

11.d4 Qf6 12.Qb3 Qg6 13.Rc1 Bd6 14.d5 Nb4 15.Nc3 =+.

11.a3 Bc5 12.d4= Bb6 13.Nbd2 Qg6 14.Rc1 a6 15.Nc4 Rad8 16.Re1 Ba7 17.Qb3+= White launches an attack 17...Bc8 18.Nce5 Ne5 19.Ne5 Qb6 20.Bc4 Be6 21.e4 Nf6 22.Qb6 Bb6 23.d5 Bc8 24.g3 Re5 25.Be5 Ng4 26.Bc7 Bc7 27.Be2 Bb6 (27...Bd6 28.Rc8 Rc8 29.Bg4+=) ½–½. Dopper,Johan – da Riva Alonso,Jose E, corr ICCF cup X, 1994.

11.d4 Nf6 12.Nc3 a6 13.Qd3 Bf5 14.Qd1 Na7 15.Qb3 a5 16.a4 Be6 17.Qc2 Qd6 18.Na2 Ba2 19.Ra2 c6 20.Bd3 g6 21.Ne5 b5 22.f4 Nd5 23.Rf3 Rac8 24.Rg3 Be1 25.Ra1 1–0. Rosner – Baaske, corr DDR–I–752.

11.d4 Qg6 12.Bd3 (12.Qd3 Qh5=+) 12...Qh5 (12...Qh6 13.h3 Be6 14.Bb5=+) 13.h3 (13.a3 Bd6 14.h3 Be6=) 13...Bf3 (13...Bd7 14.Nbd2=) 14.Qf3 Qf3 15.gf3 Rad8 (15...Nce7 16.a3 Ba5 17.Rd1=) 16.Rc1 Nce7 17.a3 Bd6 (17...Ba5 18.Nc3=) 18.Nd2+= Ng6 (18...c6 19.Ne4+=) 19.Ne4 Nh4 20.f4 (20.Be2 Nf5+=) 20...Bf4= 21.Nc5 b6 22.Nb7 Rb8 23.Rc6? (better is 23.Ba6!? Bg5 24.Kf1=) 23…Rb7–/+ (24.ef4 b5–/+ (< 24...Nf4 25.Ba6 Rbb8 26.Rc7–/+)) 0–1. Trkn – guest244, ICC, 2004.

11.d4 Qh6 12.h3? (better 12.Bd3=+) 12...Bh3-+ 13.gh3 Qh3 14.Ng5 (14.Bd3 Qg4 15.Kh1 Bd6-+) 14...Qh4 (14...Qh6!? 15.Nf7 Qg6 16.Bg4-+) 15.Nf7-/+ Kf7 16.Bf3? (16.Bh5 g6 17.Bf3 Qg5 18.Bg2 Rad8-/+) 16...Qg5 (16...Rad8!? 17.Bg2-+) 17.Bg2 Rad8 18.Nd2 Bd2 19.Qd2 Re6 (better 19...Rd6!? 20.f4 Qf5-+) 20.f4-/+ Qg4 (20...Qe7 21.e4 Re4 22.Be4 Qe4 23.Rae1 Qg6 24.Qg2-/+) 21.Rae1 Nf6 22.f5 Ree8 (22...Re4 23.Qc3=+) 23.Qd3 (23.Qc2 Nb4 24.Qc7 Rd7 25.Qc4 Nbd5=+) 23...Nb4-/+ 24.Qb3 (24.Qe2!?-/+) 24…Nbd5 ½-½. Grasso,Gae (2030) - Meo,Antonino (1645), Erice ITA, 3rd Open, 2012.

11.Nd4 Bd7 12.Nb5 Qg6 13.Bc4 Nb6 14.Be2=+ Rac8 15.Re1 (15.Re1 a6 16.Nd4–/+; 15.a3 Be7=+). Rosner,Dirk – Gensrich,G, corr 11.PV50, 1995.

11.Nd4 Be2 12.Ne2 Rad8 (12...Qh6 13.Ng3 Bd6 14.f4=+) 13.Ng3 (13.a3 Bc5=+) 13...Qg6-/+ 14.d4 Na5 (14...Bd6 15.Nc3 Bg3 16.hg3-/+) 15.a3 (15.e4 Nb6=+) 15...Bd6 16.Nd2 c5 (16...Bg3 17.hg3 Nc6=+) 17.Rc1 (17.dc5!? Bc5 18.Qa4=+) 17...cd4-/+ 18.ed4 Bf4 19.Rc2 b5 (19...Bg3 20.hg3 b5 21.Rc5-/+) 20.Nf3 Nc4 21.Bc1 (21.Re2-/+) 21...Bc1 (21...Bg3 22.hg3 a6 23.Re1-/+) 22.Qc1 (22.Rc1 Na3 23.Ne5 Qf6=+) 22...Qa6-/+ 23.Nf5 h6 24.Ne5 (24.Nd2 Na3 25.Rc6 Qb7-/+) 24...Ne5 25.de5 Re5 26.Rc6 Qa4 27.Rc8 Ree8 28.Rd8 Rd8 29.Rd1 Kh7 30.Rd4 Nf4 31.Ra4 Ne2 32.Kf1 Nc1 Threatening mate... how? 33.Rd4 Rd4 34.Nd4 a6 35.Ke1 Nd3 36.Kd2 Nf2 37.Kc3 Ng4 38.Kb4 Ne3 39.g3 (39.Ka5 Nc4 (39...Ng2 40.Ka6 Ne1 41.Kb5+=) 40.Ka6 Na3-/+) 39...Kg6-+ 40.Kc5 (40.Ka5 Nc4 41.Ka6 Na3-/+) 40...Kg5 (40...Nf1 41.Kb6 Nh2 42.Ka6=+) 41.h3 Kf6 42.g4? (better 42.Nc6-+) 0-1. Blaszczak,Jan - Osinski,J, corr Poland, 1996.

12.Qa4 Bh5 13.Qb3 h6 14.Rc1 Rab8 15.Bd1 a6 16.Nc3 Nc3 17.Bc3 Qd3 18.Rab1 Bb6 19.Qb2 f6 20.Nd4 Bd1 21.Nc6 bc6 22.Rd1 Ba7 23.Qa2 Qd5 24.Qc2 Kh8 25.Qg6 Qd6 26.Rb4 Red8 27.Rf4 Rf8 28.Ra4 c5 29.Rb1 Rb1 30.Qb1 Rb8 31.Qg6 Qd7 32.Rh4 Rb6 33.h3 Re6 34.g4 Qa4 35.Qf7 (35.Qf7 Rb6 36.g5 Qd1 37.Kg2+–) 1–0. Dopper,Johan – Verheijen,Frits, corr NED 1–416, 1989.

12.Qb3 Rad8 13.Nc3 (13.Qb7? Rb8 14.Qa6 Rb2-+) 13...Be6 (13...Bc3 14.Bc3 Nc3 15.dc3=) 14.Qc2= (14.Qb7 Rb8 15.Qa6 Rb2-/+) 14...Nc3 15.Bc3 Bc3 16.dc3 h6 (16...Bd5 17.Rfd1=) 17.Rfd1 Qc5 (17...Bd5 18.Bc4 Be4 19.Rd6 Bc2 20.Rd8 Rd8 21.Nd4=) 18.Qb2 b6 19.Nd4 Bc4 (19...Nd4 20.cd4 Qg5 21.Bb5=) 20.Nc6 Qc6 21.Bc4 Qc4 22.Rd4 Qc6 23.Rad1 ½-½. Baeckstroem,Mikael (2255) - Gavrijski,Dimitar (2170), corr WSTT/3/06/Semifinal, 2008.

12.Qb3 Nf4 13.Bc4 (worse 13.ef4 Re2 14.Ne5 Ne5 15.Be5 Qa6-/+) 13...Ne6 14.Bd5= (14.Qb7 Rab8 15.Qa6 Bf3-+).

12.Qc2 Nf4 13.Bd1 (13.ef4 Re2 Pinning (13...Re2 Deflection)) 13...Nd3 14.Bc3 Bb6 15.Qa4 Bf5 16.Nh4 Be4 17.Bf3 Nc5 18.Qd1 Bd3 19.Be2 Qe6 20.Bd3 Nd3 21.a4 Rad8 22.a5 Bc5 23.Na3 Qe4 24.Nf3 h6 25.Nc2 Re6 26.Nce1 Rg6 27.Nd3 Qd3 28.Qb1 Qd5 29.d4 Bd6 30.e4 Qh5 31.e5?? (better is 31.Qd3=) 31...Rg2 (31...Qf3 32.Qg6 Qc3–+ (32...fg6? 33.gf3 Bb4 34.Bb4 Nb4 35.Rfc1+–)) 32.Kg2–/+ Qg4 33.Kh1 Qf3 34.Kg1 Qg4 (34...Qc3 35.ed6 A) 35...Na5 36.Rc1 Qd4 37.Qf5 (37.Ra5?! Qg4 38.Kf1 Qh3 39.Ke2 Re8 40.Kd2 Qh2=) 37...Rd6 38.Ra5+/– (38.Qa5?? Rg6 39.Qg5 Rg5 40.Kf1 Qd3 41.Ke1 Re5); B) 35...Rd6–+) 35.Kh1= Qf3 ½–½. Melich,Jindrich (2080) – Hruby,Milan (2045), CZE–chT2a, 2007.

12.d4 Rad8 13.Qc2 Nce7 14.Rc1 Nf5 15.Bd3 Re3? (better is 15...Bf3 16.Bf5 g6+=) 16.fe3+– (< 16.Bf5 Bf5 17.Qf5 Re2+–) 16...Nde3 17.Qf2 Bf3 18.Qf3 Nd4 19.Qe3 (better is 19.Bh7 Kh7 20.Qe3+–) 19...Nb3?? (better is 19...Nf5 20.Qe4 Qd3 21.Qd3 Rd3+–) 20.Bh7 Kh7 21.Qb3 Bb6 22.Kh1 Qf4 23.Nc3 c6 24.Rf1 Qh6 25.Rf7 Rd4 26.Na4 Rh4 27.Rg7 (27...Qg7 28.Bg7 Ra4 29.Qf7 Rg4 30.Be5 Kh6 31.Qf6 Kh7 32.Rd1 a5 33.Rd7 Rg7 34.Qg7) 1–0. Bonetti,Shane – Ursa_Major (1605), ICC, 2002.

12.d4 Qh6 13.Nbd2? (13.Qb3 Rad8 14.Rc1= (14.Qb7? Rb8 15.Qa6 Rb6-+)) 13...Ne3!-+ 14.fe3 Qe3 15.Rf2 Bd2 16.Bc4 Bf3 17.Qf3 Qf3 18.Rf3 Re7 19.Raf1 Rf8 20.Kh1 Na5 21.Ba2 b5 22.Rf5 a6 23.a4 g6 (23...ba4 24.Ba3 Rd7 25.Bf8 Kf8 26.Be6 Rd4 27.Rf7 Ke8 28.Rg7+-) 24.Rf6 b4 (better 24...c6-+) 25.Bd5? (25.Ra6 b3 26.Ba3 ba2 27.Be7-+) 25...c6!-+ 26.Bc6 Bg5 (26...Nc6?! 27.Rc6 Re6 28.Rc2-/+) 27.Rd6 Nc4 (27...Nc6?! 28.Rc6 Re2 29.Bc1 Bc1 30.Rfc1-+) 28.Rd5 Ne3 (28...Nb2?! 29.Rg5 Rc8 30.d5-+) 29.Rg5 Nf1 30.Rc5 (30.Re5 Re5 31.de5 Rd8-+) 30...Re2 31.Rc1 Ne3 (worse 31...Rb2 32.Rf1 b3 33.Bb7-+) 32.Rb1 Nc4 (better 32...Rc8!? 33.d5 Rb2 34.Rb2 Nd5 35.Kg1 Rc6 36.g4-+) 33.Ba1 Rb8 34.Kg1 (34.Bf3 Re3 35.Bd5 Rbe8-+) 34...b3 35.Kf1 (35.Bf3 Ra2 36.Bc3 b2-+) 35…Rc2 (35...Rc2 36.Re1 b2 37.Bb2 Rbb2-+) 0-1. Cotonnec,M (2290) - Albaric,Etienne (2225), 94th ch-Paris IdF, 2019.

12.Nd4 Be2 13.Qe2 Nd4 14.Bd4 c5 15.Bc3 Bc7 16.g3 Re6 17.Bb2 Rae8 18.Qg4 Rg6 19.Qf3 Nf6 20.Qb7? (better is 20.Bf6 Qf6 21.Qf6 Rf6 22.Nc3+=) 20...Rb8–+ 21.Qa7 Rb2 22.Qa8 (22.Nc3 h6 (22...Rd2?! 23.Nb5 Bb6 24.Nd6 Ba7 25.Nc8=)) 22...Rb8 23.Qa4 Qe6 (better is 23...Ng4 24.Nc3 Nh2 25.Kh2 Rg3–+) 24.Qc2 (24.Nc3 Rd8 25.Rfd1–+) 24...Qh3 25.Qc5 (25.Qg6 hg6 26.f4–+) 25…Ng4 (25...Ng4 26.Qh5 Qh5 27.h4 Nf2 28.Nc3 Nh3 29.Kh2 Qh4 30.Ne2 Bg3 31.Kg2 Be5 32.Ng3 Qg3 33.Kh1 Qg2) 0–1. Neumann,Frank (1650) – Schemmann,Bernhard (2345), RSS5E NoEngine–28, 2007.

12.Nd4 Be2 13.Ne2 Ne5 14.d4 (14.Be5 Qe5 15.d4 Qe6=) 14...Nc4 (14...Ng4!? 15.Ng3 Nge3 16.fe3 Ne3–/+) 15.Qb3= Nb2 16.Qb2 Rab8 17.Nbc3 c6 18.Nd5 cd5 19.Rac1 Bc7 20.g3 Qd7 21.Qb3 Red8 22.Rc2 Bb6 23.Nf4 g6 (23...Rbc8 24.Rc8 Qc8 25.Nd3+=) 24.Rfc1+/– Kg7 25.Kg2 Qf5 26.Nd3 Qe4 27.Kg1 h5 28.Ne5 f6 29.Rc7 Bc7 30.Rc7 Kg8 31.Qb4 (31.f3 Qf5 32.e4 Qg5+/–) 31...Re8 (31...h4 32.Nd7 Rd7 33.Rd7=) 32.Qb5 (32.Nd7 Qe7 33.Qe7 Re7 34.Nf6 Kf7 35.Re7 Ke7 36.Nd5 Ke6 37.Nf4 Kf6 38.e4+=) 32...Red8 (32...Rec8 33.Nd7 Kg7= (33...Rc7? 34.Nf6 Kf8 35.Ne4 de4 36.Qe5 Rc1 37.Kg2+–)) 33.Qb4 (33.Nd7 Qe7+=) ½–½. Mueller,Klaus – Scholz,Guenter, corr ICCF EU–M–283, 1973.

12.h3 Bf5 13.Qb3 Rad8 14.Rc1 (14.Qb7?? Rb8 15.Be5 Re5-+) 14...Nf4 (14...Bb6 15.Nc3 Be6 16.Qc2=) 15.Bc4= (15.ef4 Re2 16.Qb7 Rb8 17.Qc6 Qc6 (17...Rb2? 18.Qd6 cd6 19.Nd4 Bd2 20.Nd2 Rbd2 21.Nf5+-) 18.Rc6 Rb2+/-) 15...Nh3? (better 15...Ne6=) 16.gh3+/- Qg6 (16...Re7!?+/-) 17.Kh2+- Qd6 18.Kh1 Qh6 (better 18...Be4 19.Be2 Bd2+/-) 19.Bf7 (19.Qb7 Qh3 20.Kg1 Qf3 21.Bf7 Kf7 22.Rc6 Be4 23.Rc7 Bc7 24.Qc7 Ke6 25.Qe5 Kd7 26.Qd4 Kc8 27.Qc5 Kb8 28.Qb5 Ka8 29.Qc6 Bc6 30.e4 Be4 31.Bg7 Qg2) 19...Kf8 20.Be8 (20.Nh2 Re7 21.Bc4 (worse 21.Qb7 Rf7 22.f3 Rb8 23.Qc6 Qc6 24.Rc6 Rb2-/+) 21...Bd2 22.Nd2 Rd2 23.Bc3 Be4 24.Kg1 Qh3 25.Bf1-+) 20...Qh3+- 21.Kg1 Qg4 22.Kf1 Bd3 23.Qd3! Rd3 24.Bc6 bc6 25.Ke2 Rd7 26.Rg1 (26.Rc6? Rf7 27.Bf6 Rf6 (worse 27...gf6 28.d3-/+) 28.Rf6 gf6-+) 26...Qc4 27.Ke1 Qd5 28.Rg3 Rf7 29.Ng5 Qh1 30.Ke2 Qh5 31.Kf1 ½-½. Benassi,Aspasio (2240) - Permykov,Andrey (2235), FICGS, 2015.

12.a3 Ba5 13.Nbd2 Bd2 14.Nd2 (14.Qd2 Bf3 15.Bf3 a6=) 14...Be2 15.Qe2 b5 (better 15...a6!?=) 16.Qb5+/- Qg6 (16...Rb8 17.Qd3+/-) 17.Rac1 Re6 18.Rc5 Nce7 19.Nc4 a6 20.Qa5 Rc6 21.Ne5 Rc5 22.Qc5 Qb6 23.Qc2 (23.Qc2 Rb8 24.Bc1+/-; 23.Qb6 cb6 24.e4 Nf4+-) 1-0. Friberger,Torbjorn - Marolt,Tone, corr Slovenia-Sweden, 1999.

12.a3 Ba5 13.Nbd2 Qe7 14.Nc4 Bc3 (14...Nf4 15.Rc1=) 15.Qc1 Bb2 16.Qb2 b6 17.h3 Bf5 18.Rac1 (18.Rfc1 Qf6=) 18...Qf6 19.Nce5 Ne5 20.de5 (20.Ne5 Re6=) 20...Qe7 21.Rfd1 c5 22.Bb5 Rf8 23.Bc4 (23.Qb3 Be6=) 23...Nc7=+ 24.Kf1 (24.Bb3 b5=+) 24...b5 25.Rd8 (25.Be2 a6=+) 25…Rd8-/+ (25...Rd8 26.Be2 c4=+). Oppelender,Jakob - Rusack,Burghard, DESC, 2001.

12.a3 Ba5 13.Nbd2 Qg6 14.Rb1=+.

12.Bf3= Rad8 13.Qb3 Na5 14.Qc2 Qg6 (14...Qe6 15.Bd5 Rd5 16.Qc7=) 15.Rc1 (15.Qg6 hg6 16.Rc1 c6+=) 15...c6 (15...Qc2 16.Rc2 c6 17.Bd4=) 16.d4 Nb6 (16...Qc2 17.Rc2 Be7 18.Nd2=) 17.Nd2 (17.Qg6 hg6 18.Ba3 Ba3 19.Na3 Nd5+=) 17...Qc2= 18.Rc2 Na4 (18...Bd2 19.Rd2 Nac4 20.Rc2=) 19.Nc4 Nc4 20.Rc4 a5 (20...Nb2? 21.Rb4 Nd3 22.Rb3+-) 21.Bc1 b5 (better 21...Nb6!? 22.Rc2 Nd5+=) 22.Rc6+- Rc8 23.a3 Bc3 24.Rb1 b4 25.ab4 (25.Ra6 ba3 26.Ba3 Rb8 27.Rb8 Rb8+-) 25...Bb4+/- 26.Ra1 Nc3 27.Kf1 g6 28.Bd2 Rc6 29.Bc6 Rc8 30.Bb7 Rc7 31.Bf3 Ra7 Black prepares the advance a4 32.Rc1 Nb5 33.Ke2 Bd2 34.Kd2 a4 35.Ra1 Nd6 (35...a3 36.Kc2+-) 36.Bd5 (36.Kc3 Rc7 37.Kb4 Rc2+-) 36...Ra5 37.e4 a3 38.f3 Ra4 (38...h6 39.Kc3+-) 39.Ke3 Kg7 40.Bc6 Nc4 41.Kf4 (41.Ke2!? Rb4 42.g3+/-) 41...Ra5+/- 42.Bd5 g5 43.Kg3 Ne3 44.Bb3 f5 45.Kf2 f4 46.g3 Kf6 47.h4 h6 48.hg5 hg5 49.Ke2 Ng2 50.gf4 Nf4 51.Ke3 Ng2 52.Kd3 Nf4 53.Kc4 Ra7 54.Kc5 Nd3 (54...Ke7 55.Bc4+/-) 55.Kb6 Ra8 56.e5 (56.Bc4 Nb2 57.Bb5 Ke7+-) 56...Ne5 57.de5 Ke5 58.Kc5 Kf4? (58...a2 59.Bc4+/- (59.Ra2?! Ra2 60.Ba2 Kf4=; 59.Ba2?! Kf4=)) 59.Bd1?? (better 59.Be6+-) 59...Rd8 60.Kc4 Rd1?? (better 60...a2+=) 61.Rd1+- Kf3 62.Kd3 g4 63.Rf1 Kg2 64.Ke2 Kh2 65.Ra1 a2 66.Kf2 (better 66.Ra2!? Kh3+-) 66...g3 67.Kf3 g2 68.Kf2 (68.Kf2 Kh3 69.Ra2+-; 68.Ra2?! Kh1 69.Rg2=) 1-0. Teichmann,Erik (2385) – Waddingham,Graham A (2260), GBR-ch72 Edinburgh SCO, 1985.

12.Bf3 Rad8 13.d4 Re6 14.a3+= Ba5 15.Nd2 Bd2= 16.Qd2 Nce7 17.e4+= Nb6 18.d5 c6 19.Qd4 f6?? 20.de6+– Qd4 21.Bd4 Rd4 22.Rfd1 Rd1 23.Rd1 g6 24.Rd7! Kf8 25.Rb7 Nbc8 26.Be2 Nd6 27.Ra7 Ne4 28.a4 Nc5 29.a5 Ne6 30.a6 Ke8 31.Bc4 Nd8 32.Rc7 (32.Rc7 c5 33.a7+–) 1–0. pcmvr – bigart (2535), net–chess.com, 2009.

12.Nc3 Nc3 13.Bc3 Bc3 14.dc3 Rad8 15.Qa4 Qf6 (15...b6 16.Qh4 (16.Rfd1 Qf6 17.Rd8 Rd8 18.Rc1 h6=; 16.Rad1 Qf6 17.Rd8 Rd8 18.Qb5 Bg6=+; 16.Rae1 a5 17.Rd1 Qf6 18.Rd8 Rd8=) 16...Bf3 17.Bf3 Qg6 18.Rad1 Rd1=; 15...Bg6 16.Bb5 (16.Rfd1 Qf6 17.Bb5 Rd1 18.Rd1 Qc3=; 16.Rad1 Qe7 17.Rd8 Rd8 18.Nd4 Nd4=; 16.Qb5 b6 17.Rad1 Qf6 18.Qa4 Rd1=) 16...Be4 17.Ng5 Bd3 18.Bc6 bc6=) 16.Qb5 Ne5 17.Qb7 Rb8 (17...Bf3 18.Bf3 Nf3=) 18.Qd5 (18.Qa7!? Nf3 19.Bf3 Bf3 20.gf3 Qf3 21.Qc7 Qh3 22.Rfc1=) 18...Rbd8 (18...c6=+) 19.Qb7 ½-½. forsetinn (2300) - eggis49 (2295), gameknot.com, 2014.

12.Nc3 Nc3 13.Bc3 Bc3 14.dc3 Rad8 15.Rb1 A) 15...Qg6 16.Qa4 (16.Qb3 Bf3 17.Bf3 b6 18.Qa4 Ne5=; 16.Nd4 Be2 17.Qe2 b6 18.Qa6 Rd5=; 16.Qc1 Bf3 17.Bf3 b6 18.Rd1 Ne5+=) 16...b6 17.g4 Re4 18.Nd4 Ne5+=; B) 15...Qh6 16.Qa4 (16.Nd4 Be2 17.Qe2 b6 18.Qc4 Ne5=) 16...Rb8 17.Qh4 Qg6 18.g4 Qc2+=; C) 15...Qf6 16.Qa4 (16.Qb3 b6 17.Rfd1 Ne5 18.Ne5 Be2+=; 16.Qc1 b6 17.Qb2 a6 18.Rbd1 b5+=; 16.Nd4 Be2 17.Qe2 b6 18.Qa6 Re7=) 16...b6 17.Rbd1 Rd1 18.Rd1 a6=.

12.Nc3 Nc3 13.Bc3 Bc3 14.dc3 Rad8 15.Qd6 A) 15...Rd6 16.Rfd1 (16.Rad1 Ne5 17.g4 Bg6 18.Rd6 cd6+/–; 16.Rab1 b6 17.Rbd1 Bf3 18.Bf3 Ne5=; 16.Rfb1 b6 17.Rd1 Ne5 18.g4 Bg6=) 16...Ne5 17.g4 Bg6 18.Rd6 cd6+/–; B) 15...cd6 16.Rad1 (16.Rfb1 b6 17.Rb5 Bg6 18.Rd1 Be4=; 16.Rfd1 Ne5 17.g4 Bg6 18.Rd4 Nc6=; 16.Rab1 b6 17.Rb5 Ne5 18.g4 Bg6=) 16...d5 17.Rd2 Bg6 18.Rfd1 Be4+=.

12.Nc3 Nc3 13.Bc3 Bc3 14.dc3 Qf6 15.Nd4 Be2 16.Ne2 Rad8 17.Nd4 Ne5 18.Qb3 b6 19.Nb5 Qg6 20.Nc7 (worse 20.Na7 Nf3 21.Kh1 Nd2-+) 20...Nf3 21.Kh1 Qd6 22.gf3 Qc7 23.Rad1 Qc6 24.e4 Qh6 25.Kh2 Qf4 26.Kg2 Qg5 27.Kh2 Qf4 28.Kg2 Qg5 29.Kh2 ½-½. Hal1958 – Marceli, playchess.de, 2005.

12.Nd4 Be2 13.Ne2 Rad8 14.d4 Qg6 15.Nbc3 Bc3 16.Nc3 Ncb4 17.Qa4 b6 (17...a6 18.Qb3=+) 18.Rac1 (18.Nd5 Nd5 19.Qa7 f5=) 18...a5 19.Ba3 Nc3 20.Rc3 Nd5 21.Rc6 Qd3 22.Rd1 Qe4 23.Bc1 Qb1 (23...Re6 24.Qc2=) 24.Re1 Re7 25.Bd2 Qd3 26.Qc2 Qc2 27.Rc2 f5 28.g4 g6 29.f3 f4 (29...Rde8!?=) 30.e4+= Nb4 31.Bb4 ab4 32.d5 (32.Rc4 c5 33.dc5 bc5 34.Rc5 Rd2+=) 32...Rd5= 33.Rc7 Rdd7 34.Rc8 (34.Rc8 Kg7 35.Rc6+=) 1-0. Trokenheim,Marek (1850) - Ropokis,Dimitrios (1650), FICGS, 2017.

11.a3 Rb8 12.Re1 Bf3 13.Bf3= Be5 14.d4+= Bf6 (14...Bf6 15.Nc3 Nce7+=). kazimierski – Rparkes, playchess.de, 2001.

11.a3 Qe7 (--> 10.0-0 Qe7 11.a3 Bd6).

11.Qa4 Bh5 12.Nc3 Nb6 13.Qc2 Qe7 14.Nb5 Ne5 15.Nd6 Nf3?? (15...cd6 16.Rac1=) 16.gf3?? (16.Bf3 Bf3 17.Ne8+- (worse 17.gf3 cd6 18.Qf5 Rec8=)) 16...Qd6= 17.Kh1 Qd5 18.e4 Qc6 19.Qb3 (19.Qc6 bc6 20.Rg1 g6+=) 19...Qe6 20.Qc3 f6 21.a4 Kh8 22.a5 (22.Qc7 Rad8 23.Rg1 Bg6+/-) 22...Nd7 (better 22...Nd5!? 23.Qb3 Rad8=+) 23.Qc7+= Ne5 24.Be5 fe5 25.Rg1 Re7 26.Qc4?? (26.Qc5 Rd8+=) 26...Qf6?? (better 26...Bf3 27.Rg2 Qc4 28.Bc4 Be4-+) 27.Qc3= Rf8 28.Rg3 Ref7 29.Rag1 Qe7 (better 29...Bg6!?+=) 30.d4+/- ed4 31.Qd4 b6 32.ab6 ab6 33.Qb6 Bf3 34.Bf3 Rf3 35.Rf3 Qe4 36.Qe3 Qf3 37.Qf3 Rf3 38.Kg2 Rf6 39.Re1 h6 40.Re3 Kh7 41.Re7 Rg6 42.Kf1 Rf6 43.Kg2 Kg6 44.Re8 Rb6 45.Re3 Kh7 46.Re5 Rc6 47.Rd5 Rg6 48.Kf1 Rf6 49.Kg2 Kg6 50.h3 Rf5 51.Rd6 Rf6 52.Rd7 Rf5 53.Rd6 Rf6 54.Rd7 Rf5 55.Rd6 ½-½. norba94 (2380) - pizdez (2465), Rated Blitz game, lichess.org, 2016.

11.Qb3 Nb6 12.h3 Bh5 (12...Be6 13.Qc3 f6 14.Qc1=) 13.a4 a5 14.Nc3 Nb4 15.Nb5 Bf8 16.Rac1 c6 17.Nbd4 Qd5 18.Qd5 N6d5 19.Bc4 Bg6 20.Ba3 Bd3 21.Rfd1 (21.Bd3!? Nd3 22.Ra1-/+) 21...Bc4-+ 22.Rc4 Nd3 (better 22...Nb6!? 23.Rcc1 Na4-+) 23.Ra1=+ Bb4 24.Nc2 (24.Nf5=+) 24...Ba3 (better 24...c5-/+) 25.Ra3= N5b4 26.Nb4 Nb4 27.d4 f6 28.Rb3 Kf7 29.Ne1 Re7 30.Nc2 Nc2 (30...b5 31.Rc5 Rb7 A) 32.Nb4?? ba4 (worse 32...ab4 33.ab5 Rb5 34.Rb5 cb5 35.Rb4+=) 33.Rb2 ab4-+ (33...Rb4?! 34.Ra2=+); B) 32.Ra3=) 31.Rc2+= Rd7 32.Rb6 Ra7 33.Rc5 Ke8 34.Kf1 Kd8 35.Ke2 Kc7 36.Rb2 b6 37.Rc4 Rb7 38.Rbc2 Rd6 39.e4 Kd7 40.Ke3 b5 41.ab5 cb5 42.Rc5 (42.Rc8!?+=) 42...a4= 43.d5 b4 44.Ra5 a3 45.Rc1 Rdb6 46.Kd4 Rb5 47.Ra4 g5 (47...Rc7 48.Rb1=+) 48.g3 h5 49.f4 gf4 50.gf4 R5b6 51.e5 fe5 52.fe5 Ke7 (52...b3!? 53.Ra3 Rb4 54.Kd3 b2=) 53.Rg1+/- (53.Rg1 b3 54.Ra8 Rb4 55.Kc3+=) 1-0. carlos78 (2170) - Petrovich63 (2145), Rated Blitz game, lichess.org, 2015.

11.Qb3 Be6 12.Qd1=+.

11.Qb3 Nf6 12.Qb7 Ne5 13.Bd4 c5 14.Be5 Be5 (better is 14...Bf3!? 15.Bf6 Qf6 16.Qf3 Qa1=) 15.Ne5+/– Re5 16.Bg4 Ng4 17.Nc3 Re7 18.Qf3 Ne5 19.Qd5 Qc8 (19...Rc8!?+=) 20.Ne4 Nd7 21.Rfc1 (21.Nd6!? Qd8 22.d4 cd4 23.Qd4+/– (23.ed4?! Nb6 24.Qc5 Rd7+=)) 21...Re5 22.Qc4 Rb8 23.a3 Qc6 24.f3 Rc8 25.Rab1 a6 26.a4 Kf8 27.a5 h6 28.d4 Rd5 29.Rb2 f5 (29...Kg8 30.Nc5 Nc5 31.e4+– (31.dc5?! Qc5 32.Qc5 Rcc5 33.Rc5 Rc5+/–)) 30.Nf2 (better is 30.Nc5 Nc5 31.e4+– (31.dc5?! Rc5 32.Qc5 Qc5 33.Rc5 Rc5+=)) 30...f4+/– 31.Qd3 (31.Nd3 fe3 32.Nf4 Rf5 33.Ne6 Ke7 34.Nc5 Nc5+/–) 31...Re8? (31...fe3 32.Qe3 Rd4 33.Rd2 Rd2 34.Qd2+=) 32.ef4 Rd4 33.Qf5 Kg8 34.Ne4 g6 35.Qg4 Kg7 36.f5 Ne5 37.f6 Kf7 38.Qh4 h5 39.Rbc2 Nd3? 40.Rd1 Red8 41.Rcd2 Qa4?? 42.Rd3 Qb4?? (better is 42...Rd3 43.Ng5 Kf6 44.Ne4 Kf7 45.Qf6 Kg8 46.Qg6 Kf8 47.Qf6 Kg8 48.Qg5 Kh8 49.Qh5 Kg8 50.Qg6 Kf8 51.Qf6 Kg8 52.Rd3 Rd3 53.Qa6 Qd4 54.Kf1 c4 55.Qg6 Kf8 56.Qh6 Ke7 57.Qg5 Kf7+–) 1–0. Swiatek,Agata – Tekielak,Izabella, Poland–ch U12 Girls, 1998.

11.Nc3 Re6 12.Nd5 Bf3 13.Nf6 Rf6 14.Bf6 Be2 15.Bd8 Bd1 16.Bc7 Bc7 17.Rfd1 Rd8 18.d4 Rd5 19.Rab1 Bb6 20.Kf1 f5 21.Ke2 Kf7 22.h3 g5 23.g4 f4 24.h4 h5 25.Kf3 hg4 26.Kg4= fe3 27.fe3 gh4 28.Kh4 Ra5 29.Rd2 Ke6 30.Kg4 Ne7 31.Kf4 Nd5= 32.Kf3 Nc3 33.Rbb2 Rf5 34.Kg4 Rf7 35.Rb3 Ne4 36.Rc2 Nd6 37.Rh2 Nf5 38.Rh5 Bd8 39.Rd3 Rg7 40.Kf4 Bc7 41.Kf3 Rf7 42.Kg4 Rg7 43.Kf3 Rf7 44.Kg4 ½–½. Geertsema,F – Bierenbroodspot,Paul, Eindhoven, 1986.

11.Nc3 Nce7 12.Qb3 c6 13.h3 (13.Qb7? Rb8 14.Qa7 Rb2 15.Nd5 cd5-+) 13...Bf3 14.Bf3 Rb8 15.Rab1 b5 (15...Bc7 16.Nd5 Nd5 17.Bd5 cd5 18.Rfc1+=) 16.Rfc1 a5 (16...Nb4 17.d4+=) 17.Nd5 cd5 (17...Nd5 18.Rc6 Nb4 19.Rcc1+=) 18.g3 (18.Bd5? Nd5 19.Bd4 Nb4-+) 18...a4 19.Qc3 (19.Qd3 Kh8+/-) 19...f6+= 20.Qd3 Be5? (better 20...Kh8!?+=) 21.Ba3+- g6 (21...Bd6 22.Bd5 Kh8 23.Bd6 Qd6 24.Rb5 Rb5 25.Qb5 Rb8+-) 22.Rb5 Rb5 (22...Kg7 23.Rb8 Qb8 24.Qa6+-) 23.Qb5 Kg7 (23...Kf8 24.Qa6 Kf7 25.d4+- (worse 25.Qa4 Bd6+-)) 24.d4 Bb8 25.Rb1 Bc7 26.Qa4 Nf5 (26...Rf8+-) 27.Rb7 Re6 (27...Kh6 28.Qa7 Qa8 29.Rc7 Qa7 30.Ra7+-) 28.Qc2 Kh6 29.Qc7 Qc7 30.Rc7 Kg5 (30...Re8 31.Rf7 Rd8+-) 31.Bg4 h5 32.f4 (32.f4 Kh6 33.Bf8 Ng7 34.Be6 h4 35.Bg7 Kh7 36.Bf6 Kh6 37.Bg5 Kh5 38.g4) 1-0. pierre - kareh_kapalo, internet, 2009.

11.Nc3 Bf3 12.Bf3 Nf6 13.Nb5 a6 14.Nd6 Qd6 15.Qa4 Nd7 16.Ba3 Qg6 17.Rac1 White gets the initiative 17...Nb6 18.Qc2 Re6 19.d4 Qc2 20.Rc2+– Rd8 21.g3 f5 22.Rc5 g6? 23.d5+– (23.d5 Rf6 24.dc6 bc6 25.Ra5+–) 1–0. Daehne,Armin – Gichert, corr FRG–ch H786, 1975.

11.Nc3 Nf6 12.d4 Ne7 13.e4 (13.Nb5 Ne4=) 13...Bb4=+ 14.Qb3 (14.Bd3!?=+) 14...Bc3-/+ 15.Ng5? (15.Ne5 Be6 16.Qc3 Ne4 17.Qc2-/+) 15...Be2?? (better 15...Ned5 16.Bc4 Bb2 17.Qb2 Ne4 18.Ne4 Re4-+) 16.Nf7= Kf8? (better 16...Qd5! 17.ed5 Bb2+=) 17.Nd8+- Rad8 18.Bc3 (18.Qc3 Bf1 19.Rf1 Ne4 20.Qc7 Nf6+-) 18...Bf1 19.Rf1 Ne4 20.Qb7 Nc3 21.Qf3 Kg8 22.Qc3 Nd5 23.Qd2 Rd6 24.h3 h6 25.Re1 Red8 26.Qa5 a6 27.Qc5 Kh7 28.a4 Kg8 29.a5 Kh7 30.Rb1 Nf4?! (30...Kg6+-) 31.Qc7 R8d7 32.Qc2 Kh8 (32...g6+-) 33.Rb8 (33.Rb8 Rd8 34.Qc7 Rd4 35.Rd8 Rd8 36.Qd8 Kh7 37.Qd6+-) 1-0. opperwezen (2820) - esmaeili (2445), lichess.org, 2017.

11.d3 Re6 12.Qa4 (12.Nbd2 Rg6 13.Rb1 Bh3-/+) 12...Bf3 (better 12...Nf4! 13.Kh1 Nb4-+) 13.Bf3= Rh6 (13...b5 14.Qg4 (14.Qb5?? Bh2 15.Kh1 Rh6-+) 14...Ne5 15.Be5 Re5 16.d4+=) 14.g3 Nb6 15.Qg4 Rg6 16.Qh3 (16.Qh5+=) 16...Ne5 (16...Na4 17.Bc6 bc6 18.Bd4=) 17.Be2 (17.Bb7!? Nd3 18.Ba8 Qa8 19.Bd4+/-) 17...Nd5 (17...Qe7 18.Nc3=) 18.Nc3 (18.d4 Nc6=) 18...Rh6 (18...Ba3 19.Nd5 (19.Ba3 Nc3 20.Bh5 Rh6-/+) 19...Bb2 20.Rab1 Qd5 21.Rb2=) 19.Qg2+= Nf6 20.Ne4 (better 20.d4 Nc6 21.Rab1+=) 20...Nfg4? (better 20...Ne4!? 21.Qe4 Re6=) 21.h3+- Nf6 22.Nf6 gf6 23.Rac1 (worse 23.Qb7 Rb8 24.Qa7 Rb2-/+) 23...Qd7 (23...c6 24.d4 Ng6 25.Rfd1+/-) 24.h4 (24.Qb7 Rd8+-) 24...Kh8? (24...Rb8 25.d4 Ng6 26.h5+/-) 25.Be5 (better 25.Qb7!? Qe8 26.Qa6 Rb8+-) 25...fe5+/- 26.Rc4 (26.Qb7 Rg8 27.Rc4 Qe7+/-) 26...Rg8? (26...c6 27.d4=) 27.Qf3?? (27.Qb7 Rhg6+/-) 27...Rhg6 (27...b5 28.Rg4=) 28.Rb1 (28.Qb7 a6+/-) 28...e4? (better 28...b5 29.h5 bc4 30.hg6 fg6 31.Qf6 Qg7 32.Qg7 Kg7 33.dc4 e4+=) 29.Qe4+/- (worse 29.Re4 Bg3 30.h5 R6g7=) 29...Bg3 (better 29...b6!?+/-) 30.fg3+- Rg3 31.Kf1?? (31.Kf2 Qh3 32.Bf1 Qh2 33.Ke1 Qg1 34.Qd4 R8g7 35.Qd8 Rg8 36.Qf6 R3g7 37.Rb7 Qe3 38.Kd1 a5+-) 31...Qh3?? (better 31...Rg1 32.Kf2 Rb1 33.Qe5 f6 34.Qf6 Qg7 35.Qg7 Rg7-/+) 32.Ke1+- Re3 (32...Rg1 33.Kd2 Rb1 34.Qd4 Rg7 35.Qd8 Rg8 36.Qf6 Rg7 37.Rd4+-) 33.Qd4 Rg7 34.Kd2 Re8 35.Rf1 (35.Rg1 Re2 36.Ke2 Qh2 37.Kf1 Qg1 38.Qg1 Rg1 39.Kg1 c6+-) 35...Qh2 (35...Qe6 36.Bg4 Qh6 37.Rf4+-) 36.Rf2 Qg1? (better 36...Qd6+-) 37.Rf7 (37.Rc7 Qb1 38.Rg2 (38.Rcf7?! Qa2 39.Kd1 Qb1 40.Kd2 Qa2 41.Ke1 Re2 42.Re2 Qb1 43.Kd2 Qa2 44.Ke1 Qb1 45.Kd2 Qa2 46.Ke1=) 38...Qa2 39.Rc2+-) 37...Qd4-+ 38.Rd4 Rf7 39.Rg4 (39.Bg4 c5 40.Rc4 Re5-+) 39...Rfe7 (better 39...Rf2!? 40.Re4 Re4 41.de4-+) 40.Rg2 (40.Bf3 c5-+) 40...Re2! 41.Re2 Rd8?? (better 41...Re2!? 42.Ke2 Kg7-+) 42.Re4 (42.Re7 Rd4=) 42...Kg8 (42...Rd7 43.Ra4 a6 44.Rg4-/+) 43.Ke3 (43.Re7 Rc8=) 43...Kf7-/+ 44.Rf4 Ke6 45.Re4 Kd7 46.Kf4 (46.Rd4 Kc8-/+) 46...Re8 47.Rd4 Kc8 48.Rc4 Rf8 49.Ke3 Rg8 50.Kd2 (50.Rf4 Re8 51.Kd2 Re7-/+) 50...Re8 (50...Rg2 51.Ke3-/+) 51.Kc3 Re2 52.Re4? (better 52.a4-/+) 52...Re3?? (better 52...Re4 53.de4 Kd7-+) 53.Re3+- c6 54.Re4 Kc7 (54...Kd7 55.Rg4 h6 56.Rg7 Kc8 57.Rh7+-) 55.Rf4 (better 55.Re7!? Kd6 56.Rb7 a6+-) 55...Kb6 56.Rg4 c5 (56...a5 57.Rg5 h6 58.Rh5+-) 57.Rg5 Kb5 0-1. norba94 (2370) - P4L5 (2355), Rated Blitz game, lichess.org, 2016.

11.d4 Re6 12.Nbd2 Rg6 13.Bd3 f5 14.Qb3 Kh8 15.g3 (15.Qd5?? Bh2 16.Nh2 Qd5-+) 15...Nf4?? (better 15...Ndb4=) 16.ef4+- Bf4 17.d5 (17.Qb7 Rb8 18.Qb8 Qb8-/+) 17...Na5 18.Qb5 c6 19.Qb4 Qd5?? (19...Bd2 20.Nd2 Qd5+-) 20.Qf4 Qd3 (20...Kg8 21.Ne5 Bh3+-) 21.Ne5 Qd5 22.Ng6 hg6 23.Qd4 (23.Qh6! Kg8 24.Qg7) 23...Qb5 (23...Qd4 24.Bd4 b6+-) 24.Qg7 1-0. Kukel,Imre (1785) - Gyurenka,Adam, Komarom-Eszterom Regional Individual, 2014.

11.d4 Qf6 12.Nbd2 Qh6 13.Re1 Re7 14.Nf1 (14.Rc1 Nb6=) 14...Rae8=+ 15.a3 Nf6 (15...Qf6 16.Bb5=+) 16.Ng3 (16.d5 Nd8=) 16...Ne4 17.Bf1? (17.Ne4 Re4 18.h3 Bh3-+) 17...Ng3 (17...Nf2!? 18.Kf2 Re3-+) 18.hg3=+ Qh5 19.Rc1 Re6 20.Bc4?? (better 20.Qb3=+) 20...Rh6-+ 21.Kf1 Qh1 22.Ke2 Qg2 23.Kd2 Bf3 (23...Bf3 24.Re2 Be2 25.Qe2 Na5-+) 0-1. opperwezen (2850) - Last7Samurai (2595), lichess.org, 2016.

12.Nc3 Nb6 13.Qc2 Nb4 14.Qb1 Qf5 15.a3 Qh5 16.ab4?? (16.h3 Bh3 17.gh3 (17.ab4 Bg2 18.Nh4 Qh4-+) 17...Qh3 18.Rc1-/+ (18.ab4 Re6 19.Qf5 Qf5-+)) 16...Bf3-+ 17.h3 Be2 18.Ne2 (18.Ra5 c5 19.Ne2 Qe2 20.bc5-+) 18...Qe2 19.Qf5 Qc4 (19...Bb4?! 20.Bg7 Kg7 21.Qg5 Kf8 22.Qh6 Ke7 23.Qh4 f6 24.Qb4 Kf7 25.d4-+) 20.Qg5 Bf8 21.Rac1 Qd5 22.Qg4 h5 23.Qg3 c6 24.Rc5 Qd6 25.Qf3 (25.Rf5 Qg3 26.fg3 Bb4 27.Rf7 Re7 28.Re7 Be7-+) 25...Nd5 (better 25...Na4 26.Rc2 Qg6 27.d3-+) 26.Qh5 Qg6 27.Qf3 (27.Qg6 fg6 28.Rc4-+) 27...Bc5 28.bc5 f6 29.e4 (29.Rc1 Qd3 30.Qd1 a5-+) 29...Qe4 30.Qb3 Qb4 31.Qc2 (31.Qb4 Nb4 32.Kh2 Nd3-+) 31...a5 32.Bc3 Qb5 (32...Qc5 33.Qb2-+) 33.Rb1 (33.Bd4 Re2 34.Qg6 Qb4-+) 33...Qc5 34.Rb7 (34.Qb2 Nf4 35.Qb3 Kh8-+) 34...Nc3 (better 34...Re1 35.Kh2 Qf2-+) 35.dc3 Re1 36.Kh2 Qe5 37.g3 Re8 (37...Qd5 38.Rb8 Rb8 39.Qe4 Qe4 40.g4 Qf3 41.h4 Rh1) 38.Qg6 Re7 39.Rb8 (39.Rb2 a4 40.Qd3-+) 39...Re8 (better 39...Qb8 40.Qg4 Qe5-+) 40.Rb7=+ Re7 41.Re7?? (41.Rb8 Qb8 42.Qd3-+) 41...Qe7-+ 42.Qd3 Qe4 43.Qe4 Re4 44.Kg2 Rc4 45.Kf3 Rc3 46.Kf4 Rb3 47.f3 a4 48.Kf5 (48.Ke4 a3 49.Kf5 a2 50.Kg4 a1Q 51.h4 Qd1 52.Kh5 Kf7 53.Kg4 Qf3 54.Kh3 Qg3) 48...a3 49.f4 (49.g4 a2 50.g5 a1Q 51.h4 Qe5 52.Kg4 f5 53.Kh5 Rf3 54.g6 f4 55.Kg4 Rg3) 49...a2 50.g4 (50.Kg6 Rg3 51.Kf5 a1Q 52.Ke6 Qd4 53.h4 Kf8 54.h5 Qd5) 50...a1Q 51.Kg6 (51.g5 Qb1 52.Kg4 g6 53.Kh4 Qf5 54.gf6 Qf4) 51...Qa5 (51...Qe1 52.g5 Qe4 53.Kh5 Qh7 54.Kg4 Qh3) 52.f5 (52.h4 Qd5 53.g5 Rg3 54.h5 Rg5 55.fg5 Qg5) 52...Rh3 (52...Qd2 53.h4 Qh6) 53.g5 Rg3 (53...Qe5 54.gf6 Qf6) 54.Kh5 Rg5 (54...Qf5 55.Kh4 Qg5) 55.Kh4 Qb4 (55...Qe1 56.Kh3 Qg3) 56.Kh3 Rf5 (56...Qg4 57.Kh2 Rh5) 57.Kh2 (57.Kg3 Qa3 58.Kg2 Qf3 59.Kh2 Qg4 60.Kh1 Rh5) 57...Ra5 (57...Qg4 58.Kh1 Rh5) 58.Kg2 (58.Kg3 Ra3 59.Kg2 Qd2 60.Kf1 Ra1) 58...Ra3 59.Kf2 (59.Kg1 Ra2 60.Kf1 Qb1) 59...Qb2 60.Ke1 Ra1 0-1. pacalmisu (2415) - Skiller2 (2390), Rated Blitz game, lichess.org, 2016.

12.Nc3 Nb6 13.Qc2 Rad8 14.d3 (14.Nb5 Bf8 15.Nbd4 Nd4 16.Bd4 Bf5=) 14...Ne5 (14...Nb4!? 15.Qb1 Bf3 16.Bf3 Nd3-/+) 15.Ne5= Be5 16.Bg4 Qg4 17.Ne4 (better 17.Rab1!?=) 17...Bb2-/+ 18.Qb2 Rd3 19.Nc5 Rd5 20.Nb7 (20.Qc2 Rg5 21.g3 Rh5-/+) 20...Rg5 (20...Rb8 21.Qc2 Rb7 22.Qc6-+) 21.g3-/+ Qf3 22.Qb5?? (better 22.a4-/+) 22…Rb5-+ 0-1. norba94 (2385) - Nermid (2320), Rated Blitz game, lichess.org, 2016.

12.Bc3 Ne5 13.Ne5 Be2 14.Qe2 Be5 15.Qc4 Qd6 16.Be5 Re5 17.d4 Rh5 18.h3 b6 19.Rac1 c5 20.Rcd1 cd4 21.Rd4+= Qc5 22.Rfd1 g6 23.Qe2 Re8 24.Qb2 Qb5 25.Qa3 a5 26.Rd8 Rhe5 27.Qd6 Rd8 28.Qd8 Re8 ½–½. Hagstroem,Ake – Jonsson,Gunnar, corr SVE–chT div II–B, 1988.

12.Bc3 Re6 13.g3 Rh6 14.Rb1 Qd7 15.Ng5 Be2 16.Qe2 Qf5 17.f4 Re8 18.Rb5 Qc8= 19.Qc4 Nd8 20.Qd4 Bf8 21.Qa7 Ra6 22.Qd4 h6 23.Nf3 Ra2= 24.Ne5 Ra6 25.Qc4 Rd6 26.Rb2 Re5? 27.Be5+– Rc6 28.Qe2 Ne6 29.Rfb1 b6 30.Qf3 Qd7 31.Bc3 Nc5 32.Ra2 Qd3 33.Rba1 Rd6 34.Be5 Rd7+/– 35.Qg4 Ne4 36.Bd4 Rd4 37.ed4 Qd4 38.Kg2 Qf2 39.Kh1 Nd2 40.Qd1 Bb4 41.Qg1 Qe2 42.Qg2 Qe3 43.Rd1+– Nc4 44.Qe2 Qc5? 45.Rd8 Kh7 46.Qe4 f5 47.Qd5 Qd5+/– 48.Rd5 Ne3 49.Re5 Bc5 50.Re2 Ng4 51.Rf5 Kg6 52.Rc5 bc5 53.Rc2 Nf6 54.Rc5 Ne8 55.Kg2 Kf6 56.Kf3 Ke6 57.Re5 Kd7 58.h3 Nf6 59.g4 Kd6 60.Ra5 c5 61.g5 hg5 62.fg5 Nd5 63.Ke4 Nc7 64.h4 Ne6 65.Ra6 Ke7 66.Ke5 Nd4 67.Ra7 Kf8 68.Kd5 Nf3 69.Ra4 (69.Ra4 Ke7 70.Rf4+–; better is 69.g6 Nd4 70.Kc5 Nf5 71.Rf7 Ke8 72.Rf5 Kd7 73.Rf7 Ke6+–) 1–0. Agrest,Roman – Bossoni,M, III EUICC Arvier ITA, 2007.

12.Bc3 Bf3 13.Bf3 White fights for the Initiative 13...Be5 14.d4+/– Bf6 15.Rb1+– Qe7 16.Rb7 Qd7? 17.Qa4 a5 18.Bc6 Qf5 19.Be8 (19.Be8 Qe6 20.Bc6+–) 1–0. Bonetti,Shane – kempelen, ICC, 2002.

12.Ne5 Be2 13.Nc6 Nc3 14.Nd8 Bd1? 15.Bc3 Be2 16.Nb7 +–.

12.Ne5 Be2 13.Nc6 Nc3 14.Nd8 Nd1 15.Rfd1 Rad8 –/+.

12.Ne5 Be2 13.Ne2 Ne5= 14.Be5 Re5 15.d4 Rg5 16.Ng3 Qe7 17.Rb1 Nc3 18.Qf3 Nb1 19.Qb7 Qd8 20.Rb1 a6 21.Ne4 Rb5 22.Rb5 ab5 23.Nc3 Rb8 24.Qe4 c6 25.g3 (25.Qc6? Rc8 26.Qb5 Rc3–+) 25...b4 26.Ne2 c5 27.Qc2 cd4 28.Nd4 Qd7 29.Qb3 Qb7 30.Nc2 Rc8 31.Qb4 Qb4 32.Nb4 Rc4 33.Nd3 Ra4 34.Nc1 Ra3 35.Kf1 f5 36.h4 Kf7 37.Ke2 Ke6 38.Kf3 Ke5 39.Ke2 h6 40.f3 g5 41.hg5 hg5 42.Nd3 Kd6 43.Nc1 Kd5 44.Kd2 g4 45.Ke2 Kc4 46.fg4 fg4 47.Kd2 Kd5 48.Ke2 Ke4 49.Kf2? (better is 49.Nb3!?–/+) 49...Re3 50.Nb3 Rc3 51.Nd2 Kd3 52.Nf1 (52.Nb3–+) 52...Rc2 53.Kg1 Ra2 54.Nh2 Ra4 (better is 54...Rh2 55.Kh2 Kd4 56.Kg1–+) 55.Kf2 Kd2 (better is 55...Rb4 56.Ng4 Rg4 57.Kf3–+) 56.Nf1 Kd3?? 57.Nh2 Ra2 58.Kg1 Ke2 59.Ng4–/+ Kf3 60.Nh2 Kg3 61.Nf1 Kh3 62.Kh1 Re2 63.Kg1 Rg2 64.Kh1 Rg8 65.Nh2?? Kg3–+ 66.Kg1 Rg7 67.Nf1 Kf3 68.Kh1 Kf2 (69.Ng3 Rh7 70.Nh5 Rh5) 0–1. hal1958 – Walter_Vieira, HCL–A1261 playchess.de, 2003.

12.Na3 Nb6 13.Nb5= Bf8 (13...Bf3 14.Bf3 Nc4 15.Bc3=) 14.d4 (14.d3 Qd7=) 14...a6 15.Nc3 Qf6 16.Rc1 (16.d5 Bf3 17.Bf3 Nc4 18.dc6 Nb2+/-) 16...Rad8 (16...Bd6 17.d5 Ne5 18.Nd4=+) 17.Qb3 (17.Na4 Nd5=+) 17...Na5 18.Qc2 Bg6 19.e4 Nac4 20.Bd3 (20.Rfd1 Be7=) 20...Bh5 (20...c5 21.dc5 Rd3 22.Qd3 Nb2 23.Qe3-+) 21.e5 (21.Bc4!? Nc4 22.Nd5=+) 21...Qh6=+ 22.g4 Bg6 23.Bg6 hg6 (23...fg6 24.Kg2 c6 25.Qb3=) 24.Kg2 c5 (24...Bb4 25.Na4 Na4 26.Qa4 Nb2 27.Qb4=+) 25.dc5 (25.Ne4 cd4 26.Bd4 Qf4=) 25...Bc5=+ 26.Ne4 Bf8 (26...Be3 27.Rcd1 g5 28.Nd6 Nd6 29.ed6=+) 27.Bd4 (27.g5 Qh5=) 27...Qf4 28.Bb6 Nb6 29.Ng3 Nd5 30.Rfe1 (30.Ne2 Qh6=) 30...Qb4 (30...Qh6!?-/+) 31.Rb1 (31.Re4 Qe7=) 31...Qe7=+ 32.Qb3? (better 32.Qc1=+) 32...Nf4-+ 33.Kh2 (better 33.Kf1 Rd3 34.Qb7 Qb7 35.Rb7 Rf3 36.Rc7-+) 33...Rd3 34.Re3 (34.Qb7 Qb7 35.Rb7 Rf3 36.Kg1-+) 34...Rb3 35.Reb3 b5 36.Ne4 Ne6 (36...Rd8 37.a4 ba4 38.Rb7-+) 37.Nd6 (37.Rd1 g5-+) 37...Rd8 38.a4 (38.Rd1 Ng5 39.Rd5 Ne4-+) 38...Rd6 (better 38...Nd4! 39.Nd4 Qe5 40.Kg1 Rd6 41.Nb5 ab5 42.Re3-+) 39.ed6 Qd6 40.Kg1 (40.Kg2 Nf4 41.Kg3 Nd3 42.Kg2 ba4-+) 40...ba4 (better 40...Nc5 41.Re3 Na4 42.Kf1-+) 41.Rb6 (41.Re3 Nf4 42.h4 a3-+) 41...Qd5 (41...Qd3 42.Kg2-+) 42.Ne1 (42.Nh4 Nf4 43.Kh2 g5-+) 42...a3 (better 42...Nf4 43.h4 Ne2 44.Kh2-+) 43.Ra6 Qd3 (better 43...Nf4 44.Ra4 Nh3 45.Kf1 Qa2-+) 44.Nd3+- Nd4 (44...Ng5 45.Kg2 Kh7 46.Rb8+-) 45.Ra1 (45.Rb8 Nf3 46.Kg2 Nh4 47.Kg3 g5+-) 45...Ne2 (45...Nf3 46.Kf1 g5+-) 46.Kf1 Nc3 47.R1a3 (better 47.Ra8 Nb5+-) 47...Ba3 48.Ra3 Ne4 (48...Nb1 49.Ra7+-) 49.f3 (49.Ne5 f6 50.Ng6 Kh7 51.Nf8 Kg8+-) 49...Nd6 50.Ke2 (50.Ne5 f6 51.Ng6 Nb5+-) 50...f6 (50...g5 51.Ra5 f6 52.Rd5+-) 51.Ra7 Nb5 52.Rb7 Nd6 53.Rd7 Nc4 54.Kf2 (54.Nc5 Ne5 55.Rd8 Kh7+-) 54...Kf8 (54...g5 55.Ke2+-) 55.Kg3 (55.Nc5 Ne5 56.Ne6 Ke8 57.Rg7 g5+-) 55...Ke8 (55...Kg8 56.Rc7 Nd2 57.Nf4+-) 56.Rg7 g5 57.h4 (better 57.Nc5!? Ne5+-) 57...gh4 58.Kh4 Kf8 59.Kh5 (better 59.Rc7 Ne3 60.Nc5+-) 59...Kg7+/- 60.g5 f5 (60...Ne3 61.g6+-) 61.f4 Ne3 62.g6 Kf6? (better 62...Nc2+-) 63.Kh6 Nd5 64.g7 Ne7 0-1. Fredek (2090) - High Noon (2320), Freundschaftspartie, 5m + 0s, 2005.

12.Na3 Qe7 13.Nc4=+.

12.Nc3 Nc3 13.Bc3 Qd7=+.

12.Nc3 Nc3 13.Bc3 Ne5 (13...Rb8 14.d4=) 14.Ne5 Be2 15.Qe2 Be5 16.Be5 Re5 ½-½. Novikov,Konstantin Ivan (2215) - Chubakov,Oleg (2125), Tula Sinitsin mem, 2007.

12.Nd4 Be2 13.Ne2 Qg5 14.Nbc3 Re6 (14...Rad8 15.f4 Qh5 16.Nd4 Qd1 17.Rad1 Nc3 18.Bc3 Nd4 19.Bd4=+) 15.Nd5 (15.f4 Nc3 16.Bc3 Qh4=) 15...Qd5=+ 16.Nc3 Qe5 The mate threat is Qh2 17.Qb3?? (better 17.f4 Qf5 18.Qb1=) 17…Qh2 0-1. retiponziani (1870) - theredflash06 (2060), ChessWorld.net, 2012.

11.Na3 Rad8 12.Rc1 Qe7 13.Nc2 Nf4 14.Nb4 Qb4 15.Bc3 Qe4 (15...Ne2 16.Qe2 Qa4 17.d4=+) 16.h3 (16.ef4 Qe2 17.Qe2 Re2=) 16...Ne2=+ 17.Qe2 Bf3 18.Qf3 Qf3 19.gf3 Ne7 20.Bd4 Nc6 21.Bc3 Ne7 22.d4 f5 23.Ba5 (23.Rfe1 Ng6=) 23...b6=+ 24.Bb4 Nd5 25.Ba3 Re6 26.Kh2 Kf7 27.Rc2 Rd7 28.Rfc1 a5 (28...b5 29.Rb2 c6 30.Bb4=+) 29.Rc6= Rc6 30.Rc6 b5 31.Rc5 b4 32.Bb2 a4 33.Rc4 (33.e4 Nc3 34.Rf5 Ke8 35.Bc3 bc3+=) 33...b3 (33...g5!?=) 34.Ra4+= Nb6 (34...f4!?+=) 35.Ra3+/- ba2 36.Ra2 Ke6 37.Kg3 g5 (37...Nc4 38.Bc3+/-) 38.e4+- c6? (better 38...Nc4 39.d5 Kf7+-) 39.Ra6 Rb7 40.d5! Kd6 (40...cd5 41.Bd4 Combination) 41.dc6 Kc6 42.Bd4 h5 (42...Rd7 43.Rb6 Kc7 44.Rb4 fe4 45.fe4+-) 43.ef5 Kd5 1-0. Sitnikov,A (2455) - Remizov,Yaroslav (2305), Kibizov Memorial B, 2018.

11.Qb3 Nf4 12.Bc4 Bf3 13.gf3 Nh3 14.Kh1=+.

11.Qb3 Qf5 12.Nc3 (12.h3 Bh3 13.gh3 Nf4 14.ef4 Re2+=) 12...Nc3 (12...Bc3 13.Bc3 Rab8 14.h3=) 13.Bc3 (13.dc3 Bd6 14.Qb7 Qe4+=) 13...Bc3 14.Qc3 Qh5 (14...Qg6 15.Rab1 Rab8 16.Rb5=) 15.d4 (15.Rfb1 Rab8+=) 15...Rac8 (15...Qg6 16.Rab1 Rab8 17.Rfc1=) 16.Rab1 Rb8 17.Rb5 Qh6 18.Rc1 (18.Rfb1 b6+=) 18...a6 19.Rc5 Kh8 (19...Ne7 20.Qb3 Bf3 21.Bf3+=) 20.Bd1 (20.Ng5!? Bh5 21.Bh5 Qh5+-) 20...Kg8+/- 21.d5 (21.Qb3 Qg6+=) 21...Bf3 22.dc6?? (22.Bf3 Ne5 23.Be2+= (worse 23.Rc7 Nf3 24.gf3 Qg5 25.Kf1 Qd5=+)) 22...Bc6-/+ 23.Be2 (23.Bc2 Qh4-/+) 23...Qg6 24.Bf1 h5 (24...Red8 25.Qe5 Rd6 26.Qe7-/+) 25.Qd4 Rbd8 (25...Re4 26.Qd3-/+) 26.Qf4 (26.Qh4 Qg4 27.Qg4 hg4 28.Ba6 Rd2=+) 26...Rd7 (26...Rd2 27.Qc7 Qf6 28.f3=+) 27.f3 (27.Qh4 Re4 28.Qh3 Qg4 29.Qg4 Rg4 30.Rh5 Ra4-/+) 27...h4 28.e4 h3 29.g3 Red8 (29...Qd6 30.Qd6 Rd6 31.Bh3=+) 30.Bh3 (30.Qh4 Rd1 31.Rd1 Rd1=) 30...Rd2=+ 31.R5c2 (31.Qc7 Qh6 32.Rc6 Qe3 33.Kh1 Qf3 34.Kg1 Qf2 35.Kh1 Qh2) 31...Rd1 (31...Qd6 32.Qd6 R8d6 33.Kf1=+) 32.Rd1 (32.Rd1 Rd1 33.Kf2=). Fredek (2090) - Freejazz (1610), Freundschaftspartie, 5m + 0s, 2005.

11.Qc2 Rad8 12.d4 Bd6 13.a3 h6 14.Nbd2 Nce7 15.Nc4 Ng6 16.Nd6 cd6 17.Qd2 Qf5 18.Rac1 Re7 19.Rc2 Nf6 20.Bd3 Ne4 21.Be4 Qe4 (worse 21...Re4 22.Ne1 Re7 23.f3+/-) 22.Ne1 Bd7 23.Nf3 Bc6 24.Ne1 Nh4 25.f3 (better 25.Qc3!? Nf5 26.Qd2=+) 25...Qe3-/+ 26.Qe3 Re3 27.Kf2 Rde8 28.Rd2?? (better 28.Bc1 R3e6 29.g4-+) 28...Bb5 29.Rg1 Nf5 30.g4 (30.Nd3 Bd3 31.Rgd1-+) 30...Re2 31.Re2 Re2 (31...Re2 32.Kf1 Ne3) 0-1. Holz auf der Heide,Gerhard (1865) - Seifert,Volker (2360), Leipzig VfB op, 2009.

11.Qc2 Bh5 12.a3 Ba5 13.Nc3 Nc3 14.Bc3 Bc3 15.Qc3 Rad8 16.d4 h6 17.Rab1 b6 (17...Qc8+=) 18.Bb5?? (18.Rbc1 Bf3 19.Bf3+- (worse 19.gf3 Nd4 20.Qd4 Qd4 21.ed4 Re2=+)) 18...Re6?? (better 18...Bf3 19.gf3 Re6=+) 19.Rbc1 (better 19.Ne5 Qc8 20.Nc6+-) 19...Bf3-+ 20.gf3 (20.Qd3 Re5! 21.Bc6 (worse 21.de5 Qg4 22.Qg6 fg6 23.g3 Qh3 24.Bc4 Kf8 25.Rfd1 Qg2) 21...Bc6 22.Rfe1-+) 20...Rg6 21.Kh1 Qh3 22.Bc6 (22.Rg1 Qf3 23.Rg2 Qg2) 22…Qg2 0-1. gameoverbro (2425) - dfsal (2310), Rated Blitz game, lichess.org, 2016.

11.Nc3 Rad8 12.Rc1 h6 13.d4 Nb6 14.a3 Bd6 15.Nb5 Bf8 16.Nc3 Bf5 17.Na4 Qd5 18.Nc5 Bc5 19.Rc5 Qc5 20.dc5 Rd1 21.Rd1 Nd7 22.h3 Nf8 23.Nd4 Nd4 24.Bd4 Bc2 25.Rd2 Be4 26.Bb5 c6 27.Bc4 Ne6 28.Be6 Re6 29.f3 ½–½. Fels,Bernhard (2020) – Johansen,Svein (2090), WC–2009–F–00007, 2009.

11.d4 Nf6 12.Nc3 a6 13.Qd3 Bf5 14.Qd1 Na7 15.Qb3 a5 16.a4 Be6 17.Qc2 Qd6 18.Na2 Ba2 19.Ra2 c6 20.Bd3 g6 21.Ne5 b5 22.f4 Nd5 23.Rf3 Rac8 24.Rg3 Be1 25.Ra1?? (25.Ra1 Bg3 26.hg3 Ne3 27.Qf2–+; better is 25.Rf3=). Rosner,Dirk – Baaske, corr DDR–ch I752, 1988.

11.Re1 Rad8 12.a3 Ba5 13.Qc2 Bf5 14.Qc1 Nb6 (14...a6 15.Nc3=+) 15.Nc3 (15.Bb5 Be4 16.Nd4 Qd5 17.Bc6 bc6=+) 15...Bd3=+ 16.Rd1 Ne5 17.Ne5 Re5 18.Bd3 Qd3 19.Ne2 Re7 (better 19...Rg5!? 20.Nf4 Qd6=) 20.Qc5+/- Rd6 21.Nf4 (21.Nd4!? Na4 22.Qa5 Nb2 23.Qa7+-) 21...Qa6+= 22.Bd4 Nd7 23.Qf5 Bb6 (23...c5 24.Bb2= (worse 24.Bc5 Re5 25.Qe5 Ne5 26.Bd6 Qd6-+)) 24.Bb2 (24.Nd5 Re8 25.Bb6 Re5+/-) 24...Qa5+= 25.Qa5 Ba5 26.d4 Nf6 27.a4 Bb4 28.Nd3 a5 29.Rdc1 Ne4 (29...b6 30.Ne5=) 30.Rc2 (30.Nb4 ab4 31.Rc4 Rb6+/-) 30...Rb6 (30...h6 31.Rac1 Rdd7 32.Ne5+/- (worse 32.Nb4 ab4 33.Rc4 c5+=)) 31.Rac1 Bd6 32.f3 Nf6 (32...Rb3 33.Rd1 Ng5 34.e4+=) 33.e4+/- Ne8 34.e5 Bb4 35.d5 Rd7 36.d6 (36.Nf4 g5 37.e6 fe6 38.Ne6 Rbd6 39.Nc7 Nc7 40.Rc7 Rd5=) 36...cd6= 37.Rc8 Kf8 38.Nb4 ab4 (38...de5 39.Be5 ab4 40.Bg7 Kg7 41.Re8=+) 39.ed6 (better 39.Bd4!? Rc6 40.R1c6 bc6 41.ed6+/-) 39...Rbd6= 40.Rb8?? (better 40.Re1 Re6 41.Re6 fe6 42.Kf1=+) 40...Rd1-+ 41.Kf2 R1d2 42.Kg3 Rb2 43.Re1 Re7 44.Re7 Ke7 45.Rb7 Ke6 46.a5 Nf6 47.a6 Nd5 48.a7 Ra2 49.f4 g6 50.Kf3 f5 51.Rh7 (51.g3 Kd6 52.Rh7 Ne7-+) 51...Ne7 52.Rh8 Ra7 53.Rb8 Nc6 54.Rb6 (54.Re8 Kd5-+) 54…Kd5 0-1. Morriss,Pete - Lebel,Patrick (2145), 22nd Ecuadorian Club Cup, 2006.

12.Qa4 Bb6 13.Bb5 Bf3 14.gf3=.

12.Qa4 Bb6 13.d3?? Nd4 (13...Ne3 14.Nc3 Nf1 15.Rf1-+) 14.Qd1?? (better 14.Bd1 Nf3 15.gf3=+) 14...Ne2 15.Qe2 Nf4! 16.Qc2 (16.ef4 Re2 Pinning (16...Re2 Deflection)) 16...Qd3 17.Qc1?? (better 17.Qd3 Nd3 18.Bc3-+) 17...Ne2 18.Kh1 Nc1 19.Rc1 Bf3 0-1. norba94 (2375) - KillerBateman (2515), Rated Blitz game, lichess.org, 2016.

12.Qa4 Rad8 13.h3 Bh5 14.Qh4 (14.Rc1 Bb6 15.Qh4 Bg6=) 14...Bg6=+ 15.d3 (15.Bb5 Qd6=+) 15...f6 (15...Qd6 16.g3=+) 16.Nbd2= Nde7 (16...Qe6 17.d4=) 17.Ne4 Nf5 18.Qg4 Qe7 19.Nh4 (19.Qf4 Ne5 20.Rfc1 c6= (20...Nd3? 21.Bd3 Rd3 22.Nf6 gf6 23.Qc4 Qf7 24.Qd3+-)) 19...Nh4 20.Qh4 Be4 21.de4 Qe4 22.Qh5 (better 22.Qe4 Re4 23.Rfd1=+) 22...Rd5 (22...Ne5 23.Be5 Re5 24.Qf3=+) 23.Qf3 (better 23.Bc4! Red8 24.Qe2+/-) 23...Qf3 24.Bf3 Rd2 25.Rab1 Bb6 26.Rfc1 Ne5 (26...Re6 27.Kf1=+) 27.Bb7 Nd3 28.Bc3 (28.Rd1!? Rd1 29.Rd1 Nb2 30.Rd2=) 28...Rf2-/+ 29.Rd1? (better 29.Bd4 Nc1 30.Kf2 Nd3 31.Kf3=+) 29...Be3?? (better 29...Re3 30.Kh2 Nf4-+) 30.Rd3= Rb2 31.Re3 Rb1 (31...Re3 32.Bd5 Double attack (32.Bd5 Decoy)) 32.Kf2 Re3 (worse 32...Rb7 33.Re8 Kf7 34.Re4+-) 33.Bd5 Kh8 (33...Kf8 34.Ke3 c5 35.a4=) 34.Ke3 Rc1 (34...c5 35.Kd2=) 35.Kd2 Rf1 36.Bf3 Rf2 37.Ke3 (37.Kd3 Ra2 38.Bb4 f5+=) 37...Ra2= 38.Bb4 a5 39.Bc5 Rb2 40.Bd5 (40.Be4 h5=) 40...Rb5 41.Kd4 Rb2 42.Bf3 Rb1 43.Be7 (43.Kd5 Rc1+/-) 43...h6 44.Be4 Rd1 45.Ke3 Re1 46.Kd4?? (better 46.Kf4=) 46...f5!-+ 47.Bf5 Re7 48.Be4 (48.Bd3 g5-+) 48...c5! 49.Kd3 (49.Kc5 Re4 Deflection) 49...Rb7 (better 49...c4 50.Kd4 c3-+) 50.Bb7+- g5 51.Be4 Kg7 52.Ke3 (52.Kc4!? Kf6+-) 52...Kf6 (52...g4 53.hg4 Kf6 54.Bf3+-) 53.Kf3 (better 53.Bf3+-) 53...Ke5 54.Bd3 Kd4 55.Bb5 (55.Bg6 Kc3 56.Bf7 a4+-) 55...c4 (55...Kc3 56.Ke4+-) 56.Ke2 (56.Kg4 Kc3 57.Kh5 Kb3 58.Bc4 Ka3 59.Kh6 Kb4+-) 56...Kc3 57.Kd1 Kb3 58.Kc1 (better 58.a4+-) 58...c3? (58...a4 59.g4+/-) 59.Bd3?? (59.a4!? h5+-) 59...Ka3? (59...h5 60.g3 h4 61.gh4 gh4 62.Bb5 Ka3 63.Bc4+/-) 60.Bc2 (better 60.Kc2 Kb4 61.g4+-) 60...Kb4+= 61.Bd1 a4 (61...Kc4 62.Kc2 Kb4 63.Bh5+-) 62.Kb1 Kc4?? (62...Ka3 63.Bh5 Kb4 64.Kc2+-) 63.Kc1?? (63.Ba4 Kd3+-) 63...Kd4?? (63...a3 64.Bg4 Kd5=) 64.Kc2?? (64.Ba4 Kd3+-) 64...Ke3?? (better 64...a3 65.Kb3 Kd3-/+) 65.Be2 (65.Kc3 Kf2 66.Bf3 Kg3+-) 65...Kf2 (better 65...Ke2 66.Kc3 Kf2-+) 66.Bf3+- Kg3 67.Be4 (67.Kc3 h5 68.Kb4+- (68.Bh5?! Kg2 69.Bg4 a3=)) 67...h5?? (better 67...g4+=) 68.Bd5 (68.Kc3?! g4 69.Bf5 Kg2 70.Bg4 a3=) 1-0. pacalmisu (2410) - KillerBateman (2530), Rated Blitz game, lichess.org, 2016.

12.Qb3 Bb6 13.Nc3 Rad8 14.Nd5 Qd5 15.Qc3 Nd4 16.Nd4 Bd4 17.Qd4 Qd4 18.Bd4 Be2 19.Rfc1 c6 20.Rab1 Ba6 21.a4 Rd5 22.f3 Red8 23.Rb2 h5 24.Kf2 g5 25.Ke1 Ra5 26.Rb4 Ra8 27.h4 gh4 28.Bc3 Rg5 29.Kf2 h3 30.gh3 Kh7 31.Rf4 Kg6 32.Bf6 Time forfeit 1-0. carlos78 (2205) - Metalhead_666 (2235), Rated Blitz game, lichess.org, 2015.

12.Nc3 Nc3 13.Bc3 Bc3 14.dc3 Qe7 =.

13.Qc2 Bf5 (13...Qf5 14.Bd3 Qh5 15.Nbd2 Bd2 16.Nd2 Be2 17.Be2 Qe2 18.Rae1 Qh5 19.Ne4 Qg6 20.f3) 14.Bd3 (14.Qb3 Bb6 15.Nc3 Nd4 16.Nd4 Bd4 17.Nd5 Bb2 18.Rad1 Be6 19.Bc4 c6 20.Nf6) 14...Bd3 15.Qd3 Qg4 (15...Re6 16.Nc3 Bc3 17.Bc3 Rg6 18.Nh4 Rg4 19.Rfb1 Rh4 20.Rb7) 16.Nbd2 (16.h3 Qe4 17.Qb5 a6 18.Qb3 Qe6 19.Nbd2 Bd2 20.Nd2) 16...Bd2 17.Nd2 (17.h3 Qh5 18.Nd2 Rd6 19.Ne4 Rg6 20.Kh1) 17...Ne5 (17...Re6 18.Rab1=+ (18.g3 f5 19.Rab1 a6 20.Rfe1) 18...a6 19.Bc3 Qg6 20.Qg6) 18.Qb3 Ng6 (18...Nc6 19.Qd3 Re6 20.h3) 19.Nf3 (19.h3 Qd7= 20.Rab1) 19...Re6=+ 20.h3 (20.Qb7? Rb6 21.Qa7 Rb2-+) 20...Qh5 21.Rac1 (21.Rab1 b6=+) 21...Rb6 22.Qc2 c6 (22...Nh4 23.Nh4 Qh4 24.Bc3=+) 23.Rb1 Rd6 24.Ba1 (24.Qc5 Rf6 25.Kh2 Rf3 26.gf3 Qf3-+) 24...Rf6 (24...Nh4 25.Nh4 Qh4 26.Bc3=) 25.Qe4 Re6 26.Qc2 Nf6 (26...f6 27.Qa4 Ra6 28.Qb3=) 27.Rb6 ab6 28.Rb1 (28.Qa4 Qa5 29.Qa5 ba5=) 28...Nd7 (28...Nd5 29.Qa4 Re8 30.Qa7=) 29.Kh2 (29.Qa4 Ngf8+=) 29...Qd5 30.Kg1 h6 (30...Qh5 31.Qa4+=) 31.a4 f5 32.Qb2 (32.Bc3 Kf7=) 32...f4 33.e4 (better 33.Re1=) 33...Re4-/+ (33...Qe4?! 34.d5 Rf6 35.Qa2=) 34.Ne5 (34.Qc2 Ne7-/+) 34...Nh4 (34...Nge5!? 35.de5 Re5 36.Kh2-+) 35.f3 Re3 36.Nd7 (36.Qc2 Ne5 37.de5 Rd3-+) 36...Qd7 37.d5 cd5 38.Qf2 (better 38.Rc1-+) 38...Qe7 39.Rd1 (39.Kh1 Re2 40.Bf6 Rf2 (40...gf6?! 41.Qh4 Qg7 42.Qg4-/+; worse 40...Qf6 41.Qe2 Qg6 42.Rb2+/-) 41.Be7 g5-+) 39...Re2 40.Qf1 (40.Bf6 Rf2 41.Be7 Rg2 42.Kf1-+) 40...Rg2 41.Qg2 Ng2 42.Rd5 Ne3 43.Bd4 Nd5 (43...Nd5 44.Kf1 Qb4 45.Bb6 Qb6 46.a5 Ne3 47.Ke2 Qd4 48.h4 Qd1 49.Kf2 Qf1) 0-1. Medves,Adriano - De Vita,Gianni (2090), Condino ITA, 2011.

13.Nbd2 Nb6 14.Rc1 Be6 (14...Bd2 15.Qd2 (worse 15.Nd2 Be2 16.Qe2 Nd4 17.Bd4 Qd4-/+) 15...a6 16.Rfd1=) 15.Bb5+= a6 (better 15...Bd2!? 16.Qd2 Bd5+/-) 16.Ne5+/- Qd6 17.Nc6 Bd2 18.Qd2 bc6 19.Rc6 (better 19.Bd3!?+-) 19...Qd5+= 20.Rb6 ab5 21.Ra6 Qg5 22.f4 Qf5 23.Rf3 (23.a4 ba4 24.Ra4 Qe4+=) 23...Bc4 (23...c5 24.a4=) 24.Ra5 (24.a4 Qb1 25.Qc1 Qc1 26.Bc1 b4+=) 24...Qb1 (24...Ra8 25.Ra8 Ra8 26.Qc1=) 25.Qc1+= Qd3 26.h3 (26.f5 Rd6+=) 26...Re6 (26...Bd5 27.Rg3=) 27.Bc3 (27.a4 Bd5 28.f5 Rc6=+) 27...Rg6 (27...Bd5 28.Qd2 Qd2 29.Bd2 Bf3 30.gf3=+) 28.Qd2 (28.f5 Rb6 29.Qd2 Qe4+/-) 28...Qf5 29.Qf2 (29.a4 c6 30.Kh2 Bd5+=) 29...h5 (29...Qb1 30.Kh2=) 30.Rg3 (30.a4 Qd3 31.Be1 ba4 32.Rh5 Qe2+=) 30...Rdd6 (30...Rg3 31.Qg3 Qd3 32.Qe1+=) 31.Ra8 (31.a4 Qd3 32.Be1 Rg3 33.Qg3 ba4 34.Ra8 Kh7 35.Ra4 Bd5=+) 31...Kh7+= 32.Rg5 (32.Re8 Rg3 33.Qg3 Qd3+=) 32...Rg5= 33.fg5 Qg5 34.Qf4 (34.Re8 Re6 35.Re6 Be6=) 34...Qg6 (34...Qf4 35.ef4 Bd5 36.Re8=+) 35.Kh2?? (better 35.Re8=) 35…Bd5-+ (35...Bd5 36.Qf2 Ba8-+) 0-1. Slobodjanac,Sinisa - Blazeka,Mihaela, Bosnjaci Open, 2018.

13.Nbd2 Bc3 14.Qc1 (14.Qc2 Bf5 15.Qc1 Bd2 16.Qd2 Qd6=) 14...Nf4=+ 15.Bd1 Bd2 16.Nd2 (16.Qd2 Ng2 17.Qc3 Bf3 18.Bf3 Nh4–+) 16...Bd1 (16...Ne2 17.Be2 Be2 18.Re1=) 17.Qd1 Ne6 18.Qh5 Ne7 19.Nf3 Nd5 20.Rfc1 (20.Ne5 Qe7=) 20...Nf6 (20...Qe7 21.Rab1=) 21.Qa5 (21.Qh4 Qd5=) 21...Qd5 (21...a6 22.Qf5=) 22.Qd5 (22.Qa7?? Ra8 23.Qa8 Ra8–+) 22...Rd5 23.Rab1 Re7 (23...Ne4 24.Ba1 b6 25.Ne5=) 24.Nd2 (24.Bc3 b6=) 24...c6 25.Nb3 Rb5 (25...h5 26.f3=) 26.Bc3 h6 27.a4 Rd5 28.Bb4 Re8 29.Rc2 (29.a5 Rc8+=) 29...Kh7 (29...Nd7 30.Kf1=) 30.f3 (30.Nc5 Nc5 31.Bc5 b6+=) 30...Rd7= 31.Bd2 (31.Bc5 b6 (< 31...Nc5 32.Nc5 Rde7 33.Rb7+/–) 32.Ba3 Nd5=) 31...Nd5 (31...Red8 32.Kf2=) 32.Na5 (32.e4 Nf6+=) 32...Nb6 33.Nb7 Rb7 34.a5 Reb8 35.ab6 Rb6 36.Rbc1 Rb2 37.Kf2 Kg6 38.Ke2 Rc2 39.Rc2 Rb6 40.Ra2 a6 41.Kd3 Kf6 (41...Rb3 42.Kc4 Rb6 43.e4+/–) 42.Kc4 (42.Ba5 Rb5+/–) 42...g5 43.g4 (43.Bb4 h5+/–) 43...Kg6 44.e4 h5 (44...f6 45.Be3 Nc7 46.Kc5+/–) 45.d5 cd5 46.ed5 Nc7 47.Ba5 Rb7 48.gh5 Kh5 49.Bc7 Rc7 50.Kd4 Ra7 51.d6 Kg6 (better is 51...a5+/–) 52.Kc5 f6 (52...Ra8 53.d7 Kf5 54.Ra6+–) 53.Kc6 Kf7 (53...Ra8 54.d7+–) 54.d7 Ke7 (54...Ra8+–) 55.Re2 1–0. Mehlhorn,U – Wolff,R, BFH–071, 2000.

13.Nbd2 Nc3 14.Bc3 Bc3 15.Rb1 Qc8 16.Qc2 Bd4 17.Bd3 Bb6 18.Bh7 Kh8 19.Be4 Ne5 20.Ne5 Re5 21.Nc4 Rc5 22.Qa4 Be6 (22...f5!? 23.Bc2 Qd7+=) 23.Nb6+/- cb6 (23...ab6!? 24.Bb7 Qd7 25.Qh4 Kg8+/-) 24.Qa7+- Bd5 25.Bd5 Rdd5 26.Qb6 Rg5? (26...Rd7+-) 27.Qb7 Qh3 28.Rfd1 Rcf5 (28...Kh7 29.Rd4+-) 29.Qe4 (better 29.Rd8 Kh7 30.Qa8 Kg6 31.Rb6 f6+-) 29...g6 (29...Kh7+-) 30.Rb8 Kg7 31.f4 (better 31.Rdd8 Rg2 32.Qg2 Qg2 33.Kg2 Rg5 34.Kf3 Rf5 35.Ke2 Rc5+-) 31...Rg2 32.Qg2 Qe3 33.Qf2 Qe6 (33...Qf4 34.Qf4 Rf4 35.Ra8+-) 34.Re1 Qd7 35.Rb4 Rd5 36.Rbe4 Rd2 37.R4e2 Rd3 38.f5! gf5 (38...Qf5 39.Qf5 Combination; 38...gf5 39.Qg2 Decoy) 39.Re3 Rd4 40.Rg3 Kf6 (40...Kh8 41.h3 Kh7 42.Rf1+-) 41.Qe3 (better 41.Qb2 Qa7 42.Rd3+-) 41...Re4 42.Qg5 Ke6 43.Re4 (better 43.Rge3!? Qd4+-) 43...fe4 44.Qg4 f5 45.Qg8 (45.Qg8 Ke5 46.Qh8 Ke6 47.Rg6 Kd5 48.Qc3+-) 1-0. Shorokhov,Mikhail (2105) - Ivanov,Victor L (2490), Anapa op, 2009.

13.Nbd2 Qe7 14.Nc4 =.

12.Nc3 Nb6 13.Nb5 Be7 14.h3 (14.Ne5 Ne5 (14...Be2 15.Qe2 Ne5 16.Be5 Nd5 17.Nc3 Nc3 18.Bc3 Rab8) 15.Be5 Bd6 16.Bd6 cd6 17.Bg4 Qb5 18.Rb1 Qd3) 14...Bh5 (14...Bf5 15.Nfd4 Bg6 16.Rc1 Nd4 17.Nd4 Nd5 18.Qb3 c6; 14...Bf3 15.Bf3 Nc4 16.Qc2 N6e5 17.Be5 Ne5 18.Be2 c6) 15.Qc2 Bg6 16.d3 a6 (16...Nd5 17.Nc3 Rad8 18.Ne4 h6) 17.Nbd4 Bf6 (17...Nd4 18.Bd4 c5 19.Bb2=; 17...Nd5 18.Rab1 Rab8) 18.Rab1 Nd4 19.Nd4 (19.Bd4 Rac8 20.Bf6 gf6 21.Nd4+/–) 19...Na4? (better is 19...c5!? is the best option Black has 20.Bg4 Qd8=) 20.Bg4+/– Bd3? (better is 20...Qd5 21.Qa4 Bd3+/–) 21.Qd3+– (21.Bd7?! Bc2 22.Nc2 Nb2 23.Be8 Re8+–) 21...Nb2 22.Rb2 Qd8 23.Rb7 c5 24.Rd7 Qa5 25.Nc6+– 1–0. Buczinski,Henryk (2180) – Ensor,Tyler (2100), DE5A/pr13, 2011.

12.Nc3 Qe6 13.Nd5 Qd5 14.d3 =+.

12.d4 Rad8 13.Nbd2 Nf6 14.Rc1 Ne7 15.Nc4 Ng6 16.Nd6 Qd6 17.Re1 Ne4 18.d5 Qb6 19.Qd4 Qd4 20.Nd4 Be2 21.Re2 Rd7 22.f3 Nd6+= 23.e4 Ne5 24.Ba1 Nec4 25.a4 a6? 26.Rec2+– Rc8 27.Rc4 Nc4 28.Rc4 Rcd8 29.Kf2 f6 30.Ne6 Rc8 31.Rb4 c6 32.Nc5 Rdc7 33.d6 Rf7 34.Rb7 Rb7 35.Nb7 1–0. pierred (2155) – becinu (2380), net–chess.com, 2006.

13.Bc3 a6 14.d4 b5 15.Qc2 Bf5 16.Qd2 Ne7 17.Nh4 Be4 18.f3 Bb7 19.e4 Rad8 20.Rfd1 c6 21.Ba5= Bc7 22.Bc7 Qc7 23.Rac1 Qb6 24.g4 Rd6 Black gets strong initiative 25.Qb4 Red8 26.Rc5 a5=+ 27.Qc3 R8d7 28.Kf2 Qd8–/+ 29.Ke3 Nd5 30.ed5 Qh4 31.dc6 Bc6 32.Rc6? Qh6–+ 33.g5 Rc6 34.gh6 Rc3 35.Kf4 b4 36.ab4 ab4 (36...ab4 37.hg7 b3–+ (< 37...Kg7 38.d5–+)) 0–1. Martine,JM – Kossatschki,VV, corr ICCF EU/M/GT/243 (year?).

13.Bc3 Rad8 14.Qb1 Bf5 (14...Rb8!?=) 15.Qb7 Be4 16.Qb5 Qg4 (16...Bf3 17.Bf3 (17.gf3? Qh3 18.f4 Re6-+) 17...Nd4 18.Qd7 Nf3 19.gf3 Rd7 20.Rfc1+/-) 17.Ne1 (17.d3 Rb8 18.Qc4 Bf3 19.Bf3 Qc4 20.dc4 Ne5 21.Be5 Re5+/-) 17...Qg6 18.Bf3 Ne5 19.Be4 Qe4 20.Be5 Re5 21.Qb1 (21.Qa6 Rh5 22.g3 Rb8+=) 21...Qb1 (21...Rh5 22.h3 Qb1 23.Rb1 Ba3 24.Ra1+=) 22.Rb1+= Ra5 (22...Rh5!? 23.h3 Ba3+=) 23.Nc2+/- Ba3 (23...f5!?+/-) 24.Ra1+- (worse 24.Na3 Ra3 25.Rfc1 Rad3+=) 1-0. carlos78 (2305) - jarda (2090), Rated Blitz game, lichess.org, 2014.

13.Bc3 Rad8 14.d4 Qf5 15.Rb1+/- Qh5 16.h3 Bd7 (better 16...Bc8!?+/-) 17.Ne5+- Qg5 18.Nd7 Rd7 19.Rb5 Qg6 (19...Qh6 20.Bg4 (20.Rb7?! Re3 21.fe3 Qe3 22.Rf2 Qc3+=) 20...Rdd8 21.Qf3+- (21.Rb7?! Re3 22.Qd2 Bf4+-)) 20.Rb7 (20.Bd3 Qh6 21.Qg4 Rde7 22.Rb7 Qf6+-) 20...Ba3 (20...Bf8 21.Bg4 Rdd8 22.Qa4+-) 21.Qa4 Bf8 22.Bf3 Ne7 (22...Re4+-) 23.Qd7 (23.Qd7 Rc8 24.Rc7+-) 1-0. Pierre - Bel Mondo, internet, 2020.

13.Bc3 Qe6 14.d4 Qh6 15.g3 Rad8 16.Nh4 Bh3 17.Re1 Be7 18.Ng2 Bg5 (18...Nd4 19.Bd4 c5 20.Bb5=) 19.Bg4 Bg2 (19...Ne5 20.Bf3 Nf3 21.Qf3=+) 20.Kg2= Ne5 21.Bd2 (21.Bf3 Nf3 22.Qf3 c6=) 21...Nc4 (21...Ng4 22.Qg4 c5 23.Bc3=+) 22.Rc1 b5 23.a4 (23.Be2 Rd4 24.ed4 Bd2 25.Bc4 Be1 26.Bb5 Qf6+/-) 23...a6 (worse 23...Nd2 24.Qd2 ba4 25.Rc7+/-) 24.h4 (24.ab5 ab5 25.Be2 Qe6+=) 24...Be7 25.ab5 ab5 26.Bc3 (26.Be2 Ba3 27.Ra1 Qc6 28.Kg1 Nd2 29.Qd2 b4=) 26...Qg6 (26...Rb8 27.Be2=+) 27.Bh5 Qb6 (27...Qe6 28.e4=) 28.Rb1 (28.Qb3 Ra8=) 28...Bf6 (28...c5 29.Qb3 cd4 30.ed4=) 29.Qb3 Rb8 (29...Qe6 30.Be2=) 30.Be2+= Nd6 (30...Qc6 31.Kh2+=) 31.Bb4+/- Ne4 (31...Qb7 32.Bf3 Qc8 33.Qc2+/-) 32.Bf3 Nd6 (better 32...Bd8!?+/-) 33.Bd5+- Rf8 (33...Kh8 34.Ra1 Nb7 35.Rec1+-) 34.Rec1 (34.Ra1 Nb7 35.Bf8 Rf8+-) 34...Rbd8 (34...Be7 35.Ra1 c6 36.Rc6+-) 35.Rc6 (35.Ra1!? Nc4 36.Bc5 Rd5 37.Bb6 cb6+-) 35...Qb8 36.Rbc1 Rd7 37.Bd6 (37.Ra6 c5 38.Bc5 Rfd8+-) 37...cd6 38.Bf7?? (better 38.Rb1+-) 38...Rdf7-+ 39.Qe6 Qe8 (39...b4 40.Rd6 Kh8 41.Rb6 Qa8 42.Rbc6-+) 40.Qd6? (better 40.Qe8!? Re8 41.Rb6-/+) 40...Bh4!-+ 41.gh4 Rf2 42.Kg1 Qe3 43.Qe6 Qe6 44.Re6 Rb8?? (better 44...R2f4 45.Re5 b4-+) 45.Kf2+- 1-0. Morriss,Pete - Hoffmann,Hendrik (2325), Galway Masters, 2006.

13.Bc3= Re6 14.Ng5 Be2 15.Qe2 Rg6 16.Ne4 Re8 17.Qf3 a6 (17...Rh6 18.Nd6 Qd6 19.h3=) 18.Rfc1 (18.Rfb1 b5=) 18...Qe6 (18...Qe7 19.Nd6 Qd6 20.d4=) 19.Nd6 (19.d3 Rh6 20.h3 Rg6=) 19...Qd6 20.d4 Rf6 21.Qg3 Qg3 22.hg3 Rd6 23.Rab1 Nd8 24.Bd2 Rd7 25.g4 b6 26.a4 Re6 27.a5 b5 28.Rc2 f6 (28...Nc6 29.Bb4=) 29.Rbc1 c6 30.f3 h6 31.Kf2 Kh7 (31...Kf7 32.Bb4=) 32.Bb4 Rd5 33.Rd2 Rd7 34.e4 Nf7 35.d5 cd5 36.ed5 Re8 37.Rc6 Ra8 38.f4 Nd8 39.Rc1 (39.Rb6 Kg6+/–) 39...g5 40.g3 Kg6 41.Kf3 gf4 (41...Raa7 42.Re1+/–) 42.gf4+= f5 43.gf5 Kf5 44.Rh2 Kg6 45.Rg1 (45.Ke4 Nf7+/–) 45...Kh7 46.Bc3 Raa7 (46...b4 47.Bd4 (47.Bb4?! Rd5 48.Bf8 h5+/–) 47...Nc6 48.Bf6+=) 47.Bd4 Rab7 48.Ke4 Re7 49.Be5 (49.Kf5 Rf7 50.Bf6 Rf6 51.Kf6 Rf7 52.Ke5 Re7 53.Kd6 Ra7+–) 49...Rbd7 50.Rhg2 Nb7 51.Rg8 Nd6 (51...Nc5 52.Kf3 Re5 53.fe5+–) 52.Kd3 Re5 53.fe5 Nc4 (53...Nb7 54.e6 Re7 55.Kc3+–) 54.Kd4 (better is 54.e6 Ra7+–) 54...Ra7 (54...Nd2 55.e6 Rb7+–) 55.d6 Rb7 56.Re8 Na5 57.Kd5 Rb6 58.Ke6 Nc6 (58...Rb7 59.Re7 Kh8 60.Rf1 Rb8 61.d7 Nc6 62.Re8 Kh7 63.Rf7 Kg6 64.Rf6 Kg7 65.Rb8 Nd4 66.Ke7 Nf5 67.Rf5 Kg6 68.Rf6 Kh5 69.e6 a5 70.Rb5 Kh4 71.Rg6 a4 72.Rb1 Kh5 73.Rg7 a3 74.Rh1) 59.Kf6 (59...Rb7 60.Rgg8 Rf7 61.Kf7 Ne5 62.Re5 b4 63.Rg7 Kh8 64.Re8) 1–0. Mehlhorn,U – Rossbach,W, BFO–068, 2000.

13.Bc3= Re6 14.Ng5 Be2 15.Qe2 Rg6 16.Ne4 Rh6 17.f4=.

13.Bc3 Re6 14.Ng5 Be2 15.Qe2 Rg6 16.f4 h6 17.Ne4 f5 18.Ng3 Ne7 19.Nh5 Nd5 20.Qc4 Qf7 21.Bb2?? Re8?? 22.Ng3 c6 23.Qd3 Ne7 24.Rac1 Rd8 25.Qc2 Bc7 26.Bd4 b6 27.Rf2 Qd5 28.Bc3 c5 29.Ba1 Bb8 30.Qb2 Rf8 31.Qb5 Kh7 32.d4 cd4 33.Qd5 Nd5 34.Bd4 Re6 35.Nf1 Rd8 36.g3 Nf6 37.Rfc2 Ne4 38.Kg2 h5 39.Rc8 Ree8 40.Rd8 Rd8 41.Kf3 Rd5 42.h3= Ra5 43.g4+= hg4 44.hg4 Nc5 45.gf5 Bd6 46.Nd2+– Ra4 47.Rg1 Bf8 48.Kg4 Ra3+= 49.Nc4 Ra2 50.Ne5 b5? 51.Rh1 Kg8+/– 52.Ng6 Nd7 53.Rc1 b4? 54.Rc7 Nf6 55.Kf3 a5 56.Rc8 Nd7 57.Rd8 Kf7 58.Rd7 Ke8 59.Rb7 Bd6 60.Bg7 a4 61.f6 Kd8 62.f7 b3 (62...Rh2 63.Bf6 Kc8+–) 1–0. Liepert,Luise – Borries,Barbara, Bad Neustadt, 1986.

13.Bc3 Re6 14.h3 Rh6 15.Nd4 Bh3 16.Nc6 Bg2 17.Bg4 Bc6 18.f3 Qe7 19.Rf2 Rd8 20.Qb3 Qh4 21.Kf1 a6 22.a4 Bg3 23.Qb2 Rg6 24.Rg2 Bd5 25.d3 Be6 26.Be6 Qh1 27.Ke2 Qg2 28.Kd1 Qb2 29.Bb2 fe6 30.Ke2 Bd6 31.f4 Rg2 32.Kf3 Rb2 33.d4 c5 34.dc5 Bc5 35.Rc1 b6 36.a5 Rb3 37.ab6 Re3 38.Kg4 h5 39.Kg5 Bb6 40.Rc6 Rd5 41.Kh4 Bd8 Normal 0-1. carlos78 (2195) - Keru (2365), Rated Blitz game, lichess.org, 2015.

13.Bc3 Qe7 14.Qa4 Be6 15.Rfb1 Nd8 16.Nd4 Bd7 17.Qb3 c5 18.Nf3 Bf5 19.Rd1 Rc8 20.d4 a6 21.Rac1 Ne6 22.dc5 Bc5 23.Bb2 Be4 24.Rc4 Bc6 25.Ne5 Bb5 26.Rc2 Be2 27.Re2 Bd6 28.Nf3 Red8 29.Red2 b5 30.Qa2 Nc5 31.g3 Ne4 32.Rd4 Nc5 33.Rd5 ½–½. Bonoldi,Fabio (1880) – Campbell,John, OP–2010-0-01078, 2010.

13.Nbd2 Ne3! 14.fe3 Qe3 15.Rf2 Bh2! 16.Nh2 Be2 17.Qc2 Nd4 18.Bd4 Qd4 19.Re1 c6 20.Nb3 Qb6 21.Nc5 Bh5 22.Rb1 Qa5 23.Nb7 Qa3 24.Qc6 Rac8 25.Qd5 Bg6 26.Rd1 Rc1 27.Rc1 Qc1 28.Nf1 Qc7 29.Nd6 Rd8 30.Rd2 a5 31.Ne3 a4 32.Nec4 h6 33.Ra2 Qa7 34.Kh2 Rb8 35.Ne5 Rb1 ½–½. Schaefer,Dirk (2020) – Sikorsky,Reinhard (2150), remoteschach.de, 2004.

13.Re1 Rab8 14.Nbd2 Nce7 (14...Qg6 15.Nc4=) 15.Nc4 b5 16.Nd6 cd6 17.h3 Bh5 18.Rc1 a6 19.a4 Nf6 20.ab5 ab5 21.Bd3 b4 22.e4 d5 23.e5 Ne4 24.Be4 de4 25.Re4 Red8 26.Re3 (26.Rh4 Bg6+=) 26...Nd5= 27.Rb3 Nf4 28.Kh2 f6 29.ef6 Bf7 30.Re3 Qf6 31.Ne5 Bd5 32.Rg3 Rb7 33.Qg4 h5 34.Qg5 h4 35.Rg4 Qg5 36.Rg5 Ne6 37.Rg4 g5 38.Nd3 b3 39.f4 Rg7 40.fg5 ½-½. Mely - marekt (2585), ChessWorld.net, 2003.

13.Re1 Rad8 14.Qb3 =+.

13.Re1 Rad8 14.Nbd2 Qg6 15.Nc4 Bh3 16.Bf1 Bg4 17.Qd3 Qd3 18.Bd3 Be7 19.Rab1 Bf3 20.gf3 a6 21.Rec1 g6 22.Nd2 Na5 23.Ne4 c6 24.Nc5 Bc5 25.Rc5 Nb3 26.Rc2 a5 27.Bc4 a4 28.Bc3 Nc3 29.Rc3 (29.Rc3 Na5 30.Rb6=). Mely – SkyNet, ChessWorld.net, 2006.

13.Re1 Qg6 14.Nbd2 Rad8 (14...Bh3 15.Nh4 Qh6 16.Ndf3=) 15.Nc4= Bh3 16.Bf1 Nb6 17.Nfd2 (17.Nd6 Rd6 18.Rc1 Bg4=) 17...Bg4 18.Be2 (18.f3 Be6=) 18...Be2 19.Re2 Qh5 (19...Nc4 20.Nc4 Qh5 21.Nd6 Rd6 22.Rd2=) 20.Nd6 Rd6 21.Re1 Qd1 22.Rad1 f5 23.Rc1 Re7 (23...Kf7 24.Nb3=) 24.Nc4 Nc4 25.Rc4 a6 (25...Rd5 26.Bc3=) 26.Kf1 Kf7 27.Rc5 (27.a4 Red7=) 27...g6 28.a4 Red7 29.Rec1 (29.Ba3 Rf6=) 29...Rd5 (29...h6 30.R5c3=) 30.R5c4 (30.Rd5 Rd5 31.f3 Rd7=) 30...h5 (30...h6 31.Ke2=) 31.h4 Re7 32.Ba3 Red7 33.g3 (33.Ke2 f4+=) 33...Ra5= 34.Ke2 Ke8 (34...Ke6 35.f3=) 35.f3+= Na7 36.Bb2 (36.e4 b5 37.Rc7 Ra4 38.Rd7 Kd7=) 36...c6 (36...b5 37.Rc7 Ra4 38.e4=) 37.Bc3 Rad5 38.Bb4 Nc8 39.Bc5 Nd6 40.R4c2 Re7 41.Rb2 (41.a5 Kd7+=) 41...Rd7 (41...Rf7 42.a5+/–) 42.Kd3+/– Nf7 43.Kc3 (43.e4 Re5+/–) 43...Ne5 44.Bb6 Nf7 45.e4 fe4 46.fe4 R5d6 47.Rf1 Re6 48.e5 (48.Re2 g5+/–) 48...Nh6 49.Bc5 Nf5 50.a5 Kd8 51.Rf3 Kc8 52.Re2 (52.Kc4 Kd8+/–) 52...Rf7 53.Re4 Nd6 54.Ref4 Rf4 55.Rf4 Nf5 56.g4 hg4 57.Rg4 Ne3 58.Rg5 Nd5 59.Kc4 Ne3 60.Kd3 Nd5 61.Bd6 (61.Rg3 Kb8+/–) 61...Kd7 62.Kc4 b5 (62...Ne3 63.Kc5 Nf5 64.h5 Nd6 65.ed6 gh5 66.Rg7 Kd8 67.Rb7+–) 63.ab6 Nb6 64.Kc5 Nd5 (64...Nc8 65.h5 gh5 66.Rh5 Nd6 67.ed6+/–) 65.h5 (65.Rg3 a5+–) 65...gh5 (65...Nf4 66.hg6 Rg6 67.Rg6 Ng6 68.Kb6+/–) 66.Rh5+– Rg6? (better is 66...a5+–) 67.Rh7 Ke6 68.Kc6 a5 69.Rh3 Nf4 70.Rh8 (70.Ra3!? Rg1 71.Ra5 Rd1+–) 70...Kf5 71.Rf8 Ke4 72.Rf4! Kf4 73.e6 Kf5 74.e7 Rg8 75.d5 Kf6 (75...a4 76.Ba3 Ra8 77.d6+–) 76.Bc5 1–0. Mehlhorn,U – Traut,W, BFM–200, 2001.

12.Nc3 Nc3 13.Bc3 Rad8 14.Qb3 b6 15.Rac1 Bf3 (15...Bd6 16.Bb2=) 16.Bf3+= (worse 16.gf3 Qh3 17.Bc4 Re7-/+) 16...Ne5 17.Be5 Re5 18.Rc6 (18.d4 Ra5=) 18...Bd6 (18...Re6 19.Rc3 Rd6 20.d4=) 19.d4+= Ra5 Attacks the isolani on a3 20.a4 Qe7 21.h3 Qh4 22.Rfc1 Rg5 23.Kf1 Rf5 24.Qd1 (24.Rc7 Bc7 25.Rc7 h6+=) 24...Qf6 (24...a6 25.Qc2 Ra5 26.Kg1+=) 25.e4 Rf3 26.gf3 Bf4?? (better 26...Qh4+=) 27.Rf6+- (27.Rf6 gf6 28.Rc6+-) 1-0. carlos78 (2330) - LissRachel (2445), Rated Blitz game, lichess.org, 2015.

12.Nc3 Rad8 13.Qa4 a6?? (better 13...Nb6 14.Qb3 Na5-/+) 14.Nd5+/- Bf3 15.Bf3 (15.Bf3 Ne5 16.Qd7 Nf3 17.gf3 Rd7 18.e4+-) 1-0. norba94 (2340) - GruenfeldAdict (2310), Rated Blitz game, lichess.org, 2016.

12.Nc3 Rad8 13.Qc2 Nb6 14.Rfd1 Na5 15.d3 c5 16.Rab1 Bf5 17.Ba1 h6 18.Nb5 a6 19.Nc3 Qc7 20.Qb2 Nc8 21.e4 Be6 22.d4 Bb3 23.Rd2 b5 24.Rc1 Nd6 25.Qb1 (25.dc5!? Ne4 26.Ne4 Re4 27.Rd8 Qd8 28.Nd4=) 25...Ndc4=+ 26.Bc4 Bc4 27.Rcc2 (better 27.dc5!? Nb3 28.Rd8 Rd8 29.Rd1 Rd1 30.Qd1 Bc5 31.Bb2-/+) 27...Nb3-+ 28.d5 Nd2 29.Rd2 b4 30.Nd1 (30.ab4 cb4 31.Nd1 f5-+) 30...a5 (30...Qf4!? 31.ab4 Re4 32.Nc3-+) 31.Ne3 Bb5 32.e5 Qb7 33.Qe4 Qa6 (33...a4 34.Qc2-+) 34.Nh4 (34.Qc2!?-/+) 34...c4-+ 35.Nef5 (35.ab4 ab4 36.Bd4 c3-+) 35...c3 36.Rd4 (36.Rd1 Be2 37.Re1 Bd3-+) 36...Rc8 37.e6 (37.Rd1 b3 38.Qd4-+) 37...fe6 38.Nh6 (38.Ne3 b3 39.Bc3 Rc3-+) 38…gh6 (38...gh6 39.Qg6 Bg7-+) 0-1. Cotonnec,M (2290) - Picart,L (2060), 6th Sables-d'Olonne Open, 2019.

12.Nc3 Rad8 13.d4=.

12.d4 Re6 13.Nbd2 Rae8 14.Nc4 Nf4=+ 15.Ncd2 Ne2 16.Qe2 Bd6 17.Qc4 Rg6 18.g3 Rh6 19.Rfe1 b5 20.Qd3 Na5 21.e4= Nc4 22.Bc1 Rf6–/+ 23.Nh4 Be5 24.Nf5 Bf5 25.ef5 Nd2 26.Qd2 Rd6 27.Qe2 Rd4–+ Opening the d–file gets Black a lot of play 28.Rb1 Rd5 29.Rb4 Rd8 30.Re4–/+ f6 31.f4 Bc3 32.Re7–/+ Be1 33.Rd7 R5d7 34.Qb5 Rd1 35.Qc4 Kh8 36.Kg2 ½–½. Martine,JM – Buus Pedersen,H, corr ICCF EU/M/GT/243 (year?).

12.dc3 Qd1 13.Rfd1= Bd6 14.h3 Bh5 15.Kf1 Rad8 16.Nd4 (16.Rd2 Bg6=) 16...Be2 17.Ke2 Ne5 (17...Na5 18.Rab1=) 18.Rab1 b6 19.Nf5 g6 (19...Nc4 20.Rd4 b5 21.Ba1=) 20.Nd6 Rd6 21.Rd6 (21.Rd4 b5=) 21...cd6 22.Rd1 Nc4 23.Bc1 f5 (23...b5 24.Rd4=) 24.a4 (24.Rd4 b5=) 24...Kf7 25.Rd4 Re4 (25...Rc8 26.g4=) 26.f3 Rd4 27.cd4 d5 28.Kd3 Ke6 29.e4 fe4 30.fe4 Nd6 31.e5 Nc4 (31...Ne4 32.h4=) 32.g4 h5 33.Ke2 (33.Kc3 Na5+=) 33...Na5 34.Kf3 (34.gh5 gh5 35.Kd3 a6=) 34...Nb3 35.Be3 a6 36.Ke2 hg4 37.hg4 b5 38.ab5 ab5 39.Kd3 Na5 40.Bc1 Nc4 (better 40...Nc6!?=) 41.Kc3+/- Ne5 (better 41...Kd7!?+/-) 42.de5+- Ke5 43.Kd3 b4 44.Ke3?? (better 44.Kc2+-) 44...d4= 45.Kf3 b3 46.Bb2 g5 47.Ba3 Kd5 48.Bb2 Kc4?? (better 48...d3=) 49.Ke4+- d3 50.Ke3 d2 51.Kd2 Kd5 52.Ke3 Ke6 53.Ke4 (53.Ke4 Ke7 54.Bc1+-) 1-0. Lelgemann,Ludwig - Hilpmann,Werner, corr DDR-ch H145, 1972.

12.dc3 Bd6 13.Qb3 Na5 14.Qc2 Qe6 =+.

12.dc3 Bd6 13.Qc2 Bf5 14.Qa4 a6 15.Rfd1 b5 16.Qh4 Re6 (16...Qe7 17.Qe7 Re7 18.c4 bc4 19.Bc4=) 17.c4= Rh6 (better is 17...Rb8=) 18.Qg5–/+ f6 19.Rd6 cd6 (< 19...fg5 20.Rd7 Bd7 21.cb5=) 20.Qf4 bc4 (20...Rb8 21.cb5 ab5 22.Bb5=) 21.Bc4 Be6 22.Rd1 (22.Rc1 Ne5 23.Bb3 Bb3 24.ab3 Rb8–/+) 22...Bc4 (22...Ne5 23.Qe4 Rb8 24.Ne5 fe5 25.Be5 Bc4 26.Qc4 Qf7 27.Qf7 Kf7 28.Bd4=+ (28.Bd6?? Rd6 29.Rc1 Rb2–+)) 23.Qc4 Kh8 24.Ba3 Ne5 25.Qd5 (25.Qe4!? d5 26.Ne5 fe5 27.Rd5=) 25...Rd8–/+ 26.Nd4 Qf7 27.Qf7 Nf7 28.Nf5 Rh5 29.g4 Rg5–/+ 30.h3 h5 31.f4 Rg6 32.Ne7 Rh6 33.Nf5 Rh7 34.Kg2 hg4–/+ 35.hg4 Kg8 36.Nd6=+ g6 37.Rd4 Nd6–/+ 38.Rd6 Rd6 39.Bd6 f5 40.gf5 gf5 41.a4 Kf7 42.Be5 Ke6 43.Bd4 Kd5 44.Kf3 Kc4 45.a5 Kd3 (46.Kg3 Ke4–/+) 0–1. Labahn,Thomas – Wolfenter,F, corr, 1995.

12.dc3 Bd6 13.Qc2 Bf5 14.Qb3 Na5 15.Qb5 Qb5 16.Bb5 c6 17.Be2 Be6 18.Nd2 Rad8 19.Rfd1 b6 20.g3 (20.h3 f5=+) 20…Be5 (20...Kf8 21.h4=+) ½–½. Macchiagodena – Betzelt, corr ICCF TT–4–90 SF, 1995.

12.a3 Ba5 13.Qc2 Bf5 14.Bd3 Bg6 15.Bg6 hg6 16.Nc3 Bc3 17.Bc3 Qf5 18.Rfc1 Qc2 19.Rc2 f6 20.Rb1 b6 21.Bd2 Rd6 22.Rbc1 Nb8 23.Ne1 Nd7 24.Nd3 a5 25.Rc6 Rc6 26.Rc6 g5 27.g4 Nf8 28.Ne1 Ng6 29.Ng2 Re7 30.f3 Rd7 31.Kf2 Kf7 32.Kg3 Nde7 33.Rc2 Ke6 34.Bc3 Nd5 35.Bd2 Nde7 36.Bc3 Nd5 37.Bd2 (37.Bb2!?+=) 37...Nde7= 38.Bc3 ½-½. Walter,Gerhard (2000) - Lechenbauer,Karl (1975), Liechtenstein Seniors op, 2009.

12.a3 Bd6 13.Nbd2 Kh8 (13...Na5 14.Rc1=+) 14.Qc2 f5 (14...Qf5 15.Qf5 Bf5 16.Bc4+=) 15.Qb3 (15.Nc4 Rc8=) 15...Nce7 (15...Na5 16.Qb5 Qb5 17.Bb5=) 16.Bc4 (16.Nc4!?+=) 16...c6= 17.Ng5 Ng6 18.f3 Re3 19.Qc2? (19.Bd5 Rb3 20.Bb3+=) 19...Bh5-+ 20.g4? (better 20.Bd5 cd5 21.Rae1-+) 20...fg4 21.Nf7 Qf7 22.fg4 Ngf4 23.Ne4 (23.gh5 Qh5 24.Rf4 Bf4 25.Nf1-+) 23...Qg6 24.Bd3 (24.Rfe1-+) 24...Qg4 25.Kh1 Rd3 (25...Rd3 26.Qf2 Qf3 27.Qf3 Bf3 28.Rf3 Rf3-+) 0-1. Genne,Rene - Spycher,Bernard (2210), Lenk op, 1989.

12.a3 Bf8 13.Nbd2 a6 (13...Bf5 14.Bb5=) 14.Bd3= g6 (14...Bd6 15.Qb3=) 15.h3 Bf3 (15...Be6 16.Ng5=) 16.Qf3+= Bg7 17.Rac1 Na5 18.Rc5 b5 19.Rfc1 c6 20.Bb1 Re6 21.Ba2 Rf6 22.Qg3 Qe7 23.R5c2 Qd6 (23...h6 24.Rc5+=) 24.Qg4 (24.Qd6 Rfd6 25.Ne4 R6d7+/-) 24...Qe7 25.Ne4 White fights for the Initiative 25...Rf5 26.Ng3 Rg5 27.Qf3 h5 28.Rc5 Re8 29.Ne2 (29.e4 h4 30.ed5 hg3 31.fg3 Qe2+=) 29...Rf5 30.Nf4 (30.Bd5 Rf3 31.Bf3 Nb3-/+) 30...Bh6 31.g3 (31.Bd5 Bf4 32.ef4 cd5=) 31...Qf6+= 32.Qg2 (32.Nd5 cd5 (32...Rf3? 33.Nf6 Rf6 34.d5 Rf2 35.Kf2 Be3 36.Kf3 Bc1 37.Rc1+-) 33.Qe2 Rf2 34.Qf2 Be3 35.Qe3 Re3 36.Bd5 Nc4 (worse 36...Rg3 37.Bg2 Nc4 38.Rc8 Kg7 39.R8c4 bc4 40.Rc2-+) 37.Rc8 Kg7-+) 32...Bf4 33.gf4 (worse 33.ef4 Re2 34.R5c2 Ne3 35.fe3 Rg2 36.Kg2 Qe7=) 33...Qd6 (33...Ne7 34.Rf5 Qf5 35.Bc3+/-) 34.a4 Qd7 35.Qg3 (35.Ba3 Rb8+/-) 35...Rf6 36.ab5 ab5 37.Bd5 (37.Ra1 Nb7 38.Rcc1 Nd6+=) 37...cd5= 38.Qg2 (38.Qf3 Nc4 39.Bc3 Rf5=) 38...Rd6 (38...Rf5 39.Rc7 Qd8 40.Ra7=) 39.Rc7 Qf5 40.Ba3 Ra6 41.Qg5 (41.Bb4 Nb3 42.R1c2 Ra1 43.Kh2 h4=) 41...Qe6 42.Bb4 Nb3 (42...Qh3 43.Qd5 Qf5 44.Qf5 gf5 45.R1c5+-) 43.f5 Qe4 44.Re1 Qf3 45.h4 (45.Rb7!? Qh3 46.Rb1= (46.Rb5 Re4 47.f3 Qf3 48.Rb8 Kh7 49.Rh8 Kh8 50.Qh6 Kg8 51.Qf8 Kh7 52.Qf7 Kh6 53.Bf8 Kg5 54.Qe7 Re7 55.Rf1 Qg4 56.Kh1 Qh3 57.Kg1 Ra2 58.Be7 Kh6 59.Bf8 Kh7 60.fg6 Kg8 61.Rf2 Ra1 62.Rf1 Rf1)) 45…Kg7=+ (worse 45...Qf5 46.Qf5 gf5 47.Rb1+=) ½-½. Wolf,Wolfgang - Buchholz,Karl Heinz, BdF, 1996.

12.Qc2 Bf5 13.Bd3 Bd3 14.Qd3=+.

12.Qc2 Nf6 13.Nbd2 (13.Ba3 Qd6 14.Bb4 Nb4=) 13...Bd2 (13...Bf5 14.Qb3=+) 14.Qd2= Ne5 (14...Ne4 15.Qc2=) 15.Ne5 Re5 16.f3 (16.de5 Exploits the pin 16...Qd2 A double attack) 16...Bh5 17.g4 Ng4 (17...Rde8!? 18.gh5 Re3+/-) 18.fg4 Bg4 19.Rf4 (19.Bd3 Bh3 20.Rf2 Re7+/-) 19...Be2 20.Qe2 Rg5 21.Kh1 Qc6 (21...f5 22.Raf1+/-) 22.Qf3 (22.e4 Qe6+-) 22...Qc2 (22...Qf3 23.Rf3 c5 24.dc5 Rc5 25.Bd4+-) 23.Rf7 White creates threats along the open f-file (23.Qb7 Rf8 24.Ba3+/-) 23...Qb2+= 24.Rf1 Threatening mate: Rf8 24...Qb4 (24...h6!? 25.Rc7 Qa2 26.Rb7 a5+=) 25.Rc7+/- Rf8 (better 25...h6!?+/-) 26.Rf7+- Threatening mate: Rxf8 26...Rb8?? (26...Re8 27.Rb7 Qc4 28.Ra7 h6+-) 27.Qf4 (27.Qf4 h6 28.Qb8 Kh7 29.Qb7+-) 1-0. Nicklich,Wolfgang (2005) - Hilpmann,Werner (1930), corr DDR-ch M618, 1979.

12.Nbd2 Qe6 13.Nb3 Qg6 14.Nh4 Be2 15.Qe2 Qe4 16.g3 Nc3 17.Qf3=+ Na4 18.Qe4 Re4 19.Rab1 Rd5 20.Ba1 Rh5 21.Nf3= Re8 22.Rfc1 Ba3 23.Rc2 Bd6 24.Nbd2 Nb6 25.Nc4 Nc4 26.Rc4 Nd8 27.a4 c6 28.Bc3 Rd5 29.Nd2 f6 30.e4+= Rh5 31.f4 a6 32.a5 Rb5 33.Re1 Bc7 34.Ra4 Ne6 35.Kg2 Rd8 36.Nf3 Bd6 37.Nd2 Nc7 38.f5 Ne8 (38...g6 39.Nc4+=) ½–½. Mauersberger,H – Luers,H, corr QTV, 1991.

12.Qe2 Nd4 13.Bd4 Nf4 14.Qf3 Ne2 15.Qe2 Qd4 16.Nc3 Bc3 17.dc3 Qc3 18.Qb5 b6 19.Rac1 Qa3 20.Rc7 Qa2 21.Rfc1 h6 22.R7c2 Qe6 23.Rc6 Qe5 24.Qc4 b5 25.Qb3 a6 26.Qa2 Re6 27.R6c5 Qf6 28.Rb5= Rd8 29.Rd5 Red6 30.Rd6 Qd6 31.h3 Qb6 32.Rb1 Qc6 33.Qa5 Rd5 34.Qa2 a5 35.e4 Rb5 36.Rd1 Qc7 37.Qa4 Re5 38.f4 Re7 39.e5+= Qc5 40.Kh1 Qc7 41.Rd6 Re6 42.Rd5 Ra6 43.Kh2 g6?? 44.Qe8+– Kg7 45.Rd8 Qd8 46.Qd8 a4 47.Qd3 Ra8 48.Qa3 1–0. Koester,Roman (2125) – Richter,Gerhard (2040), Oberliga Ost–B, 2005.

12.Qe2 Nf4 13.Qf3 Nd3 14.Nf5=+ Nb2?? 15.Qg4 +–. Bonetti,Shane – KermitTheFrog (2070), ICC, 2002.

12.Ne2 Rad8 13.d4 Bd6 14.Ng3 Nce7 15.Qb3 c6 16.Nd2 f5 17.e4 fe4 18.Nge4 Qc7 19.Nd6= Rd6 20.Rae1 Qb6 21.Qc2 Rdd8 22.Nc4 Qc7 23.Ne5 Qa5 24.Re4 Nf6 25.Rh4 Ned5 26.g4 g5?? 27.Rh7!+– (27.Rh7 Nf4 28.Qb3 Qd5 29.Qd5 Rd5 30.Rb7+–) 1–0. Novikov,Konstantin I – Kozlov,Mikhail P, Tula op, 2000.

12.Ne2 Rad8 13.d4 Qe6 14.Nbc3 Nce7 15.Qb3= b6 16.Nd5 Nd5 17.Nc3 Bc3=+ 18.Bc3 Nc3 19.Qc3= c5 20.dc5 Rc8 21.Qa3 Qe7 22.Rac1 bc5 23.Rc3 Rc7 (23...Red8 24.Rd3=) ½–½. hal1958 – Gorodish, playchess.de, 2002.

12.Ne2 Rad8 13.d4 (13.d3 Qe6=+) 13...Qe7 14.Nbc3 Nf6 15.Ng3 g6 (15...Qe6 16.Qf3=+) 16.Qf3= h5 (16...Bd6 17.d5 Ne5 18.Qe2=+) 17.Nce2 (17.Rfd1!?=) 17...h4=+ 18.d5 (better 18.Nh1!?=+) 18...Ne5 (18...hg3 19.Bf6 Ne5 20.Qf4 gh2 21.Kh1 Qf6 22.Qf6 Rd5 23.Qh4+-; 18...Nd5?! 19.Rad1 hg3 20.Rd5 gf2 21.Rf2-+) 19.Be5 Qe5 20.Nh1 (20.a3 Bd6 (20...hg3?! 21.ab4 gh2 22.Kh1-/+) 21.Rfd1 hg3 22.hg3 Kg7-+) 20...Nd5 21.Rad1 c6 (21...Bd6 22.Qh3 Qh5 23.Nd4-/+) 22.g3 (22.Rd4 Qh5 23.Qh5 gh5 24.Rh4 c5=) 22...hg3 (22...Qe4 23.Qe4 Re4 24.Nf4-+) 23.Nhg3 Nc3 (23...Qf6 24.Qg4 c5 25.Ne4-+) 24.Nc3-/+ Bc3 (24...Qc3 25.Ne4 Rd1 26.Rd1 Re4 27.Qe4+/-) 25.Kh1 (25.Rd8 Rd8 26.Ne4 Bb2-/+) 25...Qf6-+ 26.Qg2 Rd1 27.Rd1 Rd8 28.Rg1 Qe6 29.h4 (29.Ne4 Be5-/+) 29...Kf8 (29...Rd2 30.Ne4 Rc2 31.Nc3 Rc3 32.Rb1-+) 30.h5 gh5 (30...Qa2 31.Ne4 Rd5 32.Ng3-+) 31.Ne4 Bf6 32.Qf3 (32.Nc5 Qd5 33.Nb7 Qg2 34.Kg2 Rd2-+) 32...Ke7 33.Rb1 (33.Nf6 Qf6 34.Qe4 Kd7-+) 33...b6 34.Qf4 (34.Rg1 Bb2-+) 34...Qh3 35.Kg1 Rg8 36.Ng3 h4 37.Qc7 (37.Rb4 hg3 38.Re4 Kd7 39.Qf6 Qh2 40.Kf1 g2 41.Ke2 Qh5 42.f3 Qb5 43.Kd2 Qa5 44.Kd3 Qa3 45.Ke2 Qa2 46.Kd3 Qa6 47.Kd2 Qa5 48.Kd3 Qa3 49.Ke2-+) 37...Qd7 38.Qf4 hg3 39.fg3 Qd6 40.Qe4 (40.Qd6 Kd6 41.Kf2 Ke5-+) 40...Qe5 41.Qb4 (41.Qe5 Be5 42.Rc1 Rg3 43.Kf2 c5-+) 41…c5 (41...c5 42.Qf4 Rg3 43.Kf2 Rh3-+; 41...Ke8 42.Kf1-+) 0-1. Armstrong,Fred - Quinn,Mark, Telecom op Dublin, 1991.

12.Ne2 Re6 13.Nbc3 Nc3 (13...Rh6 14.Qb3 Rd8 15.Rab1=+) 14.Nc3 (14.Bc3 Bc3 15.Nc3 Rg6=) 14...Rh6 (14...Qd3 15.Qb3=+) 15.d4 Bd6 (15...Rd8 16.h3=+) 16.f4 Qe7 (16...Re8 17.d5 Ne7 18.Qf3=+) 17.Qf3 (17.Rf3 Re8=) 17...Re8=+ 18.Rae1 (18.Bc1 f5=+) 18...Bb4 (18...Qh4!? 19.Qg3 Qg3 20.hg3 Rg6=+) 19.Re2= Bc3 20.Bc3 Qe4 21.d5 Nd8 (21...Qf3 22.Rf3 Ne7 23.Rd2=) 22.Be5 (22.Qe4 Re4 23.Be5 Rc4+/-) 22...Qf3+= 23.Rf3 c6 24.d6 The passed pawn on d6 will quickly become a dangerous weapon 24...Rhe6 (24...f6 25.Bc3+=) 25.Rd2 (25.d7 Rf8+/-) 25...f6 (25...Rf8!?+/-) 26.d7+- Rf8 27.Bd6 Rf7 28.Bc7 (28.f5 Re4 29.Rf4 Rf4 30.Bf4 g6+-) 28...Rf8+/- 29.Rd4 (29.f5!? Re7 30.Rff2+-) 29...c5+= 30.Rd5 b6 31.e4 Rc6 32.Bd8 (32.Bd6!? Rf7 33.Bb8+/-) 32...Rd8= 33.e5 Kf7 34.ef6 Rf6 (34...Kf6 35.Re3 Rc7 36.g4=) 35.f5 (35.Kf2 Rc6=) 35...Rc6=+ 36.g4 Rc7 37.Rfd3 c4 38.Rd1 c3 39.Kf2 c2 (39...b5 40.h4=+) 40.Rc1= Ke7 41.Rd2 Rdd7 42.Rd7 (42.Rdc2 Rd2 43.Rd2 Rc1=) 42...Rd7 (better 42...Kd7!? 43.Ke3 Ke7-/+) 43.Rc2= b5 (43...Rd4 44.Kf3 Kd6 45.Re2=) 44.Ke3+= a5 45.h4 a4 46.a3 Rb7 47.Kf4 (47.Rb2!?=) 47...b4=+ 48.ab4 Rb4 The passed pawn on a4 quickly leads to threats 49.Kg5 Rb7 50.Ra2 Ra7 51.Ra3 Kf7 (51...Kd6 52.h5=) 52.Kf4 Ra5 53.h5 Kf6 54.g5 Ke7 55.Re3 Kf8 56.Ra3 Kf7 57.h6 (57.Kg4 h6=) 57...gh6=+ 58.gh6 Kf6 59.Kg4 Ra7 60.Kf4 (60.Kh5 Ke5=) 60...Ra6 61.Kg4 Ra5 62.Rc3 a3 (62...Rf5?? 63.Rc6 Ke5 64.Rc5 Kf6 65.Rf5 Kg6 66.Ra5 Kh6 67.Kf5+-) 63.Rc6 Ke7 64.Rc7 Kd6 65.Rc1 a2 66.Ra1 Ke7 67.Kg5 Kf7 68.Kf4 Kf6 69.Kg4 (69.Ke4 Ra4 70.Kd5 Kf5-+) 69...Ra4 70.Kh5 Kf5 71.Rf1 Ke4 72.Ra1 Ra5 73.Kg4 Kd3 74.Rd1 (74.Kf3 Kc3-+) 74…Kc2 (74...Kc2 75.Ra1 Kb2 76.Ra2 Ra2-+) 0-1. Jacobi,Robin (1620) - Schubert,Sven (1785), Willingen GER, Ch U14 (b), 2005.

11.d4 a5 12.a3 Bd6 13.h3 (13.Nbd2 Re7 14.Bd3 h6 15.Rc1 Rb8= 0.00; 13.Nc3 Bf3 14.Bf3 Bh2 15.Kh1 Qh4-+ -2.19) 13...Bh5 14.Nc3 Nce7 15.Ng5 Nc3+= 0.69.

11.d4 Qd7 12.a3 Bd6 13.Qd3 (13.Qb3 Rh6 14.Re1 Bf3 15.Bf3 Bh2= -0.22; 13.Nc3 Nc3 14.Bc3 Rh6 15.Ne5 Be2= -0.13) 13...Bf3 14.Bf3 Rh6 15.h3 Nce7= 0.12.

11.d4 Re8 12.a3 Bd6 13.Nc3 Be6 14.e4 Nc3 15.Bc3 Bg4= 0.22.

11.d4 Bf5 A) 12.Bc4 Rg6 (12...Na5) 13.Nbd2 (13.a3 Bh3 14.Bd3 Rg2 15.Kh1 Be7-/+ -1.28) 13...Nb6 14.Be2 Qf6 15.Rc1 Re8= -0.25; B) 12.a3 Be7 13.Nc3 Nc3 14.Bc3 Qd5 15.Qa4 Rg6= 0.00.

11.d4 Rg6 12.Nfd2 (12.Bd3 A) 12...Rh6 13.h3 (13.a3; 13.e4; 13.Be4) 13...Be6 14.e4 Nf4 15.d5 Rg6= 0.19; B) 12...f5 B1) 13.a3 Bh3 14.Bf5 Bf5 15.ab4 Ndb4= -0.13 (15...Ncb4=) ; B2) 13.Kh1 Rh6 14.h3 Qf6 15.Bc4 Rd8= 0.00) 12...Bh3 (12...Be2 13.Qe2 Qh4 14.Qf3 Rd8 15.Ba3 Bd2=+ -0.59) 13.Bf3 Qg5 (13...Rb8 14.a3 Ba5 15.Nc4 Qd7= 0.12) 14.Ne4 Qh4 15.Ng3 (15.Nbd2 Bf5=+ -0.28) 15...Be6 16.e4 Nf4 17.d5 Rh6 18.Nh5 (18.h3 Bc5 19.Ne2 (19.dc6 Qg3 20.Kh1 Bh3 21.Qd8 Rd8 22.Kg1 Ne2 23.Be2 Qg2) 19...Bh3 20.Bf6 gf6 21.Qd4 Bg2 22.Qc5 Qh2) 18...Nh5-+ 19.de6 Nf6?? (19...Nf4 20.ef7 Kf8 21.Bg7 Kg7-+) 20.ef7= Kf8 21.Bh5?? (better 21.h3 Ne4 22.Qd7=) 21...Rh5-+ 22.f3 (22.h3 Ne4 23.Qf3-+) 22…Bc5 (22...Bc5 23.Qd4 Nd4 24.h3 Ne2 25.Kh1 Qh3 26.gh3 Rh3 27.Kg2 Nf4) 0-1. Steche,Roland - Kaczorowski,Piotr, corr, 1984.

11.Nd4 Rh6? 12.Bg4+- Qh4 13.h3 Nd4 14.Bd4 (14.ed4?! Rd8+-) 14...Re8 (14...c5 15.Be5 Qe7 16.d4+-) 15.a3 (15.Qb3!? c5 16.Bc5 Bc5 17.Qd5 Bd6+-) 15...Bd6 16.Qf3 c6 17.g3 (17.Ba7 Rf6 18.Qd1 Rg6+-) 17...Qe7 18.d3 Nf6 19.Kg2 Ng4 20.Qg4 Rg6 21.Qf3 Qg5 (21...a6 22.a4+-) 22.Nd2 c5 23.Ne4 Re4 24.Qe4 (better 24.de4!? cd4 25.ed4 b5+-) 24...cd4 25.Rac1 de3 26.Rc8 Bf8 27.Rfc1 (27.Qe3?! Qd5 28.Qe4 Qd7+-) 27...Re6 (27...Rc6 28.R1c6 bc6 29.Qb4+-) 28.Rf8! Kf8 29.Qb4 Ke8 30.Rc8 Kd7 (30...Qd8 31.Rd8 Kd8 32.fe3 Re7+-) 31.Qb7 Kd6 32.Qc7 Kd5 33.Qc5 1-0. Williams,Barry M - Harris,Pascal, NZL Wanganui Chess Club Summer Handicap, 2000.

12.Bg4 f5 13.Bh3 Nc6 14.Bf5 Rh6 15.g3 (15.Qg4+/–; 15.e4+/–) 15...Nce7 16.Be4 c6 (16...Qd7 17.Bg2 Rb6 18.e4+/–) 17.Qb3 (17.Bd5 cd5 18.Bg7 Rg6+–) 17...Kh8 (17...Re6 18.d3 Qd6 19.a3+–) 18.Bg2 (18.Bd5!? Nd5 19.e4 Qd7+–) 18...Qa5+/– 19.a3 Bd6 20.e4 (worse is 20.Qb7 Rb8 21.Bg7 Kg7+=) 20...Nf6 (20...Qb6 21.Qb6 Nb6 22.d4+–) 21.d4 (21.Qb7? Rb8 22.Qb8 Bb8–+) 21...Qh5 (better is 21...Bc7+–) 22.h4 (22.h4 Rb8 23.e5+–) 1–0. Fishman,WM – Szabo,J, corr ICCF EU/M/GT/220 (year?).

12.Bg4 f5 13.Bh3 Nc6 14.Bf5 Rh6 15.Qg4 Nf6 (15...Qe7 16.Be4 Rd8 17.a3 Nf6 18.Bf6 Qf6 19.d4+/–) 16.Qe2 (16.Qg3 Qe7 (16...Nh5 17.Qf3 Nf6 18.d4 Qd6 19.h3+/–) 17.Nc3 Rd8 18.Rfd1 Rf8 19.f4+/–; 16.Qc4 Kh8 17.h3 Qd6 18.a3 Ba5 19.Rc1+/–; 16.Qf4 Qe7 17.Nc3 Qf7 18.Qg3 Rd8 19.Bc2+/–) 16...Bd6 (16...Qd6 17.h3+/– (17.f4 Re8 18.a3 Ba5 19.Qd3+/–) 17...Ne7 18.Bc2 c6 19.Qc4+/–; 16...Nd5 17.f4 Qh4 18.g3 Qe7 19.a3+/–) 17.f4 Ne7 (17...Qe8 18.g4 Nd5 19.g5+–) 18.Bc2 (18.Be6 Kh8 19.Nc3+/–) 18...Qd7 (18...c6 19.Bb3+/–) 19.Nc3 (19.Bf6+/–) 19...Ng4 (19...Rf8 20.Bb3 Kh8 21.Rae1+/–) 20.h3 Nf6 21.Ne4 Ne4 22.Be4 c6 23.Rf3 (23.Qc4 Qe6 24.Qe6 Re6+–) 23...Kh8 (23...Qe6 24.Qd3 Nd5 25.Rc1+/–) 24.f5 (24.Rg3!? Rg8+–) 24...Ng8+/– 25.Bc2 Re8 26.d4 c5 27.Rd1 Qc7 28.Rc1 Qa5 29.Bb3 Nf6 30.dc5 Bc5 31.Qc4 Bb6 32.Kh1 Qd2 33.Bf6 Rf6+/– 34.Rd1 Qa5 35.Qd3 Rd8 36.Bd5 Bc7 37.g4 Rb6 38.Rf2 Qc5 39.Rg2 Ra6 40.Rc2+/– Qd6? 41.Bb7+– Qd3 42.Rd3 Rad6 43.Rd6 Bd6 44.Kg2 Kg8 45.Kf3 Rb8 46.Rd2 Be5 47.Ke4 Bf6 48.Rd7 (48.Rd7 Re8 49.Kf3+–) 1–0. Jacobi,KH – Strelis,V, corr, 1975.

11.Qa4 Nb6 12.Qc2= Bd6 13.h3 Bh5 14.Qc3 (14.Nc3 Bg6 15.d3 Nb4=) 14...f6 (14...Ne5 15.Nd4 Be2 16.Ne2-/+) 15.Nd4 Be2 16.Ne2 Rad8 17.d4 Kf8 18.Qc2 Kg8 19.a4 Nb4 20.Qb3 Qf7 21.Qd1 Nc4 22.Bc3 Nd5 23.Be1 Nde3 24.fe3 Ne3 (worse 24...Re3 25.Nbc3+=) 25.Qd3 Nf1 26.Kf1 Qd5 27.Bf2 Bb4 28.Nbc3 Qa5 29.Qc4 Kh8 30.Na2 (30.Rb1!? Bc3 31.Nc3+= (worse 31.Qc3 Qa6 32.Rb2 Qa4-/+)) 30...Bd6 31.Rb1 b6 32.Nac3 a6 33.Qd5?? (33.d5!?+=) 33...Qd5 (better 33...Re2!? 34.Qa5 Rf2 (34...ba5? 35.Ne2 Kg8 36.Rb7+-) 35.Kf2 ba5-+) 34.Nd5=+ Kg8 35.Nb4 a5 36.Nc6 Kf7?? (better 36...Rd7=+) 37.Nd8+- Rd8 38.Bg3 (38.Bg3 Bg3 39.Ng3 Rd4 40.Ra1=) 1-0. carlos78 (2280) - Skiller2 (2240), Rated Blitz game, lichess.org, 2015.

11.Qa4 Bd7 12.Qb3 Nf6 13.d4 Bd6 14.Nbd2 (14.Qb7? Rab8 15.Qa6 Rb2-+) 14...Be6 15.Qd1 (15.Qb7 Nb4 16.Ne5 Bd5=) 15...Bd5=+ 16.Nc4 Ne4 17.Nd6 Qd6 18.Nd2 f5 19.Ne4 fe4 20.Qa4 Re6 21.Bc4 (21.Ba3 Qd8=) 21...Kh8 (21...Qb4 22.Qb4 Nb4 23.Bd5 Nd5 24.Rab1=) 22.Bd5 Rh6 23.g3 (better 23.f3!? Qd5 24.fe4 Qe4 25.Qa3+=) 23...Qd5=+ 24.Qd1 Qf5 (24...Rf8 25.Qg4-/+) 25.f4 (25.f3!?=) 25...Nb4-/+ 26.Rf2 Nd3 27.Rg2 c5 28.dc5 Nb2 (better 28...Qc5!? 29.Bd4 Qe7=+) 29.Rb2= Qc5 30.Qe2 (30.Qd4 Qd4 31.ed4 Rd6+=) 30...Rb6 31.Rc2 Qe7 32.Rac1 Rd8 33.Rc8 h6 34.Qg4 Rbd6 35.R1c7 Qf6 36.Rd8 Rd8 37.Qe2 (37.Rb7?? Qa1 38.Kf2 Rd2 39.Qe2 Re2 40.Ke2 Qa2 41.Ke1 Qh2-+) 37...Qb6 38.Rc2 Rd3 39.Kf2 Qd6 40.Qe1 (40.Qg4 Rd5=) 40...b6 41.Re2 Kh7 42.Qc1 Rd1 43.Qc4 Qd3 44.Qd3 ed3 45.Rb2 Rh1 46.Kg2 (better 46.Kf3!? Rd1 47.e4=) 46...Rc1-/+ 47.Kh3 (47.Kf3 Rc2 48.Rb5 Rh2-/+) 47...Re1 (better 47...Rc2 48.Rb3 d2-+) 48.Rd2 Re3 49.Kg4? (better 49.Kg2!?=) 49...b5 50.h3 (better 50.a3!?-/+) 50...b4 51.f5 a5 52.Kf4 Re2 53.Rd3 Ra2 0-1, Saelens,G - Verbeke,J, Interclub Belgium, 1989.

11.Qb3 Qd7 (11...Nf4 12.Bd1 Be6 13.Qc2=+) 12.a3 Bd6 13.Re1 a6 14.d3 Nb6 15.Nbd2 Rad8 16.Rad1 Be6 17.Qc3 The mate threat is Qxg7 17...f6 18.Nc4 Nc4 19.dc4 Qf7 20.c5 Bf8 21.Nd4 Nd4 22.ed4 Bd5 23.Bf3 c6 (23...b6 24.cb6 cb6 25.Qd3=) 24.Rb1 Re1 25.Re1 Bf3 26.Qf3 (worse 26.gf3 Be7=+) 26...g6 27.Qe3 Bg7 28.Qe7 Rd7 29.Qe8 (29.Qe4 f5 30.Qf4 h6=) 29...Qe8 30.Re8 Kf7 31.Re1 f5 Exerts pressure on the backward pawn 32.Rd1 Ke6 33.Kf1 Kd5 34.Ke2 (34.Rd3!?=+) 34...Kc4-/+ 35.Ke3 Re7 36.Kd2? (better 36.Kf3-/+) 36...Bh6-+ 37.Kc2 Re2 38.Kb1 Rf2 39.Re1 (39.g3 Rh2 40.Re1 Bd2-+) 39...Rg2 40.Re7 b5! 41.cb6 (41.Rh7 Be3 42.Re7 f4-+) 41...Kb3 (41...Rh2 42.b7 Bf4 43.Re5 Rb2 44.Kb2 Kd4 45.b8Q Be5 46.Qd8 Kc5 47.Kc2+-) 42.Bc3 Rc2 43.Re1 Kc3 44.Ka1 Rc1 45.Rc1 Bc1 46.Ka2 Kc2 (better 46...Kd4 47.b7 Bf4-+) 47.b7 (47.h3-+) 47...Bf4 48.h3 Bd6 49.a4 f4 (49...f4 50.Ka1 f3 51.b8Q Bb8 52.Ka2 f2 53.h4 f1Q 54.a5 Qc4 55.Ka3 Bd6) 0-1. Coope,Derek William - Ciborowski,Artur, EM/CL/Q07-4 ICCF Email, 2002.

11.Qb3 Be6 12.Bc4? (better 12.Qc2=+) 12...Na5-+ 13.Qc2 Nb6?? (better 13...Nc4 14.Qc4 Ne3-+) 14.Be6= fe6 15.Ne5 Rad8 16.d4 Bd6 17.Qe4 (17.Qc3 Bb4 18.Qd3 Rf8=) 17...Be5=+ 18.Qe5 (18.de5 Nac4 19.Bc3 c5=+) 18...Nac4 19.Qb5 a6 20.Qb3 Nb2 21.Qb2 e5 22.Qb3 Kh8 23.de5 Qe5 24.Qc3 Nc4 25.Qe5 Ne5 26.Nc3 c5 27.Rab1 (27.a4 Rd2-/+) 27...b5-/+ 28.a3 (28.Rfd1 Nd3-/+) 28...Nc4 29.Ra1 b4 (29...Kg8 30.Rfd1-/+) 30.ab4 (30.Na4 Nd2 31.Rfe1 Nb3=+) 30...cb4 31.Ne2 a5 32.Nd4 h6 (32...Kg8 33.Rfc1 Rc8 34.Rc2-/+) 33.Rfc1 Rc8 34.Nb3 Kg8 (34...Rf8!?=+) 35.h3 (35.Na5? Na5 36.Rd1 Nc4-+) ½-½. Kern,Guido – Gallmann, Hessen clubgame, 1990.

11.Qc2 Nf4 12.Bd1 Nd5 (12...Ng6 13.d3=+) 13.Nc3 (13.Be2 Bd6=+) 13...Rad8 14.d4 Bh5 (14...Qd7 15.Nd5 Qd5 16.Bc3=) 15.Nd5= Rd5 16.Qc4 (16.Qb3 Qd6=) 16...Ra5 (16...Qe6!?=+) 17.d5+= Nb8 (17...Nd8 18.Nh4 Bd1 19.Rfd1+=) 18.Nd4 (18.a3 Ba3 19.Qb3 Bf3 20.Bf3 Bb4+–) 18...Bg6= 19.Nb3 (19.Bc2 Bc2 20.Nc2 Bd6+=) 19...Ra6 20.Bc2 Ba3 21.Bc3?? Rb6 22.Ba5 Na6?? 23.Bb6+– ab6 24.Bd3 Bd3 25.Qd3 Qe5 26.Rad1 Bd6+/– 27.g3 Nb4 28.Qd2 Ra8+= 29.Nc1 h5 30.h4 Qf5 31.Qe2 Re8 32.Kg2 Re5 33.Qf3 Qg6 34.a3 Rf5+= 35.Qe2 Nd5 36.Qd3 Qg4 37.Ne2 Nf6 38.Nf4 Bf4 39.ef4 Ra5 40.Qd8+– Kh7 41.Qc7 Ne4 42.Rd3 Qg6 43.Re3 f5 44.Qb7 Rb5 45.Rfe1 Rb2 46.Re4 fe4 47.Qe4 Qe4 48.Re4 Ra2 49.Re6 Rb2 50.a4 Kg8 51.Re5 g6? 52.Rb5 (52…Ra2 53.Rb6 Ra4 54.Rg6 Kh7 55.f5+–) 1–0. Melich,Jindrich (2160) – Siktanc,Petr, CZE–chT1b, 1997.

11.Nc3 Nb6 (11...Rad8 12.Nd5 Rd5 13.d4=) 12.d4= Bc3 (12...Rad8 13.a3 Ba5 14.Qc2=) 13.Bc3 Nd5 14.Bd2 Rad8 15.Rb1 Bc8 (15...Rb8 16.Qc2=) 16.Qb3 (16.Qc2 Ndb4 17.Bb4 Nb4+=) 16...Nf6 (16...Bf5 17.Rb2 Be4 18.a4= (18.Qb7? Rb8-+)) 17.Bb5 Bd7 18.Rfc1 a6 19.Bd3 Bc8 20.a4 (20.Ba6 Bf5 21.Bb7 Bb1 22.Qb1 Na7+-) 20...Ne4 21.Be1 Na7? (better 21...Nf6!?+=) 22.Be4 Qe4 23.Rc7 The mate threat is Qxf7. 23...Rd5 (23...Rd7!? 24.Rd7 Bd7 25.Qb7 Bc6+/-) 24.Rf7! Be6 (24...Kf7 Decoy to f7 25.Ng5 Theme: Double Attack) 25.Rf4 (25.Rb7?! Rb5 26.Rb5 Bb3 27.R5b3 Nc6+-) 25...Qg6 26.Qb7 (26.Qb7 Rd7 27.Qe4+-) 1-0. Kwiek,Janusz - Bagrowski,Z, corr ch35-Poland, 1992.

11.d3 Rad8 12.e4 (12.Nd4 Ne3 13.Nc6 bc6 14.fe3 Qe3 15.Rf2–+) 12...Nf4–+ 13.Nbd2 Bc5 (better is 13...Nd3!? 14.Bd3 Rd3 15.Qc2–+) 14.h3 Bf5 15.Ne1 Bd4 16.Bd4 Nd4 17.Bf3 Bc8 18.Nb3 b6 19.Nd4 Rd4 20.Qb3 Ba6 21.Qc3 c5 22.Rd1 Red8 23.a4? (23.Qc1 Nd3 24.Nd3 Bd3–+) 23...Ra4 (better is 23...Bd3!? 24.Nc2 Bf1 25.Nd4–+) 24.Qc2 Rad4 25.Be2 Ne2 26.Qe2 Qd7 27.f3 Bd3 28.Nd3 Rd3 29.Rd3 Qd3 30.Qd3 Rd3 31.Ra1 a5 32.Rb1 Rd6 33.e5 Rc6 34.Kf2 c4 35.Ke2 c3 36.Kd3 c2 37.Rc1 Kf8 38.f4 Ke7 39.g4 g6 40.h4 a4 41.Rc2 Rc2 42.Kc2 b5 43.Kb2 b4 44.Ka2 (44.Kc2 Ke6 45.Kd3–+) 44...Ke6 45.Kb2 f6 (better is 45...Kd5 46.Kc2 Ke4 47.g5 Kf4 48.Kd3–+) 46.ef6 Kf6 47.Kc2 a3 48.Kb3 Ke6 49.Kc2 Kd5 (50.f5 gf5–+) 0–1. hal1958 – chessnuts, HCL–E933 playchess.de, 2003.

11.d3 Ne3! 12.fe3 Qe3 13.Rf2 Bf3 14.Bf3 (14.gf3 Bc5 15.Qf1 Qe2-+ (15...Qf2?! 16.Qf2 Bf2 17.Kf2-/+) 16.d4 Qf1-+ -4.03) 14...Bc5 15.Qf1 (15.d4 Nd4 16.Nd2-+ Nb5-+ -4.06) 15…Qf2 (15...Qf2 16.Qf2 Re1) 0-1. Reussner,Hans_Dieter - Leisebein,Peter, DESC, 2001.

11.d4 a6 12.a3 Bd6 13.Nc3 Nc3 14.Bc3= Ba3 15.d5 Bf3 16.Bf3= Nd8 17.Qb3 Bd6 18.Ra4 f6 19.Re4 Qf7 20.Rh4 b6 21.Qc2 g6 22.Qb2 Nb7 23.Bf6+= Nc5 24.Rd1 a5= 25.Bd4 Nd7 26.Be2 a4 27.Bb5 a3 28.Qa1 Re7 29.Bc3 Nc5 30.Qb1 a2= 31.Qc2 Be5 32.Be5 Re5 33.Ra1 Qf6 34.Rf4 Rf5 35.Ra2 Ra2+= 36.Qa2 Rf4 37.ef4 Qd6 38.g3 Kg7 39.Qa1 Qf6 40.Qe5+– Qe5 41.fe5 Nb3 42.f4 Nd4 43.Bd3 c6 44.dc6 Nc6 45.Kf2 Kf7 46.Ke3 Ke7 47.h4 Na5 48.g4 Nb3 49.f5 Nc5 50.fg6 hg6 51.Bg6 Ke6 52.Kf4 Ke7 53.h5 Ne6 54.Kf5 Nd4 55.Ke4 Ne6 56.h6 Kf8 57.Kf5 Nd4 58.Kf6 (58.Kf6 Kg8 59.g5+–) 1–0. Labahn,Wolfgang (2265) – Juelich,Thomas, NRW–Liga I, 1994.

11.d4 Nf6 12.a3= Bd6 13.h3 Bf5 14.Re1 Rad8 (14...Ne4 15.Qb3=) 15.Nbd2 Ne4 16.Rc1? (16.Qb3 Rb8=) 16...Ba3 (16...Nf2!? 17.Qb3 Ne4-/+) 17.Ba3=+ Qa3 18.d5? (18.Ne4 Be4 (worse 18...Re4 19.Bd3+/-) 19.Ng5 Bd5=+) 18...Nc3?? (better 18...Rd5 19.Bc4 Rd7-+) 19.Rc3=+ Qc3 20.dc6 Annihilates a defender: c6 20...Qc6 21.Nd4 (21.Qa1 a6=) 21...Qf6 (21...Qc3 22.Bf3 Bc8 23.Ne4 Re4 24.Be4=) 22.Nb5 (22.Qc1 c6=) 22...Rd7 (22...c5 23.Qc1 a6 24.Nc3-/+) 23.Qc1=+ (23.Na7? Qb2 24.Bb5 c6-+) 23...Red8 (23...Qg6 24.Kh1=+ (24.Nc7 Bh3 25.Bf3 Rc8-+)) 24.Nf3 (24.Nd4 Bg6=) 24...Qb6 (24...a6 25.Nbd4=+ (25.Nc7? Rc8-+)) 25.Qa3 (25.Nc3 a5=+) 25...a6 26.Nbd4 Be4 27.Ne5 (27.Nd2 c5 28.Ne4 cd4 29.ed4 Rd4=) 27...Rd5 (27...Qd6 28.Qd6 Rd6 29.f3-/+) 28.Nf7 (28.Qe7!? Qf6 29.Nec6 bc6 30.Qe4+=) 28...Kf7-/+ 29.Bc4 c5 (29...Qd6 30.Qd6 R8d6=+ (worse 30...cd6 31.f3 Ke7 32.fe4+/-)) 30.Nb3?? (better 30.f3!? Kg6 31.fe4+/-) 30...Kf8 (30...Qb4!? 31.Qb4 cb4-+) 31.Bd5 Bd5 (31...Rd5 32.f3 Bc2 33.e4-/+) 32.Qc5 (32.Nc5!? Kf7 33.e4+=) 32...Qc5=+ 33.Nc5 Ra8 (33...Ke7 34.e4 Kd6 35.Nd3=+) 34.e4 Bc6 35.f3 (35.Ne6 Kf7 36.Ng5 Kg8=+) 35...a5=+ 36.Kf2 b6 (36...a4 37.Ke3=+) 37.Ne6= Kf7 38.Nd4 (38.Ng5 Kf6 39.f4 a4=) 38...Bd7 (38...Be8 39.Rb1 Ra6 40.Rc1=) 39.Rb1 (39.e5 Ke7=) 39...Rb8 40.Nb3 (40.f4 b5=+) 40...a4 41.Nc5 Bc6 (41...Be8 42.Na6 Rb7 43.Nb4=+) 42.Na6 Rb7 43.Nb4 Bb5 (43...Be8 44.Ke3=) 44.Nd5 (44.Ke3 g5=) 44...Bd3=+ 45.Ra1 b5 46.Ke3 Bc2 (46...Bc4 47.Kd4=+) 47.Kd2 (47.Nb4 Bb3=+) 47...Bb3 48.Nc3 (48.Nb4 Rd7 49.Kc3 Rc7 50.Kb2 Ke6-/+) 48...Rd7-/+ 49.Ke3 Bc4 50.Na4? (50.Kf4 Ke6-/+) 50...ba4 (better 50...Ra7-+) 51.Ra4-/+ Bb5 52.Ra2 (52.Rb4 Bf1 53.Kf2 Ba6-/+) 52...Bf1 (52...Ke6 53.Rb2 Bc4 54.Rc2-/+) 53.Kf4 (53.f4 Ke6=+) 53...Bc4 54.Rc2 Rd4?? (better 54...Be6-/+) 55.Ke5+- Bb3 (55...Rd8 56.Rc4 Re8 57.Kd4 Rd8 58.Ke3 Rd1+-) 56.Rc7 (56.Rc7 Kg6 57.Kd4+-) 1-0. Wall,Bill - Friedrichsen,Jim, Guam, 1974.

11.d4 Bg4 12.Nbd2? (better is 12.Qc2=+) 12...Ne3!–+ 13.fe3 Qe3 14.Rf2 Bd2 15.d5? (better is 15.Bc4 Bf3 16.Qf3 Qf3 17.Rf3–+) 15...Bf3 16.Bf3 Be1 17.Qe2 (17.Qe1 Qe1 18.Re1 Re1 19.Rf1 Rf1 20.Kf1 Ne7–+) 17...Bf2 18.Qf2 Qf2 19.Kf2 Nb4 20.Rd1 (20.Bc3 Nd3 21.Kg3 a6–+) 20...c6 (better is 20...Na2!? 21.d6 cd6 22.Rd6–+) 21.d6 (21.dc6 Rac8–+) 21...Rad8 (better is 21...Na2!? 22.d7 Red8 23.Be5–+) 22.a3 Nd5 (22...Na6!? 23.Bg4–+) 23.Bd5 cd5 24.Rd5 f6 25.a4 Kf7 26.Ba3 Re5 27.Rd4 Ke6 28.Bb4 (28.Kf3 b5–+) 28...a5 (29.Ba3 b5 30.ab5 Rb5–+) 0–1. Janecky,J – Diener,Rudolf, corr ICCF T–625–19, 1975.

11.h3 Be6 12.Nd4 Nd4 13.Bd4 –/+.

12.Qa4 Be6 13.Bb5 Nb6 14.Qf4 =.

12.Qa4 Bf3 13.Bf3+= (13…Qd6 14.Qb5=). Kern,Guido (2410) – Rowland, Hessen clubgame, 1997.

12.Qa4 Bf5 13.Rc1 Bb6 14.h3 Rad8 15.Nc3 h6 16.Bb5 Nc3 17.Bc3 Rd5 (17...Be4 18.Ne5 Ne5 19.Qe4= (worse is 19.Be8 Nd3 20.Bb5 Nc1 21.Rc1 Bc5+=)) 18.Bc4 (18.Bc6 bc6 19.Nd4 Bd3+=) 18...Rd6= 19.Bb3 Qd7 20.Bc2 Bc2 21.Qc2 Rg6 22.Kh1 Qd5 23.a4 a6 24.Qa2 Qa2 25.Ra2 Bc5 26.Bg7 Be3 27.fe3 Kg7 (27...Rg7? 28.Rb2 f6 29.Rb7+–) 28.Rb2 Rb8 29.Nh4 Rf6 30.g4 b5 31.Nf5 Kf8 32.ab5 ab5 33.d4 Ne7 34.Ne7 Ke7 35.Rc7 Kd6 36.Rc5 Rf3 37.Kg2 Re3 38.Rbb5 Rb5 39.Rb5 Rd3 40.Rb6 Ke7 41.Rh6 f6 42.Rh7 Ke6 43.Rh5 Rd4 44.Rf5 Kf7 45.Kg3 Rd3 46.Rf3 Rd5 47.h4 Kg6 48.Rb3 f5 49.Rb6 Kg7 50.g5 Rd4 51.Rh6 Re4 52.Rd6 Rc4 53.Rb6 Rd4 54.Ra6 Re4 55.Rf6 Re3 56.Kg2 Re4+/– 57.Rh6 Rf4 58.Kg3 Re4 59.Ra6 Rb4 60.Rc6 Ra4 61.Re6 ½–½. Buczinski,Henryk (2200) – Kokorin,Vladimir Nikolaevic (2230), VWC4pg26, 2011.

12.Qa4= Bh5 13.Qb3 Qd6 14.Nc3 (14.Qb7? Rab8 15.Qa6 Rb6–+) 14...Rad8 15.Nd5 Qd5 16.Qd5 (16.Qb7? Rb8 17.Qa6 Rb2–+) 16...Rd5 17.d4 Kf8 18.Rfc1 f6 (18...a6 19.Bd3=) 19.Kf1 (19.Bc3 Bg6+=) 19...Bb6 (19...Bf7 20.Bd3+=) 20.a4 Na5 21.Ba3 Kf7 22.Rab1 Bg6 23.Rb2 Bf5 24.Nd2 Be6 (24...Rd7 25.Bc5+=) 25.Bb4 Rb8 (25...c6 26.Ne4 Rb8 27.Nd6 Ke7 28.Nb7 Kd7 29.Ba5 Rb7 30.Bf3+–) 26.Bf3+/– Rd7 27.Ne4 (27.Ke2 Bd5+/–) 27...Nb3 (27...Nc6 28.Nc5 Bc5 29.Bc5+/– (29.dc5?! Ne5=; 29.Rc5?! Nb4 30.Rb4 b6+=)) 28.Rcb1 Bc4 (28...Bd4 29.Rb3 Bc4 30.Ke1 Bb3 31.Rb3+– (31.ed4 Bc2 32.Rb2 Be4 33.Be4 Re8–+)) 29.Be2 Be2 30.Re2 Na5 (30...Re8 31.Ng3 Nd4 32.ed4 Bd4 33.Rd1+/–) 31.Ba5+– Ba5 32.Nc5 Rd6 33.Rb7 (33.Nb7?! Rb6 34.Rb6 Bb6=) 33...Rb6 34.Rc7 (34.Rb8 Rb8 35.Rc2 f5+–) 34...Kg8 35.Nd3 Rb1 (35...Rb3 36.Rc5 Bb6 37.Nc1+–) 36.Rc1 Rc1 37.Nc1 Kf7 38.Rc2 (38.d5 Rb1 39.Rc2 Ra1+–) 38...Rb4 39.Ke2 Ra4 40.Ra2 (40.Nb3 Bb6+–) 40...Ra2+/– 41.Na2 Ke6 (41...Bc7 42.h3+/–) 42.Kd3 (42.e4 Bc7+/–) 42...Bc7 43.h3 f5 (43...a5 44.Kc4+/–) 44.f3+– g6 (44...a5 45.Nc3+–) 45.e4 Bf4 (45...a5 46.Nc3+–) 46.Nc3 Bg3 (46...a5 47.Na4+–) 47.Kc4 1–0. Mehlhorn,U – Schwertel,G, M–357–D, 2001.

12.Qa4 Bh5 13.Rc1 Bb6 14.Nc3 (14.Bb5 Bf3 15.gf3 Rab8=) 14...Nf6 (14...Rad8 15.Nd5 Rd5 16.d4=) 15.d4 Rad8 16.Nh4 (16.Bb5!? Bf3 17.gf3+=) 16...Be2 (16...Nd4!? 17.ed4 Be2-+) 17.Ne2=+ Ne4 (17...Ng4!? 18.Nf5 Qf6=+) 18.Nf5= Qg5 19.Neg3 h5 (19...Nf2 20.Kf2 g6 21.h4=+) 20.h4 (20.Ne4 Re4 21.Ng3 Rg4=) 20...Qg6 (20...Qf6 21.Ne4 Re4 22.Ng3 Rh4 23.Qc2=+) 21.Qd1 Nf6 (21...Rd5 22.Ne4 Re4 23.Ng3 Rh4 24.Qf3=+) 22.Qf3 Ng4 (22...Rd5 23.Bc3=) 23.Rc2 Ne7 24.Rac1 c6 25.Ne7 (25.e4 Nf5 26.Nf5 Nh6=) 25...Re7= 26.Nf5 Ree8 27.e4 f6 28.Bc3 (28.d5 cd5 29.ed5 Ne5=+) 28...Qf7 (28...Nh6 29.Nh6 Qh6 30.Rd1+=) 29.a4 (29.Rd2 g6 30.Ng3 Bc7=) 29...Rd7 (better 29...g6!? 30.Ne3 Qe7=+) 30.a5+= Bc7 Black launches an attack 31.g3 (31.a6!?+=) 31...Qe6= 32.Re1 (32.a6 g6 33.ab7 gf5 34.ef5 Qf7-/+) 32...g6=+ 33.d5 Ne5 (worse 33...cd5 34.ed5 Qf7 35.Re8 Qe8 36.Nd4+/-) 34.Qg2 (34.Be5 Qe5 35.Ne3 cd5 36.ed5 Ba5=+) 34...cd5-/+ 35.Nd4 Qa6 (better 35...Qf7 36.ed5 Rd5-/+ (worse 36...Qd5 37.f4=+)) 36.Nb3? (better 36.ed5 Qc4 37.Ba1=) 36...Qd3-+ 37.Rec1 Nf3 (37...Qe4?! 38.Nc5 Qg2 39.Kg2-/+; 37...de4?! 38.Be5 Re5 39.Nc5 Rc5 40.Rc5=+) 38.Kh1 de4 (38...Qe4? 39.Nc5 Qf5 40.Nd7+-; 38...Re4 39.Nc5 Qc4 40.Qf3 Qc5 41.Qf6+-) 39.Na1 (39.Qh3 Rd5 40.Kg2 Ne5-+) 39...Be5 (39...Red8 40.Qh3 Qa6 41.Qf1-+) 40.Qf1 (40.Be5 Re5 41.Qh3 f5-+ (41...Ra5?! 42.Qe6 Kg7 43.Rc8-+)) 40...Red8 (40...g5 41.hg5 fg5 42.Bb2-+) 41.Be5 Ne5 (worse 41...fe5 42.Kg2-+) 42.Rc3 Qd5 (42...Qf1 43.Rf1 Rd1 44.Rc1 Rc1 45.Rc1-+) 43.Nb3 e3 44.Qg2 (44.f3 Nf3 45.Re3 Nh4 46.Kg1-+) 44...Qd1! 45.Rd1 (45.Kh2 e2 46.Nc5 e1Q 47.Nd7 Ng4 48.Kh3 Nf2 49.Kh2 A) 49...Qd7?! 50.Re1 Qf5 A1) 51.Qb7 Ng4 52.Kh1 Qf2 (52...Qa5?! 53.Rec1 Nf2 54.Kg1 Nh3 55.Kf1+=) 53.Qb3 Kg7 54.Qa2 Qa2 55.Rc2 Qc2 56.Re7 Kf8 57.Rf7 Kf7 58.Kg1 Rd1; A2) 51.Rec1=; B) 49...Ng4 50.Kh3 Qc1 51.Rc1 Qc1-+) 45...Rd1 46.Qg1 (46.Kh2 Ng4 47.Kh3-+) 46...ef2 47.Qd1 (47.Qf1 Rf1 48.Kg2 Ng4 49.Nd2 Rg1 50.Kf3 Rd2 51.Rc8 Kf7 52.Rf8 Kf8 53.a6 f1Q 54.Ke4 Qf5) 47…Rd1 (47...Rd1 48.Kg2 f1Q 49.Kh2 Qh1) 0-1. Geisensetter,Kurt - Ziese,Gerhard, corr DDR-ch M794, 1986.

12.Qa4 Bh5 13.Rc1 Rab8=.

12.Qa4 Bh5 13.Nc3 Nc3 14.dc3 Rad8 (14...Bb6 15.c4=) 15.Rad1 (15.Qb5 Bg6=) 15...Qf6 Attacks the isolani on c3 16.Nd4?? (16.Qb3 Bb6=) 16...Be2?? (better 16...Rd4 17.ed4 Be2-+ (17...Re2?! 18.Qb5-/+)) 17.Ne2= Bb6 18.Nd4 (18.Rd8 Rd8 19.Rd1 Rd1 20.Qd1 Ne5=) 18...Ne5=+ 19.Qb3 (19.c4 Qh4=+) 19...Qg6 (19...c5 20.Ne2 c4 21.Qa4-/+) 20.Kh1 (20.Qa4 c5 21.Nb3 Nd3=+) 20...Ng4 (better 20...c5!? 21.Ne2 Rd1 22.Qd1 Rd8-/+) 21.h3 Nf6 22.a4 a5 23.c4 Ne4 24.Nf3 Nc5 25.Qa2 (25.Qb5!?=+) 25...Qc2-/+ 26.Rc1 (26.Ra1 Nb3 27.Rab1 Re4-/+ (27...Qc4 28.Bd4+/-)) 26...Qa4 27.Qb1 Qb3 (27...Nd3 28.Rc2-+) 28.Qa1 f6 (better 28...Qd3 29.Rb1 Ne6-/+) 29.Bf6? (better 29.Bd4-/+) 29...gf6-+ 30.Qf6 Rd6 31.Qg5 Rg6 32.Qd5 Kh8 33.Ne5 Rg7?? (better 33...Rf6-+) 34.Nf7= Rf7 35.Qf7 Qb2?? (better 35...Qa4=) 36.Qe8+- (36.Qe8 Kg7 37.Qe7 Kh6 38.Rcd1+-) 1-0. carlos78 (2195) - pacal56 (2150), Rated Blitz game, lichess.org, 2014.

12.Qa4 Bh5 13.Nd4 Be2+= 14.Ne2 Qe4 (14...Rad8 15.Nd4 Nd4 16.Qd4+=) 15.Qb3 (15.Qe4 Re4 16.Nbc3 Bc3 17.Nc3 Nc3 18.Bc3 Rd8=) 15...Bb6 (15...Qe6 16.Qc2+= (16.Qb7?? Rab8 17.Qa6 Rb2–+)) 16.Ng3 (16.Nbc3 Nc3 17.Bc3 Rad8=) 16...Qe6 17.Nc3 Nc3 18.Qc3 Qe5 (18...f6 19.d4=) 19.Qc2 Qd5 20.Qc3 Qe5 21.d4 Qa5 22.Qc4 Rad8 23.Rad1 Qd5 24.Qc2 Qg5 25.Rd2 Qg6 26.Qg6 hg6 27.Rfd1 Na5 28.Rd3 Nc4 29.Ba1 Nd6 30.Kf1 Ne4 31.Ne2 Rd5 32.f3 Nf6 33.e4+= Rd7 34.h4 Red8 35.d5 Bc5 36.g4 Bb6 37.Nf4 Ne8 38.e5 Re7 39.Kg2 Ba5 40.g5 Bb6 41.Kg3 a5 42.Kg4 a4 43.h5 gh5 44.Nh5 Ra8 45.g6 Ra5 46.gf7 Rf7 47.Nf4 Rc5 48.Ng6 Rc4?? 49.f4 Rd7 50.Rh1 (50.Rh1 Kf7 51.Kg5 Rd5 52.Rd5+–) 1–0. Mauersberger,Hermann (2000) – Herrmann,Markus (2005), Leipzig VfB op, 2008.

12.Qb3 Be6 13.Qb7+= Rab8 14.Qc6 Rb2 15.Nd4 Qd7 16.Qc1 Rbb8 17.a4 (17.Qc2 Rb7+/-) 17...c5 (17...Rf8!?+=) 18.Ne6 (18.Qc5?! Bb6 19.Qa3 Bd4 20.ed4 Nf4+=) 18...Qe6 19.Qc5 Bb6 20.Qa3 Bd4 21.ed4 Qe2 22.Nc3 Qe6 23.Qa2 Rbd8 24.Rab1 Qc6 25.Nd5 Qd5 26.Qd5 Rd5 27.Rb4 g6 28.Rc1 (28.Rfb1 a5 29.Rb8 Rb8 30.Rb8 Kg7+/-) 28...Red8 (28...a5!? 29.Rbc4 Re4+=) 29.Rb7+/- Rd4 30.Ra7 Rd2 31.g3 R8d5 32.Rc8 Kg7 33.Rcc7 Rf5 34.f4 Ra2 35.Re7 h6 36.Re5 (36.h3 g5 37.Re5 Rf6+=) 36...Rf6+= 37.Kf1 Rh2 38.Re2 Rh1 39.Kg2 Ra1 40.Kh3 Rf5 41.Re5 Re5 42.fe5 Re1 43.Ra5 Kf8 44.Rb5 Re3 45.a5 Ra3 46.Rb8 (46.Rd5!?+=) 46...Ke7= 47.Rb5 ½-½. PeterRs - ST_KAOURAS, ChessWorld.net, 2009.

12.Nc3 Bc3 13.dc3 Nf4 14.Bb5-/+.

12.Nc3 Nc3 13.Bc3= Bc3 14.dc3 Ne5 15.Ne5 Be2 ½-½. Dziel,Jaromir - Laber,Seweryn, corr 1AMM Poland, 1991.

12.Bc4 Rad8 13.Bd5 Rd5 14.h3 Bc8 15.Nc3 Rd3 16.Ne1 Rdd8 17.d4 Qd6 18.Qf3 Qg6 19.Rd1 Bf5 20.g4 Bc3 21.Bc3 Be4 22.Qe2 Bd5 23.f3 f5 (23...Qe6!? 24.e4 Bb3–+) 24.Ng2 fg4 25.hg4 Qf7 26.Qf2 Ne7 27.e4 Bc4 28.Rfe1 c6 29.Qg3 Ng6 (29...Bb3 30.Rd2=) 30.f4+= Qc7 31.e5 c5 32.Qf2 (32.f5 Ne7+=) 32...cd4 33.Bd4 b6 34.Bb2 (34.f5 Rf8 35.Qc2 Ne7+=) 34...Qe7 (better is 34...Rd1!? 35.Rd1 Bb3=) 35.Rd8 Rd8 (35...Qd8!? 36.f5 Ne7+/–) 36.f5+/– Nf8 37.e6 (37...Rb8 38.g5 Be6 39.g6 hg6 40.fe6 (< 40.Re6 Ne6 41.fe6 Qe6=+) 40...Ne6 41.Qd4+–) 1–0. Neri,Enzo – de Visser,Arno, corr ICCF TT, 2003.

12.d4 Ne3 13.fe3 Qe3 14.Rf2 Bf3 15.gf3 Bb6–/+ 16.Kf1 Bd4 17.Bd4–/+ Nd4 18.Ra2 Rad8 19.Rd2 c5 20.Bc4 b6 21.Rd3=+ Qf4 22.Nc3 Nc6 23.Bd5 Qf5 24.Be4= Qh3 25.Kg1 Nd4 26.f4 Qe6 27.f5 Qh6 28.Qf1 Qh4 29.Rh3 Qf6 30.Qg2 Qe5 31.a4 c4 32.Qf1 Qc5 33.f6 g6 34.Rg3 Nb3 35.Qe2 Nd2 36.Re3= Ne4 37.Re4 Re4 38.Ne4 Qd4 39.Qd2 Qd2 40.Nd2 Rd4 41.Re2 h6 42.Ne4 g5 43.Nc3 Rd3 44.Rc2 a6 45.Kf2 g4 46.Kg2 Kh7=+ 47.Ne4 Rd4 48.Nf2 h5 49.Rb2 Rd6 50.Ne4= Rc6 51.Nc3 Rf6–/+ 52.Nd5 Rd6 53.Nb6? c3–+ (53...c3 54.Rb1 c2–+) 0–1. Dowd,Steven – Fuchs,Walter, corr SOK–87–13, 1987.

13.Bb5 Bf3 14.Bc6 bc6 15.Qa5?? (better is 15.gf3 Bb6 16.Rc1=) 15…Qg4 (16.g3 Qh3 17.Qd5 Qg2) 0–1. Echtwelzo – Eaglewingz, HCL–M412 playchess.de, 2003.

13.Rc1 Bb6 14.Bb5 Bf3 15.Bc6 bc6 16.gf3=.

13.Rc1 Bb6 14.Bb5 Bf3 15.gf3 Nde7 16.Qg4 Qg4 17.fg4 a6 18.Ba4 Red8 19.d4 Na5 20.Nd2 Rac8 21.Nb3 Nb3 22.Bb3 c5 23.dc5 Rc5 24.Rc5 Bc5 25.Rd1 Rd1 26.Bd1 Nc6 27.Bf3 g6 28.Kf1 Kf8 29.Ke2 Ke7 30.Bd5 Nd8 31.g5 Kd6 32.e4 b5 33.f4 Ne6 34.Kf3 a5 Black prepares the advance b4 35.h4 a4 36.Kg4 White prepares f5 36...b4 37.ab4 Bb4 38.Ba2 a3 39.Bf6 Kd7 40.f5 Nc5 41.Bf7 Ne4 42.fg6 Nf6 43.gf6 hg6 44.Kg5 (44.Bg6?? a2 45.Bf5 Kd8-+) 44...Be1 45.Kg6 (45.Bd5!? Ke8 46.f7 Kf8 47.Kg6 Bh4 48.Kf5=) 45…Bh4=+ ½-½. Caroff,F (2100) - Bargan,Se (2355), 27th Open Cappelle la Grande FRA, 2011.

13.Rc1= Bb6 14.Rc4!? Bf5 15.Nc3 =.

13.Rc1= Bb6 14.Rc6 Bf3=+ (worse 14...bc6 15.Ne5 Re5 16.Bg4+=) 15.Bb5 (15.Bf3 bc6 16.Nc3 Qe6=+) 15...a6 (better 15...bc6 16.Bc6 Qg4 17.Qg4 Bg4 18.Bd5 Rab8-+) 16.Rg6= ab5 17.Rg7 Kf8 18.Qh4 Be4 19.Qh6 Ke7 20.Qg5?? (better 20.Rf7! Kf7 21.Qg7 Ke6 22.Qe5 Kf7 23.Qg7 Ke6 24.Qe5 Kf7 25.Qg7=) 20...Kd6-+ 21.Nc3 Nc3 22.Bc3 Qf5 23.Bb4 (23.Qf5 Bf5 24.Rf7 Bg6-+) 23...c5 24.Qh6 (24.Qg3 Kd7 25.f3-+) 24…Re6 (24...Re6 25.Bc5 Bc5-+) 0-1. Chkhan,Viktoria (2055) - Monina,Polina (1970), RUS-ch U16 Girls, 2009.

13.Nc3 Nb6 14.Qc2 Bf5 15.d3 Nc4 16.Nh4 Nb2 d3 seems the pivot of the position 17.Nf5 Bc3 (17...Qf5 18.Qb2 Nd4 19.ed4 Bc3 20.Qc3 Re2 21.Qc7+=) 18.Qc3+= Qf5 19.Qb2 Rab8 20.Rfc1 Qd7 21.Qc2 (21.d4 Ne7+=) 21…Qe7 ½-½. Poschmann,Hans (2255) - Fedorko,Andrew (2055), IECC, 1999.

13.Rd1 Rad8 14.Nc3 Bf3 (14...Nb6 15.Qf4=) 15.Bf3 Bc3 16.Bc3 (16.dc3 Ne5 17.Qd7 Nf3 (17...Nd7?? 18.Rd5 Ne5 19.Rad1 Nf3 20.gf3 Rd5 21.Rd5+–) 18.gf3 Rd7=) 16...Ne5 (worse is 16...Nc3 17.dc3 Qe6 18.Rab1 Rd1 19.Rd1+/–) 17.Qe4 (17.Qa7? Nf3 18.gf3 Qh3–+) 17...Nf3 18.Qf3 c5 19.Bb2 (19.Rab1 b6=) 19...Qb5+= 20.Rab1 Qd3 21.Rbc1 Rc8 22.Qg4 f6 23.Qa4 Re7 24.g3 (24.Qc2 Qc2 25.Rc2 b5=) 24...a6 25.Qc2 Qc2 26.Rc2 Nb6 (26...b5 27.d3+=) 27.d3 Na4 28.Ba1 (28.Kf1 Kf7=) 28...b5 29.Kf1 Kf7 30.Ke2 h5 31.f3 Rce8 32.e4 Rd7 33.Ke3 Rc8 34.Rdc1 Rcd8 35.Rd1 Rc8 36.h4 Ke6 37.Ke2 Rcd8 38.Ke3 ½–½. Muri,Heinrich (2405) – Cimicki,Dariusz (2385), III. Danube Cup–Paul Darmogray Memorial, 2008.

13.h3 Bf5 14.Nc3 (14.Bb5 a6 15.Bc6 Qc6 16.Qc6 bc6=) 14...Nb6 15.Qf4 Rad8 The backward pawn on d2 becomes a target 16.Rfc1 (16.Bb5 Bc3 17.dc3 Re4=) 16...a6 17.Qg3 Bg6 18.d4 Qe7 (18...Qd6 19.Qd6 Rd6 20.Rd1=) 19.Nh4 (19.Nd1 Rd6=) 19...Nd4 20.Ng6 Ne2 (20...hg6 21.ed4 Bc3 22.Bc3 (worse 22.Rc3 Qe2 23.Rb3 Nc4-/+) 22...Qe2 23.Qc7=) 21.Ne2 Threatening mate... how? 21...hg6 (21...fg6 22.Rc7 Rd7 23.Rac1+=) 22.Rc7+= Nd7 23.Rc2 (worse 23.Rb7 Qe4 24.Rc7 Bc7 25.Qc7 Ne5=+) 23...Nc5 24.Nd4 Nd3 25.Bc3 Bc7 26.Qf3 Qd6 27.g3 (27.Qb7? Qh2 28.Kf1 Nf4-+) 27...Qd5 28.Qd5 Rd5 29.Kf1 Nc5 30.Rac1 Ne4 31.Be1 (31.Bb2 Be5+=) 31...Bb6 32.Nf3 (32.Ne2 Rd7=) 32...g5 (32...Bc5 33.Bb4 b6 34.Rb1=) 33.Rb1+= Re6 34.a4 Nc5 35.Rc4 Bd8 36.Rd4 Red6 37.Bb4 b6 38.Bc5 bc5 39.Rd5 Rd5 40.Ke2 (40.Rb8 Kh7+/-) 40...f5 (40...Kh7 41.Rb7 c4 42.Rf7+=) 41.Nd2 (41.g4 f4+/-) 41...Ba5 42.Rb8 Rd8 43.Rd8 Bd8 44.Kd3 Ba5 45.Nb3 (45.g4 fg4 46.hg4 Bd2 47.Kd2 Kf7+-) 45...Bb4 (45...Be1!? 46.Nc5 Bf2 47.Na6 Bg3+/-) 46.f3 Kf7 47.Kc4 g6 (47...Be1 48.Nc5 g4 49.hg4 fg4 50.fg4+-) 48.Nc5 a5 49.Nb3 Be1 50.g4 White gets the initiative 50...Ke6 (50...Kf6 51.Kb5 Bf2 52.e4+-) 51.Kb5 Bf2 52.Na5 Be3 53.Nc4 Bf2 54.Kc6 Be1 55.a5 Ba5 56.Na5 Ke5 57.Nb3 Kf4 (57...Ke6 58.Kc5 Ke5 59.Nd4+-) 58.Nd4 Ke5 59.Kc5 (59.Kc5 Kf4 60.Kd5+-) 1-0. Krasny,Henryk Jan - Luzuriaga,Norberto Horacio, corr SOK-98-132, 1998.

13.h3 Bh5 14.Rc1 a6 15.d3=.

13.Qb3 Nb6 14.d4 Be6 15.Qc2 Rad8 16.Bd3 h6 17.Rc1 Bg4 18.Nbd2 Nd5 19.Bb5 White gets strong initiative 19...Bd7 20.Nc4 Bb6 21.Ba4 Nf6 22.Rab1 Ne4 23.d5 Na5 24.Bd7+/– Qd7 25.Nfe5 Qd5 26.Rd1+– Qe6 27.Rd8 Rd8 28.Na5 Ba5 29.Qe4 f6 30.Qa4 (30.Qa4 fe5 31.Qa5+–) 1–0. b4_player – opponent, gamecolony.com, 2007.

13.Qb3 Nb6 14.d4 Be6 15.Qc2 Rad8 16.Bd3 h6 17.Nbd2 Nb8 18.Nb3+/– Bb3 19.Qb3 c6 20.Rfd1 Nd5 21.Rab1 Bc7 22.Bf5 b6 23.Rbc1 Nf6 24.Bd3 Ne4 25.Qc2 a6 26.a4 Nf6 27.Bf5 ½–½. Van Daatselaar,JB – Lacrosse,Marc, corr EM/H/067 ICCF Email, 2001.

13.Qb3 Nb6 14.d4 Be6 15.Qc2 Bg4 16.Nbd2 (16.Bc3 Bc3 17.Nc3 Rad8=) 16...Bd2 17.Qd2 a6 (17...Rad8 18.Qc2=) 18.a4 (18.Rfc1 Nd5=) 18...Nd5 (18...Qe6 19.Ng5 Qg6 20.Bg4 Qg5 21.Bf3+=) 19.Ba3 Qd7 (19...Qf6 20.Rfc1=) 20.Rfc1 Nf6 21.Rab1 (21.Qb2 Rab8=) 21...Ne4 (21...Rab8 22.Rb2=) 22.Qd1+= Nd6 23.Bd6 cd6 24.h3 (24.Qb3 Rac8+=) 24...Bf5 25.Bd3 Bd3 26.Qd3 h6 (26...Rac8 27.Ng5 g6 28.Qb3+=) 27.d5 (27.Rb6 Rec8+=) 27...Ne5 28.Ne5 de5 29.e4 The passed pawn on d5 will quickly become a dangerous weapon 29...Rac8 30.Rc4 (30.Rc8 Rc8 31.Qb3 b6+=) 30...Rc7 (30...Rc4 31.Qc4 Rc8 32.Qa2+=) 31.a5 (31.Rc7 Qc7 32.Qe3 Re7+=) 31...Rec8 32.Rc7 Rc7 33.Qb3 Exerts pressure on the backward pawn 33...Qc8 34.Qb2 f6 (34...Qe8 35.Qb6 Qc8 36.Kh2+=) 35.Qb3 (35.d6 Rd7 36.Qb3 Kh8+/-) 35...Rc1+= 36.Kh2 Rb1 37.Qb1 Qc5 38.f3 Qa5 39.Qb7 Qd2 (39...Qd8 40.Qa6 Qe7+-) 40.Qc7 (worse 40.Qa6 Qf4 41.Kg1 Qe3 42.Kf1 Kf8+-) 40...Qf4?? (40...g5 41.d6 Qf4 42.Kh1 Qd2+-) 41.Kh1 h5 (41...f5 42.d6 fe4 43.d7 ef3 44.d8Q Kh7 45.Qd3 e4 46.Qf4 fg2 47.Kg2 ed3 48.Qf5 Kh8 49.Qd3+-) 42.d6 h4 43.d7 (43.d7 Qg3 44.d8Q Kh7 45.Qa5+-) 1-0. Sakai,Kiyotaka - Hilton,Stephen, corr or01-013, 2001.

13.Bb5 Bb6 14.Qd1 Rad8 15.Nc3 Nc3 16.Bc3 h6 17.Ba4 Qc5 18.Bb2 Qf5 19.d4 Qg6 20.Rb1 Bg4 21.Rc1 Rd6 22.Bb5 a6 23.Be2 a5 24.a4 Bh3 25.Ne1 Bf5 26.Bb5 Re7 27.Ba3+= Nb4 28.Qb3 c6 29.Bc4 Bd8 30.Bb4+= ab4 31.Qb4 Rf6 32.d5 Rc7 33.dc6 Rfc6= 34.Qb5 Be7 35.Nd3 Bd6–/+ 36.Rc3 Rc4! 37.Rc4 Bd3 38.Rc7 Bb5 39.Rc8 Kh7 40.ab5 Qf5 41.Rd8 Be7 42.Re8 Qd7 43.Ra8 Qb5 44.g3 Kg6 45.Rd1 Qc6 46.h4 Kf5 47.Rb1 Kg4 48.Kh2 Qc2 49.Rf1 Bd6 50.Kg2 Bg3 51.Rf8 Be5 52.Re8 Qe2 53.Re5 Qf3 (53...Qf3 54.Kh2 Qh3 55.Kg1 Kf3 56.Rf5 Qf5 57.Kh2 Qg4 58.Rd1 Qg2#; 53...Kh4?! 54.Rh1 Kg4 55.Re4 Kf5 56.Rb4=+) 0–1. Bonetti,Shane – Viking (2440), ICC, 2002.

13.Bb5 Bb6 (13...a6 14.Bc6 Bc6 15.Qg4= (15.Qa5? b6 16.Rc1 Qd7-+)) 14.Qd1 (14.d3 a6 15.Bc6 Bc6=) 14...Rad8 15.Nc3 Bg4 (15...Nc3 16.Bc3 a6 17.Be2=) 16.h3 (16.d4 Qf6=) 16...Bh5 (16...Ne3 17.fe3 Rd2 18.Nd5 Be3 19.Kh1-/+) 17.g4 (17.d4 Nc3 18.Bc3 Qd6=) 17...Bg6=+ 18.Qc1 (18.Qb3 Nf6 19.d4=+) 18...Be4 (18...Ba5 19.Bc6 bc6 20.Nd5 cd5 21.Ne5=+) 19.Be2 (better 19.Ne4!? Qe4 20.Nh4=) 19...f5=+ 20.Ne4 Qe4 (20...fe4 21.Ne1-/+) 21.gf5 Qf5 The passed pawn on e3 will become decisive later 22.Kh2 Kh8 (22...Re7 23.Qc4=+) 23.Nh4 (better 23.Qb1!? Qe6 24.Ng5=) 23...Qe4-/+ 24.Rg1 Ne5 (24...Qh4?? 25.Bg7 Kg8 26.Bf6 Kf8 27.Bh4+-) 25.Bg4 (25.Ng2 Re7=+) 25...c6 (25...Nf6 26.Be5 Qe5 27.f4-/+) 26.f3=+ Qc4 (better 26...Qa4 27.Nf5 g6=+ (27...Ng4?? 28.Rg4 Qg4 29.hg4+-)) 27.Be5+= Qc1 28.Bg7 (28.Rgc1?! Re5 29.f4 Re7=) 28...Kg7 29.Rac1 Kf6 30.Ng2 (30.Rg2 Ba5+=) 30...Bc7 31.f4 (31.Kh1 Bd6 32.Rb1 Nb6+=) 31...Nb6 32.Rc2 Rd3 33.Ra1 Red8 Exerts pressure on the backward pawn (33...Bd6 34.a4+/-) 34.Raa2+/- Bd6 35.e4 Kg7 (35...Ba3? 36.Rc3 Rc3 37.dc3+-) 36.e5 Bc7 (36...Be7 37.Be2 R3d4 38.Kg3+/-) 37.Bf5 (37.Rcb2 R3d4+-) 37...R3d4 (37...Rf3 38.Rc3 Rc3 39.dc3+/-) 38.d3 White fights for the Initiative 38...Nd5 (38...Rf4 39.Nf4 Be5 40.Kg3+/-) 39.Rab2+- Rb8 (better 39...Bb6 40.Rc4 Ne7 41.Rd4 Rd4+-) 40.Kg3 (40.Be4!? Nf4 41.Nf4 Be5+-) 40...Rf4+/- 41.Nf4 Be5 42.Kf3 (42.Rb4 Ne3 43.Re2 Nf5 44.Kg4 Nh6 45.Kh5 Nf7+/-) 42...Nf4 (42...Bf4 43.Re2+=) 43.Rb4 Nd5 (43...Ng6 44.d4 a5 45.Ra4+= (45.de5?! Ne5 46.Kf4 ab4=+)) 44.Rh4+/- Nf6 (44...Kf6 45.Be4 (worse 45.Bh7 Rf8+/-) 45...Rh8 46.Bd5 cd5 47.Rc5+-) 45.Rg2+- Kf7 46.Bh7 Nh7 (46...c5 47.Rg5 Bd4 48.Bg6 Ke6 49.Bf5 Kf7 50.Rh6+-) 1-0. Van der Bosch,F - Van der Kooij,Jaap, corr NED-ch H, 1985.

13.Qc2 Rad8 14.Nc3 Nc3 (14...Bg4 15.Nd5 Rd5 16.d4=) 15.Bc3 Bc3 16.Qc3 Ne5 (16...Be6 17.Rab1 Bd5 18.d3=) 17.Ne5 (17.Qc7!? Bg4 18.Qe7 Re7 19.d4 Bf3 20.gf3+/-) 17...Qe5+= 18.d4 Qd6 19.Bf3 c6 20.Rfb1 Rb8 (20...b6!?+=) 21.Qa5+/- a6 22.Rb6 Rec8 (22...Bc8 23.Rd1+/-) 23.Rab1 Qc7 24.h3 h6 25.R1b2 Re8 (25...Ra8!?+/-) 26.Ra6 Qa5 27.Ra5 b5 28.Ra7 Red8 29.a4 b4 (29...Kf8 30.Kf1+-) 30.a5 Rbc8?! (30...Kf8 31.a6 Ra8 32.Rd7 Rd7 33.Bc6+-) 31.a6 (31.Rb4 Be6+-) 31...Be6 (31...Ra8 32.Rd7! Rd7 33.Bc6+-) 32.Rb7 (32.Rb4 c5 33.dc5 Rc5+-) 32...Bd5 (32...b3+-) 33.a7 Ra8 (33...Bf3 34.gf3 Ra8 35.R2b4+-) 34.Bd5 cd5 35.R2b4 Kf8 (35...Rf8 36.R4b5+-) 36.R4b6 (better 36.Rb8!? Ra7 37.Rd8 Ke7 38.Rd5 g6+-) 36...Ke8 (36...Re8 37.Rd7 Kg8 38.Rbb7+-) 37.Rc6 Rd7 38.Rb8 Rd8 39.Rb7 Rd7 40.Rcc7 Rc7 41.Rc7 Kf8 42.Rb7 Kg8 (42...Ra7 43.Ra7 Ke8+-) 43.Rb8 Rb8 1-0. carlos78 (2235) - pacalmisu (2220), Rated Blitz game, lichess.org, 2015.

13.Nc3 Nc3 14.Bc3 Bc3 15.dc3 =.

14.Qb7? Rab8 15.Qa6 Rb2–+.

14.Rc1 Bb6 15.Nc3 Be6 16.Qc2 Na5 17.Rab1 c6 18.Ng5 Bc4 19.Qf5+= Qe5 20.Qe5+/– Re5 21.Nf3 Ree8 22.d3 Be6 23.Na4 Nd7 24.Nb6 ab6 25.Nd4 Ba2 26.Ra1 Bd5 27.Bd1 Ne5 28.Bc2 Rad8 29.Rd1 f6 30.Bc3 c5 31.Nb5+/– Bf7 32.d4 cd4 33.ed4 Nec6 34.Rab1 Re2 35.Bd3 Re7 36.f3 Nc4 37.Kf2 Ne3 38.Re1 Nd5 39.Bd2 Re1 40.Re1 Na5 41.Be4 Nb3 42.Be3 Ne3 43.Ke3 Bc4 44.Rb1 Rd7 45.h4 g6 46.g4 Kg7 47.a4 Bf7 48.d5+– Nc5 49.Nc3 Rd6 50.Rb4 Na6 51.Rc4 Rd8 52.Rd4 Nc5 53.Bc2 Rd6 54.f4 h6 55.Rd1 Kf8 56.g5 hg5 57.fg5 fg5 58.hg5 Ke7 59.Kf4 Rd8 60.Ke5 Nd7 61.Kd4 Nc5 62.Re1 Kf8 63.Rf1 Ke7 64.Rf6 Nd7 (64...Ne6 65.Kc4 (< 65.Re6 Be6 66.Bg6 Bd7+=) 65...b5 66.ab5 Ng5 67.Rb6+–) ½–½. Muri,H – Polakovic,P, corr ICCF, 2002.

14.d4 Bb6 15.Qc2 Rad8 16.Nbd2 (16.Bd3 h6=) 16...a6 (16...Be6 17.Bb5=) 17.Bd3+= Bg4 18.Rfe1 Ba5 19.Rec1 Bh5 20.Ba6+/– Nd4 21.Nd4 Bd2 22.Qd2 ba6 23.Qa5 Qe4 24.Rc7 Rb8 25.Rc2 Qa8 26.Rac1 Bg6 27.Rd2 Ne4 28.Re2 Nd6 29.Nc6 Rbc8 30.Qd5 Be4 31.Qd6 Rc6 32.Rc6 Qc6 33.Rd2 Qb5 34.f3 Bg6 35.e4 f6 36.h3 Bf7 37.Bd4 Re6 38.Qg3 h6 39.Be3 Kh7 40.Qc7 Be8 41.Qc5 Qc5+/– 42.Bc5 g5 ½–½. Mehlhorn,U – Warzecha,H, BFM–226, 2001.

14.d4 Bb6 15.Nc3 Be6 16.d5 Na5=.

14.d4 Bb6 15.Nbd2 Be6 16.Qc2 Bd5 17.Rfe1 (17.Rfc1 Rad8=) 17...Rad8 18.Bd3 Ne4 19.Ne4 Be4 20.Be4 Qe4 21.Qe4 Re4 22.Rab1 f5 23.g3 (23.Kf1 Ba5 24.Rec1 f4+=) 23...h6 24.Bc3 Rd5 25.Nd2 Re6 26.Nc4 Nd8 27.f3 Rc6 28.Nb6 Rb6 29.Rb6 ab6 30.Rb1 Rd6 31.Kf2 Ne6 32.Ke2 Kf7 33.Rd1 Rc6 34.Kd3 Rd6 35.Rd2 b5 36.e4 Nd4 37.e5+/– Rd5 38.Ke3 c5 39.f4 g5 40.Bd4 cd4 41.Rd4 gf4 42.gf4+– Rc5 43.Rd7 Kg6 44.Rb7 Rc3 45.Kf2 Ra3 46.Rb5 Ra2 47.Kg3 Ra3 48.Kh4 Ra4 49.Rb6 Kg7 50.Kh5 1–0. Mehlhorn,U – Nogly,C, ML–088, 2001.

13.Qb5 Nb6 =.

14.Rc1 Re6 15.d4 =.

14.Rc1 Re7 15.d4 (15.Bb5 Nd8=) 15...Rd8 (15...a6 16.Nc3 Bc3 17.Bc3=) 16.Nc3 Nb6 (16...Nf4 17.Bc4 Be6 18.Bf1+=) 17.h3 (17.Bb5 Bd7=) 17...Bf5 18.Bb5 Nb8 19.g4 (19.Ne5 c6 20.Be2 N8d7 21.Nd7 Red7=) 19...Bc8 (19...Be6 20.Bd3=) 20.a4 (20.Na4 Bd7 21.Bd7 N8d7+= (21...Rdd7? 22.Nc5+-; 21...Red7? 22.Nc5+-)) 20...c6 (20...a6 21.Ba3 Re6 22.Bd3=) 21.Bd3 h5 22.gh5 Bh3 23.Ba3 (23.Ne2 Nd5=) 23...Ree8=+ 24.Ne4 Nc8 (24...Bg4 25.Nfg5 Rd5+/-) 25.h6+/- Be6 (25...Bg4 26.Nh2 Be6 27.h7 Kh8 28.Nc5+/-) 26.Nc5 (26.h7 Kh8 27.Nc5 b6 28.Ne6 Re6+-) 26...gh6+/- 27.Nb7 Rd5 28.Kg2 (28.Ne5 Nb6+/-) 28...Bc7+- 29.Rh1 Bg4 (29...Kg7 30.Rag1 Bg4 31.Kf1+-) 30.Rh6 White creates threats along the open h-file 30...Rh5 31.Rh5 Bh5 32.Rh1 Bg6 33.Bg6 fg6 34.d5 cd5 35.Bb2 Threatening mate... how? 35...Na6 (35...Kf8 36.Rh8 Ke7 37.Rh7 Kf8 38.Rc7 Na6+-) 36.Rh8 (36.Rh8 Kf7 37.Ng5 Ke7 38.Rh7 Kf8 39.Rf7 Kg8 40.Rg7 Kf8 41.Nh7) 1-0. Parry,Michael (2460) - Velker,Wim (2360), corr ICCF EM/M/A021 ICCF Email, 1997.

14.Nc3 Bc3 15.Bc3 Rd8 =.

14.Nc3 Nc3 (14...Bc3 A) 15.dc3 A1) 15...Ree8 16.Rfd1 (16.h3 Bh5 17.g3 Rad8 18.Rfd1 Nb6 19.Rd8 Rd8 20.Rd1) 16...Rad8 17.h3 Bh5 18.Kh2 Nf6 19.c4 Ne4 20.g4; A2) 15...Rd8 16.Rfd1 Ree8 17.h3 Bf3 18.Bf3 Nb6 19.Rab1 Nc4 20.Rd8; B) 15.Bc3 B1) 15...Nc3 16.dc3 Rd8 17.Rab1 b6 18.Rfd1 Rd1 19.Rd1 Kf8 20.h3; B2) 15...Rd8 16.Rfc1 (16.Rab1 b6 17.Bb2 Re7 18.Rbc1 Na5 19.h3 Bd7 20.g4) 16...Re6 17.d4 h6 18.Rab1 b6 19.Bd2 Bf5 20.Rb2; B3) 15...a6 16.Rfc1 (16.Rac1 Re6 17.Bb2 Nf4 18.Bc4 Bf3 19.gf3 Rg6 20.Kh1 b5) 16...Re6 17.Rab1 b5 18.d4 Bf5 19.Rb2 Rae8 20.Bd2) 15.Bc3 (15.dc3 A) 15...Rd8 16.Rfd1 (16.h3 Bf5 17.g4 Bg6 18.Rad1 Ree8 19.Kg2 h6 20.Kg3) 16...Ree8 17.Bb5 Bb6 18.c4 f6 19.h3 Bf5 20.Nd4; B) 15...Re6 16.Rfd1 (16.Rad1 Rg6 17.Rd2 Rd6 18.Rd6 cd6 19.Rd1 Rd8 20.h3) 16...Ree8 17.Rd5 a6 18.c4 f6 19.Nd4 Be2 20.Ne2; C) 15...Ree8 16.h3 (16.Rfd1 Rad8 17.Bc4 Bb6 18.Bd5 Rd7 19.c4 Na5 20.h3) 16...Bf5 17.Nd4 Rad8 18.Rfd1 Be4 19.f3 Nd4 20.cd4) 15...Bc3 (15...Re6 16.Rfc1 (16.Rac1 Re7 17.Ba5 Na5 18.d4 Nb3 19.Rc2 a5 20.h3) 16...Bc3 17.Rc3 Rf6 18.Rb1 Rb8 19.d4 Bf5 20.Rb2; 15...Rd8 16.Rfc1 (16.Ba5 Na5 17.d4 Re6 18.Rab1 Rb6 19.Rfc1 c6 20.Rb6) 16...Re7 17.d4 Bc3 18.Rc3 Rd5 19.Rb1 Na5 20.h3) 16.dc3 Re6 (16...Rae8 17.Rfd1 b6 18.Rd2 R4e6 19.Ng5 Rg6 20.Bg4) 17.h3 (17.Rab1 b6 18.Rfd1 Ne5 19.Nd4 Be2 20.Ne2) 17...Bf3 18.Bf3 Rd8 19.Rfd1 Red6 20.Kf1 Kf8 21.Ke2 Ke7 22.Rd6 Rd6 23.Rd1 (23.c4 Nd8=) 23...Rd1 24.Kd1 Kd6 25.Kc2 Kc5 26.Be4 (26.a4 Na5=+) 26...g6=+ 27.a4 Na5 28.g4 c6 29.g5 b5 30.ab5 cb5 31.h4 Nc4 32.Bf3 a5 33.Bg4 a4 34.Be2 Nd6 35.Bf3 Nf5 36.h5 Nd6 37.hg6 hg6 38.Kb2 Nc4 39.Ka2 Nb6 40.Kb2 Nd7 41.Be2 Ne5 42.Ka2 Nc6 43.Ka3 Nd8 44.Bd3 Ne6 45.f4 Ng7 46.Bb1 Nf5 47.e4 Ne3 48.Kb2 Nc4 49.Kc1 Kd6 50.Ba2 Kc5 ½-½. Baeckstroem,Mikael (2225) - Gavrijski,Dimitar (2140), corr ICCF WSTT/3/06/Final, 2009.

14.h3 Bd7 15.Nc3 Nc3 16.Bc3 Bc3 17.dc3 Rae8 18.Rfd1 R4e7 19.Rab1 Nd8 20.Rd2 Bc6 21.Nd4 Be4 22.Rbd1 a6 23.f3 Bc6 24.Nf5 Re5 25.e4 Ne6 26.Nd4 Ba4 27.Ne6 R5e6 28.Rb1 Bc6 29.Kf2 Re5 30.g4 Rc5 31.Rb3 f6 32.Bd3 Kf7 33.Ke3 h5 34.Kd4 Rce5 35.Rb1 Ra5 36.Ra1 Rd8 37.Ke3 Ke7 38.Bc4 Rd2 39.Kd2 b5 40.Bb3 hg4 41.hg4 Kd6 42.g5 Bd7 43.gf6 White fights for the Initiative 43...gf6 44.Kc2 Ke5 45.Rd1 Bc6 46.Kb2 f5 47.Bc2 fe4 48.fe4 Ke6 49.Rh1 Ba8 50.Rh6 Ke5 51.Rh8 Bb7 52.Rh5 Ke6 53.Bb3 Kd7 54.e5+/– Be4 55.Rg5 Bc6 56.c4 Kd8 57.Rg8 Ke7 58.c5 Bd7 59.Rg7 Kd8 60.e6 Be8 61.Bc2 b4 62.ab4 Rb5 63.Bf5 c6 64.Ra7 Kc8 65.Bd3 Rb4 66.Kc3 Ra4 67.Ra8 Kc7 68.Re8 Ra3 69.Kd4 Ra4 70.Ke5 (70.Ke5 Ra5 71.e7 Rc5 72.Kf6+–) 1–0. bambinik (2520) – k2_cult (2575), 2003.

14.h3 Bh5 15.Nc3 Bc3 (15...Nc3 A) 16.dc3 Rd8 (16...Ree8 17.Rad1 Rad8 18.Bd3 f6 19.g4 Bf7 20.Kg2 Rd6) 17.Rfd1 Ree8 18.Bd3 Rd6 19.c4 Red8 20.Bc2 Bf3; B) 16.Bc3 Bc3 (16...Rd8 17.Rfc1 Bc3 18.Rc3 Bg6 19.Bb5 Re6 20.Bc6 Rc6) 17.dc3 Rd8 18.Rfd1 Ree8 19.Kh2 Bg6 20.Kg3 Ne7) 16.Bc3 (16.dc3 Na5 (16...Rae8 17.g4 Bg6 18.Rad1 Nf4 19.Bb5 Nh3 20.Kh2 h5) 17.Bd3 Bf3 18.gf3 Rh4 19.Rad1 c6 20.Kh2 b5) 16...Nc3 (16...Rd8 17.Rfc1 Re6 18.d4 h6 19.Rab1 b6 20.Rb2 Bg6) 17.dc3 Bf3 18.Bf3 Rc4 19.Rab1 (19.Rfd1 Re8 20.Rac1 Rc5) 19...b6 20.Bd5 Rc5 ½-½. Daatselaar,Jan Bart van (2175) - Gavrijski,Dimitar (2140), corr ICCF WSTT/3/06/Final, 2009.

13.Nc3 Rad8 14.d4 Bf5 15.Rfd1 Bc3 16.Bc3 Be6 17.Qb1 h6 18.Bd3 Bg4= 19.Bh7 Kf8 20.Bf5 Bf3 21.gf3 Qg5 22.Kh1 Qh4 23.Qc2 g6 24.Be4+= Nd5 25.Be1 Qh3 26.Bd2 Nce7 27.Rg1+= c6 28.Rac1 Nf6 29.Bb4 Ne4= 30.Qe4 White is in command 30...Rd5 31.Qf4 Kg7 32.e4 Rd7 33.Bc3 Kg8 34.Rg3 Qh5 35.Qf6 Nd5 36.ed5 Rd5 37.Rcg1 g5 38.Qf4 a6 39.Qc7 Rb5 40.f4 f6 41.d5! Qf7 42.Qd6 Rd5 43.Qf6 Qf6 44.Bf6 Kf7 45.fg5 (45.fg5 Re2 46.g6 Kf6 47.g7+–) 1–0. Psion – Psion, 4 Min/Zug, 1990.

13.Nc3 Be6 14.Qc2 Rad8 15.d4 a6 16.Bd3 h6 17.Bh7 Kh8 18.Be4 Nd5 19.Ne2 Bg4 20.Ng3 Na7 21.Ne5+= Be6 22.Nf5 Qf8 23.Rac1 c6 24.Bd3 Kg8 25.Ng3 Nf6 26.Bf5 Bf5 27.Nf5 Rc8 28.Qb3 Rb8?? 29.Ng6+– (29.Ng6 Re3 30.fe3+– (30.Qe3?! fg6 31.Ne7 Kh7+–)) 1–0. Mitrus,Cezary – Borucki,Bogumil, corr 1. AMM Poland, 1992.

13.d4 Rad8 14.Qc2 Nd5 15.Bc1 Rd6 16.Bd2 Bd2 17.Qd2 Rg6 18.Kh1 (18.Nc3 Nc3 19.Qc3 Bh3=) 18...Nf4=+ 19.ef4 Qe2 20.Qe2 Re2 21.Ne5 Ne5 (21...Nd4?! 22.Nc3 Rc2 23.Rac1=) 22.de5 Rc2 23.h3 Be2 24.Re1 Bc4 25.Rd1 The mate threat is Rd8 25...Kf8 26.Kg1 Rb6 27.a4 Be2 28.Rd8 Ke7 29.Na3 Rcb2 30.Rd5 (30.Rc8!? Kd7 31.Rf8=) 30...R6b4-/+ 31.g3 (better 31.Rc5!? c6 32.a5-/+) 31...Ra4-+ 32.Rc5 Kd7 33.Rc3 (33.f5 c6-+) 33...Rd2 (33...b5 34.Re1-+) 34.Rb1 Rd3 (34...b6!? 35.Rbc1 c5 36.Nb1-+) 35.Nb5-/+ c6 36.Rd3 Bd3 37.Nc3? (better 37.Rd1!? cb5 38.Rd3 Ke7 39.f5-+) 37...Ra3 38.Rc1 b5 39.Nd1 a5 40.Nb2 Rb3 41.Nd1 (41.Nd3 Rd3 42.Kf1 Rd5-+) 0-1. Tilp,Andreas - Barczyk,Jens, corr DDR, 1986.

13.Nc3 Nc3 14.dc3 Rad8 15.Rad1 Qg6 16.h3 Bh3=+ 17.Ne1 Rd1 18.Bd1 Ne5 19.Qb7 Nc4?? 20.Qb5+– Rd8 21.Qc4 Rd1 22.Qb5?? h6–/+ 23.Qe8?? Kh7–+ 24.Qa8 c6 25.g3 Bf1 26.Kf1 Qd3 (26...Qd3 27.Kg2 Re1 28.Qc6 Qf1 29.Kf3 Qh1 30.Kg4 Qc6 31.f4 h5 32.Kh4 Bd8 33.Kh5 Qg6#) 0–1. Gross,Wilhelm – Merten,Rainer, xv/01, 1987.

13.h3 Bh5 14.g4 Bg6=+ 15.Bc4 (15.Nh4 Rad8=+ 16.Bc4 Bb6 17.Bd5 Qd5 18.Qd5 Rd5= 0.09) 15...Nb6-/+ 16.d4 (16.Be2 a6-/+ (16...Rad8 17.d4 Be4 18.Nc3 Bc3-/+ -0.75) 17.d4 Be4 18.Nc3 Bc3-/+ -0.75) 16...Nc4 17.Qc4 Rad8 (17...Be4 18.Nbd2 Bd5-/+ -0.97) 18.Nbd2 Re3 (better 18...a6-/+) 19.Qc5?? (better 19.fe3 Qg3 20.Kh1 Qh3 21.Kg1 Bd2 22.Nd2 Qg3 23.Kh1 Qh3 24.Kg1 Qg3 25.Kh1 Qh3 26.Kg1=) 19...Qc5-+ 20.dc5 Red3 (20...Bd2?! 21.fe3 Be3 22.Kg2 Bc5 23.Rad1-+; 20...Rd2?! 21.Nd2 Rh3 22.Kg2=+) 21.Nb1 (21.Bc1-+) 21...Bd2 (better 21...Rf3 22.h4 Be4-+) 22.Nfd2 Rd2 23.f4?? (23.Nd2 Rd2 24.Bc1 Rd3+/-) 23...Be4 (better 23...Rb2 24.f5 Rd3 25.Rf2 Rf2 26.Kf2 Bf5 27.gf5 Rh3 28.Nd2-+) 24.Re1?? (better 24.Nd2 Rd2 25.Rf2+=) 24...Rf2 (better 24...Rb2 25.Nc3 Bf3-+) 25.g5 (better 25.Kf2 Bd3 26.Nc3+-) 25…Rfd2 (25...Rfd2 26.Nd2 Rd2 27.Re4 f5+-; better 25...Rb2 26.Nc3 Bf3-+) 0-1. Hasler,Ulrich - Erben,Thomas, corr SOK-88-26, 1988.

13.Nc3 Nb6 14.d4 =.

13.Nc3 Bc3 14.Bc3 Nf4 (14...Rab8 15.Rfe1 Be6 16.Bb5 Ne3= 0.12) 15.Bc4 Ng2 (15...Nh3 16.Kh1 Bf3= -0.22) 16.Ng5 (16.Kg2 Bh3+= 0.31) 16…Bh5 ½-½. Piekarz,P - Leisebein,Peter, corr, 1996.

13.Nc3 Be6 14.Qc2 Rad8 15.d3 Qe7 16.Rfc1 a6=.

13.Nc3 Be6 14.Bc4 Bc3 15.Bc3 a6 16.a4 Rad8=.

13.Nc3 Be6 14.Nd5+= Bd5 15.Qc2 (15.Qb5 Rab8=) 15...Be4 (15...Bf3 16.Bf3 Qd2 17.Qb3=) 16.d3= Bf5 (16...Bd5 17.e4 Qe6 18.Rfc1= (18.ed5?! Qe2 19.Qe2 Re2=)) 17.Nh4 (17.Nd4 Nd4 18.Bd4 c6=) 17...Bg4 18.Bf3 Bf3 19.Nf3 Rad8 20.d4 Qd5 21.Rfd1 f5 (21...a6 22.Bc3=) ½–½. Jentsch,KD – Bekemann,Uwe, H202E BdF, 1995.

13.d4 =.

13.h3 Be6 14.Qa4 Bf5 15.Bb5 a6 16.Bc6 Qc6 17.Qc6 bc6 (17...bc6 A) 18.Bd4 A1) 18...Be4 19.Rc1 Rab8 (19...Rad8 20.Rc4 f6 21.Nc3 Nc3 22.Bc3= 0.22) 20.Nc3 Bf3 21.gf3 Rbd8 22.Nd5= 0.09; A2) 18...Rad8 19.Rc1 Be4 20.Rc4 h6 21.Nc3 Bc3 22.Bc3= 0.25; A3) 18...Rab8 19.Rc1 Be4 (19...Rb3 20.Nc3 Nb6 21.Ne2 Be4 22.Ng3= 0.22) 20.Nc3 Bf3 21.gf3 Rbd8 22.Nd5= 0.09; B) 18.Rc1 Rab8 19.Bd4 Be4 20.Nc3 Bf3 21.gf3 Rbd8 22.Nd5= 0.09; C) 18.Bc3 C1) 18...Nc3 19.Nc3 c5 (19...Bd3 20.Rfc1 Rad8 21.Na2 Bb5 22.d4+/- 0.97) 20.Rfc1 c4 21.Na4 Be6 22.Nb2+= 0.56; C2) 18...Bb6 19.Rc1 Rab8 20.Be5 Be4 21.Bg3 Ba5 22.Ne5= 0.16) 18.Rc1 (18.Rc1 0.19) 18...Rab8 19.Bc3 Bb6 20.Bb4 (20.Be5 Be4 21.Bg3 Ba5=) 20...a5 (worse 20...Nb4 21.ab4 Bd3 22.Ne1+/-) 21.Bc3 c5 ½-½. Grehl,Siegfried - Leisebein,Peter, corr, 1998.

13.h3 Be6=+ 14.d4 Nc3 15.Qc2 Ne2 16.Qe2 Bf5 17.Rd1=+ Rad8 18.Nbd2 Qd5 19.Qc4 Qd6 20.Nb3 Be6 21.Qd3 Bd5 22.Na5 Na5=+ 23.Nd2 Qe7 24.Rac1 Rd6 25.a4 Rg6 26.g3 h5?? 27.Ba3?? Qe6 28.Kh2 Nb3 29.Rc7+= Nd2 30.Qd2 Qe4 31.Rg1 h4 32.g4 Qf3 33.Rcc1 Rf6 34.Rc2= Bb3 35.Rb2 Ba4 36.Rb7?? Qb7–+ 37.d5 Bb3 38.Rb1 Qd5 (38...Qd5 39.Qd5 Bd5–+) 0–1. Havranke,Stefan – Fernandez,David, Wch IBCA U18 3rd, 2003.

14.Qa6 Rb2 –+.

14.Ne5 Rb7 15.Nd7 Rb2?! 16.Bg4 Bd2 17.Nd2 Rd2 18.Rfd1 Rd1 19.Rd1 +=.

14.Ne5 Rb7 15.Nd7 Bd7?! 16.Bc3 –+.

14.Ne5 Rb7 15.Nd7 Be2 –+.

14.Ne5 Be2?! 15.Qc6 Qc6 16.Nc6 Bf1 17.Kf1 Rb2 18.Na5 –+.

14.Ne5 Be2?! 15.Nd7?? Rb7 16.Re1 Bg4 –+.

14.Ne5 Ne5?! 15.Bg4 Rb7 16.Bd7 Nd7 17.Bc3 Nc3 18.dc3 –+.

13.Qb7+= Rd6 14.Qb3 Bb6 (14...Nf4! 15.Bb5 Nh3 16.Kh1 Bf3 17.gf3 Qh4=) 15.d4 Na5 16.Qc2 Ne3 17.fe3 Qe3 18.Rf2 Bf3 19.Bf3?? (19.gf3 Rd4! 20.Bf1-+) 19...Rd4 20.Bd4?? (better 20.h3 Qe1 21.Kh2-+) 20...Qd4 (20...Qe1 21.Rf1 Bd4 22.Qf2 Qf2 23.Rf2 Re1) 21.a4?? (better 21.Nc3+/-) 21…Re2 (21...Re2 22.Qe2 Kf8+-; 21...Re1) 0-1. Dopper,Johan - van Geemen,Jan, corr, 1989.

13.Qb7 Rd6 14.Qb3 Nf4 15.ef4 Qe2 16.Nc3 Qd3 17.Rae1 Rde6 18.Re6 fe6 (18...Re6? 19.Ne5 Re5 20.fe5 Qd2 21.Qb7+–) 19.Qa4 (better is 19.Ne5!? Ne5 20.fe5+=) 19...Bf3+= 20.gf3 Bc3 21.Bc3 Qg6 ½–½. Boehnke,Hartmut (2095) – Grabner,Dr. Helmut (2350), 3rd Webchess Open Tournament prel., 2008.

13.Qb7 Rd6 14.Qb3 Nf4 15.ef4 (15.Bb5 Nh3 16.Kh1 Bf3 (16...Rb8) 17.gf3 Qh4 18.Qc2 Rh6 19.Qc6 Rc6 20.Bc6-+ -4.09; 15.Qc4 Qe4 16.Rc1 Nd4 17.Bd4 Rd4 18.Qb5 Rd5 19.Qa6 Rd6 20.Qc4-/+ -0.78; 15.Bc4 Rb8 16.Qc2 (16.Qa2 Ng2 17.Nd4 Nf4 18.ef4 Nd4 19.Bd4 Bf3 20.Bf7-+ -4.22) 16...Ng2 17.Kg2 Rg6 18.Bd3 Rb2 19.Bg6 Rc2 20.Bc2-+ -3.78) 15...Qe2 16.Nc3 (16.Ne5 Ne5 (16...Rde6 17.h3 Bf5 18.Nc3 Qa6 19.Nd5 Rb8 20.Nb4= 0.16) 17.fe5 Bb6 18.h3 Be6 19.Qg3 Rd3 20.Qf4=+ -0.66; 16.Ng5 Re7 17.Nc3 Bc3 18.Qc3 Nd4 19.h3 h6 20.hg4= 0.00) 16...Qd3 17.Rfe1 Rde6 18.Re6 fe6 (worse 18...Re6 19.Ne5 Qd2 20.h3 Re5 21.fe5+-; 18...Be6 19.Re1 Rb8 20.Qa4= 0.19) 19.Qa4 (19.Ne5 Ne5 20.fe5 Rf8= (worse 20...Qd2 21.Ne4 Qd5 22.Qa4+=)) 19...Bf3 20.gf3 Bc3 (20...Qf3? 21.Ne4 Bd2 22.Qc6 Qg4 23.Ng3+-) 21.Bc3 Qf3 22.Re1 Qg4 ½-½. Lins,Thomas - Goy,Udo, corr, 2002.

13.d4 Rd6 14.Nc3 (14.Qb7?? Rb8 15.Qb8 Nb8–+) 14...Be6 15.Qc2 =.

13.d4 Nf4 14.Bd1+= Ng2 (14...Qe6!?+=) 15.Kg2+/– Qe4 16.Bc3 Ne5 17.Nbd2 (17.Ba5?? Nf3 18.Kh1 Nd4 19.f3 Nb3 20.fe4 Rd1 (20...Na1?! 21.Bg4 b6 22.Bc3–/+; 20...Na5?! 21.Bg4 Re4 22.Bh5–/+) 21.Rd1 Bd1–+ (21...Na5?! 22.Re1–+); 17.de5 Re6 18.Qe6 fe6–+ (18...Be6?! 19.Be2 Bc4 20.Rd1 Qg4 21.Kh1 Rd1 22.Bd1–+)) 17...Bf3 18.Bf3 Qg6 19.Kh1 Nf3 20.Ba5 Qh5 21.Nf3 Qf3 22.Kg1 b6 23.Qd1 Qh3 24.Kh1 ba5 25.Rg1 (25.Rc1 Rb8 26.Rg1 Rb2=) 25...c5–/+ 26.Qg4 Qg4 27.Rg4 cd4 28.Rd4+= Rd4 29.ed4 Rd8 30.Rc1 Kf8 31.Rc4 Ke7 32.Kg2 Rd5 33.f3 Kd6+= 34.Kg3 g6 35.Kf4 Rh5 36.Rc2 Rb5 37.Rc8 Rb3 38.Ra8 Ra3 39.Ra7 Ra4 40.Ke3 Ke6 41.Ke4 f5 42.Ke3 g5 43.h4 Ra3 44.Kf2 gh4 45.Rh7–/+ a4 46.Rh4 Rb3 47.d5= ½–½. Kural,A_Serhat (2305) – Spasov,Spas (2165), EU/TC9/sf1 ICCF, 2011.

13.h3 Bf5 14.Nc3 (14.Qb7 Rd6 15.Nd4 Nd4 16.Bd4 Bb6 17.Bb6 ab6+=) 14...Nc3 15.Bc3 Be4 16.d4 (worse is 16.Qb7 Nd4 17.Qa6 Ne2 18.Qe2 Bd3–/+) 16...Bd5 17.Qc2 Bc3 18.Qc3 Rd6 19.Rfc1 Rg6 20.Rab1 Qf6 21.Kf1 (21.Rb7?? Bf3 22.Bf3 Qf3–+) 21...a6 22.Bd1 b5 23.Bc2 Rh6 24.e4 Bc4 (24...Be4? 25.Re1 Nd4 A) 26.Re4?! Re4 27.Be4 Nf3 28.Qf3 Qf3 29.Bf3 c5+/–; B) 26.Be4?! Nf3 27.Bf3 Qd8+– (27...Qc3?? 28.Re8); C) 26.Nd4+–; 24...Re4 25.Be4 Be4 26.Re1 Nd4 27.Nd4+– (worse is 27.Qd4 Qd4 28.Nd4 f5+–)) 25.Bd3 Na5 (25...Rh3! 26.Bc4 Rh1 27.Ke2 Rc1 28.Rc1 Re4 29.Kd3 Qg6+=) 26.Ne5+= Bd3 27.Qd3 (27.Nd3?! Nc4 28.Nb2 Nb2+=) 27...Qd8 28.Qc3 c6 29.Re1 Rhe6 30.Rbd1 f6 31.Nd3 Re4 32.Re4 Re4 33.Nc5 Re7 34.Na6 Nc4 35.a4 Qd5 36.Nb4 Qd6 37.Kg1 ½–½. Daatselaar,Jan Bart van (2230) – Seeger,Nicole, 2nd Webchess Open Tournament group, 2006.

13.Bc4 Bf3 14.ef4 Be2 (14...Be4 15.d3 Bf5 16.Qb7 Bd7 17.Qb3 Rab8 18.Qa2=+ -0.31) 15.Be2 Qe2 16.Qg3 g6 17.Qg5 (17.Qh4 Rad8-/+ (17...Bd2? 18.Nd2 Re6 19.f5 gf5 20.Qg3 Rg6 21.Qc3+-) 18.Qf6-/+ -0.72) 17...Bb6-/+ (17...Bd2? 18.Nd2 Qe7 19.Bf6+-) 18.Qf6?? (better 18.h3 Nd4 19.a4-/+) 18…Qf2 (18...Qf2 19.Rf2 Re1) 0-1. NN - Van der Wees,Aad Jan, corr, 1980.

13.Bc4 Nh3 14.Kh1 Bf3 15.gf3 Qd7 16.d4 Ng5 17.Rg1 Nf3 18.Rg3=.

13.Bd1 Be6 14.Qb7 Qd6= 15.Qa6 Rab8 16.Be5 Ne5 17.Qd6 cd6 18.ef4-/+.

13.Bd1 Ng6 14.Qb7+= Bd7 15.Qb3 Rab8 16.Qc2 Rb7 17.Nc3+/– Reb8 18.Rb1 Qe6 19.d3 h6 20.Nd2 Qf5 21.Nce4 Nh4 22.Nc4 Ng6 23.g4 Qb5 24.a4 Qb4 25.Na5 Qa5 26.Bc3 Qd5 27.Bf3 Kf8 28.Nd2 Qd6 29.Rb7 Rb7 30.Nc4 Qe6 31.h3 Nh4 32.Be4 f5 33.gf5 Nf5 34.Ne5 Nfe7 35.Qd1 Kg8 36.Nd7 Qd7 37.Qg4 Qg4 38.hg4 Rb6 39.f4 Ra6 40.a5 Kf7 41.Rb1 Nd8 42.Kf2 Rd6 43.Be5 Rd7 44.Rc1 c6 45.a6 Ne6 46.f5 Nd8 47.Bd4 Nd5 48.Rc4 Ke8 49.Bd5 cd5 50.Rc8 Kf7 51.Ba7 Ra7 52.Rd8 Ra6 53.Rd5 (53.Rd5 Kf6 54.e4+–) 1–0. Psion – Psion, 4 Min/Zug, 1990.

13.Bd1 Ng6 14.Qb7+= Bd7 15.Qb3 Rab8 16.Qc2 Rb7 17.Nc3 Reb8 18.Rb1 Qe6 19.d3+/– h6 20.Nd2 Qf5 21.Nce4 Nh4 22.Nc4 Ng6 23.g4 Qd5 24.Bf3 Kf8 25.Na5 +–.

13.Bd1 Ng6 14.d4 Qd6 15.Ng5+= Be6 16.Ne6 Qe6?? 17.d5+– Qe4 18.Bf3 Qe7 19.dc6 bc6 20.Qa4 Qg5 21.Qd4 Re5 22.Bc6 Rd8 23.f4 Qh6 24.Qd8 (24.Qd8 Nf8 25.fe5 Qc6 26.e6 Qe6 27.Qg5+–) 1–0. Gross,Wilhelm – Merten,Rainer, xxvii/13, 1995.

13.Nc3 Bc3 14.Bc3 Nc3 15.dc3=.

13.Nc3 Bc3 14.Bc3 Nc3 15.Qc3 Ne5 16.Kh1 c5=+ 17.Rfe1 Bf3 18.gf3 Qd6 19.Rad1 c4 20.Rg1 g6 21.Rg3 Nd3 22.Kg2 b5 23.Rg4 Qe5 24.Re4 Qg5 25.Rg4 Qf5 26.h4 h5 27.Rg3 Qe5 28.Qc2 a6 29.Bd3 Rd3 30.a4 Qd5 31.ab5 ab5 32.Qb1 Re5 33.e4 Qd6 34.f4 Rg3?? 35.Kg3 Rc5 36.d4 Rc8 37.Qb5= Qa3 38.Kg2 c3 39.Rd3?? Qe7 (39...Qe7 40.Rd1 Qe4 41.Kg1 c2–+) 0–1. Zapf,D – Breitschuh,U, corr DDR (H/307), 1989.

13.Nc3 Nc3 14.Bc3 Bc3 15.dc3 (15.Qc3 Ne5 16.Ne5 Be2=+) 15...Rd6 (15...b6 16.Rfd1=) 16.Rfb1 (16.Rab1 b6=) 16...b6 17.Rd1 Red8 18.Rd6 Rd6 19.Kf1 (19.Re1 Rd8=) 19...Bf3 20.Bf3 g6 (20...Ne5 21.Be4 Qh4 22.Rd1=) 21.Rd1 (21.Kg1 Ne5=) 21...Ne5 22.Qe4 Rd1 (22...Qd7 23.Rd4 Nf3 24.gf3=+) 23.Bd1= Qd6 Do you see the mate threat? 24.Qd4 Nc4 (24...Qe7 25.Kg1=) 25.Qd6 (25.a4 h6=) 25...Nd6 26.Be2 Ne4 (26...c5 27.Ba6=) 27.c4 Nd2 (27...a6 28.Ke1=) 28.Ke1 Nb1 29.a4 Nc3 30.Bd1 Nd1 31.Kd1 Kf8 32.e4 Ke7 33.Ke2 (33.f4 c6=) 33...Kd6=+ 34.Kd3 f6 (34...Kc5 35.Kc3=+) 35.f4= Kc5 (35...h6 36.h3=) 36.g4 (36.e5 fe5 37.fe5 h6+/-) 36...h6 (36...Kd6 37.g5 fg5 38.fg5=) 37.e5 fe5 38.fe5 The passed pawn on e5 quickly leads to threats 38...Kc6 (38...a6 39.Ke4+=) 39.Kd4 (better 39.Ke4!?+=) 39...Kd7= 40.Kd5 c6 41.Kd4 Ke6 42.h4?? (better 42.c5=+) 42...c5-+ 43.Ke4 (43.Ke4 g5 44.hg5 hg5 45.Kd3-+). Tidemalm,Gustav - Wikstroem,Birger, corr Sweden, 1986.

13.d3? Ne3!-+ 14.fe3 Qe3 15.Rf2 Bf3 16.gf3 Bb6 Threatening mate: Qxf2 17.Bf1 Rd6 (17...Qf2?! 18.Qf2 Bf2 19.Kf2-/+) 18.Nc3 (18.Kh1 Qf2 19.Qf2 Bf2-+) 18…Rg6 (18...Rg6 19.Kh1 Qf2 20.Qf2 Bf2-+; 18...Nd4!? 19.Qa4 Nb5 20.Qc2 Rg6 21.Kh1 Qf2 22.Qf2 Bf2 23.Bh3-+) 0-1. Schwab - Borrmann,Fritz, corr SOK-87-11, 1987.

13.Qb3= Bb6 14.Nbd2 Na5 15.Qd1 (15.Qc2 Nf4 16.Bd1 Ng6=) 15...c5 16.Bb5 Bd7 17.Qa4 a6 18.Bd7 Qd7 19.Qd7 Rd7 20.Ne5 Rdd8 21.Ndc4 Nb3 22.Rad1 (worse 22.Nb6 Nb6 23.Rab1 Nd2 (23...cd4?! 24.Bd4 Nd4 25.ed4 Rd4 26.Rb6 Re5 27.Rb7=) 24.dc5 Na4-/+) 22...Bc7 23.Rd3 b5 24.Rb3 cd4 (24...f6 25.dc5 fe5 26.Nd2 Ne3 27.Re3 Rd2 28.Ba1=) 25.ed4 (worse 25.Bd4 f6 26.Nf3 bc4=+) 25...f6 26.Na5 fe5 27.Nc6 Rd6 28.Ne5 Nf4 29.Nf3 Bb6 (Exerts pressure on the isolated pawn) 30.Re3 Red8 31.Re4 Ne6 32.Rd1 Nc5 33.Rg4 Na4 34.Ba1 Rd5 35.Re1 Rc8 36.Rge4 Rc7 37.h4 h6 38.g4 Ba5 39.Rd1 Nc3 40.Bc3 Bc3 41.Re3 (41.Rd3 a5+/-) 41...a5 42.Re5 Rcd7 43.Rd5 Rd5 44.Rd3 b4 45.ab4 Bb4 46.Nd2 (46.Rb3 g5+=) 46...Be7 (46...Bc5 47.Nf3=) 47.Ne4 (47.h5!?+=) 47...Bh4= 48.f4 Be1 49.Nc3?? (better 49.Rd1 Bb4 50.Kf2=) 49…Bc3-+ (49...Bc3 50.Rc3 Rd4 51.Rc8 Kh7-+) 0-1. Poschmann,Hans - Grund,Karl, corr, 1972.

13.Qb3 Bb6 14.Nbd2 Na5 15.Qd1 Ne3 16.fe3= Qe3 17.Rf2 Bf3 18.Nf3 18...Nb3 The pressure on the isolated pawn grows 19.Rb1?? Nd4–+ 20.Nd4? Bd4 21.Bd4+= Rd4 22.Qb3 Qb3 23.Rb3 b6 (23...b6 24.Bb5 Re1 25.Rf1 Ree4=) unclear.

13.Qb3 Bb6 14.Nbd2 Bf5 15.Bc4 Na5=+ 16.Qa4 Nc4 17.Qc4 Ba5 18.Rae1 Nb6 19.Qb3 c6 20.e4 Be6 21.Qc2 Bg4 22.Re3 Bd2 23.Nd2 Bh5 24.Bc3 f6 25.Bb4 Qf7 26.Bc5 Nc8 27.f3 b6 28.Bb4 a5 29.Bc3 Qd7 30.Rc1 Bf7 31.Bb2 Ne7 32.Nc4 Qc7 33.a4 Rd7 34.Re2 Ng6 35.Ne3 c5 36.d5+/– Qf4 37.Qb3 Rb8 38.Nc4+/– Qc7 39.Qc3 Nf4 (39...Nf4 40.Rd2 Be8+/–; 39...Be8 40.Rd2+/–). Psion – Psion, 4 Min/Zug, 1990.

13.Nbd2? Ne3!–+ 14.fe3 Qe3 15.Rf2 Bd2 16.Kf1 Ba5 17.Rc1 Bb6 18.Rc3 Qe7 19.Rc4 Be6 20.Ra4 Na5 21.Qd2 Nb3 22.Qc3 Bd5 23.Bd1 Qe3 24.Qc2 Bf3 25.gf3 Nd4 (25...Nd4 26.Bd4 Bd4–+) 0–1. Schirmer – Hoffmann,H_G, corr AK'1064, 1984.

13.Nc6 Bd1 14.Rd1?? f5 (14...bc6 15.h3-+) 15.f4?? (better 15.Ne7 Ne7 16.Nc3=) 15...Nc3 (better 15...bc6 16.Be5-+) 16.Nc3 (better 16.Ne7 Re7 17.Bc3+- (17.dc3?! Re3 18.Nd2 Bc3+-)) 16...b5 (better 16...bc6 17.Na2 Rad8-+) 17.h3 (17.Na5?! Qd7=) 0-1. Williams,Barry - Frost,Ted, NZCCA TT Reserve NZL, 2001.

13.Nc6 Bd1 14.Ne7 Re7 15.Rd1 Rd8 16.d4 f5 17.Rd3 f4 18.Nc3 fe3 19.fe3 Re3 20.Re3 Ne3 21.Ne2 Re8 22.Nc3 Nc4 23.Na4 b5 24.Rc1 Bd2 25.Rc2 Rf8 26.h3 Be3 27.Kh1 0-1. Williams,Barry - Frost,Ted, NZL NZCCA TT Reserve, 2001.

13.Ne2 Bb6 14.Ng3 Rad8 (14...Qe6 15.Qf3=) 15.Nf5 (better 15.Bg7!? Qe6 16.Nh5+/-) 15...Qg5=+ 16.Ng7 Re4 (better 16...Re5=+) 17.Qf3+/- Re5 (17...Rc4 18.Nf5 Bc5 19.d4+/-) 18.d4 (worse 18.Be5 Ne5 19.Qf5 Qg7=+) 18...Re7 19.Nf5 Re6 20.h4 (20.e4 Rf6 21.h4 Qf4 22.ed5 Qf3 23.gf3 Rd5+/-) 20...Qf6+/- 21.Nc3 Nce7? (better 21...Nde7 22.Ne7 Qe7+/-) 22.Nd5+- Nd5 23.e4 Ne7 24.d5 (24.d5 Qb2 25.de6+-) 1-0. Borrmann,Fritz - Zuchner,Bernhard, CiF, 1992.

13.Ne2 Ne5 14.Qb3= c6 15.e4 Nf6 16.d4 Ng6 17.f3 Rad8 18.Nbc3 Bc7 19.Rad1 Rd7 20.Rd3 h5 21.e5 Be5!–/+ 22.de5? Rd3–+ 23.ef6 Qe2! 24.Qc4 (24.Ne2 Rb3) 0–1. Franek,Mieczyslaw – Probola,R, corr Poland, 1986.

13.Ne2 Ne5 14.Qc2 Rad8 15.Nbc3 Nc3=+ 16.Bc3 Bc3 17.Qc3 Nd3 18.Nd4= c5 19.Qd3 cd4 20.Rfb1 de3=+ 21.Qe3 Qe3 22.de3= Re7 23.Rb2 Red7 24.g3 b6 25.a4 Rd5 26.Rb5 Kf8 27.Kg2 Ke7 28.Rc1 Rb5 29.ab5 Rd5 30.Rc7 Ke6 31.Kf3 Rb5 32.Ra7 Rb2 33.Ra6 h5 34.h4 g6 35.g4 hg4=+ 36.Kg4 Rf2 37.Rb6 Ke5 38.Rb4 Rg2 39.Kf3 Rh2 40.Kg3 Rh1 41.Ra4 ½–½. Hess,Helmut (1615) – Lange,Lutz (1725), 14 sen. Bad Sooden–Allendorf, 2002.

14.Qc2 Ne5 15.d4 Ng4 16.Qc5 Qh4 17.h3 Bb6 18.Qc1 Nh6 19.Nd2 c6 20.Nf3 Qe7 21.Ng3 Bc7 22.e4 Bf4 23.Qc2 Ne3 24.fe3 Bg3 25.Nd2 Qg5 26.Rf3 Bc7 27.Raf1 Rd6 28.e5 Rg6 29.Ne4 Qe7 30.g4 f5 (30...Kh8!?=) 31.ef6+/- Qe4 32.f7 Nf7 33.Qe4 Re4 34.Rf7 Bd6 35.Rd7 h5 36.Rff7 (better 36.Rf5 Re8 37.d5+/- (37.Rh5?! Re3 38.Rb7 Rge6+=)) 36...Re3-/+ Attacking the isolated pawn on a3 37.d5 Bf8 38.dc6 (38.Kf1 A) 38...Ba3?! 39.gh5 (worse 39.Bg7 Rh3 40.gh5 Rh5-+) 39...Rgg3 40.Rg7 Rg7 A1) worse 41.Bg7 Re7 42.Re7 Be7 43.dc6 bc6-/+ (43...Kg7?? 44.c7+-); A2) 41.Rg7 Kf8 42.Rb7 cd5 43.Bg7 Ke8 44.Rb5=; B) 38...hg4 39.hg4 Ba3-/+) 38...bc6-/+ 39.Kg2 (39.Rf5!? Ba3 40.Kf2 Rh3 41.gh5-/+) 39...hg4-+ (39...Ba3?! 40.Bd4 Re4 41.Rg7 Rg7 42.Rg7 Kf8 43.Ra7 Rd4 44.Ra3 hg4 45.hg4 Rg4 46.Kf3-/+) 40.h4 Re2 41.Rf2 Rge6 42.Rdf7 (42.Ra7?? Rf2 43.Kf2 Bc5 44.Kg3 Ba7 45.Kg4 Re4 46.Kh3 c5-+) 42...Rf2 43.Rf2 Re3 44.a4 (44.Bd4 Rh3-+ (44...Ra3?! 45.Rf8 Kf8 46.Bc5 Kf7 47.Ba3=+)) 44...c5 45.Bc1 Re4 46.a5 Bd6 47.Rd2 Bc7 48.Rd7 Ba5 49.Ra7 Bb4 50.Kg3? (50.Rb7-+) 50...Be1 51.Kg2 Bh4 (51...Bh4 52.Ba3 c4-+) 0-1. Hess,Helmut (1615) - Scholze,Roland (1815), 14sen.Bad Sooden-Allendorf, 2002.

14.Qc2 Ne5 15.Ng3 Bb6 (15...Qe6 16.d4 Ng4 17.e4 Nf4 18.h3 Nh6 19.Rd1= -0.06; 15...Qf6 16.Ra2 Qe6 17.Be5 Qe5 18.Rb2 Bb6 19.d4= 0.09; 15...Nf6 16.Be5 Qe5 17.d4 Qe6 18.Nc3 c5 19.Nce2= -0.09; 15...Qd6 16.d4 Ng4 17.e4 Nf4 18.Qd1 Nf6 19.Qc2=+ -0.28; 15...Qg5 16.f4 Qg6 17.Qg6 Ng6 18.Nf5 f6 19.Rc1=+ -0.47) 16.d4 (16.Nc3 Nf6= 17.Na4 Nd3 18.Nb6 Nb2 19.Qb2= 0.13) 16...Ng4=+ 17.Nf5 Qg5 (17...Qe6 18.Nc3 c6 19.Rfc1=+ -0.41) 18.h3 Ngf6 19.Nd2 Ne4 20.g4 Nd2 21.Qd2 h5 22.Qd1 Nf6 23.f4 (23.d5 hg4 24.Bf6 Qf5 25.Bd8 gh3-+) 23...Qg6-+ 24.Nh4 Qe4 25.Ng2 hg4 26.hg4 c5 27.Re1 Ba5 28.Rf1 c4 29.g5 Nd5 30.Bc1 b5 31.Qh5 Qf5 32.Nh4 Qe4?? (32...Qd3 33.Ng2-+) 33.Ng2 Bb6 (33...Bc3 34.Ra2-+) 34.Rf2 Rd6 35.f5 Bd8 36.f6 gf6 37.Nh4 Qh7 (37...Ne3 38.Be3 Qh7 39.Qh7 Kh7 40.Nf5+=; 37...fg5 38.Qf7 Kh8 39.Nf5 Qg4 40.Rg2 Qd1 41.Kf2 Qc2 42.Kg3 Qg2 43.Kg2+-) 38.Qh7 Kh7 39.Nf5 Rde6 40.gf6 Rf6 41.Raa2 Bc7 42.Rab2 Bf4 43.ef4 Re1 44.Rf1 Rf1 45.Kf1 Rf5 46.Rf2 (46.Ke1 a6-+ (46...Nf4?! 47.Bf4 Rf4 48.Rb5-/+)) 46...a5 47.Rc2 (47.Ke2 b4-+) 47...Nf4 48.Rf2 Nh5 49.Rf5 Ng3 50.Kf2 Nf5 51.d5 b4 52.Ke2 Kg6 53.ab4 ab4 54.Kd1 Kf6 55.Bd2 c3 56.Bf4 (56.Bc3 bc3 57.Kc2 Ne3 58.Kc3 Nd5 59.Kd4 Kg5-+) 56...b3 57.Kc1 Nd4 (57...Nd4 58.Kb1 Nf3-+) 0-1. Scholz,Guenter - Schwertel,Gottfried, BdF, 2001.

14.Nbc3 Nc3 15.Bc3 Bc3 16.Nc3 a6 17.d4= b5 18.Qc2 Nd4 19.ed4+/– Rd4 20.Qb2 Rd3 21.Rad1 Rd1 22.Nd1 c5 23.Ne3 Qe6 24.h3 Rd8 25.Qc2 c4 26.Rd1 Rd1+= 27.Qd1 h6 28.Qd8 Kh7 29.Qd4 Kg8 30.Qc5 Qf6 31.Qc8 Kh7+= 32.Qf5 Qf5 33.Nf5 Kg6 34.Nd4 Kf6 35.Kf1 Ke5 36.Nc2 a5 37.Ke2 Ke4 38.Kd2 Kd5 39.Ne3 Ke4 40.Kc3 f5 41.Nf1?? g6 42.Ng3 Kd5+= 43.h4 f4 44.Ne2 g5 45.h5 Kc5 46.Kd2 b4 47.a4 Kd5 48.f3 Ke5 49.Kc2 Kd5 50.Ng1 Kd4 51.Nh3 b3 52.Kb2= Kd3 53.Nf2 Kd2 54.Ne4 Kd3 55.Nd6 c3 56.Kb3 c2 57.Kb2 Kd2 58.Ne4 Kd1 59.Nc3 Kd2 60.Na2 Kd1 61.Kc3 c1Q 62.Nc1 Kc1 63.Kc4 Kd2 64.Kb5 Ke2?? 65.Ka5+= Kf2 66.Kb4 Kg2 67.a5 g4 68.a6 gf3?? 69.a7 f2 70.a8Q f3 71.Qg8 Kh2 72.Qc4 Kg2 73.Qg4 Kh2 74.Qf3 Kg1 75.Kc4 f1Q 76.Qf1 Kf1 77.Kd4 (77.Kd4 Ke2 78.Ke4+–) 1–0. Hoszowski,Piotr – Borucki,B, corr 1. AMM Poland, 1990.

14.Nbc3 Nc3 15.Bc3 Bc3 16.Nc3 Rd3 17.Qc2 (17.Qb1!? Qd7 18.Qb7=) 17...Red8=+ The backward pawn on d2 becomes a target 18.Rfd1 Qc5 19.Qb2 Na5 20.Rac1 c6 21.Nb1 Qh5 22.Re1 b5 23.h3 (23.Rc3 Nc4 24.Qb3 Ne5-/+) 23...Nc4 24.Qb4 Qd5 25.Qe7 a5 26.Qb7 Qc5 27.Qc7 Qd6 28.Qb7 Rb8 (worse 28...Na3 29.Rc6 Qb8 30.Qe7=+) 29.Qa7 Qd8 (29...Na3?! 30.Rc6 Qd8 31.Na3 Ra3 32.Rc7=) 30.Qc5 Rd5 31.Qc6 Rc8 (better 31...Ne5!? 32.Qc7 Nd3-/+) 32.Qa6= Ra8 33.Qb7 Rb8 34.Qa7 (34.Qc6!?=) 34...Rb6 (34...Rd7 35.Qc5 Nb2 36.d4-/+) 35.Rc4 (35.d3!? Rd3 36.Nc3=+) 35...bc4-+ 36.Nc3 (36.e4 Re6-+) 36...Rd2 37.Qa5? (37.Ne4 Rd5-+) 37...Rb3 (37...Rf2 38.Kh1 Rg2 39.Na4 Rh2 40.Kh2 Rb2 41.Nb2 Qa5 42.Re2-+) 38.Qe5 Rd3 (38...Ra3 39.Rb1 Rb3 40.Rc1-+) 39.Rc1 Ra3 40.Nb5 Ra4 41.Qc5 (41.Qf4 Rb4 42.Nd4 Qf6 43.Qf6 gf6-+) 41...Rd5 42.Qc6 Qd7 43.Qd7 Rd7 44.Nc3 Ra8 45.g4 h6 46.Kg2 Rd3 47.Rc2 (47.Kf3 Rc8-+) 47...Kf8 48.Kf3 Ke7 49.Ke4? (better 49.Ne4-/+) 0-1. Hoszowski,Piotr - Noskowicz,Krzysztof, corr 1AMM Poland, 1992.

14.Ng3 Qg5 (14...Qe6 15.Qc2 (15.d3; 15.Qf3) 15...a6 16.Rc1 Rd7 17.Nc3 Bc3 18.Bc3 Nc3= -0.03; 14...Nf6 15.Qc2 (15.Bf6) 15...Qe6 16.Bf6 Qf6 17.d4 Ne7 18.Ne4 Qg6= 0.06; 14...Ne5 15.Qc2 (15.Qb3; 15.Qe2; 15.Qh5) 15...Bb6 16.Nc3 Nf6 17.d4 Nc4 18.Na4 Nd6= 0.00; 14...Qd7 15.Qf3 (15.Qc2; 15.Qb3; 15.Qh5) 15...Bb6 16.Nc3 Qe6 17.Nce4 Nde7 18.d4 f5= 0.03) 15.Qc2 (15.d3 Ne5 16.Ne4 Qe7 17.Ng3 c5 18.Qc2 Ng4=+ -0.41; 15.Qb3 Nb6 16.Qc2 Qg4 17.Rc1 a6 18.d3 Qa4= -0.19) 15...h5 (15...Nf6 16.Bf6 Qf6 17.d4= a6 18.Nc3 Bc3= 0.00; 15...Qg4 16.Nf5 f6 17.d4 Re6 18.Ng3 Nce7= 0.09) 16.Qf5 (16.Ne4!? Qg6 17.d3=+ Bb6 18.Nbc3 Nc3= -0.22) 16...Qf5=+ 17.Nf5 f6 (17...g6 18.Nd4 Nd4=+ -0.53) 18.d4 (18.d3 Kf7=+ -0.47) 18...Re4 (18...g6!? 19.Nh4 Kg7=+) 19.Ng3= Rh4 20.Rc1 Nce7 (20...Kf7 21.Bc3 Bb6 22.Nd2=) 21.Nc3 c6 22.Nce4 (22.Nd5 Nd5 23.Rab1 Kf7=) 22...Bc7 23.Nd2 Rg4 (23...f5 24.Nf3 Bg3 25.hg3=) 24.Nh5+= Bh2 25.Kh2 Rh4 26.Kg3 Rh5 27.e4 ½-½. Busch,K - Nebe,Lutz, corr SOK-88-27, 1988.

13.Qb3 Nb6 14.d4 Rad8 15.Rd1=.

13.Qb3 Rad8 14.Nc3 (14.Qb7 Rd6 15.Nd4 Nd4 16.Bd4 Bb6 17.Bb6 ab6=) 14...Nc3 (14...Nb6 15.d4=+) 15.Bc3= Be4 16.Rac1 (worse 16.Qb7 Nd4 17.Qa6 Ne2 18.Qe2 Bd3-/+) 16...Bd5 17.Qb2 (worse 17.Qb7 Nd4 18.Qa6 Rd6 (18...Ne2?! 19.Qe2 Bb6 20.a4=) 19.Nd4 Ra6 20.Ba6 Qg5=+ (worse 20...Qa3 21.Ra1 Ba2 22.Ba5 Qa5 23.Bc4+-)) 17...Bc3 18.Qc3 Rd6 19.d3 Rg6 20.Rfd1 f5 (20...Qe6 21.Kh1=) 21.Qc5 (21.d4 Qe4=) 21...Qf7 22.e4 (22.Re1!?=) 22...fe4=+ 23.de4 Re4 24.Rd5 (24.Qd5 Re2 25.Qf7 Kf7=+) 24...Re2 25.Rf5 (25.Ne5 Re5 26.Re5 b6 27.Qc6 Rc6 28.Rc6 Qd7=+) 25...Qe7= 26.Qb5 h6 (26...Rd6!?=) 27.Qb7+= Kh7 (27...Qd7 28.Rfc5 Ree6 29.Qb3+=) 28.Qb1 (28.Rfc5 Ne5 29.Ne5 Re5 30.Re5 Qe5 31.Qc7 Qe4+/-) 28...Ree6 (28...Qa3? 29.Rc6 Rb2 30.Qe4+-) 29.h4 Kg8 (29...Qa3 30.h5 Ne7 31.hg6 Rg6 32.Rf7+-) 30.Qb3 Kh7 31.h5 Rgf6 32.Rf6 Qf6 (32...Rf6 33.Re1 Qd7 34.Qc2 Qf5 35.Qf5 Rf5 36.Rc1+=) 33.g3 (33.Qb1 Kg8+/-) 33...Ne5 (33...Qe7 34.Kg2=) 34.Ne5 Qe5 35.Qc2 Kg8 36.Qc7 Qh5 37.Qa7 Kh7 38.Qb7 Qf5 (38...Re8 39.Qb1 Kh8 40.Re1+/-) 39.Rc7 Rg6 40.Kg2 Qa5 41.Rc8 Qf5 (41...Qa3 42.Qd5 Rf6 43.Qe4 Rg6 44.Rc6+-) 42.Rc3 (42.Re8 Rd6+/-) 42...Rg5 43.a4 (43.Qf3 Qg6+/-) 43...Rh5 44.Rc4 Qh3 45.Kg1 Qh2 46.Kf1 Rf5 (46...Qh3!? 47.Qg2 Qd7 48.Qe4 Kh8+/-) 47.Qg2+- Qg2 48.Kg2 Ra5 49.Kh3 Kg8 50.f4 Kf7 51.Kg2 h5 52.Kf2 g5 53.Kf3 gf4 54.Kf4 Ke6 55.Kf3 Rf5 56.Rf4 Rc5 57.Rb4 Ra5 58.Re4 Kd5 59.Rf4 Ke6 60.Re4 ½-½. googol (2395) - madchess (2225), gameknot.com, 2009.

13.Bb5 Qc5 14.Qb3 Be6 15.Bc4 Qb6 16.Nc3?? (better 16.Ng5=) 16...Nc3?? (16...Qb3 17.Bb3 Nc3 18.Be6 Ne2 19.Kh2 Re6=+) 17.Be6-/+ Re6 (worse 17...fe6 18.Qb6 Ne2 19.Kh2 Bb6 20.Rae1=+) 18.Qb6 Ne2 (18...ab6?! 19.dc3 Rd6 20.Rfd1=) 19.Kh2 Bb6 (worse 19...cb6 20.Rfe1=) 20.Rfe1 Nf4 21.ef4 Re1 22.Re1 Bf2 23.Re2 Bb6 24.g4 Rd8 25.d4 f6 (25...Bd4 26.Nd4 Nd4 27.Bd4+/-) 26.Rd2 Kf7 27.f5 Na5 28.Bc3 (28.Rc2 c6-/+) 28...Nc4-+ 29.Ra2 Re8 30.Ng1 (30.Kg2 Re3 31.Bb4 a5-+) 30…Re3 (30...Re3 31.Ne2 Na3-+) 0-1. Hasler,Ulrich - Spiegel,Ulrich, corr SOK-88-25, 1989.

13.Bb5 Qe6 14.Nd4 Nd4 15.Be8=+ Nc2 16.Bf7? Kf7 17.Qf3? Ne7?? 18.e4? Qb6?? 19.Ra2= Qe6 20.Nc3?? Nd4 21.Qh5–/+ Qg6 22.Qg6 Bg6 23.d3 Rd8 24.f4 Kg8 25.Ba1 Nb3–+ 26.Ne2 Rd3 27.f5 Bf7 28.f6? Bb6 29.Kh1? Nd2 (29...Nd2 30.Nf4 Nf1 31.Nd3 gf6–+; 29...Na1?! 30.fe7 Nb3 31.Nf4–+) 0–1. Cottarelli,Franco – Dopper,Johan, corr ICCF TT, 1990.

13.Nh4?? Qh4–+ 14.Bf3 Be4 15.Be4 Qe4 16.d3 Qg6 17.a4 Ndb4 18.Ra3 Rad8 19.d4 Ne5 20.Qe2 Ned3 21.Bc3 Nf4 22.Qf3 Nfd5 23.Bd2 c6 24.Rb3 Qc2 25.Qd1 Qd1 26.Rd1 b6 27.Na3 c5 28.Nc4 cd4 29.ed4 Nc6 30.Na5 Na5 31.Ba5 ba5 32.Rb7 Nc3 33.Rd3 Ne2 0–1. Dopper,Johan – Cornacchini,Gabriele, corr or03–027, 2003.

14.Qa4 Nb6 15.Qh4 Be4 16.Qg4 =.

14.Nd4 Nd4 15.Be8 Nc2 16.Bf7 Kf7 17.Qf3 Ne7 18.e4 Qb6 19.Ra2 Qe6 20.Nc3 Nd4 21.Qh5 Qg6 22.Qg6 Bg6 23.d3 Rd8 24.f4 Kg8 25.Ba1 Nb3 26.Ne2 Rd3 27.f5 Bf7 28.f6 Bb6 29.Kh1 Nd2 0–1. Cottarelli – Dopper, 1992.

15.Qb3 =.

15.d4 Nb6!? 16.Qc2 Rf4 =.

15.d4 Nb6!? 16.Qc2 Bg6 17.Bc6 bc6 +=.

17.Nh4 Qc6 18.Qa5 Rh4 19.gh3 Rh3 20.Rc1 –+.

19.Qa5 Rf3 20.Qe1 Nf4 21.Rc3 Nd3 22.Rd3 Rd3 23.Nd2 Be6 –+.

19.Qa5?? Rf3-+ 20.Qe1 Nf4 21.Rc3 (21.Rd1-+) 21...Nd3 22.Rd3 Rd3 23.Nd2 f6 24.f3 (24.Nf1-+) 24...Re8 25.Qf2 Rd2! 26.Qd2 Deflection from g3 26...Qg3 27.Kh1 Qf3 28.Kg1 Re2 (28...Re2 29.Qe2 Qe2 30.Re1 Qg2). Diener,Rudolf - De Visser,Arno, corr ICCF T/19-F, 1979.

19.Qa5 Rf3 20.Qe1 Nf4 21.Rc3 Nd3 22.Rd3 Rd3 23.Nd2 Kf8 (23...Be6!? 24.Qe2 Rb8 25.Nf1-+) 24.Rd1 (24.Nc4 Rb3 25.Bc3-+) 24…Re8 (24...Re8 25.Qe8 Ke8 26.Re1 Kd8-+) 0-1. Huber,HR – Schneider, corr DDR theme, 1981.

19.Qa5 Rf3 20.Qe1 Nf4 21.Nd2 Qh5 22.Nf1 –+.

19.fe3 Qg3.

13.Qb3 Nb6 (13...Qd6 14.Nc3 (14.Qb7? Rab8 15.Qa6 Rb2-+; 14.d4 Rab8 15.Rc1 a6 16.Ra2 Bg6 17.Nc3 Bc3= 0.00) 14...Nb6 15.d4= Rad8 16.Rfd1 a6 17.d5 Ne5= 0.12; 13...Qd7 14.Nc3 (14.Rc1) 14...Rad8 15.Rfd1 a6 16.Nd5 Qd5 17.Qd5 Rd5= 0.25) 14.d4 (14.Qb5 Bg6 15.Nd4 a6 16.Nc6 ab5 17.Ne7 Re7= 0.22; 14.Nc3 Rad8 15.d4 Qe6 16.Qe6 Re6 17.Rac1 Bg6= 0.00; 14.Rc1 a6 15.d4 Qd6 16.Bc3 Bg6 17.Ba5 Na5= 0.00; 14.Rd1 Qd6 15.d4 Nd5 16.Rc1 Rab8 17.Rc5 Red8= 0.00; 14.d3 Rad8 15.Rd1 Bg6 16.Nc3 Bf5 17.d4 Bc3= 0.03) 14...Rad8 15.Rd1 Rd5 (15...a6 16.Nc3 Bc3 17.Bc3 Nd5= 0.06) 16.Nc3 Bc3 17.Bc3 (17.Qc3 f5= 0.09) 17...Nd8 (17...Qe6= 0.03) 18.a4 c6 (18...a5 19.g4 Bg6 20.Ne5+/-) 19.a5 Nc8 (19...Bf3 20.Bf3 (20.gf3?! Rg5 21.Kh2 Qd6 22.f4 Nd5=+) 20...Rb5 21.Qc2+/-) 20.g4+/- Bg6 21.Ne5 Nd6 (21...Qg5 22.a6 b6 23.Bb4+=) 22.Be1 (better 22.a6!? Ne4 23.ab7 Nb7 24.Ra7+/- (24.Ng6?! hg6 25.Be1 Nd8+/-)) 22...Qh4 (22...Qe6 23.Ng6 Qg6 24.Bb4=) 23.Kg2 Ne6 24.f3 Qg5 (24...Qh6 25.a6 ba6 A) 26.Ng6?! Nd4 (worse 26...fg6 27.Bg3+/-) 27.Rd4 Rd4 28.ed4 Re2 29.Kf1 Nb5+=; B) 26.Bg3+/-) 25.h4 Qe7 (25...Bc2 26.Qc2 Qe3 27.Bf2 Nf4 28.Kf1 Qe2 29.Qe2 Ne2 30.Ke2+=) 26.Bg3 (26.Ng6?! fg6 27.Bg3 Kh8+=) 26...f6 (26...Nd4!? 27.ed4 f6+/-) 27.Ng6+- hg6 28.e4 Nb5 29.ed5 (29.ed5 Ned4 30.d6 Nb3 31.de7 Na1 32.Bc4 (32.Ra1?! Re7 33.Bc4 Kh7+-) 32...Kh7 33.Rd7+- (33.Ra1?! Re7 34.Bf2 a6+-)) 1-0. Kuehn,Peter - Diener,Rudolf, corr, 1975.

13.Nd4 Be2 14.Ne2 Rad8 15.d4 Bb6 16.Nbc3 Ne3 17.fe3 Qe3 18.Kh1 Nd4 19.Nd4 Bd4 20.Qf3 Qf3=+ 21.Rf3 c5 22.Rd1 c4 23.Rf4 Bc3 24.Rd8 Rd8 25.Bc3 b5 ½–½. Garbacki,M – Sokolowski,M, corr 1. AMM Poland, 1991.

12.Qa4 Ne5=+.

12.Qa4 Nf4 13.ef4? (better 13.Bd1 Bf3 14.Bf3=+) 13...Qe2-+ 14.Ne5 Ne5 15.fe5 (15.Be5 b5 16.Qb3 Be5 17.fe5 Re5-+) 15...Be5 (15...Bf5 16.Bd4 (16.ed6?? Qf1 17.Kf1 Bd3 18.Kg1 Re1) 16...Be5 17.Be5 Re5 18.f4-+) 16.Nc3? (16.Be5 Re5 17.Nc3 Qd2 18.Qg4 Qc3-/+) 16...Bc3 (better 16...Qd2 17.Qg4 Qb2-+ (17...Bc3?! 18.Bc3 Qc3 19.Rac1-+)) 17.Bc3-/+ Qe4?? (better 17...c5-/+) 18.Qe4+- Re4 19.f3 Rf4? (better 19...Bf3!? 20.Rf3 f6+-) 20.fg4 Rg4 21.Rae1 Kf8 (21...f6 22.Re7 Rc8 23.Rfe1+-) 22.Bb4 Kg8 23.Re7 f6 24.Rfe1 a5 25.Bc5 (25.Bc3!? Rc8+-) 25...b6 26.Bf2 Rc8 27.Rc1 c5 28.Rc3 Kf8? (28...Rd8 29.h3 Rg5+-) 29.Rb7 Rc6 (29...Rg5 30.Rb6 c4 31.Rb7+-) 30.Rd3 (30.Rb6 Rb6 31.Bc5 Kf7 32.Bb6 Ra4+-) 30...Re4 (30...Ke8+-) 31.Rd8 Re8 32.Rdd7 c4 (32...h5+-) 33.Rf7 Kg8 34.Rg7 Kh8 35.Rh7 Kg8 36.Rbg7 (36.Be3!? Re3 37.de3 Rc5+-) 36...Kf8 37.Rb7 Kg8 38.h4 c3 39.dc3 Rc3 (39...Re5 40.Rhd7 Rc8 41.Rg7 Kh8 42.Rh7 Kg8 43.Bg3+-) 40.Bb6 (40.h5 Re5 41.Bh4 Rd5 42.Bf6 Rc1 43.Kh2 Rh1 44.Kh1 Rd1 45.Kh2 Rh1 46.Kh1 b5 47.Rh8) 40...Re6 (40...Rc1 41.Kh2 Rc4 42.Kh3+-) 41.Bd4 (better 41.Rbg7 Kf8 42.Ba5 Rc1 43.Kf2 Rc2 44.Kf3 Rc4+-) 41...Rc1 (41...Rg3 42.Rhd7 Re8+-) 42.Kh2 Rc4 43.Bf2 (43.Rhd7 Kf8 44.Bf6 Rc5 45.Rh7 Rh5 46.Rh5 Re7 47.Re7 a4 48.Rh8) 43...Re2 (43...Rd6 44.Rbg7 Kf8 45.Ra7+-) 44.Rhg7 Kh8 45.Rgd7 Rc8 (45...Rg4 46.Kh3 Ree4+-) 46.Bd4 (46.Bc5 Rg2 47.Kg2 Rg8 48.Kf3 Rg6 49.Bd4 Rg7 50.Rg7 a4 51.h5 f5 52.Rb8) 46...Re6 (46...Re4 47.Bf6 Kg8 48.Rh7 Rc7 49.Rbc7 Rh4 50.Rh4 Kf8 51.Rh8) 47.Rf7 (47.Bc5 Re7 48.Re7 Kg8 49.Rg7 Kh8 50.Rh7 Kg8 51.Rbg7) 47...Kg8 48.Bf6 a4 (48...Rf6 49.Rf6 Rc1 50.h5 Rc8 51.h6 Rd8 52.Rg6 Kh8 53.Rgg7 a4 54.Rh7 Kg8 55.Rbg7 Kf8 56.Rh8) 49.Rg7 Kf8 50.Rbf7 (50.Rh7 Rc7 51.Rbc7 Re7 52.Rhe7 Kg8 53.Re8) 50...Ke8+- 51.Bg5 Rc2 52.Ra7 Kf8 53.Rgc7 (53.Rh7 Kg8 54.h5 Rcc6 55.Rhg7 Kf8 56.Rgb7 Re1 57.Rf7 Kg8 58.h6 Rh6 59.Bh6 Re8 60.Rg7 Kh8 61.Rh7 Kg8 62.Rag7 Kf8 63.Rh8) 53...Re8 (53...Rc7 54.Rc7 Re2+-) 54.Rc2 (54.Bh6 Kg8 55.Rg7 Kh8 56.Rh7 Kg8 57.Rag7 Kf8 58.Rh8) 54...Kg8 (54...Rb8 55.Rcc7 Re8 56.Bh6 Kg8 57.Rh7 Re1 58.Rag7 Kf8 59.Rh8) 55.Rcc7 Re4 (55...Kf8 56.Bh6 Kg8 57.Rg7 Kh8 58.Rh7 Kg8 59.Rag7 Kf8 60.Rh8) 56.Rc8 (56.Rc8 Re8 57.Re8; 56.Ra8 Re8 57.Re8) 1-0. norba94 (2390) - Skatchess (2325), Rated Blitz game, lichess.org, 2016.

12.Qb3 Qd7 13.Nc3 Be6 14.Qc2 Nf6 (14...Nc3 15.Qc3 f6 16.d4=) 15.Nb5 Bf5 16.d3 Be7 17.Rab1 a6 18.Nbd4 Nd4 19.Nd4 (worse 19.ed4 Be6-/+) 19...Bg6 (19...Bg4 20.Nf3 Qc8 21.Rfc1+=) 20.Nf3 c6 (20...b5 21.Ne5 Qd6 22.Bf3+=) 21.Ne5 Qc7 22.Ng6 hg6 23.Bf3 Bd6 24.h3 Qe7 Attacks the isolani on a3 (24...Re7 25.Rfc1+=) 25.a4 Rad8 26.Rfc1 Nh7 27.Qc4 Ng5 28.Bg4 Ne6 29.Bc3 (29.Bc3 Ba3 30.Rd1+=; 29.Ba1 Rd7+/-) 1-0. Dopper,Johan C - Woschkat,Karl_Heinz, corr, 1998.

12.Qb3 Qe6 13.h3= Bf5 14.Nc3 Nf4 15.Bc4 Nh3 16.gh3 Qg6 17.Kh1 Na5 18.Qb5 Bh3 19.Rg1 Qh6 20.Rg2 Bd7 21.Rh2 Bb5 22.Bf7 Kf7 23.Rh6 gh6 24.Nb5 Nc4 25.Rb1 a6 26.Nd6 cd6 27.d3 Nb2 28.Rb2 b5 29.Nd4 Rg8 30.Nf5 Ke6 31.Nd4 Kf6 32.Ne2 Rac8 33.Kh2 Rc5 34.Nf4 Rgg5 35.Ne2 Rg4 36.Ng3 Ke6 37.Rb3 Rc2 38.Ne4 d5 39.Rc3 Rc3 40.Nc3 d4 41.Nb1 a5 42.e4 Rg5 43.Nd2 Rc5 44.Nb3 Rc3 45.Nd4 Ke5 46.Nb5 Rd3 47.a4 Ke4 48.Kg2 Kf5 49.Kh2 Kg4 50.Kg2 h5 51.Kh2 Kf3 52.Kh3 Rd1 53.Kh4 Rh1 54.Kg5 h6 55.Kh6 h4 56.Nd4 Kf2 57.Nc6 Rg1 (57...Rg1 58.Ne5 h3–+) 0–1. Pierred (2145) – abs1_deep junior (2505), Rated game, 2m + 0s, 2005.

12.Qb3 Qe6 13.h3 Bf5 14.Nc3 Nf4 15.Qe6 Ne2 (worse is 15...Ne6 16.d4 Na5 17.Nh4+=) 16.Ne2 Be6 17.Rfc1 Rad8 18.Ned4 Nd4 19.Nd4 Bd7 20.a4 c6 21.a5 Rb8 22.Nf3 Rbc8 23.Ba3 Bc7 24.Rab1 b6 25.d4 b5 26.a6 Be6 27.Rc3 f5 28.Bc5 Bd5 29.Ne1 (worse is 29.Ba7 Ra8 30.Bc5 Ra6+=) 29...Re6 30.Nd3 Rg6 31.g3 (worse is 31.Ba7 Bg2 32.f4 Ra8–+ (32...Bh3?! 33.Kh2–/+)) 31...Rh6 32.h4 g5 33.Be7 gh4 34.Bg5 Rg6 35.Bh4 Kf7 36.Kf1 Bc4 37.Kg1 Bd6 38.Kg2 Re6 39.Kg1 h6 40.Kh2 Ree8 41.Kg1 Rb8 42.Ra1 Bd5 43.Rcc1 b4 44.Nb2 b3 45.Kf1 c5 46.Nc4 Bf8 47.Rab1 b2! (47...b2 48.Nb2 Ba2–+) 0–1. Wolf,Wolfgang (2285) – Brodda,Wolfgang (2205), GER–ch37 V8 email, 2005.

12.Bb5 Rab8 13.d4 a6 14.Bc4 Nf6 15.Nbd2 Ne4 (15...Rbd8 16.Qc2=) 16.Qc2 Nd2 17.Nd2 Qh4 The mate threat is Qxh2 18.g3 Qh5 19.Rfe1 Bf5 20.e4 Bh3 21.e5 Be7 22.Rab1 (22.d5 Na5+=) 22...Bg5 23.Bf1 (better 23.f4!? Be7 24.Be2=) 23...Bd2=+ 24.Qd2 Ne7 (24...Bf1 25.Rf1 Rbd8 26.Qc2=+) 25.Be2= Qf5 26.Bf1 (26.d5 Rbd8 27.Bd3 Qh5=) 26...Nd5 (26...Bf1 27.Rf1 Nd5 28.Qa5-/+) 27.Bg2 (27.Bd3 Qh5=) 27...c6 (27...Bg2!? 28.Kg2 Rbd8-/+) 28.Be4= Qh5 29.Qe2 Bg4 30.f3 Be6 31.Qc2 h6 32.Re2 Qg5 33.Bc1 Qe7 34.f4 Bg4 35.Rf2 White prepares f5 35...Red8 36.Kg2 Qd7 (36...Bh5!?+=) 37.f5+/- Ne7 (37...f6 38.h3 Bh5 39.g4 fe5 40.de5+/-) 38.Be3 (38.h3 Bf5 39.Bf5 Nf5 40.Rf5 Qd4+/-) 38...g6? Attacking the backward pawn on d4 (38...Nd5 39.Bf4+=) 39.e6 (better 39.fg6!? fg6 40.Bg6+-) 39...fe6+= 40.fg6 Nf5 Increasing the pressure on the isolated pawn on d4 41.Bf4 Qd4 (41...Rbc8!?+=) 42.Bf5?? (better 42.h3 Ne3 43.Be3 Bh3 44.Kh3 Qe3 45.Rf7+-) 42…Bf5-+ (42...Bf5 43.Rd1 Qe4 44.Qe4 Be4 45.Kh3 Rd1 46.Bb8 Bg6-+) 0-1. Gross,Wilhelm - Merten,Rainer, xvii/25, 1989.

12.Bb5 Bd7 13.Qb3 (13.d4 a6 14.Bd3 Nf6=) 13...Nf6=+ 14.d4 a6 15.Bd3 Na5 16.Qc2 Bb5 17.Nbd2 Bd3 18.Qd3 Ne4 (18...Qe6 19.Rfe1=) 19.Rfe1 (19.d5 Nd2 20.Nd2 Qh4+=) 19...f5 20.Nc4 (20.Bc3 Nc6=) 20...Nc4 21.Qc4 Qf7 Black prepares f4 22.Rac1 Qc4 23.Rc4 Rad8 24.Rec1 c6 25.R1c2 (25.R4c2 Kf7=+) 25...f4 (25...Kf7 26.Kf1=+) 26.Bc1 (26.ef4 Bf4 27.Bc1 Bc1 28.Rc1 Nd6=) 26...fe3 27.fe3 Rd7 28.a4 Rf7 29.Ra2 g5 30.Nd2 Nd2 (30...Nf2 31.Nf3 Nh3 32.gh3 Rf3 33.Kg2=+) 31.Bd2=+ Ref8 (31...g4 32.g3=+) 32.Ra1 Rf2 33.Bb4 Bb4 34.Rb4 b5 (34...Rc2 35.Rb7 Rff2 36.h4=+) 35.ab5= cb5 36.Rbb1 Rd2 37.Rf1 Rf1 38.Rf1 (38.Kf1 b4 39.Rb1 a5-/+) 38...b4-/+ 39.Rb1 a5 40.h3 Kf7 41.Kh2 Rd3 42.Ra1 Ra3 (worse 42...Re3 43.Ra5 Rd3 44.Rg5 Rd4 45.Rb5=+) 43.Re1 b3 44.Kg3? (better 44.Rb1-+) 44…b2 (44...b2 45.Rb1 Re3 46.Kf2 Rb3-+) 0-1. Chwojnicki,Lucjan - Beisser,G, corr ICCF EU/M/GT3 (year?).

12.Nc3 Nb6 13.Nb5 Rad8 14.Rc1 a6 15.Nd6 Qd6 (worse is 15...cd6 16.Ba6 ba6 17.Rc6+/–) 16.d4 Re6 (16...Qg6 17.Re1=) 17.Qc2 Rh6 (17...Qd5 18.Rfd1=) 18.h3+= Bh5 19.Rfd1 (19.e4 Bf3 20.Bf3 Rd7+=) 19...Qe7 20.Ne5 (20.Qc5 Rdd6+=) 20...Be2= 21.Nc6 (21.Qe2 Ne5 22.de5 Rd1 23.Rd1 Re6=) 21...Rc6 22.Qe2 Rg6 (22...Re6 23.Rd3=) 23.Rc5 ½–½. Raue,Thorsten (1835) – Schoepper,Oliver (1810), Muensterland Verbandsklasse–B, 2007.

12.Nc3 Nb6 13.Nb5 Rad8 14.Qc2 Ne5 15.Be5 Be5 +=.

12.Nc3 Nb6 13.Nb5 Rad8 14.Nd6 Rd6= 15.a4 Rh6 (15...Bf3 16.Bf3 Nc4 17.Bc3=) 16.h3 Be6 17.a5 Nc4 18.Bc3 Nd6 19.Qa4 g5? (better is 19...Rg6!? 20.Kh1 Qd7=) 20.Nd4 (20.a6 Bd7 21.ab7 Nb7+–) 20...Rh4 (20...Bd7!? 21.Nc6 Bc6+/–) 21.Nc6+– bc6 22.Qc6 Ne4 23.Bd4 Nd2 (23...Rd8 24.Rfc1 Rd4 25.ed4+–) 24.Bf6! Qf6 25.Qe8 Kg7 26.Rfd1 g4? (better is 26...Ne4 27.Bf3 Nc3+/–) 27.Ra4 (27.Rd2?! Qa1 28.Rd1 Qa5+=) 27...gh3 28.Rh4?? (better is 28.Rd2 h2 29.Kh1 Qf2 30.Ra1 Qe3 31.Rd7+–) 28...Qh4= 29.Qc6?? (better is 29.Qb5 Ne4 30.Qe5 Kg8 31.g3 h2 32.Kh1 Nf2 33.Kg2 h1Q 34.Rh1 Qh1 35.Kf2 Qh2 36.Ke1 Qg1 37.Kd2=) 29...h2 (better is 29...Ne4 30.Qe4 Qe4 31.Bf3–+) 30.Kh1 Ne4 31.Rf1 Nf2 32.Rf2 Qf2 33.Qc3 Kg8 34.Kh2 Qe2 35.Qc5 Qg4 36.Qa7 Bd5 37.Qb8 Kg7 38.Qb2 Kg6 39.a6 Qh4 40.Kg1 Qe1 41.Kh2 Qe3 42.Qc2 Qe4 43.Qf2 Qe5 44.Kg1 f5 45.a7 f4 46.Qh4 Qe3 47.Kh1 Qg3 (47...Qg3 48.Qg3 fg3–+) 0–1. Letzelter,Jean Claude – Dussol,Pierre, Nimes FRA, Veteran Ch, 2014.

12.Nc3 Bf3 13.Bf3= Qh4 14.h3 Nde7 15.d4 (15.Qb3 Rab8=) 15...Rad8 16.Nb5 a6 (16...Be5 17.Qb3 a6 18.de5 ab5 19.Qb5+/–) 17.Nd6 Rd6 18.Qb3 Rg6 (18...b5 19.d5 Na5 20.Qc3+–) 19.Kh1 (19.d5 Na5 20.Qc2 Nc4+=) 19...h5 (19...b5 20.d5 Na5 21.Qc2=) 20.Rac1 Nd8 (better is 20...Rb8!?+/–) 21.Rc7+– Ne6 (better is 21...b5+–) 22.Rb7 Ng5 23.Rb8 Nh3 24.Re8 Kh7 25.Rd1 Nf2= 26.Kg1 Nh3 27.Kh1 Nf5?? 28.e4+– Ng3 29.Kh2 Ng5 30.Kg1 Nf3 31.Qf3 Rf6 32.Qf6 Qf6 33.Re1 Qc6 34.Re5 Qc2 35.Ba1 Qd2 36.Rb1 Qe3 37.Kh2 Qf4 38.Rb3 Ne2 39.g3 Qf2 40.Kh3 Ng1 41.Kh4–+ Qh2 42.Kg5 f6 43.Kf5 fe5 (44.Ke5 Qa2–+) 0–1. Reyes,ME – Retamar, corr 3GMM–40, 1996.

12.Nc3 Nf6 13.Qc2 Bf3 (13...Ne5!? 14.Nd4 Be2 15.Nce2 Neg4=) 14.Bf3+= Nd8 15.Rac1 (15.Nb5!?+=) 15...c6= (worse is 15...Ba3 16.Ba3 Qa3 17.Nb5+/–) 16.Rfe1 Ne6 (better is 16...Ba3 17.Ba3 Qa3+=) 17.d4 (17.Ne4 Ne4 18.Be4 Ng5=) 17...Qd7?? (better is 17...Nd4 18.Qd1 Nf3 19.Qf3 Ba3 20.Ba3 Qa3–+) 18.h3 Rac8 19.Qb1 Ng5 20.Bg4?? (better is 20.Bd1=) 20...Ng4–+ 21.hg4 Qg4 22.Kf1 Qh4 23.f4 Bf4! 24.ef4 Qf4 25.Kg1 Qd4 26.Kh1 Qh4 27.Kg1 Qg3 28.Re8 Re8 29.Rf1?? (29.Qf5 g6 30.Ne2 Qg2 (30...gf5?! 31.Ng3 f4 32.Nh5=) 31.Kg2 gf5–+ (31...Re2 32.Kf1 gf5 33.Ke2+=)) 29...h5 (better is 29...Nh3 30.Kh1 Nf2 31.Rf2 Qf2–+) 30.Qf5–/+ h4 31.Bc1 (31.Kh1 Re1 32.Re1 Qe1 33.Kh2 Qd2–+) 31...Re5–+ (31...Qc3?! 32.Bg5 Qd4 33.Kh1+=) 32.Qc2?? (better is 32.Qc8 Kh7 33.Bf4 Nf3 34.Rf3 Re1 35.Rf1 Rf1 36.Kf1 Qf4 37.Ke2 Qe5 38.Kd2 Qg5 39.Kd1 Qg2 40.Qb7–+) 32...Nh3 33.Kh1 Re1 34.Qf5 Rf1 (34...Qc3?! 35.Qf7 Kh7 36.Qh5 Kg8 37.Qf7 Kh8 38.Qh5 Kg8 39.Qf7=) 35.Qf1 Nf2 (35...Qc3?! 36.gh3 a5 37.Kh2–+) 36.Kg1 h3 (36...h3 37.Qf2 h2 (37...Qc3?! 38.Bb2 Qd3 39.gh3+=) 38.Kh1 Qf2 (38...Qc3?! 39.Qe3 Qe3 40.Be3=) 39.Kh2 Qh4 40.Kg1 Qe1 41.Kh2 Qc1–+; 36...Qc3?! 37.Kf2 c5 38.Qe1 Qf6 39.Kg1–/+) 0–1. mozart_amadeus (1695) – edandevy (1685), gameknot.com, 2012.

12.Bc4? Bf3–+ 13.Qf3 Qh4 14.g3? (14.Rc1 Qh2 15.Kf1 Qh1 16.Ke2 Qc1 17.Qf7 Kf7 18.Bd5 (18.Bc1?? Nce7–+) 18...Ke7 19.Bc1–+) 14…Qc4 0–1. Cornacchini,Gabriele – Nemeth,Laszlo, RL–2007–0-00092, 2007.

12.d4 Ne3 13.fe3 Qe3 14.Rf2 Bf3 15.Bf3 (worse is 15.gf3 Bh2 16.Kf1 Bf4–/+) 15...Bh2! 16.Kf1 (16.Kh2 Qf2 Deflection (16...Qf2 Overloading)) 16...Bg3 17.Re2 Qh6 18.Re8?? (18.Re4 f5 19.Re5 Ne5 20.de5–+) 18...Re8 19.Bh5 (19.Be4 Re4 20.Kg1 Qh2 21.Kf1 Qh1) 19...Qh5!! 0–1. Pietras,Zbigniew – Budrewicz,Henryk, Warszawa POL, City Ch–B, 2013.

12.Re1 Rad8 13.Qb3 Nb6 14.d4 Be6 15.Qc2 Bg4 (15...Nd5 16.e4 Nf4 17.Bb5=) 16.Nbd2 (16.Qb3 Qe4=+) 16...Nb8 (16...Qe6 17.e4 Re7 18.d5 Nd5 19.ed5 Qd5 20.Qc3+-) 17.Bd3 h6 18.h3 (18.Bh7 Kh8 19.Be4 c6=) 18...Be6 19.e4 (19.Ne4 Bc4 20.Bc4 Nc4+=) 19...c6 20.e5 Bc7 21.a4 (21.Bh7 Kh8 22.Bd3 Nd5=) 21...Nd5 22.Ba3 Qd7 23.Ne4 (23.Bc5=) 23...Nf4 (23...Ba5!? 24.Nc5 Qc8=) 24.Nc5+= Qc8 25.Ne6 (25.Bh7 Kh8+=) 25...Qe6 26.Bf5 Qd5 27.Rab1 (27.Qe4 Qe4 28.Re4 Nd5+=) 27...b6 (27...Ba5 28.Re4 Ne6 29.Rb7+-) 28.Bh7 Kh8 29.Be4 Qd7 (29...Qe6 30.a5+/-) 30.Rbc1 (30.a5 Nd5+/-) 30...a6 (30...Nd5 31.Bf5 Re6 32.a5+-) 31.d5 (31.Bc6 Nc6 32.Qc6 Nd3 33.Qc7 Ne1 34.Ne1 Qc7 35.Rc7 Rd4+/-) 31...Be5 (31...Nd5 32.Bf5 Re6 33.Nd4+/-) 32.dc6 (32.Ne5 Re5 33.dc6 Qc7+=) 32...Qc7+= 33.a5 (33.a5 b5 34.Ne5 Re5 35.Bb2+=). Pleschke,Helmut - Bergner,Thomas, SEV, 2001.

12.Re1 Rad8 13.d4 Ne3 (13...Nb6 14.Nc3=+) 14.fe3 Qe3 Black gets in control. 15.Kf1 Qh6 16.Nbd2 Bf4 (better 16...Bh2 17.Nh2 Be2 18.Re2 Qh2 19.Re8 Re8=) 17.Kg1?? (better 17.Bc4=) 17...Nd4-+ 18.Nf1 (18.Nd4 A deflection 18...Bh2 Demolition of pawn structure) 18...Nf5?? (better 18...Nf3 19.Bf3 Bh2 (19...Rd1?? 20.Re8) 20.Nh2 Rd1 21.Rad1 Re1 22.Re1 Qb6 23.Kf1 Bd7-+) 19.Qc2 Ne3 20.Ne3 (20.Qc3!?=+) 20...Bf3-/+ Threatening mate... how? (20...Re3?! 21.Bf1=+; 20...Be3?! 21.Kh1=) 21.Nf1 Qb6 22.Kh1 Be4 23.Qc3 (23.Bd3 Bd3 (worse 23...Rd3 24.Qd3 Qg6 25.Qf3+/-) 24.Qd3 Qb2-+ (worse 24...Rd3 25.Re8)) 23...Be5 24.Qe5 Re5 25.Be5 Qf2 Threatening mate: Qxg2 26.Ne3 Re8 (26...Qe3?! 27.Bf3 Qc5 28.Be4-/+) 27.Bd4? (better 27.Bg3!? Qe3 28.Bf3=+) 27...Bg2-+ 28.Ng2 Qd4 29.Bf3 Do you see the mate threat? 29...Re1 30.Re1 g6 ½-½. Sitnikov,Anton (2460) - Krivoborodov,Egor (2355), It (open) Moscow (Russia), 2006.

12.Re1 Rad8 13.d4 Ne3 14.fe3 Qe3 15.Kf1 Qh6 16.Nbd2 Bh2 17.Nh2 Be2 18.Re2 Qh2 19.Nf3 Qf4 20.Re8 Re8 21.Qd2 Qf5 22.Re1 Re1 23.Ke1 h5 24.Bc1 Qg4 25.Qg5 f6 26.Qd5 Kh7 27.Kf1 h4 28.Qc4 h3 29.Qd3 g6 30.gh3 Qh3 31.Kf2 Qg4 32.d5 Ne7? 33.d6+– cd6 34.Qd6 Nf5 35.Qc7 Ng7 36.Bb2 Qe6?? 37.Ng5+– (37.Ng5 Kh6 38.Ne6 Ne6 39.Qc4 Ng7 40.Qf4 g5 41.Qf6 Kh5 42.Kg3 Nf5 43.Qf5 Kh6 44.Qe6 Kh5 45.Bg7 b5 46.Qf7#) 1–0. Jamieson,Ian (2005) – Kuenitz,Klaus (1900), Gibraltar Challengers–B, 2006.

12.Re1 Rad8 13.d4 Ne3 14.fe3 Qe3 15.Kf1 Qh6 16.Nbd2 Bh2 17.Nh2 Qh2?? (better 17...Be2 18.Re2 Qh2 19.Re8 Re8=) 18.Bg4+- (18.Bg4 Re1 19.Qe1 Qh1 20.Kf2 Qh4 21.Kf3 Qf6 22.Kg3 Nd4 23.Bd4 Qd4 24.Nf3 Qd6 25.Qe5 Qe5 26.Ne5+-) 1-0. Daatselaar,Jan Bart van (2200) - Luca,Arie M. A (2200), H J Mostert Memorial Webserver Open, 2006.

12.Re1 Nd8 13.Qa4 (13.d3 Ne6=) 13...Bf5 (13...Be6 14.Qd4 f5 15.Nc3=) 14.Nc3 Nc3 15.Bc3 c6 (15...a6 16.e4 Bd7 17.Qc2=) 16.d3 h6 (16...b5 17.Qc2=) 17.e4 Bg6 18.Qb3 Ne6 19.g3 (19.Qb2 Rad8=) 19...Nc5 (19...Rad8 20.Rab1 b5 21.Bb2=) 20.Qc2 Rad8 21.a4 (21.Rab1 Qe6=) 21...Qc7 (21...Bh5 22.Nd4 Be2 23.Nf5=) 22.a5 ½-½. Schirmer,Michael - Rau,Johann, corr TKM/A009, 1999.

12.Re1 Qe6 13.Nc3 Nc3 14.Bc3 a6 15.h3 Bf5 16.d3 Rad8 17.e4 Bg6 18.Qd2 b6 19.Qb2 Bh5 20.Rad1 (worse is 20.Bg7 Bf3 21.Bf3 Ne5–/+) 20...Bf8 21.e5 Qd5 22.d4 b5 23.g4 Bg6 24.Nh4 Be4 25.f3 Bg6 26.Bf1 Ne7 27.Bg2 (worse is 27.Ng6 Ng6 (worse is 27...fg6 28.Qc2=) 28.Ba5 Nh4–/+) 27...Qc4 28.f4 (worse is 28.Ng6 Ng6 (28...fg6?! 29.f4=) 29.Rc1 c5+=) 28...h5 29.f5 Bh7 30.Bb4 1–0. Degterev,Pavel (2275) – Adorjan,Attila, IECG, 2006.

12.Re1 Nf4 13.Bf1 (13.ef4 Bf3 14.gf3 Qh4=) 13...Ne6 (13...Qe4 14.Nc3 Qg6 15.ef4 Re1 16.Qe1 Bf3 17.Qe3=) 14.h3+= Bh5 15.Be2 Nc5 (15...Rad8 16.d3+=) 16.d4= Ne4 17.Bd3 (17.Qb3 Rab8=) 17...Rad8 18.Be4 Qe4 19.Nbd2 Qd3 20.Qb1 Qb1 21.Rab1 Bg6 (21...f5 22.Nc4=) 22.Rbc1 (22.e4 f6+=) 22...f6 23.Nb3 Bf8 24.Nbd2 Rd5 (24...Be7 25.e4 f5 26.ef5 Bf5 27.Nc4=) 25.Ra1 (25.e4 Rd7+=) 25...Nd8 (25...f5 26.Rab1=) 26.Nh4 Bf7 27.e4 Rd7 28.Nhf3 Ne6 29.Re3 c6 ½–½. Morley,Paul (2275) – Lundberg,Erland (1965), WS/M/169 ICCF, 2008.

12.Ne1 Be2 13.Qe2 Rad8 14.Nf3 Ne5 (14...Qe6 15.Qb5=+) 15.Ne5 (15.Be5 Be5 16.d4 Bd6=+) 15...Be5 16.d4 Bd6 17.Nd2 Nf4 (17...Qh4 18.Nf3 Qh5 19.Rfe1-/+) 18.Qc4 (18.Qf3 Nd3 19.Bc3 c5= (19...Ba3? 20.Qf5+-)) 18...Nh5 (18...Ng6 19.Rfd1=) 19.Nf3 Qe4 20.Rac1 Nf6 21.Qc2 (21.Bc3 Nd5 22.Bb4 Nb4 23.ab4 c6=) 21...Qd5 22.Qc4 Qh5 23.h3 Re6 24.Rc2 Ne4 (24...b5 25.Qb3=) 25.d5= Re7 26.Qd4 The mate threat is Qxg7 26...f6 27.Nd2 (27.Rb1 c5 28.dc6 Bh2 29.Nh2 Rd4 30.Bd4 bc6 31.Rc6 Qe2=+) 27...Ng5 (27...c5 28.Qd3 Nd2 29.Rd2=) 28.h4 (better 28.Rfc1!?=) 28…c5-/+ (28...c5 29.dc6 Bh2 30.Kh2 Rd4 31.Bd4 Qh4 32.Kg1 bc6 33.Rc6 Qg4-/+). Cornacchini,Gabriele - Dunn,Carl, IECC, 1998.

12.h3 Bh5 13.Qb3 Nb6 14.d3 (14.Nc3 Qe6 15.Qe6 fe6+=) 14...Ne5 15.Be5 Be5 16.d4 Bd6 17.Nc3 c6 18.a4 Rab8 19.a5 Nd7 20.Nd2 Be2 21.Ne2 Nf6 22.Rfc1 h6 23.a6 c5 24.ab7 Rb7 (24...Qb7? 25.Qb7 (worse 25.dc5 Bh2 26.Kh1 Qc7+/-) 25...Rb7 26.dc5+-) 25.Qa4 cd4 26.Nd4 Qd7 27.Qd7 Rd7 28.g3 g6 29.Kg2 Kg7 30.N2b3 Ne4 31.Ra6 Rb8 32.h4 Be5 33.Rc2 Bd4 34.Nd4 Rb6 35.Rb6 ab6 36.Rb2 Rd6 37.h5 Nc5 38.hg6 Kg6 39.Nf3 Re6 40.Rb4 Nd3 41.Rg4 Kf6 42.Nd4 Re8 ½-½. Degterev,Pavel (2545) - Andriuschenko,Nikolay (2490), Memorial Bernstein A, 2007.

12.h3 Bh5 13.Re1 Rad8 14.Qb3 Na5 15.Qa4 b6 16.Nc3 Qe6 17.Nd4 Qe5 18.f4 Nf4?? (better is 18...Nc3 19.Bc3 Qd5+=) 19.ef4+– Qf4 20.Bh5 Qh2 21.Kf1 Qh1 22.Kf2 Bg3 23.Kg3 Re1 24.Nd1 f5 (24...Qf1 25.Ne3 Qh1 26.Qd1 Rd1 27.Rd1 Qd1 28.Bd1+– (28.Nd1?! c5+–)) 25.Nf5 (25…g6 26.Nh6 Kf8 27.Qf4 Ke7 28.Qf6 Kd7 29.Bg4 Ke8 30.Qf7) 1–0. Seack,Ingo – Sternik,Ryszard, corr 3GMM–13, 1995.

13.Nc3 Na5 14.Qc2 Nac4 15.Nb5 Nb2 16.Nd6 Qd6 17.Qb2 c5 (17...Be6 18.d4=) 18.d4= cd4 (18...c4 19.Rfc1=) 19.Rfd1 Bf3 20.Bf3 d3 21.Qd4 Rad8 22.Rd3 Qe7 ½–½. Dopper,Johan (2195) – Gutsche,Dieter (2410), EM/M/A110 ICCF Email, 2000.

13.Nc3 Be6 14.Qc2 Nc4 15.Bc1 a6 (15...Na3 16.Qa4 b5 17.Nb5 Nb5 18.Bb5+-) 16.d4 N6a5 (worse 16...Na3 17.Ba3 Ba3 18.d5+-) 17.e4 White plans d5 17...Na3 (worse 17...Ba3 18.d5 Bc1 19.de6+=) 18.Ba3 Ba3 19.d5 Bg4 20.d6 Qd6 21.e5 (21.e5 Qc5 22.Ng5 Be2 23.Qh7 Kf8 24.Ne2 Qe5 25.Nd4 Qg5 26.Nf5+/-) 1-0. Korchut,Adam (1990) - Hrubaru,Mircea (2065), RA-2010-0-00089, 2010.

13.d4 Na5 14.Qc2 Nd5 (14...Qe6 15.Nbd2=) 15.Nc3 White gets strong initiative 15...c6 16.h3 Be6 17.Bd3 Nf6 (17...h6!?=) 18.e4+/- Bb3 19.Qb1 Nh5 (19...Bf4 20.Ne2 Bc7 21.e5+/-) 20.e5 Bc7 21.Bc1 (21.Bh7 Kh8+/-) 21...g6 22.g4 Ng7 23.Ne4 Rec8 24.Bg5 Qf8 25.Bd2 Bd5 (25...Be6 26.Ba5 Ba5 27.Qb7+/-) 26.Nf6+- Kh8 27.Bb4 (27.Nd5 cd5 28.Qb5 Nc4+/-) 27...Qd8 28.Qc1 (28.Qc1 Ne8 29.Nd5 cd5 30.Qf4+-) 1-0. Knetsch,Peter - Herzog,Klaus, corr, 1998.

13.d4=+ Rad8 14.Nbd2 Be6 15.Qd3 =+.

13.d4 Rad8 14.Nbd2 Bf5 15.Bb5 Qd7 (15...Bd7=) 16.d5 (better 16.Rac1!?+=) 16...Nd5-/+ 17.Nd4 (17.Rfc1!?-/+) 17...Nd4 18.Bd4 c6 19.Bc4 Be5 20.Be5 Re5 21.Nf3 Ree8 22.Nd4 Bg6 23.Rfd1 Qe7 24.Rac1 Nb6 25.Bf1 Be4 26.Qc3 Nd5 27.Qa5 Nf6 28.f3 Bg6 29.e4 h6 30.Rd2 Rc8 31.Rcd1 Bh7 (31...a6 32.Nc2-/+) 32.Rb2 (32.Qa7 Ra8 33.Qb6 Ra3=) 32...b6 33.Qc3 White terminates the opponent with strong threats 33...Qe5 34.Rc2 Increases the pressure on c6 34...c5 35.Nb5 Qc3 36.Rc3 Re7 37.Rcd3 (37.Bc4 Kf8=) 37...Bg6 38.Nd6 Rd8 39.Nf5 Rd3?? (better 39...Red7 40.Rd7 Rd7 (worse 40...Nd7 41.Bb5+/-) 41.Rd7 Nd7 42.Ne7 Kf8=+) 40.Ne7+- (40.Ne7 Kf8 41.Ng6 (41.Rd3?! Ke7 42.Kf2 c4+/-) 41...fg6 42.Bd3+-) 1-0. Brenner,Sabine - Paehtz,Elisabeth, BL9495 (Women), 1995.

13.d4=+ Rad8 14.d5 Ne5 15.Nbd2 Nf3 16.Bf3 Qh4 =+.

13.d4 Qe6 14.Qe6 Be6 15.Nc3 Na5 16.Nb5 Bc4 17.Rfe1 Na4 18.Bc3 Nc3 19.Nc3 Be2 20.Re2 c6 21.a4 f6 22.Kf1 ½–½. Simmelink,Joop Theo – Rosner,Dirk, corr Kuhlmann mem, 1999.

13.h3 Be6 14.Qc2 Qd7 15.Rc1 Bh3 (better 15...Rad8=+) 16.gh3+/- Qh3 17.Qc3 (17.d4!?+/-) 17...Re5 18.Ne5 Be5 19.Qe5 Ne5 20.Be5 Re8 (20...c6 21.d4=) 21.Bg3 (21.Bc7 Nd5 22.Bd6 Qe6+/-) 21...Re6 (better 21...c6!?=) 22.Bf1 (22.Rc7 Rh6 23.Bf3 Rg6 24.Rb7 Qf5+-) 22...Qg4 23.Nc3 (better 23.Rc7!? Qf3 24.Bc4+/-) 23...h5 (23...c6 24.Bg2=+) 24.Kh2 h4 (24...c5!?=) 25.Bc7+/- Qf3 26.Nd1 Rg6 (26...Nd5 27.Bg2 Qh5 28.Bb8+/-) 27.Bh3 Nd7 (27...Rc6 28.Bg2 Rc1 29.Rc1+- (29.Bf3?! Ra1 30.Kh3 g5+/-)) 28.Rc4 (better 28.d4+/-) 28...Qd5?? (28...Rc6 29.Bg2 Qe2 30.Rc6 (30.Bc6? Qc4 31.d4 Qc6-+) 30...bc6 31.d4+/- (worse 31.Bc6 Qc4-/+)) 29.Rd4 (29.Rh4 Ne5 30.Nc3 Nf3 31.Kh1 Qc6-+) 29...Ne5 Threatening mate... how? 30.Be5 (30.Rd5?? Nf3 31.Kh1 Rg1) 30...Qe5 31.f4 Qh5 32.Rd8 Kh7 33.Nf2 (33.Rc1 Qe2 34.Nf2 Qf2 35.Kh1 Qf3 36.Kh2 Qg3 37.Kh1 Qh3) 33...Qf3 34.Rf1 Qg3 35.Kh1 Qf3 36.Kh2 ½-½. Muri,Heinrich - Nitti,Francesco, Coppa Latina5-04, 1995.

13.h3 Bf5 14.Bb5 (14.Qc3 Qf8=+) 14...Bd7 15.Rc1 Rad8 16.a4 a6 17.a5 ab5 18.ab6 cb6 19.Nc3 (19.Qb5 Nd4 20.Qd3 Nf3 21.gf3 Qg5 22.Kf1 Bb5–+ (22...Bh3?! 23.Ke2–+)) 19...Na5 20.Qc2 Bc6 21.Nd4 Qg5 22.f3 Nc4 23.Rd1 (23.Nce2!?=+) 23...Be5 24.Nc6 bc6 25.Ne4 Qf5 (25...Qg6 26.Be5 Ne5 27.Kh2–+) 26.Be5–/+ Qe5 27.Ra2 Re7 28.Qb3 Red7 29.d4–/+ Qe7 30.Rd3 Qe6 31.Ra1 Re7 32.Ng5 Qd5 33.Ne4 Rde8 34.Nc3 Qg5 35.e4 Rd8 36.Kh1 Re6 37.d5 Rg6 38.Ra2 Rgd6 39.Qb1 h6 40.Ra7 Ne5 41.Rd1 Qe3 42.Ra3 Nc4 43.Rb3 Na5 44.Ra3 Qc5 45.Qa1 b4 46.Na4 Qb5 47.Ra2 b3 48.Nc3–/+ Qc5 49.Ra4 Nc4 50.Qb1 b2 51.Ra7 Qf2 52.Rg1 b5 53.Rb7 cd5 54.ed5–/+ Rb6 55.Re7 Qd4 56.Rge1 Rg6 57.Qc2 b4 58.Nd1 Rd5 59.Re8 Kh7 60.R8e2 b3 61.Qb1 Nd2 62.Qb2 Qb2 63.Nb2 Rc6 64.Re7 Rc2 65.Nd1 Nc4 (66.Rg1 b2 67.Nb2 Rb2 68.Rf7 Ne3–+) 0–1. Lonnie – crafty, ICC, 1999.

13.Bd1 Na5 14.Qc3 +–.

13.Bd1= Ng2 14.Kg2 Qe4 15.Rg1 Re6?? 16.Kf1+/– Rg6? 17.Nc3+– Bh3 18.Ke2 Nd4?? 19.Nd4 Rg1 20.Nf3 Bf1–+ 21.Ke1 Qf3! 22.d3 Bg2 23.Kd2 Qf2 24.Be2 Ra1 25.Ba1 Bf3 26.Qb2 Re8 (26...Re8 27.Kc1 Qe3 28.Qd2 Ba3 29.Kc2 Be2 30.Qe3 Re3–+) 0–1. Piszcz,Kazimierz – Sternik,Ryszard, corr 2. AMM, Poland, 1993.

13.Bd1 Ng6 14.d4 Na5 15.Qc3 b6 16.Nbd2 Rac8 17.Ba4 Bd7 18.Bc2 f6 19.Bd3 c5= 20.dc5 Rc5=+ 21.Qd4 Nc6 22.Bc4 Kh8 23.Qd3 Nce5 24.Qd4 Nc6 25.Qd3 Nge5 26.Qe2 Bg4–/+ 27.Rfc1 Nf3 28.Nf3 Ne5 29.Bd4 Rc4–/+ 30.Rc4 Nc4 31.Qc4 Rc8 32.Qa6 Qc7 33.h3 Be6 34.Qd3 Qc2 35.Qb5 Qc4 36.Qb2 Qc7 37.a4 Be7 38.Qb5 Bc4 39.Qf5 Bf7 40.a5 Bg6 41.Qe6 Rb8 42.ab6 ab6 43.Nh4 Bd3 44.Bb6 Qd6 45.Qd6 Bd6 46.Bd4 Kg8 47.Nf3 Rb1 48.Rb1 Bb1 49.Nd2 Bd3 50.f3 Bb4 51.Nf1 Kf7 52.Kf2 Bd6 53.h4 Ke6 54.g4 g6 55.f4 f5 56.g5 Bf1 57.Kf1+/– Kd5 58.Kf2 Ke4 59.Bb6 Ba3 60.Ba7 Bb2 ½–½. Rocha,Sergio (2285) – Van Beers,Eddy, Wch U20 Mamaia, 1991.

13.Bd1 Ng6 14.d4 Na5 15.Qc3 Bf3 16.Bf3 Nh4 17.Nd2 Nf3 18.Nf3 b6 19.Rae1 Qd7 20.e4 Rad8 21.Re2 Qa4 22.e5 Bf8 23.Qd3 Qc4 24.Qe4 Qd5 25.a4 Qe4 26.Re4 c5 27.dc5 Bc5 28.Bc3 Nc6 29.Rc4 Rd5 30.Rb1 a6 31.Kf1 h6 32.Rg4 Re7 33.h3 Re6 34.Rc4 Re8 35.Rg4 Re7 36.Rc4 Kf8 37.g3 Re8 38.Kg2 Re6 39.h4 Kg8 40.Rb2 Re7 41.Rg4 Kf8 42.Rb1 Re8 43.Rb2 Red8 44.Rc2 a5 45.Rc4 Rd1 46.Rf4 R8d5 47.Rg4 R5d3 48.Bb2 Rb3 49.e6 f6 50.Nd2 Rb4 51.Ne4 Nd4 52.Bd4 Rdd4 53.f3 Rd5 54.Nc5 Rc5 55.e7 Ke8 56.Rc5 bc5 57.Rg7 Ra4 58.Rh7 Ra2 59.Kh3 a4 60.Rh6 a3 61.Rf6 Ra1 62.Kg4 c4? (62...Ke7 63.Ra6 c4 64.Kf5=) 63.f4 (63.Re6 Rb1 64.Re2=) 63...c3 64.Rc6 Re1 65.Rc3 a2 66.Ra3 a1Q 67.Ra1 Ra1 68.Kg5 Ke7 69.h5 Kf7 70.g4 Kg7 71.Kh4 Kf6 72.Kh3 Rf1 73.Kg3 Kf7 74.g5 Ke6 75.Kg4 (75.h6 Kf5 76.h7 Rh1-+) 75...Rg1 76.Kf3 Kf5 77.h6 Rg4 0-1. Korchut,Adam (1990) - Sacerdotali,Sergio (2160), RA-2010-0-00090, 2010.

13.ef4 Qe2 14.Nc3 Qd3 15.Qb7 Bf3! Sternik.

13.dc3 Rad8 =+.

13.Bc3 Ba3!? 14.Qa4 Bb4=+.

13.Bc3 Rad8 14.Qa4 (14.Qb3 Rb8=) 14...Bd7 15.Qb3 Qe4 (15...Rb8 16.d4=) 16.Ng5 (16.Qb2 Qg6+=) 16...Qg6= 17.f4 h6 18.Bd3 Bf5 (18...Qh5 19.Ne4 Bc8 20.Ng3+=) 19.Bf5 (19.Nf7!? Qf7 20.Qf7 Kf7 21.Bf5+/-) 19...Qf5= 20.Nh3 (20.Qb7 hg5 21.Qc6 gf4+=) 20...b5 (20...Rb8 21.Qb2 f6 22.Qb3 Qe6 23.Qe6 Re6 24.Nf2=) 21.Qb2 (21.Rfc1 Bf8=) 21...Bf8 22.Nf2 a5 (22...a6 23.Rfe1=+) 23.Qc1 b4 (23...Qe6 24.Rb1 Ba3 25.Qa3=) 24.Bb4 (24.ab4 ab4 (worse 24...Bb4 25.Bb4 Nb4 26.Qc7+=) 25.Bb2 Na5=+) 24...ab4=+ 25.Qc6 ba3 26.Rfd1 Qa5 Attacking the backward pawn on d2 27.Ng4 Re6 28.Qc2 Red6 The pressure on the backward pawn d2 grows (28...Qc5!? 29.Qa2 Qd5=+) 29.d3= Rb8 (29...g5 30.Ne5=) 30.Ne5+= Qa7 (30...Ra8 31.Nc4 Rc6 32.Qf2=) 31.d4 c5 (31...Ra8 32.Rd3 Re6 33.Qa2+=) 32.d5 (32.dc5 Rb2 33.Qc1 Rd1 34.Qd1 Qc5-+ (34...Bc5?! 35.Nc4 Rb8 36.Qd3-/+)) 32...c4 (32...Ra6 33.Ra2 Ra8 34.Nc4+/-) 33.Nc4+/- Rc8 34.Qb3 (34.Qd3 Ra6+/-) 34...Rc4 (34...Ra6!?+/-) 35.Qc4 Qe3 36.Kh1 Rf6 37.Qd4 (37.Rd4 Rb6 38.Re4 Qb3+/-) 37...Qe2 (37...Qd4 38.Rd4 g5 39.g3+/-) 38.Rd2 Qb5 39.g3 h5 (39...Ra6 40.Kg2+/-) 40.Qd3 Qa4 (40...Qd3 41.Rd3 Ra6 42.Kg2+/-) 41.Rc2 (41.Re1 h4+/-) 41...g6 (41...h4 42.Rac1+/-) 42.Rc8 Kg7 43.Kg2 h4 44.Qc4 (44.Qc4 Qc4 45.Rc4+/-; 44.Rac1!? hg3 45.hg3 Qb4+-) 1-0. Merten,Rainer - Brinkmann,Wilhelm, corr SOK-87-04, 1987.

13.Bc3 Ne5 14.Ne5= Be2 15.Qe2 Be5 16.Be5 Qe5 17.Rab1 b6 18.Rfc1 Qd6 19.a4 c5 20.a5 Red8 21.ab6 ab6 22.Rc2 Qd3 23.Qd3 Rd3 24.Kf1 Rd6 25.Ke2 Kf8 26.Rcb2 Rad8 27.Ra2 Ke7 28.Rbb2 R8d7 29.Rb5 h6 30.Rab2 Rg6 31.g3 Rdd6 32.e4 Rge6=+ 33.Ke3 f5 34.f3 fe4 35.fe4 Rd4 36.d3= Rdd6 37.Ra2 Rd4 38.Ra7 Rd7 39.Ra6 Rdd6 40.Rb3 Kf6 41.Ra7 Rc6 42.Rb1 Re7 43.Ra8 Ke6 44.Rb8+/– Rec7 45.R1b6 Rb6 46.Rb6 Ke7 47.Kd2 c4 48.d4 c3 49.Kc2 Rc4 50.Rb7 Ke8 51.d5 Re4 52.Kc3 Re2 53.Rb2 Re4 54.Kd3+– Ra4 55.Rb7 Kf8 56.Ke3 Rc4 57.h4 Rg4 58.Kf3 h5 59.Rb5 Rd4 60.Ke3 Rg4 61.Kf2 Ke8 62.Rb6 Ke7 63.Re6 Kd7 64.Kf3 g5 65.Rh6?? gh4= 66.Rh5 Rg3 67.Kf4 Kd6 ½–½. Wohlers Armas,Friederike (2145) – Bakalarz,Grazyna, Dortmund (Women), 1989.

13.Bc3 Ne5 14.Ne5= Be2 15.Qe2 Be5 16.Be5 Qe5 17.Qf3 b6 18.d4 Qe7 19.Rfc1 Rec8 20.Rc6 Qd7 21.Rac1 a5? (better is 21...Rab8+/–) 22.Rc7!+– Rab8 (22...Rc7 23.Qa8 Mate attack; 22...Qc7 23.Rc7 Combination) 23.Qf7! (23.Rd7?? Rc1 24.Qd1 Rd1) 23...Qf7 (23...Qf7 24.Rc8 Deflection (24.Rc8 Decoy; 24.Rc8 Overloading); 23...Kf7 24.Rd7 Zwischenzug) 24.Rc8 Qf8 25.Rf8 Kf8 26.Kf1 b5 27.Ke2 Rb7 28.Kd3 Ke7 29.e4 Kd6 30.f4 g6 31.g4 b4 32.ab4 ab4 33.f5 gf5 34.gf5 b3 (34...Ke7 35.e5 Kf7 36.Rb1+–) 35.e5 Ke7 36.Rb1 h5 37.Kc3 1–0. mr5reasons1 (1750) – loopdeloop (1725), gameknot.com, 2012.

13.Bc3 Qe6 14.d4= Qh6 15.g3 Ne7 16.e4 c6 17.Re1 Bc7 18.Nh4 Be2 19.Re2 Rad8 20.Qc2 Qh5 21.Rae1 Nc8 22.Kg2 Nd6 23.e5 (23.Nf3 Nb5 24.Bb2 Ba5=) 23...Nc4 (23...Nb5 24.Qb2–/+) 24.Nf5? (24.Qa4 b5 25.Qa7 Bb6=) 24...g6 (24...Na3 25.Qe4–/+) 25.Ne3 (25.Qa2!?+=) 25...Ne3 (better is 25...Na3!? 26.Qb3 Nb5–/+) 26.Re3 1–0. Melich,Jindrich (2075) – Steenbekkers,Franck (2200), X Calvia ESP, 2013.

14.Qa4 Bb4 15.Rfb1 Bc3 16.dc3 Bc8 17.Rb5 b6 18.Rd5 Bb7 19.Ba6 Na5 20.Bb7= Nb7 21.Re5 Qd8 22.Re8 Qe8 23.Qe8 Re8 24.Ra7 Nd6 25.Rc7 Rc8 26.Rc8 Nc8 27.Kf1 Kf8 28.Ke2 ½–½. Schneider,Fred – Rohde_Jensen,Kristian, corr ICCF TT–4–90, 1991.

14.Qa4 Bb4 15.Bb4 Nb4 16.Rab1 (16.d4 c6=+) 16...a5 17.h3 (17.d4 c6-/+) 17...Bd7 18.Qb3 (18.Qa3 Bf5 19.Rb2 b6-/+) 18...b6 (18...Be6 19.Qc3-/+) 19.d4 Rac8 (19...c5 20.Rfd1-/+) 20.Rfc1 (20.Ne5 Be6 21.Qa4 c5-/+) 20...Be6 (20...c5 21.Ne5 Be6 22.Qa4-/+) 21.Bc4 Qd6 22.Ne5 (22.Qa4 Bc4 23.Rc4 c6-/+) 22...c5 23.Nf7?? (better 23.Be6 Qe6 24.Qa4-/+) 23…Kf7-+ (23...Kf7 24.dc5 Rc5 25.Be6 Qe6 26.Rc5 bc5-+) 0-1. Dziel,Jaromir (2325) - Lemke,Hans Hermann, corr ICCF WT-M/GT/333, 1993.

14.h3 Bd7 15.Qc2=+ g6 (16.Rfb1 Reb8=+) =+. Simtjenko,W – Kassing,Guenter, corr ICCF–Cup8/9 V014, 1990.

14.h3 Be6 15.Qc2 Bb4 16.Rfc1 –/+.

15.Ra4 a5 16.d4 b5 17.Raa1 Reb8–/+.

15.Ra4 a5 16.h3 b5 17.Raa1 Bf3 18.Bf3 Ra6–/+.

15.Ra4 a5 16.h3 Be6 17.Qb2=+ Bc3 18.dc3 b6 19.Bb5 Qd6 20.Nd4 Bd7 21.Rd1 Ne5 22.Bd7 Nd7 23.Qc2 Nc5 24.Nf5 Qc6 (24...Qf6 25.Rg4 Ne6 26.Rd5-/+) 25.Rg4 g6 26.Nh6 (26.Nd4 Qd5-/+) 26...Kg7 (26...Kf8 27.Qd2-/+) 27.Nf5 Kh8 Black fights for the Initiative 28.Ng3 (28.Nd4 Qd7-/+) 28...f5 (28...a4 29.Rgd4-/+) 29.Rgd4 Qe6 (29...a4 30.Qa2-/+) 30.Rd5 (30.c4 a4-/+) 30...a4 31.Ne2 (31.c4 Qf6 32.R5d4 Ne6-/+) 31...a3 32.c4 Qf6 33.Nc3 f4 34.ef4 Qf4 35.Na2 (35.Qa2 c6 36.R5d2 h6-/+) 35...Kg8 36.Qc3?? (better 36.Nb4-+) 36…Re2 (36...Re2 37.Rf1 Ra2-+) 0-1. Woronowicz,Zbigniew - Woschkat,Karl_Heinz, corr 3GMM-04, 1997.

15.Ra4 a5 16.h3 Be6 17.Bc4?? b5!-+ 18.Be6 (18.Bb5 Bb3 Pinning (18...Bb3 Deflection)) 18...ba4 (18...fe6?! 19.Raa1-/+; 18...Qe6?! 19.Qe6 fe6 20.Raa1-+) 19.Bf7 Qf7 20.Qa4 Bc3 21.Qc6 Bf6 (21...Bb4 22.d4-+) 22.g4 (22.d4 a4-+) 22...h6 23.h4 Qe6 24.Qa4 (24.Qe6 Re6 25.Kg2 Bb2-+) 24...Qe4 25.Qa2 (25.Qe4 Re4 26.g5 hg5 27.hg5 Bg5-+) 25...Kh8 26.Nh2 Be5 (26...Bh4!? 27.Rc1-+) 27.f4 Bd6 28.g5 hg5 (28...a4 29.Nf3-+) 29.hg5 Bc5 (29...c5 30.Qf7-+) 30.Rf3 Qf5 31.Kg2 Qe6 (31...Re6 32.Rh3 Kg8 33.Nf1-+) 32.Rh3 (32.Qe6 Re6 33.d4 Bb4-+) 32...Kg8 33.Qc2 (33.Qe6 Re6 34.d4 Be7-+) 33...Qe4 34.Qe4 Re4 35.Ng4 a4 36.g6 (36.d4 a3 37.Kf3 Rd4 38.ed4 a2-+) 36...Ra6 (36...a3 37.Ne5 Re5 38.fe5-+) 37.Ne5 (37.d4 a3 (worse 37...Rg6 38.Kf3 Bd6 39.Ke4 Rg4 40.Rh5-+) 38.Kf3 Rd4 39.ed4 a2-+) 37...Re5! 38.fe5 Rg6 39.Kf3 a3 40.Rh1 a2 41.Ra1 Ra6 42.Ke4 Kf7 (42...Ra3 43.Kf3-+) 43.d4 Bb4 (43...Bb6 44.d5-+) 44.Kd3 Ke6 45.Kc4 Bd2 (better 45...Be7-+) 46.e4 (46.Kd3 Be1! 47.Re1 a1Q 48.Ra1 Ra1-+) 46...c6 (better 46...Ra3 47.Kc5-+) 47.Kb3 Be3 48.Kc4 (48.d5 cd5 49.ed5 Kd5 50.Ra2 Ra2 51.Ka2 g5-+) 48...g5 49.Kd3 (49.d5 Ke5 50.d6 Kd6-+) 49...Bf4 (49...Ra3 50.Kc4 Ra4 51.Kd3 Bd4 52.Ra2 Ra2 53.Kd4-+) 50.Kc2 (50.Kc4 g4 51.d5 Ke5 52.dc6 Rc6 53.Kb3 Ra6-+) 50...g4 51.Kb2 (51.Kd3 c5! 52.d5 Ke5-+) 51...Be3 (51...g3 52.Kc3 g2 53.Kd3-+) 52.Kc3 (52.d5 cd5 53.ed5 Kd5 54.Kc2-+) 52...g3 53.Kd3 Bf4 (better 53...Ra3 54.Kc4 g2 55.d5 Ke5 56.Kb4-+) 54.Kc2 (54.Ke2-+) 54...g2 55.Kb2 Black now must not overlook the idea Bc1+ 55...Be3 56.Rd1 Bd4 57.Rd4 (57.Kc1 a1Q 58.Kc2 Qc3 59.Kb1 Ra1) 57...a1Q 58.Kc2 Ra2 59.Kb3 (59.Kd3 Qd1 60.Kc3 Qc2 61.Kb4 Ra4) 59...Qb2 60.Kc4 Ra4 (60...Qc2 61.Kb4 Ra4) 61.Kd3 Qd4 (61...Ra3 62.Kc4 Qc3) 62.Ke2 (62.Kc2 g1Q 63.Kb3 Qgd1) 62...Qe4 (62...g1Q 63.Kf3 Qe4) 63.Kf2 (63.Kd2 Ra2 64.Kc3 Qc2 65.Kd4 g1Q) 63...Qf4 64.Ke2 Ra2 (64...Rd4 65.Ke1 Qe3) 65.Kd3 Qf3 (65...g1Q 66.Kc3 Qge3) 66.Kc4 (66.Kd4 g1Q 67.Kc4 Ra4) 66...Ra4 67.Kc5 Qd5 (67...g1Q) 68.Kb6 Rb4 69.Kc7 g1Q (69...Qd7) 70.Kc8 c5 (70...Qd7) 71.Kc7 c4 (71...Qd7) 72.Kc8 c3 (72...Qgc5) 73.Kc7 c2 (73...Qgc5) 74.Kc8 c1R (74...c1Q) 0-1. carlos78 (2160) - Larsan (2005), Rated Blitz game, lichess.org, 2014.

15.Ra4 Be6 16.Qb2 Bc3 17.dc3 b6–/+.

15.Rfb1 a5–/+.

13.Qb3 Nb6 14.d4 =+.

12.h3 Bf5 13.Nc3 Nc3 14.Bc3 Ba3 15.Bb5 Bd6 16.Nd4 Nd4 17.Be8 Qe8 (worse 17...Re8 18.Bd4 c5 19.Bb2=) 18.Bd4 c5 19.Bc3 b5 20.d4 c4 21.Ra6 Bf8 22.Qd2 Rb8 Black plans b4 (better 22...Qe7!?=) 23.Bb4+= Bb4 24.Qb4 Qf8 25.Qb2 b4 26.Rfa1 Qd8 27.R6a5 Be6 28.Rc5 c3 29.Qc2 g6 30.d5 Qd6 (worse 30...Bd5 31.Rd1 (31.Ra7? b3 32.Qc3 b2-+) 31...b3 32.Qc3+-) 31.Rc3 Bf5 32.e4 bc3 33.ef5 Qc5 34.Ra6 (34.Qe4!?=) 34...Rb2=+ (34...Qd5?! A) worse 35.Ra7 Qc5 (35...Qf5?! 36.Qc3 Qf4 37.Qa1=) 36.Ra2 Qf5 37.Qf5 gf5-/+; B) 35.Qc3 Qf5 36.Ra7=) 35.Rc6 Rc2 36.Rc5 Rc1 37.Kh2 Kf8 38.Rc7 c2 39.Kg3 gf5 40.Kf3 (40.Ra7?? Re1 41.Rc7 c1Q 42.Rc1 Rc1-+) 40...Kg7 41.Ke2 (41.Ra7?? Re1 42.Rc7 c1Q 43.Rc1 Rc1-+) 41...Kf6 42.Kd3 a5 43.d6 (43.Rc2 Rd1 44.Kc4 Ke5+=) 43...h5 (43...Ke6 44.d7 Rd1 45.Kc2 Rd7 46.Rc6 Rd6 47.Rc8=+) 44.Rc5 a4 45.Rc4 a3 (better 45...Ke6!?=+) 46.Rc2= Rd1 47.Kc4 Rd6 48.Kb3 Rd3 49.Kc4 Rd8 50.Kb3 Rg8 51.g3 Rd8 52.Ka3 Rd3 53.Kb4 Rf3 54.Kc4 f4 55.Kd4? (better 55.g4-/+) 55...fg3-+ 56.fg3 Rg3 57.Ke4 Rh3 58.Kf4 Kg6 59.Rg2 Kh6 60.Ra2 f6 61.Rb2 Rh1 62.Ra2 Rf1 63.Kg3 Kg5 64.Rb2 Ra1 65.Rc2 f5 66.Rc8 Ra3 67.Kg2 h4 68.Rb8 Rg3 69.Kf2 Kg4 70.Rg8 Kh3 71.Rf8 Rg5 72.Kf3 Rg1 73.Kf2 Rg5 74.Kf3 Kh2 75.Kf2 h3 76.Rh8 Rg2 77.Kf3 Rg1 78.Kf2 Rg5 ½-½. Yarmolyuk,Yury (2155) - Krupa,Bartlomiej (2160), BI-2010-F-00005, 2011.

13.Nc3 Nc3 14.Bc3 Ba3-/+ 15.Bb5 Be4 16.Ne5 (16.d3 Red8=+) 16...Bd6 17.f4 (17.Nc6 Qg5 (17...Bc6?! 18.Bc6 bc6 19.Qg4=) 18.f3 bc6=+ (worse 18...Qb5 19.Na7 Ra7 20.Ra7+=; 18...Bc6?! 19.Bc6 bc6 20.f4=)) 17...Be5-/+ 18.fe5 Qe6 19.Ra4 (19.Qh5 a6 20.Bc6 Bc6-/+ (20...Qc6?? 21.Qf7 Kh8 22.e6+-)) 19...Qg6 (19...a6 20.Re4 ab5-/+) 20.Re4 (better 20.Qe2!?-/+) 20...Qe4-+ 21.Rf4 Qg6 22.e6 f6 (22...fe6 23.Rg4) 23.Ba4 (23.Qf1 Re6 24.Bc4 Qf7-/+) 23...Kh8 (23...a6 24.Bc2 Qh6 25.Rf5=) 24.Bc2 (better 24.Qb3 Rab8 25.Qc4-+) 24...Qh6?? (better 24...Qg5-+) 25.Rf5= Rad8 (25...Re6 26.Rh5 f5 27.Rh6 Rh6 28.Qa1+-) 26.Rh5 Qe3 27.de3 Threatening mate: Rxh7. 27...Rd1 28.Bd1 Re6 29.Rc5 (29.Kf2 Ne5+=) 29...Re3= 30.Bg4 (30.Ba4 Re6+=) 30...Re7+= 31.Bc8 Nd8 32.Rd5 Do you see the mate threat? 32...Re8 33.Rd7 c6 (33...c5 34.Bb7 Nb7 35.Rb7+/-) 34.Bb7 Nb7 35.Rb7 Ra8 36.Ba5 (36.Rc7 Kg8+/-) 36...Kg8 (36...h5 37.Rc7 Kh7 38.Rc6+/-) 37.Rc7 Rb8 38.Rc6 Rb7 39.Ra6 f5 (39...h5 40.Bd2+-) 40.Bd2 Kf7 41.Kf2 h5 42.Bc3 Rd7 (42...Rc7 43.Bd4+-) 43.Ke3 Rc7 (43...Ke8 44.Kf4+-) 44.Ba1 (44.Be5 Rc2 45.Kf3 g5 46.Rf6 Ke7 47.Rf5 g4 48.Kg3 gh3 49.gh3 a5+-) 44...Ke8 45.Kf4 Rc2 (45...Rf7 46.Bd4+-) 46.Bg7 (46.Kf5 Rg2 47.Ra7 Kf8+-) 46...Rg2 47.Ra7 Rf2 48.Ke5 Kd8 49.Ke6 (49.Ke6 Kc8 50.Be5+-) 1-0. Degterev,Pavel - Kis Kos,Laszlo, FICGS, 2007.

13.d4?? Ne3!–+ (14.fe3 Qe3 15.Kh1 Qe2–+) 0–1. Neri,Enzo – Korchut,Adam, corr ICCF TT 6/02/1, 2002.

13.Re1 Rad8 14.Nc3 Nc3 15.Bc3 a6 16.Qb3 b5 17.Qb2 f6 18.d4 Qf7 19.Nd2 Qg6 20.Bf3 Ne7 21.a4 ba4 (21...Rb8!?+=) 22.Ra4= Bh3 23.Bb4 Bc8 24.Rc1 Kh8 25.Qa3 Nf5 26.Bd6 cd6 27.d5 Bb7 28.Rb4 Qf7 29.Qd3 g6 30.Nc4 Nh4 31.Be2 Qd5 (worse is 31...Bd5 32.Nb6 Bg2 33.Rh4+/–) 32.Qd5 Bd5 33.Nb6 Be4 34.f3 Bf3+= 35.gf3 Re3 36.Kf2 Rde8 37.Rc2 Nf5 38.Nd5 R3e5 39.Rd2 a5= 40.Rb7 Rf8 41.Ra7 Ree8 42.Ra5+/– Rf7 43.Rda2 Kg7 44.Bd3 Nd4 45.Ra7 Ref8 46.Nf4 f5 47.R7a4 Nb3 48.Ne6 Kf6 49.Nf8 Nc5 50.Rd4 (50.Rd4 Rf8 51.Bc4+– (51.Rd6?! Ke5 52.Raa6 Na6 53.Ra6 g5+/–)) 1–0. Buczinski,Henryk (2200) – Overgaard,Jens (1950), VWC4pg26, 2011.

13.Re1 Rad8 14.Nc3 Nc3 15.Bc3 Qe6 16.d4 Qh6 (16...Be7!?=) 17.Bd3 Bc8 (17...Bd3 18.Qd3 Qg6 19.Qg6 hg6 20.e4+=) 18.Qc2 (18.e4 Bf4+/–) 18...Bh3 (18...Qh5 19.Rab1+/–) 19.gh3 Qh3 20.Qd1 Nd4 21.Bd4 (21.Nd4?? Bh2 22.Kh1 Bg3 23.Kg1 Qh2 24.Kf1 Qf2#; 21.ed4?! Qg4 22.Kh1 Qh3 23.Kg1 Qg4 24.Kh1 Qh3 25.Kg1=) 21...Qg4 (21...c5!? 22.Bf1 Qg4 23.Bg2 cd4 24.Nd4 Qh4+/–) 22.Kf1+– c5 23.Bb5 Re6 24.Ng1 (24.Be5 a6 25.Bd3 Be7+–) 24...Qh4 (better is 24...Qd1 25.Red1 cd4 26.Rd4 a6+–) 25.Bc3+– a6 26.Bd3 Bh2 27.Nf3 Qh3 28.Ke2 Red6 29.Rg1 Bg1 30.Qg1 g6 31.Bc4 Qf5 32.Qb1 Qb1 33.Rb1 b5 34.Bb3 c4 35.Bc2 h5 36.a4 ba4 37.Ba4 Rd3 38.Rc1 Rc8 39.Ne5 Rd6 40.Rb1 g5 41.Rb7 Rf6 42.Ng4! (42.Ng4 Rd6 43.Nf6 Rf6 44.Bf6+–) 1–0. Benassi,Aspasio (2140) – De Melo,Gerson Luis (2080), RA–2012–0-00226, 2012.

12.a3= Nb6 13.Qc2 Bd6 14.Nc3 Ne5 15.Ne5 Qe5 16.f4 Qh5 17.Bg4 Qg4 18.Ne4 Nd5 19.Rf3 (19.Rf3 Qe6 20.d3+=) 1-0. pacalmisu (2385) - godes (2345), Rated Blitz game, lichess.org, 2016.

12.a3 Bd6?? 13.Qg4+- (13.Qg4 Ne5 14.Qa4+-) 1-0. norba94 (2385) - godes (2345), Rated Blitz game, lichess.org, 2016.

12.Qd1 Rad8-/+.

12.Bd1 Nd3 13.Bc3 Bf5 14.Bb4 Ncb4 15.Nc3 Nb2 16.Qb3 Nd1 17.Nd1 Bd3 18.Re1 Be4 19.Nd4 c5 20.a3? (better is 20.Nc3 Nd3 21.Re2 Bg2 22.Kg2 cd4 23.Qb5–+) 20...Nd3 (20...cd4?! 21.ab4 Qg5 22.g3–/+) 21.Nc2 Qg5 (22.f3 Bf3–+ (22...Ne1?! 23.Ne1 Bd5 24.Qc2–+); < 21...Ne1 22.Ne1 Rad8 23.d3–+) 0–1. hal1958 – SVFinito, HCL–A1141 playchess.de, 2003.

12.a3 Ba5 (12...Bd6 13.d4=) 13.Qb7 Rd6 14.Qb3 (14.Nd4 Nd4 15.Bg4 Nc6+/-) 14...Bb6 (14...Nf4 15.ef4 Qe2 16.Ne5=) 15.d4 (15.Nc3 Be6 16.Qc2 Nc3 17.Qc3 f5+/-) 15...Na5 16.Qd1 Ne3! 17.fe3 Qe3 18.Rf2 (18.Kh1 Qe2 19.Nbd2 Bf3 20.Rf3 Qd1 21.Rd1 Bd4 22.Bc1-+) 18...Bf3 19.gf3 Rg6 (19...Bd4?! 20.Bd4 Rd4 21.Qf1=) 20.Kf1 Qg5 21.Ke1 Nc4 22.Qa4 (22.Qc2 Ba5 23.Bc3 Qg1 24.Rf1 Qf1 25.Kf1 Ne3 26.Ke1 Nc2 27.Kf2 Bc3 28.Nc3 Na1 29.h3-+) 22…Qg1 (22...Qg1 23.Rf1 Ba5 24.Qb4 Bb4 25.Kd1 Re2 26.Nd2 Rd2 27.Ke1 Re6; 22...Re2 23.Kd1 Nb2 24.Ke2 Re6 25.Kf1 Qc1 26.Qd1 Qd1 27.Kg2 Rg6 28.Kh3 Qg1 29.Rg2 Qg2 30.Kh4 Qh2) 0-1. Junge,Wolfgang - Murach,K, corr DDR-ch M641, 1980.

12.a3 Ba5 13.Qb7 Rd6 14.Qb3 Rb8 15.Qa4 Bd7 16.Qc2 Nf4 17.Bd1 (17.Bc4!? Be6 18.Be6 Ne6 19.Nc3 Bc3 20.Bc3+/-) 17...Nd3= 18.Bc3 Be6 19.Qa4 Bb6 20.Qh4 Qh4 21.Nh4 a6 22.Be2 Rdd8 23.a4 Na5 24.Na3 Nc5 25.d4 Na4 26.Ba5 Ba5 27.Nb1 Bd7 28.Rc1 (28.Ba6 c5+/-) 28...Bb4 (28...Rb6!?=) 29.Ba6+/- c5 30.Nf3 cd4 31.Nd4 g6 32.Bf1 Kg7 33.g3 h5 34.Nc6 Bc6 35.Rc6 Nc5 36.Be2 Ne4 37.Kg2 Bd6 38.Rc4 Rb2 39.Re4 Re2 40.Ra6 Bf8 41.Ra7 Rb2 42.Nc3 Bc5 43.Rc7 Bd6 44.Rcc4 Rdb8 45.Rc6 Bb4 46.Nd1 Re2 47.Kf3 Re1 48.Nb2 Rb1 49.Nd3 Rb3 50.Nf4 Rb7 51.h4 Be7 52.Rd4 Bf6 53.Rd5 Be7 54.Rc2 Ra3 55.Rcd2 Rba7 56.Rd7 Bb4 57.R2d4 Be7 58.Rd3 Ra2 59.Rd1 Kf8 60.Ra7 Ra7 61.Rd2 Kg7 62.Nd5 Bd6 63.Nc3 Bb4 64.Ra2 Ra2 65.Na2 Bd2 66.Ke2 Ba5 67.Nc1 Kf6 68.Nb3 Bc7 69.Nd4 Ba5 70.e4 Bc3 71.Ke3 Ke7 72.Kd3 Be1 73.Ke2 Bc3 74.Ke3 Be1 75.Nc2 Ba5 76.f3 Kd7 77.f4 Bb6 78.Nd4 Kd6 79.Kd3 Kc5 80.Nf3 Kd6 81.e5 Kd5 82.Ng5 Bf2 83.Ne4 (83.Nf7?! Bg3 84.Ke3 Ke6=) 83...Bg1 84.Nc3 Ke6 85.Ke2 Kf5 86.Kf3 Bc5 87.Nd5 Ke6 88.Nc3 Be7 (88...Kf5 89.Ne4 Bb4+/-) 89.Ke4+/- Bc5 90.Kd3 Kf5 (90...Bg1 91.Ne2 Bf2+/-) 91.Ne4+/- Be7 92.Kd4 Kg4 93.Ke3 Bd8 94.Kf2 ½-½. Buczinski,Henryk (2165) - De Waele,Willy (2010), SA-2011-0-00204, 2011.

12.Nc3 Nb6 13.a3= Bd6 14.d4 Be6 15.Qc2 Bc4? 16.Bc4+– Nc4 17.Nd5 Bh2 18.Nh2 Rd5 19.Qc4 Qd6 20.Rfe1 Rh5 21.Nf1 Qg6 22.Rad1 Rg5 23.Ng3 h5 24.Qf1 h4 25.Ne2 Rf5 26.Nf4 Qg4 27.f3 Qg5 28.Nh3 Qh6 29.e4 Rh5 30.Qc4 Qd6 31.e5 Qd7 32.f4 Qg4 33.Qb5 Re6 34.Qe2 Qf5 35.d5 Rg6 36.dc6 Qh3 37.Rd8 (37.Rd8 Kh7 38.Qh5 Rh6 39.gh3 Rh5 40.cb7+–) 1–0. Dzieniszewski,Andrzej – Bozek, Krosno Odrzanskie, 1983.

12.Bd1 Be6 13.Qc2 Ng6 14.d4 Nh4 (14...Bd6 15.Nc3=+) 15.a3 (15.e4 Nf3 16.Bf3 Bd7=) 15...Bf5 16.Qb3 Nf3 (16...Bd6 17.Nbd2= (17.Qb7 Be4 18.Qa6 Nf3 19.Bf3 Bf3 20.gf3 Bh2 21.Kg2 Qg5 22.Kh3 Re6 23.Qc6 Rc6 24.Kh2 Rh6)) 17.Bf3+= Bd6 18.Nd2 Bd7 19.e4 (19.Qb7? Rab8 20.Qa6 Rb6-+ (20...Rb2?! 21.Nc4 Nb8 22.Qa7-/+)) 19...Bf4 20.Rfd1 Kh8 (20...Rab8 21.Nc4=) 21.Nf1 (21.Qb7? Rab8 22.Qa6 Rb2-+) 21...f6 22.g3 (22.Qb7? Reb8 23.Qa6 Rb2-+) 22...Bh6 23.Rab1 (23.Qb7? Rab8 24.Qc7 Rec8 25.Qc8 Bc8-+) 23...b6 24.Bg2 Rad8 25.f4 Bg4 26.Rd2 Qd7 27.d5 Na5 28.Qc3 Bh3 29.Bf3 (29.Bh3 Qh3 30.Qc7 Rc8 31.Qa7 Nc4+/-) 29...Nb7+= 30.Qc2 Nc5 31.Bd4 Nb7 32.Rc1 Re7 33.Qb2 Nd6 34.Qc2 (34.Rdc2 Nb5+/-) 34...Bg4 35.Bh1 Rde8 36.Re1 White prepares e5 36...Qd8 37.Ne3 Bh3 38.e5 fe5 39.fe5 (39.Be5 Nf7 40.Bd4+=) 39...Re5?? (better 39...Be3 40.Re3 Nf5-/+) 40.Be5+/- Re5 41.Rde2 Qe7 42.Nd1 Re2 43.Qe2 Qe2 44.Re2 Bg4 45.Rf2 Kg8 46.Bf3 Bf5 47.Kg2 Bg5 48.h4 Bc1 49.a4 Ba3 50.Nc3 Bd7 51.Be2 a5 52.Nb5 Nb5 53.Bb5 Bb5 54.ab5 Bc5 55.Rf4 Bd6 56.Re4 Kf7 57.Kf3 Be7 58.Rc4 Bd6 59.g4 Ke7 60.Ke4 Kf7 61.Kf5 Ke7 62.h5 Kf7 63.g5 g6 ½-½. Massana,Jorge (2210) - Rivera,Edwardo (2040), PUR-ch Caguas, 2008.

12.Bd1 Ng2?? 13.Kg2+/- Qe4 14.Nc3?? (better 14.d3 Qf5 15.Rg1+/-) 14...Bc3-/+ 15.Bc3 Re6 (15...Re6 16.Rg1 Bf3 17.Bf3 Rg6 18.Kf1 Qf3 19.Rg6 hg6-/+) 0-1. Ivanchuk,V (2675) - Gelfand,B (2675), Levitov Ivanchuk-Gelfand, 2021.

12.Bd1 Ng6 13.Nc3 Na5 14.Nd5 Nb3 15.Ne7 Ne7 16.Bb3 (16.ab3!? a6 17.Nd4 Bd1 18.Rfd1=) 16...Bf3-/+ 17.gf3 Bd2 18.Rfd1 Bb4 (18...Rad8 19.Be5 Ba5 20.Rac1-/+) 19.Rd4 (19.Be5 c6=+) 19...Bd6-/+ 20.Rg4 g6 21.e4 Rad8 22.Bf6 Bc5 (22...Ba3 23.Rf4 Rd7 24.Bb2=+) 23.Rc1 (better 23.Rf4!?=) 23...Bb6-/+ 24.e5 Rd2 (better 24...Rd3!?-/+) 25.e6=+ fe6 26.Be6 Kf8 27.Bg5 Nf5 (27...Bf2? 28.Kf1 Nd5 29.Bh6 Ke7 30.Bd2 Ke6 31.Kf2+-) 28.Bd2 Re6 29.Re4 Rf6 30.Rce1 Rc6 31.Bb4 (31.Be3 Kf7=) 31...Kf7=+ 32.R1e2 Rc1 33.Kg2 Bd4 34.Rd2 (34.Re8 c5 35.Rc8 Nh4 36.Kh3 Nf3=+) 34...c5-/+ 35.Ba3 Rb1 36.Rc2 b6 37.Bc1 Bf6 38.Rf4? (38.h3 a6-/+) 38...Be5?? (better 38...Nd4 39.Rd4 Bd4-+) 39.Ra4 (39.Re4 Bg7=+) 39...a5 40.Re2 Bf6 41.Be3 Nh4 42.Kg3 (42.Kh3 Nf3 43.Kg3 Nd4 44.Bd4 Bd4-/+) 42...g5 43.Bg5 Bg5 44.Rh4 Bh4 45.Kh4 c4 46.Rc2 b5 47.a4 (47.f4!?-/+) 47…ba4-+ 0-1. Holzleithner,Johannes (2000) - Trippold,Denise (2135), ch-AUT, 2018.

12.ef4 Qe4 Double attack (12...Qe2 Pinning; 12...Qe2 Deflection; 12...Qe4 Decoy).

12.Qb3 Nb6 13.d3 Bb4 14.d4 Bd6 15.Nc3 Bf5 16.Rad1 Nb4 17.Rd2 c6 18.Ne5 Be6 19.Nc4 a5 20.a4 Qh4 21.g3 Qh6 22.Ba3 Qg6 23.Rfd1 Nc4 24.Bc4 Bc4 25.Qc4 Qg4 26.Bb2 b6 27.Re1 Re7 28.e4 Bf4 29.Rdd1 Re6 30.e5?? Bg5 31.Ne4 Rd8 32.Ng5 Qg5=+ 33.Ba3 White gets strong initiative 33...Nd5 34.Bd6 Rc8 35.Qa6 Ree8 36.Rc1 Qg4 37.Qd3 Nf4 38.Qe4= Nh3 39.Kg2 Qe4 40.Re4 Ng5 41.Rg4 Ne6 42.Rb1 h5 43.Rh4 c5 44.d5+– Nc7 45.Bc7 Rc7 46.Rh5 c4 47.Rb6 c3 48.Rb1 c2 49.Rc1+– Rc5 50.f4 Rec8 51.d6 Rd5 52.e6?? Rd2?? 53.Kh3 fe6 54.Re5 Rd6 55.Re2 Rdc6 56.Kg2 Kf7 57.Kf2 Kf6 58.Re5 Rh8 59.h4 Rd8 60.Ke2 Rc3 61.Ra5= Rg3 62.Rc5 Rd4 63.a5 Rf4 64.h5 Rg2 65.Kd3 Rf3–/+ 66.Kc4 Rf5 67.Rf5=+ ef5 68.a6 Rg3 69.Kb4 Rg4 70.Ka3?? Rg3 71.Kb4 Rg4 72.Kb5 Rg3 73.Rc2 Rb3 74.Ka4 Rb1 75.Rc3 Rb6 76.Ka5 Rb1 77.Rc6 Kg5 78.a7 Ra1 79.Kb6 f4?? 80.Kb7 f3 81.Rg6?? Kh5+/– 82.Rg1! Rg1 83.a8Q f2 84.Qh8 Kg4 85.Qg7 +–. Psion – Psion, 4 Min/Zug, 1989.

12.Nc3 Ncb4 13.Qb3 c6 14.a3 Be6 15.ab4 Ne3 16.Qa4 Nf1 17.Bf1 Bb4 18.Qc2 Bg4 19.Re1 Qc5 20.Re5 Re5–/+ 21.d4 Re2 22.Be2 Qe7 23.h3 Bh5 24.Nd1 a5=+ 25.Ne3 a4 26.Nf5 Qf8 27.Ne5 Be2 28.Qe2 a3 29.Ba1 Re8 30.Qf3 Re5?? 31.de5+– g6 32.Qg3 a2 33.Qg5 h6? 34.Nh6 Kh7 35.Ng4 Be7 36.Qd2 b5 37.Qa2 b4 38.e6 fe6 39.Qe6 c5 40.g3 Bd8 41.Qd7 Be7 42.Qc7 Kg8 43.Qc6 Kh7 44.h4 Qf5 45.Qa8 Qf8 1–0. Villar,Nelson Alvarez – Baumann,Heinz, TT–16 ETC, 2005.

12.Nc3 Nc3 13.Bc3 Ne5 14.Be5= Be5 15.Ne5 (15.d4 Bd6=) 15...Be2 16.Rfe1 Qe5 (16...Bd1 17.Rad1 Qe5 18.d4+=) 17.d4 Qd6 18.Qe2 c5 19.dc5 Qc5 20.Rec1 (20.Rac1 Qe7=) 20...Qe7 21.Rc2 Rac8 22.Rac1 Rc2 23.Qc2 g6 (23...Rd8 24.Rd1=) 24.Qa4 b6 25.g3 (25.Qg4 Rd8+=) 25...Rd8= 26.Qf4 (26.Qg4 Qe6 27.Qe6 fe6+=) 26...Qb7 (26...Qe6 27.a3=) 27.h4 (27.Qf6 Rd2=) 27...Rc8 (27...Qe7 28.Qg5 f6 29.Qg4=) 28.Rd1 (28.Rc8 Qc8 29.Qd6 h6+=) 28...h5 (28...Qe7 29.Qg5 f6 30.Qd5 Kf8 31.h5=) 29.Qf6 b5 (29...Qe4 30.a3=) 30.a3 (30.f3 Qc7 31.Qg5 Qc2 32.Rd8 Rd8 33.Qd8 Kh7=) 30...Rb8 (30...Qe4 31.Kh2 Qg4 32.Rd6=) 31.Rd4+= Qc7 32.Kh2 a5 33.Re4 (33.Qd6 Qd6 34.Rd6 b4-/+) 33...b4 34.Re7 Threatening mate: Qxf7 34...Qc4 35.ab4 ab4 36.e4 (36.Rd7 Qe6 37.Qe6 fe6-/+) 36...Rf8 (36...b3 37.Qb2=+) 37.Qb2 (37.e5 Rb8=) 37...Rd8 38.Rb7 The isolani on b4 becomes a target 38...Qe4 39.Rb4 Qd5 (39...Qe6 40.Rb7=) ½-½. Buczinski,Henryk - Hoszowski,Piotr, corr Poland, 1993.

12.Nc3 Qe6 13.Nb5 Rad8 14.Nd6 Rd6 (worse 14...Qd6 15.Ng5 Qh6 16.Nf7 (16.Bg4?! Qg5 17.Bf3 Ndb4=) 16...Kf7 17.Bg4+/-) 15.Ba3 Rdd8 16.Ng5 Qf5 ½-½. Skerlik,Stanislav - Harding,Timothy David, ICCF Jubilee Officials/IM-A, 2001.

12.Nc3 Bc3 13.Bc3 Qc5 (13...Nf4 14.ef4 Qe2 15.Rfe1=+) 14.Qb3 (14.h3 Bh5=) 14...Nc3 15.dc3 b6 16.Rfd1 h6 (16...a5 17.Bc4 Qe7 18.Bd5 Bf3 19.Bf3=) 17.a3 Kf8 18.Rac1 a5 19.Nd4 Ne5 (19...Be2 20.Ne2 Kg8 21.Rb1=) 20.Bg4 Ng4 21.Rd2 Rd6 22.Rcd1 Red8 23.a4 Ne5 24.f4 Nc4 25.Re2 Kg8 26.Rde1 c6 ½-½. Bonetti,Shane - Parisi,C, ETC, 2004.

12.Nc3 Nc3 13.Bc3= Qc5 14.Rfd1 Bc3 15.Qc3 Qc3 16.dc3 Rd1 17.Rd1 Rd8 18.Rd8 Nd8 19.Kf1 Kf8 20.Nd4 Be2 21.Ke2 a6 22.e4 c5 23.Nb3 b6 24.Ke3 Ke7 25.f4 Kd6 26.c4 f6 27.a4 Nc6 28.g3 Nb4 29.Kd2 Nc6 ½–½. Melich,Jindrich (2050) – Saljova,Silvie (2155), Klatovy op–A, 2000.

12.h3 Bh5 13.a3 Ba5 14.Nc3 Nc3 15.Bc3 Bg6 16.d3 Bc3 17.Qc3 Rd6 18.Rab1 b6 19.Rfc1 a6 20.a4 Qd7 21.Kh2 Bf5 22.Qc4 a5 23.e4 Bg6 24.Nh4= Re7 25.f4 Nb4=+ 26.f5 Rd4 27.Qb3 Qd6=+ 28.Kg1 Nd3 29.Rd1? Nf4–/+ 30.Bf3 Bh5 31.Bh5 Nh5 32.Nf3 Rd1 33.Rd1 Qc5 34.Kh2 Nf6 35.e5 Ne8 36.Rd5 Qb4 (36...Qc6 37.Nd4 Qa8 38.f6 gf6 39.Nf5+–) ½–½. Caissa – Deroy, playchess.de, 2002.

12.h3 Bh5 13.Nc3 Bc3 14.Bc3 Nc3 15.Qc3 Ne5 16.g4 (16.Ne5 Be2 17.Rfe1 Qe5 18.Re2 c5 19.Rc1 b6 20.d3 Qe6 21.Rd2 Rd5+=) 16...Nf3 (16...Bg6 17.Ne5 Qe5 18.Qe5 Re5 19.f4 Rd2 20.Rad1 Red5 21.f5 Bf5+/–) 17.Bf3 Bg6 18.Bb7 Rd3 19.Qa5 (19.Qc1 Red8 20.Rd1 Rb8 21.Bg2 c5+=) 19...Ra3 20.Qd5 Rd8 21.Qf3 (21.Qc6 Rd2+=) 21...c5 (21...Rd2–/+) 22.Rfd1 h6 23.Rac1 Rad3 24.a4 Rd2 25.Rd2 Rd2 26.Bd5 Rb2 27.a5 Rb4 28.a6 Kh7 ½–½. Buczinski,Henryk (2260) – Chukanov,Igor Anatolievich (2245), Alpert Memorial Cup, Preliminary group, 2010.

12.h3 Bh5 13.Nc3 Bc3 14.Bc3 Nc3 15.Qc3 Bg6 A) 16.d4 Be4 (16...Qf6 17.Bb5 Re6 18.Qb2 Ne7 19.Rac1 Rb6 20.Qe2 a6 21.Bc4 Nc6=; 16...Qd6 17.Rfc1 Be4 18.Nd2 Bd5 19.Bf3 Bf3 20.Nf3 Rb8 21.Ne5 Ne5=; 16...Rd6 17.Qb2 Be4 18.Rac1 Qf6 19.Nd2 Nd4 20.ed4 Bg2 21.Kg2 Re2+=) 17.Qb2 Qf6 18.Rac1 Bd5 19.Rc3 a6 20.Rfc1 Rd6 21.Bd3 Bf3+=; B) 16.Rac1 Rd7 (16...Be4 17.Rfd1 Bd5 18.Rb1 a6 19.a4 b6 20.d4 Qf6 21.Rdc1 Rd6=; 16...Bf5 17.Rfd1 Be4 18.a3 Bd5 19.d4 a6 20.a4 Qf6 21.a5 Qg6=) 17.d4 Be4 18.Qb2 Bd5 19.Rfd1 Qf6 20.Rd2 a6 21.Qb1 b5=; C) 16.Rfd1 a5 (16...Be4 17.d3 Bd5 18.Rab1 Rb8 19.Rb2 f5 20.Rdb1 b6 21.d4 Rbd8+=; 16...Qd6 17.Qb2 Be4 18.d3 Bd5 19.e4 Be6 20.Qb7 Rb8 21.Qa6 Rb6+=; 16...Nb4 17.d4 Nd5 18.Qb3 c6 19.Ne5 Bf5 20.Rac1 f6 21.Nf3 Be6=) 17.d4 Be4 18.Rac1 Qf6 19.Rd2 Bd5 20.Rb2 Re7 21.a3 b6=; D) 16.Rfc1 Rd6 (16...Be4 17.d3 Bd5 18.Rab1 Rb8 19.Rb2 Qd6 20.e4 Be6 21.d4 f5+=; 16...Rd7 17.d4 Be4 18.Nd2 Bd5 19.Bg4 Rdd8 20.Bf3 Bf3 21.Nf3 Rb8=; 16...Bf5 17.Qb3 Be4 18.d4 Qf6 19.Rc5 Qg6 20.Rac1 b6 21.R5c3 Na5=) 17.Qb3 Be4 18.d4 Bd5 19.Qc3 a6 20.Rab1 Qf6 21.Qc2 b5=.

12.h3 Bh5 13.Nc3 Bc3 14.Bc3 Nf4 15.Bd1 Nd3 'White has a cramped position' 16.Qb3 (16.Nd4 Bd1 17.Qd3 Nd4 18.Bd4 Bf3 19.Qf5 Be4 20.Qa5 b6 21.Qc3 Bd5-/+ -0.78; 16.Qb1 b6 17.Bc2 Bg6 18.Ne1 Ncb4 19.Ba4 Rf8 20.a3 Nd5 21.Bc2 Nc3=+ -0.50) 16...b6 'Consolidates a5' 17.Qb5 Bf3 18.Bf3 Nce5 19.Be2 (19.Be4 Qd6 20.f4 Ng6 21.Bg6 Qg6= -0.22) 19...c6 (19...Qd7 20.Qd7 Rd7 21.f4 Nc4=+ -0.31) 20.Qa4 (20.Qb1 Qd6 21.Bd4 c5=+ -0.31) 20...Nc5 'Black threatens to win material: Nc5xa4' 21.Qc2 Ned3 22.Bd4 Qe4 (22...Nb4 23.Qc4 Ne4 24.Rad1=) 23.Bf3 'White threatens to win material: Bf3xe4' 23...Qg6 24.Bc5 bc5 25.Qc3 Qd6 26.a3 'Prevents intrusion on b4' 26...Ne5 27.Be4 c4 'White has a new backward pawn: d2' 28.Ra2 Qe6 (28...g5 29.Rb1+=) 29.f4 'White threatens to win material: f4xe5' 29...Nd3 (29...Nd7 30.Bf3+=) 30.Bf3 '+/-' 30...Nc5 (30...Rd7 31.Rc2+/-) 31.f5 '!' 'Deflection: c4' 31...Qe5 (31...Qf5 32.Bg4 Discovered attack (32.Qc4 Deflection)) 32.Qc4 Ne4 33.Be4 Qe4 34.Qe4 Re4 35.Rc1 Rd6 36.Kf2 Re5 (36...Rf6 37.g4 g6 38.d3+/-) 37.g4 '+-' 37...h5 (37...g6 38.d4 Ra5 39.fg6 Rf6 40.Ke2 Rg6 41.Rac2+-) 38.d4 Ra5 39.Rac2 hg4 40.hg4 Ra6 41.Rc3 Kf8 42.Kf3 Ke7 43.Kf4 g6 44.Rh1 Ra5 (44...Kf8 45.g5 gf5 46.Rh6+-) 45.Rb1 gf5 46.gf5 Kf6 (46...Kf8 47.Rb4 Ra6 48.Rcb3+-) 47.e4 Rd4 (47...Kg7 48.Rb4 Kf8+-) 48.Rc6 Ke7 49.Rb7 Rd7 (49...Kd8 otherwise it's curtains at once 50.Rf7 Raa4+-) 50.f6 Kd8 (50...Ke8 is not the saving move 51.Rc8 Rd8 52.Re7 Kf8 53.Rd8) 51.Rb8 1-0. Buczinski,Henryk (2260) - Bernal Caamano,Jose Luis (1855), Alpert Memorial Cup, Preliminary group, 2009.

12.Bc3 Nc3 13.dc3 Rad8 14.Qc2 (14.Qb3 b6 15.Rfd1 Qf6 16.Qc4= -0.19) 14...a6 (14...Qf6 15.Rfd1 Bf5 16.Qb3= -0.19) 15.h3 (15.Rfb1 b5 16.a4= -0.09) 15...Be6 (15...Bh5 16.Qb3= -0.19) 16.Rfd1 (16.Bd3 h6=) 16...Bd5 17.Qf5 Be4 18.Qf4 h6 19.a4 Bc2 20.Rd8 Nd8 21.a5 Be4 22.Ra4 c5 23.Ne1 (23.Bc4 Bc6 24.Ra1 g5=) 23...Nc6 24.Bc4 Bg6 25.Bd3 Bd3 26.Nd3 Rd8 27.Nb2 (27.Qc4 Qf6=+) 27...Qe6 28.Re4 Qd5 29.Qh4 g5 30.Rg4 Qe6 (30...Kg7 31.Nc4-/+) 31.e4 Kf8 32.Qh5 Rd6 33.f4 Qe4 (33...Na5?! 34.fg5 Qe5 35.Qh4 hg5 36.Qg5 Qc3 37.Qg8 Ke7 38.Qg5 Kd7 39.Qf5 Kc6 40.Rg8 Qc1 41.Kh2-/+) 34.fg5 Qe3 35.Kh2 Qe5 (35...Na5?! 36.gh6 Rh6 37.Qf5=+; 35...Qc3 36.gh6 Qe5 37.Qe5 Ne5 38.Rg5+/-) 36.Rg3 (36.Rg3 Na5 37.Qf3 hg5 38.Nd3-+). Karpenko,Aleksandr D - Chunarev,Aleksey V, corr, 2003.

12.Bc3 Nc3 13.dc3= Qf6 14.Qc2 Bf5 15.Qb3= b6 16.Rfd1 Be4 17.Nd2 ½–½. Palmkoeck,William – Benassi,Aspasio, corr TKM/SF/01, 2001.

12.dc3 Ba3 13.Rb1 (13.Ba3 Qa3 14.Qb3 Qb3 15.ab3 Ne5=) 13...Bd6=+ 14.Nd4 Be2 15.Qe2 Nd4 16.cd4 Qe4 17.Ba1 b6 18.Rfe1 Re6 19.f3 Qh4 20.g3 Bg3 (better 20...Rg6!? 21.f4 Re8=) 21.hg3+/- Qg3 22.Qg2 Qh4 23.Qh2 Rg6 24.Kh1 Qf6 (24...Qg5!? 25.Rg1 Qe3 26.Rg6 fg6=) 25.Qf4+= (25.Qc7?? Qf3 26.Kh2 Qg2) 25...Rh6 26.Kg1 Qg6 27.Qg4 Qd6 28.Qe4 Qg3 29.Kf1 Rd8 30.Ke2 Rh2 31.Kd3 (better 31.Kd1!?=) 31...Qf2-/+ 32.Rb2 Qe1 33.Rh2 Qf1 (33...Qd1 34.Kc4 Qa1 35.Qh7 Kf8 36.Qe4 Qf1 37.Kb3 Qb5 38.Kc2 Qc4 39.Kd1=) 34.Kd2= Qa1 35.Qh7 Kf8 36.Qc2 Kg8 37.Qh7 (worse 37.Qc7 Qa2 38.Ke1 Qd5=+) 37…Kf8 ½-½. Sapierzynski,Tadeusz - Kwiek,Janusz, corr 1AMM Poland, 1991.

12.Bc3 Bc3 13.dc3 b6 14.Nd4 Be2 15.Qe2 Nd4 16.cd4 c5 17.Rfd1 Rad8 18.dc5 bc5 19.Qc4 Rd6 20.Rac1 Red8 21.Rd6 Rd6 (better 21...Qd6!? 22.h3 Rc8=) 22.Qc5+/- h6 ½-½. Lisakowski,Christof (2260) - Garscha,Freimut E (2520), RSS7E high-10, 2005.

12.Bc3 Bc3 13.dc3 b6 14.Nd4 Be2 15.Qe2 Ne5 16.Rad1 c5 17.Nf5 (17.Nf5 Qe6 18.e4=). pcmvr (2800) – cruyce (2430), net–chess.com, 2006.

13.Qc2 Rad8 14.Rfd1 Bd6 15.c4 b6 16.Rd2=.

13.c4 Rad8 14.Qb3 b6 15.Rad1 Bd6 16.Qa4=.

13.Nd4= Be2 14.Qe2 Bd4 15.cd4 (15.cd4 Qe4 16.Rab1= (16.Rfc1=)). Sterner,Roland - Nyberg,Joergen, corr SSKK 2-96, 1987.

13.Nd4= Be2 14.Qe2 Qe4 15.Rfd1 Nd4 16.cd4=.

13.Nd4 Be2 14.Qe2 Ne5 15.Rfd1 a6 16.Nf5 Qe6 17.Nd4 Qc4 (17...Qf6 18.c4=+) 18.Qc2 (18.Qc4 Nc4 19.Rab1 Rad8=+) 18...Rad8=+ 19.Qb3 b5 20.Rd2 Rd7 21.Rad1 Red8 22.Qc4 (better 22.f4!? Bd4 23.ed4 Qb3 24.ab3=) 22...Nc4-/+ (22...bc4?! 23.e4=) 23.Rc2 Bb6 (23...Bd6 24.e4-/+) 24.Re1 (24.Re2 c5-+) 24...c5-+ 25.Nf3 Rd3 26.Ba1 h6 27.Kf1 g5 28.h3 R3d7 (28...Bc7 29.e4-+) 29.Ke2 Kg7 30.Rcc1 f6 (30...Bc7 31.Rcd1-/+) 31.Red1 Kf7 32.Rd7 Rd7 33.Rd1 Rd1 34.Kd1 Ke6 35.Ke2 (35.Nd2 Nd2 36.Kd2 c4-/+) 35...Kd5 (35...f5 36.Nd2-/+) 36.Kd3 Nd6 (36...f5 37.g4 Nd6 38.Ke2-/+) 37.Nd2 (37.g4 c4 38.Ke2 f5-/+) 37...c4-/+ 38.Ke2 f5 39.f3 (39.g4 f4-/+) 39...Bd8 (39...Bc5 40.g4 Ke5 41.Bb2-/+) 40.g4 f4 41.ef4 (41.e4 Ke5=+) 41...gf4-/+ 42.Bb2 Nf7 (42...Bf6 43.a3-/+) 43.Ne4=+ Be7 44.Bc1 Ke5 45.Kf2 (better 45.a3!?=+) 45...Ng5-/+ 46.Ng5 hg5 47.Ke2 Kd5 (47...Bc5 48.a3-/+) 48.h4 gh4 49.Bf4 Bf6 50.Bd2 Bg7 (50...h3 51.f4-/+) ½-½. Kirylo,Tadeusz - Borucki,Bogumil, corr 1AMM Poland, 1991.

13.h3 Bf3 (13...Bf5 14.Qb3 Rab8 15.Rad1 Bd6 16.c4=) 14.Bf3 Ne5 15.Rb1 Rad8 16.Qe2=+.

13.Nd4 Qe5 14.g3 Be2 15.Qe2 Nd8 16.c4= Bf8 17.Nb5 Qe7 18.Rad1 Ne6 19.Ba3 c5 20.Rd5 Red8 21.Rfd1 a6 22.Nd6 Qc7 23.Ne4 b6 24.Bb2 Be7 25.Qg4 Kf8 26.f4 h6 27.f5 Ng5 28.f6 gf6 29.Nf6 Qc6 30.Nd7?? Ke8= 31.h4 Qe6 32.Qf4?? Nh3–+ (32...Nh3 33.Kh2 Nf4 (33...Rd7 34.Qf1 Rd5 35.Rd5–+) 34.gf4 Qe3–+) 0–1. Kirylo,Tadeusz – Noskowicz,Krzysztof, corr 1. AMM Poland, 1991.

13.h3 Bf5 14.Qb3 +=.

13.h3 Bh5 14.Nd4 Qe5 15.g3 Be2 16.Qe2 Nd4 17.cd4 Qf5 18.Kg2 c5 19.Rac1 cd4 20.Bd4 Qd5 21.Qf3 Qf3 22.Kf3+= f6 23.Rc4 Kf7 24.Rfc1 Ke6 25.e4 b6 26.Ke3 Rad8 27.f4 Rd7 28.a4 Red8 29.Rc6 Kf7 (29...Kf7 30.R1c4 Re8+=). Labahn,Wolfgang – Nock,Joerg, GER–ch qgA32 corr939, 1993.

12.Qc2 Bc3 13.Bc3 Qc5 14.Rab1 Nf4 15.ef4 (15.Qd1 Ne2 16.Qe2 b6=+ 17.Rfc1 Qh5 18.d4 Re6=+ -0.59) 15...Re2 16.Ng5 (16.Ne5 Rdd2 17.Qb3 Be6 18.Qb7 Nd8= -0.19; 16.Rb7 Bf3 17.gf3 Na5 18.Rbb1 Nc4-/+ -0.75) 16...Bf5 17.Qb3 Re7 (17...Re7 18.Rbe1 (18.Rbc1 Qd5 19.Qd5 Rd5=+) 18...Bd3=+ -0.56). Montag,Wilfrid Franz - Daum,Gernot, BdF, 1986.

12.Nd5 Rd5 13.a3 Bd6 14.h3 Bf5 15.Qb3 Rc5 16.Bc3 (16.Qb7? Rb8 17.Qa6 Rb2-+) 16...Qe6 17.Qe6 Be6 18.Rfc1 Rh5 19.Rab1 Ba3 20.Re1 Bc8 21.Nd4 Rg5 22.Nc6 bc6 23.Ra1 Bc5 24.Ra5 Rd5 25.Bf3 Bb6 26.Bd5 Ba5 27.Bc6 (27.Ba5?! cd5 28.Rc1 Bf5=) 27...Re6 28.Ba5 Rc6 29.Rb1 Re6 30.Rb8 Re8 31.Bc7 Bd7 32.Rb7 a6 33.d4 Ra8 34.Bb6 Bc6 35.Rc7 Bd5 36.Rc5 Bb3 37.e4 f6 38.d5 Rb8 39.Ba5 Rb7 40.Rc6 f5 41.f3 (worse 41.Ra6 fe4 42.d6 Rd7+/-) 41...fe4 42.fe4 Kf7 43.Kf2 Re7 44.Kf3 Ba4 45.Rc5 Rb7 46.e5 1-0. pcmvr (2850) - pierred (2800), net-chess.com, 2011.

12.Nd5 Rd5 13.d4 Rh5 (13...Bd6!?=) 14.h3+= Bh3 (14...Bd7!?+=) 15.gh3+/– Rh3 16.Kg2 Rf3? (better is 16...Rh5 17.Rh1 Rh1 18.Qh1 Qe4+/–) 17.Bf3+– (17.Kf3 Qe4 18.Kg3 Bd6 19.Kh3 Re6+=) 17...Qg5 18.Kh1 Bd6 (18...Re6 19.Bg2+–) 19.Rg1 (19.Rg1 Qh4 20.Kg2+–) 1–0. Pott,Brian (1870) – Law,Stephen (1765), IECG, 2006.

12.a3 Bd6!? =+.

12.Qb3 Na5 13.Qc2=+ Ne3 14.fe3 Qe3 15.Rf2 Bf3 16.Bf3 Be1 17.Na3 (17.Bc3 Bf2 (17...Qf2?! 18.Qf2 Bf2 19.Kf2=) 18.Qf2 Nc4 19.Bb7 Qc1 20.Qf1 Qf1 21.Kf1 Ne3 22.Kf2 Nc2-/+) 17...Nc6 Increasing the pressure on the isolated pawn on d4 18.Bc6 (18.Qc6 A deflection 18...Qf2 Theme: Double Attack) 18...bc6 19.Re1 Qe1 20.Rf1 Qe3 21.Rf2 Qe1 ½-½. Sawamura,Tetsushi (1855) - Taner,Harun (1685), IECC, 2002.

12.Qb3 b6 13.a3 Ba5 (13...Bd6 14.Qc2 (14.Rc1 Na5 15.Qd5 Bh2 16.Nh2 Rd5 17.Ng4 Nb3-/+ -0.75; 14.Nc3 Be6 15.Qc2 Nc3 16.Qc3 Bd5 17.Bb5 Bf3= -0.22) 14...Qd7 15.Bd3 h6 16.Nbd2 Nce7 17.e4 Nf4+/- 1.37) 14.Bb5 (14.Rc1!? Qf6 15.Qc2= (15.Nc3 Bc3 16.Bc3 a6 17.Bb4 b5= -0.03) 15...Rd6 16.Nc3 Bc3 17.Bc3 a5= 0.06; 14.Qc2 Ne3 15.Qc6 Rd6 16.Qb7 Nf1 17.Bf1 c5= -0.09; 14.h3 Bh5 15.Rc1 Qf6 16.Ne5 Nd4 17.Bd4 Be2= -0.22) 14...Bf3-/+ 15.Bc6? (15.gf3 Rd6 16.Bd3 Qg5 17.Kh1-+ Qh5-+ -4.03) 15...Qg5-+ 16.g3 Qh5 17.h4 Qg4 (17...Re4 18.Bd5 Rd5 (18...Qd5?! 19.Qd5 Rd5 20.Rc1=) 19.Qd5 Qd5 20.Nd2 Bd2 21.Rfd1 Qd7 22.Kh2 Rh4 23.gh4 Qg4 24.Rd2 Qg2) 18.Kh2 Re6 19.Bd5 Rd5 (19...Rd5 20.Rh1 Bh1 21.Kh1 Qf3 22.Kg1 Be1 23.Qc2 Rf5 24.Kh2 Bf2 25.Qc7 Bg1 26.Kg1 Qf1 27.Kh2 Rf2; worse 19...Bd5 20.f3 Qg6 21.Qd1 Re3 22.Bc1-+) 0-1. Wolff - Schurig,R, corr DDR-Cup, 1990.

12.Qb3 b6 13.Rc1 Na5 14.Qc2 Bd6 15.Nc3 Qe6 16.Nd5 Qd5 17.Qc3 c6=.

12.Qb3 b6 13.Qc2 Ne3 (13...Qf6) 14.Qc6 Rd6 15.Qb7 Nf1 16.Bf1 Bf3 17.Qf3 Rf6= -0.13.

12.Qb3 Be6 13.Qc2 Bd6 14.a3 (14.Nc3 Ncb4 15.Qc1 Nc3 16.Qc3 Qf6 17.e4 Qg6= -0.16) 14...Qf6 15.Bd3 Qh6 16.Rc1 Qh5 17.Nbd2 Bg4= -0.03.

12.Qb3 Nf4 13.Bd1 A) 13...Ng6 14.Qa4 (14.Nc3 Be6 15.Qc2 Bc4 16.Be2 Be2 17.Qe2 Nd4= -0.19; 14.d5=+ Na5 15.Qd3 Bf3 16.Bf3 Nh4 17.Qe2 c6=+ -0.50) 14...Be6 15.Qb5 Bc8 16.Nc3 Qd7 17.Qc4 Ba5= 0.19; B) 13...Be6 14.Qc2 Nh5 15.e4 Nb8 16.a3 Ba5 17.d5 Bd7= 0.12.

12.Qb3 Qf6 A) 13.Bc3 Na5 14.Qc2 (14.Qb2 c5 15.Bb4 Nb4 16.Nbd2 Nbc6 17.Bb5 Re7-/+ -0.84) 14...Bf5 15.Qb2 c5 16.Rc1 b6 17.a3 Bc3= -0.19; B) 13.a3 Na5 14.Qc2 Bd6 15.Nc3 c6 16.Rfc1 Qe6 17.Qa4 Bc7= 0.0.

12.Qc2 a6 13.Nc3 Bc3 14.Bc3= Ncb4 15.Bb4 Nb4 16.Qb2 b5 17.a3 Nd5 18.Ne5 Be2 19.Qe2 Qe6 20.Rfc1 Rd6 21.Rc5 f6 22.Nd3 c6 23.Rac1 Nb6 24.Nf4 Qe4+= 25.Qf3 Nc4 26.Qe4 Re4 27.a4 g5 28.Nd3+= Ree6 29.Nb4 Nb2 30.a5+/– Nc4 31.Ra1 Na5= 32.Rc3 Nc4 33.Na6 Re7 34.Nc5 Rd8 35.g3 Kf7 36.Ra6 Rc7 37.Nd3 Ke7 38.Kg2 Rb8 39.Nb4 Kd7 40.e4 Rb6 41.Ra8 Rc8 42.Ra2 Rbb8 43.Ra7+/– Kd6 44.Rh7 Ra8 45.Nd3 Ra3? 46.Nc5 Rc7 47.Rc7 Kc7 48.Ra3 Na3 49.h4 gh4 50.gh4 Nc4 51.h5 Nd6 52.Kf3 Nf7 53.Ke3 Kd6 54.f4 Nh6 55.f5 Nf7 56.Nb3 Nh6 57.Kf4 Nf7 58.Nc5 Nh6 59.Nd3 Nf7 60.e5 fe5 61.de5 Kd5 62.e6 Nd6 63.h6 (63.h6 Kd4 64.Ne5+–) 1–0. Berlacki,Piotr – Baesler,H, Wch Seniors Bad Woerishofen, 1991.

12.Qc2 Ne3 13.fe3 Qe3 14.Rf2 (14.Kh1 Qe2 15.Qe2 Re2 16.Bc3 Bf3 17.gf3 Nd4 18.Rd1-+ -3.87) 14...Bf3 15.Bf3 Nd4 16.Bd4 (16.Qc1 Qc1 17.Bc1 Nf3 (17...Bc5 18.Nd2-+ -4.06) 18.gf3-+ -4.66) 16...Qd4 17.Nc3 Bc3 (worse 17...Qc3 18.Raf1 c6 19.a4-+) 18.Rd1 (18.Raf1 Be1 19.g3 Bf2 20.Rf2 Re1 21.Kg2-+) 18…Qd1! (18...Qd1 19.Bd1 Re1 20.Rf1 Bd4 21.Qf2 Bf2 22.Kf2 Rf1 23.Kf1 Rd1 24.Ke2 Ra1-+) 0-1. Nicklich,Wolfgang - Grzeskowiak,Felix, corr, 1982.

12.Qc2 Qe6=+ 13.Ng5 (13.a3 Bd6 14.Nc3 Qh6 15.g3-/+ -0.72) 13...Qf5 14.Qf5 Bf5 15.Rc1 (15.Bb5 a6=+ -0.53; 15.a3=+ -0.34) 15...h6 16.Nf3=.

12.Qc2 Qe7 13.Nc3 Bc3 (better is 13...Ne3!? 14.fe3 Qe3 15.Kh1 Bc3–/+) 14.Bc3= Rd6 15.Rfe1 Rh6 16.Bd2 Rg6 17.Qb3 Nb6 18.a4 Be6 19.Qc2 Bd5 20.a5 Nc8 21.h3 Nd6 22.Rec1 (22.a6 Be4 23.Qb3 Qf6=) 22...Qe6 (better is 22...Nd4!? 23.ed4 Qe2–+) 23.Kf1 f5 24.a6 b6 25.Qa4 Ne4 26.Be1 Re7 (26...f4!? 27.Bc4 fe3 28.fe3 Kh8 29.Bd5 Qd5=) 27.Bc4= Rf6 28.Bd5 Qd5 29.Qc4 Qc4 30.Rc4 b5 31.Rc2 Nb8 32.Ra5 Ra6? (better is 32...Rb6!?=) 33.Rb5+/– Rb6 34.Rf5 Nd6 35.Rfc5 Ne8 36.Ne5 Rb1 37.Ke2 g6 1–0. Melich,Jindrich (2070) – Novacek,Josef (2165), CZE–chT2c, 2005.

13.Qc2 Qf6 =+.

12.Qc2 Bg4 13.d4 Nd5 (13...Bd6 14.Nc3=+) 14.Kh1 (14.a3 Bd6=) 14...Qf6 15.a3 Ba5 (15...Bd6 16.Qb3 Qh6 17.g3–/+) 16.Nbd2 (16.Nc3 Bb6=) 16...Bf5 (16...Bd2 17.Qd2 a6 18.Rfc1=) 17.Bd3 (17.Qb3 a6=) 17...Bd3=+ 18.Qd3 Bd2 (18...a6 19.Nb3 Bb6 20.Rfc1=) 19.Qd2 Qf5 (19...Rd7 20.Rab1=) 20.Rfc1= Nf6 (20...Nce7 21.Qc2 Qc2 22.Rc2=) 21.Rab1 Ne4 22.Qc2 Rd6 23.Kg1 Nd8 (23...a5 24.Bc3 b5 25.Rb3=) 24.Ne1 (24.Qc7 Rg6 25.Qf4=) 24...Rc6= 25.Qe2 Rc1 26.Rc1 (26.Bc1?? Nc3 27.Qc4 Nb1 (27...Qb1?! 28.Qc3 Nc6 29.Nd3–+) 28.Qc7 Qd5–+) 26...c6 (26...Nc6 27.Qf3 Qb5 28.Rc2=) 27.Qc2 Ne6 (27...Qe6 28.Nf3=) 28.f3 Nd6 29.Qf5 Nf5 30.Kf2 h5 31.Nd3 f6 32.a4 (32.Rc4 Rd8=) 32...Kf7 33.a5 a6 (33...Re7 34.Ba3 Re8 35.Rb1+=) 34.Rc4 Nd6 35.Rb4 Nb5 36.e4 ½–½. Mehlhorn,U – Ebert,P, H–2076–D, 2000.

12.Nfd2?? Ne3!-+ 13.fe3 Qe3 14.Kh1 (14.Rf2 Be2 15.Qb3 Bd2 16.Nd2 Qd2 17.Qf7 Kh8 18.Rb1 Nd4 19.Qc7-+) 14…Be2 (14...Be2 15.Qc2 Bf1 16.Nf1 Nd4-+) 0-1. AhmedSultanov (1850) - SSShiroVVV (1790), lichess.org, 2020.

12.h3 Ne3 13.fe3 Qe3 14.Rf2 Bf3 15.Bf3 Be1 –/+.

12.h3 h5?? 13.hg4+/– hg4 14.Ne5 Ne5 15.a3!? g3 16.Qc1 +=.

12.h3 h5?? 13.hg4+/– hg4 14.Ne5 Ne5 15.a3!? g3 16.de5 Bc5 =+.

12.h3 h5?? 13.hg4+/– hg4 14.Ne5 Ne5 15.de5 Ne3= 16.Qc1 (16.fe3 Rd1) 16...Nf1=+ 17.Qf1 (17.Kf1 Bd6 18.Kg1–/+) 17...g3–+ 18.fg3 Bc5 (18...Qc5 19.Kh2 Qc2 20.Ba3 Re5 21.Bb4 Qe2 22.Qe2 Re2 23.a3–+) 19.Kh2–/+ Bd4 20.Bd4 Rd4 21.Qf5 (better is 21.Bc4–/+) 21...g6 22.Qh3 (22.Qf6 Qf6 23.ef6 Re2–+) 22...Qe5 23.Nc3 Rd2 (23...Kg7 24.Rf1 Rh8 25.Qh8 Kh8 26.Rf3–+) 24.Rc1 (24.Bc4 Qc3 25.Bf7 Kg7 26.Be8 Qa1 27.Bg6 Qa2 28.Bd3–+) 24...Kg7 (24...Re2?! 25.Ne2 Kg7 26.Rc4 Qe2 27.Rh4–+) 25.Bf3 Rh8 (26.Qh8 Kh8–+) 0–1. Lehmann – de Visser,Arno, corr ICCF W Cup II, 1979.

12.h3 Bh5 13.a3 Ba5 14.Qb3 Bb6 15.Nbd2 Na5 16.Qa4 Qf6 (16...c6 17.Bd3 Bc7 18.Qc2 h6 19.Rfc1 Qe6 20.Bf5= 0.22) 17.Rfe1 c6 18.Qc2 Bg6 19.e4 Nf4 20.Rab1= -0.12.

12.h3 Bh5 13.a3 Ba5 14.Qb3 Bb6 15.Nbd2 Na5 16.Qc2 Bg6 17.Bd3?? (better 17.Qa4= Bf5 18.Rfe1 c6 19.Bf1 Be6 20.e4+= 0.28) 17...Ne3!-+ 18.fe3 Qe3 19.Rf2 Qd3 20.Qd3 Bd3 21.Ne5 (21.Rc1 Re7-+) 21...Re5! 22.de5 Bf2 23.Kf2 Nc4 (23...c5 24.Re1-+) 24.Bc3 Nd2 25.Bd2 c5 26.a4 b6 27.a5 b5 28.Be3 Rd5 29.Rd1 c4 30.Ba7 Re5 31.Re1 Re1 32.Ke1 b4 33.Bc5 b3 34.Bd4 f5 (34...Be4 35.g4-+) 35.g3 (35.Kd2 f4-/+) 35...g5-+ 36.Kd2 f4 (better 36...Be4-+) 37.a6? (37.gf4 gf4 38.Kc3 f3-+) 37...Be4 (better 37...fg3 38.a7 Be4-+) 38.Kc3 (38.gf4 gf4 39.Kc3-+) 38…f3 (38...f3 39.h4 gh4 40.gh4 Kf7-+; 38...fg3?! 39.Kc4 h5 40.Kb3=+) 0-1. Roczniak,Jan - Jerszow,M, corr Poland, 1985.

12.h3 Bh5 13.a3 Ba5 14.Qb3 Bb6 15.Nc3 Nc3 (15...Qe6 16.Nd5 Rd5 17.Rfe1 Red8 18.Rac1 Na5 19.Qc3 Nc6 20.e4= 0.25) 16.Bc3 Qd6 (16...Qe4 17.Rfd1 Qd5 18.Qd5 Rd5 19.Rac1 Na5 20.Kf1+= 0.50; 16...a5 17.Rfd1 Qe4 18.Rac1 h6 19.Bd3 Qd5 20.Qd5+= 0.66; 16...Qd7 17.Rfd1 Qe7 18.Qb5 Bg6 19.d5 Nb8 20.Qb2+= 0.53; 16...Qf8 17.Rfd1 Qe7 18.Ra2 Rd6 19.g4 Bg6 20.d5+= 0.44; 16...h6 17.a4 a5 18.Rfd1 Nb4 19.Bb4 Qb4 20.Qb4+/- 0.97) 17.Rfd1 Ne7 18.Bb4 Qf6 19.Bc5 Nd5 20.Bb6=.

12.h3 Bh5 13.a3 Ba5 14.Qb3 Bb6 15.Nbd2 Qf6 A) 16.Rfe1 Ba5 (16...a6 17.Rac1 Bg6 18.Bf1 Na5 19.Qa4 Bf5 20.Qd1= 0.06; 16...Bg6 17.Rac1 Re6 18.Qa2 Re7 19.Bc4 Red7 20.Bb5+= 0.63) 17.Rad1 b6 18.Qb5 Re6 19.Qc4 Bg6 20.Rc1= -0.06; B) 16.Rac1 Nf4 (16...a6 17.Bd3 h6 18.Qa4 Re6 19.Qc2 Rde8 20.e4+/- 0.78; 16...Bg6 17.Qa4 Nf4 18.Bb5 Nd3 19.Rb1 Nb2 20.Rb2= 0.13) 17.ef4 Re2 18.d5 Nd4 19.Bd4 Bd4 20.Qd3= 0.09.

12.h3 Bh5 13.a3 Ba5 14.Qb3 Bb6 15.Nbd2 Bg6 16.Rac1 Bf5 (16...Qf6 17.Qa4 Nf4 18.Bb5 Nd3 19.Rb1 Nb2 20.Rb2= 0.13; 16...Qe6 17.Rfe1 Qf6 18.Qa4 Bf5 19.Bb5 Bd7 20.Qb3+= 0.44; 16...Na5 17.Qa4 c6 18.Ne5 Bf5 19.Rfd1 f6 20.Nec4= 0.06) 17.Nc4 Qf6 18.Nb6 ab6 19.Qb5 Be6 20.Rfe1= 0.03.

12.h3 Bh5 13.a3 Ba5 14.Qb3 Bb6 15.Nbd2 Bg6 16.Rfc1 Qf6 17.Qa4 Ne3 18.fe3 Re3 19.Re1 Nd4 20.Kh1= -0.06.

12.h3 Bh5 13.a3 Ba5 14.Qb3 Bb6 15.Nbd2 Bg6 16.Nc4 Bf5 (16...Be4 17.Nfd2 Bg6 18.Bf3 Qd7 19.a4 Ba5 20.Rfd1+= 0.38; 16...Nf4 17.ef4 Qe2 18.Rfe1 Qd3 19.Qd3 Bd3 20.Nb6= 0.00; 16...Qe6 17.Nb6 ab6 18.Qb5 Na7 19.Qa4 Ra8 20.Bc4= 0.06; 16...Qf6 17.a4 Ba5 18.Nfe5 Bb4 19.Bf3 a5 20.Ba3+= 0.41; 16...Na5) 17.Nb6 ab6 18.Rac1 Na5 19.Qa4 c6 20.Ne5= -0.09.

12.h3 Bh5 13.a3 Ba5 14.Qb3 Bb6 15.Nbd2 Bg6 16.Rae1 a6 (16...Qf6 17.Qa2 Re7 18.Bc4 Red7 19.e4 Nf4 20.d5+= 0.28; 16...Bf5 17.e4 Na5 18.Qd1 Nf4 19.ef5 Ne2 20.Kh1+- 1.50; 16...Rd7 17.e4 Na5 18.Qa4 Nf4 19.Ne5 Ne2 20.Re2+= 0.41) 17.e4 Nf4 18.d5 Na5 19.Qc3 Qf6 20.Qf6= 0.13.

12.h3 Bh5 13.a3 Ba5 14.Qb3 Bb6 15.Nbd2 Bg6 16.Rfe1 a6 (16...Qf6 17.Rac1 Re6 18.Qa2 Re7 19.Bc4 Qd6 20.Bd5+= 0.44; 16...Bf5 17.e4 Nf4 18.Bb5 Be6 19.Qe3 Qf6 20.Bc6+= 0.41; 16...Qd6 17.Nh4 Na5 18.Qa4 c6 19.Ng6 Qg6 20.Rac1+= 0.34) 17.Rac1 Qf6 18.Bf1 Na5 19.Qa4 Bf5 20.e4= 0.13.

13.Qb3= Bb6 14.Nc3 Be6 15.Qc2 Nc3 16.Bc3 Bd5 17.Bb2 Rd6 18.Rac1 Rh6 19.h3 Qd7 20.Qd1 Rh3 21.Ng5?? (21.gh3 Qh3) 21...Rh4 (21...Rh6 22.Nf3-/+) 22.Bf3 Bf3 (22...Qf5 23.Bd5 Qd5 24.Nf3-/+) 23.Nf3 Rh6 24.Nd2 (24.d5!? Ne7 25.e4-/+) 24...Qd6 Do you see the mate threat? 25.Nf3 Qd5 (25...Rh5 26.Re1-/+) 26.Nh2 (26.Ne5 Ne5 27.de5 Qe4-/+) 26...Re4 27.Ng4 Rg6 28.f3 Re8 29.Re1 Qg5 30.Rc2 h5 31.Ne5 Ne5 32.f4 Nf3 (32...Qg3!? 33.fe5 h4-+) 33.Qf3-/+ Qh4 34.Qf2 Rg3 (34...Qe7 35.f5 Rg4 36.f6 Qf6 37.Qf6 gf6 38.Kf2-/+) 35.e4 Qg4 36.Rce2 White intends e5 (36.Bc3 g5 37.f5 h4-+ (37...Re4?! 38.Re4 Qe4 39.Qg3 Qc2 40.Qg5 Kf8 41.Qd8 Kg7 42.Qg5 Kh7 43.Qh5 Kg7 44.Qg5 Kf8 45.Qh6 Ke7 46.Qe3 Kd7 47.f6=)) 36...h4 37.Kh2 Ba5 38.Rf1 White prepares f5 38...Re6 (38...h3 39.Qg3 Qe2 40.Rf2 Qe4 41.d5-+) 39.e5 (39.Rb1 f5 40.e5 Rd3-/+) 39...Rg6 (39...Rh6!?-/+) 40.f5=+ Rg5 (40...Rh6 41.e6 h3 42.ef7 Kf7 43.Qg3 hg2 44.Kg2 Qe2 45.Rf2-/+) 41.Rg1?? (41.e6 Rf5 42.ef7 Rf7 43.Qf7 Kh7 44.Rf5 Qe2 45.Rh5 Qh5 46.Qh5 Kg8 47.Qa5+-) 41…h3 (41...h3 42.Re4 Qe4 43.Qg3 Rg3 44.Kg3 Bd2-+) 0-1. Dopper,Johan - Mes,Andre, corr, 1990.

13.Qb3 Bb6 14.Nc3 Be6 15.Qc2 Nc3 16.Bc3 Bd5 17.Bb2 Rd6 18.Bd3 Bf3-/+ 19.g3?? (better 19.gf3 Rh6 20.Bf5-/+) 19...Rh6-+ 20.Be2 (20.Rfe1 Qg5 21.Be2 Be2 22.Qe2 Bd4 23.Bd4 Nd4-+) 20...Nd4! 21.Bd4 (21.Bd4 Be2 Decoy; 21.ed4 Qe4 Double attack (21...Qe2 Pinning; 21...Qe2 Deflection; 21...Qe4 Decoy)) 21...Bd4 22.Ra2 (22.Bf3 Ba1 23.Bb7 Bb2-+) 22...Bd5 23.Bc4 Rc6 24.ed4 (24.Bd5 Rc2 25.Rc2-+) 24…Bc4 (24...Bc4 25.Qb1 Re6-+) 0-1. Di Pietro,Rosario (1665) - Lanzani,Paolo (1890), WB/006 - webserver classe B n., 2008.

13.Qb3= Bb6 14.Nc3 Nf6 15.Na4 Ne4 16.Nb6 ab6 17.Rad1 Na5 (17...Ng5 18.Kh1=) 18.Qc2 c6 19.Rfe1 Rd5 20.Ne5 Be2 21.Qe2 f6 22.Nd3 c5 (22...b5!?=) 23.Nf4+= Rd7 24.f3 Nd6 25.Nd5 Qd8 26.Qc2 Ndc4 27.e4 Rd6 28.Bc3 (28.a4 Qd7+/-) 28...cd4 29.Rd4 b5 30.Bb4 Rd7 31.Red1 Kh8 32.R4d3 Nc6 33.Bc5 N6e5 34.Rb3 b6 35.Bd4 Rd6 36.Qc3 White gets the initiative (worse 36.Rb5 Na3 37.Qb3 Nb5 38.Qb5 Qd7=+) 36...Rd5 (36...Qd7!?+/-) 37.ed5 Qd5 38.Rbb1 Rd8 39.Qa1 Qa8 (39...Ra8 40.Be5 Qe5 41.Qe5 fe5 42.Rb5+-) 40.Rb5 Nf3 (better 40...Qa4!? 41.Rdb1 Qa3 42.Bb6 Re8+-) 41.gf3+- Qf3 42.Rg5 Ne5? (better 42...Qa3 43.Qa3 Na3+-) 1-0. Kuhlmann,AEJ - Polee,JRB, 1988.

13.Qb3= Bb6 14.Nbd2 Na5 15.Qd1 (15.Qc2 Nf4 16.Bd1 Ng6=) 15...c5 16.Bb5 Bd7 17.Qa4 a6 18.Bd7 Qd7 19.Qd7 Rd7 20.Ne5 Rdd8 21.Ndc4 Nb3 22.Rad1 (worse 22.Nb6 Nb6 23.Rab1 Nd2 (23...cd4?! 24.Bd4 Nd4 25.ed4 Rd4 26.Rb6 Re5 27.Rb7=) 24.dc5 Na4-/+) 22...Bc7 23.Rd3 b5 24.Rb3 cd4 (24...f6 25.dc5 fe5 26.Nd2 Ne3 27.Re3 Rd2 28.Ba1=) 25.ed4 (worse 25.Bd4 f6 26.Nf3 bc4=+) 25...f6 26.Na5 fe5 27.Nc6 Rd6 28.Ne5 Nf4 29.Nf3 Bb6 (Exerts pressure on the isolated pawn) 30.Re3 Red8 31.Re4 Ne6 32.Rd1 Nc5 33.Rg4 Na4 34.Ba1 Rd5 35.Re1 Rc8 36.Rge4 Rc7 37.h4 h6 38.g4 Ba5 39.Rd1 Nc3 40.Bc3 Bc3 41.Re3 (41.Rd3 a5+/-) 41...a5 42.Re5 Rcd7 43.Rd5 Rd5 44.Rd3 b4 45.ab4 Bb4 46.Nd2 (46.Rb3 g5+=) 46...Be7 (46...Bc5 47.Nf3=) 47.Ne4 (47.h5!?+=) 47...Bh4= 48.f4 Be1 49.Nc3?? (better 49.Rd1 Bb4 50.Kf2=) 49…Bc3-+ (49...Bc3 50.Rc3 Rd4 51.Rc8 Kh7-+) 0-1. Poschmann,Hans - Grund,Karl, corr, 1972.

13.Qb3 Qf6 14.Qb5=+.

13.Qc2 Ne3! 14.fe3 Qe3 15.Rf2 Bf3 16.gf3 Nd4 (16...Nd4 17.Bd4 Qd4–+ (< 17...Rd4 18.Bc4 Be1 19.Bf1–+)) 0–1. Osolinysch – Hempel,R, corr ICCF, 1989.

13.Qc2 Qf6 =+.

13.Nbd2?? Ne3!-+ 14.Qa4 Bd2 15.Nd2 (15.fe3 Be3 16.Kh1 Nd4 17.Nd4 Bd4 18.Bc4 Bb2 19.Rf7-/+) 15...Be2 16.Rfe1 (16.fe3 Qe3 17.Rf2 Qd2-+) 16…Ng2! (16...Ng2 17.Kg2 Qg5 18.Kh1 Qd2-+) 0-1. Alderden,Dirk - Dopper,Johan, corr NED-ch, 1991.

13.Nbd2? Ne3 14.fe3 Qe3 15.Rf2 Bd2 16.Qd2 Qd2 17.Nd2 Re2 18.Re2 Be2 –+.

13.Nbd2? Ne3!-+ 14.fe3 Qe3 15.Rf2 Bd2 16.Kf1 Ba5 17.Rc1 (17.Bb5 Re6-+) 17...Bb6 18.Rc3 (18.Rc4 Qe6-+) 18...Qe7 19.Rc4 (19.Rd3 Qd6-+) 19...Be6 (19...Bf3!? 20.Rf3 Qd6 21.Bd3-+) 20.Ra4 Na5 (20...Bd5 21.Bc4-+) 21.Qd2 Nb3 22.Qc3 Bd5 23.Bd1 Qe3 24.Qc2 (24.Re2 Qc3 25.Re8 Re8 26.Bc3-+) 24...Bf3 25.gf3 Nd4 (25...Nd4 26.Bd4 Bd4-+) 0-1. Schirmer,Michael - Hoffmann,HG, BdF, 1984.

13.Nbd2? Nf4?? 14.Re1 (14.Bb5 Bd2 15.Bc6 bc6 16.Qd2 Nh3 17.Kh1 Bf3 18.gf3 Qg5=+) 14...Bf3= 15.Nf3?? (better is 15.Bf3 Nd5 16.Rb1=) 15...Be1–+ 16.Qe1 Ne2 17.Qe2 Rd6 (17...Qe6 18.Qb5–+) 18.a4 (18.Qb5 Nd8–/+) 18...Rh6 (18...Qe6 19.Qb5 b6 20.Rc1–/+) 19.h3 Rg6 20.d5 Nb4 21.Qc4 Qd6 22.e4–/+ Qf4 (23.Qb4 Qf3–+) 0–1. Helgesen,Helge – Sternik,Ryszard, corr 3GMM–25, 1995.

13.Nfd2?? Ne3!-+ 14.fe3 Qe3 15.Rf2 Be2 16.Qe2 (16.Qb3 Bd2 17.Nd2 Qd2 18.Qf7 Kh8 19.Raf1-+) 16...Qe2 17.Re2 Re2 (17...Re2 18.Kf1 Rde8-+) 0-1. Dobrzycki,Bogumil - De Visser,Arnold, corr, 1980.

13.Ne5 Ne5 14.Bg4 Qg5?? (14...Ng4 15.Qg4 c6 16.Rc1=+) 15.Bh3?? (15.de5 Ne3 A) 16.fe3?! Rd1 17.Bd1 Qe3 18.Kh1 Qd3=+ (18...Re5?! 19.Be5 Qe5 20.Ra2=); B) 16.Qc1+/–) 15...Ne3 (better is 15...Nc4 16.Qb3 Ndb6=) 16.Qe2?? (16.fe3 Qe3 17.Kh1=) 16...Nf1–+ 17.de5 Nd2 (18.Bg4 c5–+) 0–1. Mazur,Z – de Visser, corr, (year?).

14.Rf2 Bc5 =.

14.Rf2 Bf3 15.gf3 'N' 15...Nd4 16.Bd4 Rd4 17.Qf1 Bd6 (better 17...Bc5 18.Kh1 Qb3-+) 18.Kh1 Rh4 (18...Re5 19.Ra2-+) 19.Ra2 '-/+' 19...Re6 (better 19...Qf4 20.Bd1 Re3-/+) 20.Bc4 '?' (better 20.Bd3-/+) 20...Reh6 '-+' 21.Rac2 (21.Rad2 g5 22.Rd6 Rd6-+ (22...cd6?! 23.Nd2-+)) 21...Qf4 (better 21...Bh2 22.Rh2 Qf4 23.Rh4 Qh4 (23...Rh4?! 24.Kg1 Qg5 25.Rg2 Qc5 26.Qf2 Rc4 27.Qc5 Rc5 28.Rb2-+) 24.Kg1 Qh1 25.Kf2 Rh2 26.Ke3 Qf1 27.Bf1 Rc2-+) 22.Qe2 Kf8 23.Rg2 '?' (23.Bb3 R6h5 24.Rd2 Qh6 25.Rd6 Qd6-+) 23...Qf6 (better 23...R6h5 24.Bd3 Qh6-+) 24.Qe3 '-/+' 24...g6 (24...R6h5 25.Bf1-/+) 25.Bd3 (25.Nc3 R6h5 26.Ne4 Qa1 27.Qg1 Qg1 28.Kg1 Ba3=+) 25...Rh3 (25...R6h5 26.Be4-/+) 26.Be4 Qh4 (26...c6 27.Rce2-/+) 27.Qf2 (27.Qg1 c6 28.Rce2 Qf4-/+) 27...Bg3 (27...c6 28.Re2-/+) 28.Qg1 c6 29.Nc3 (29.Rce2 Bd6=+) 29...Bd6 (29...Rh5 30.Rce2-/+) 30.Nd1 (30.Qa7 Bh2 31.Rgf2 Bf4 32.Kg2 Rh1 33.Qc5 Kg8 34.Qf8 Kf8 35.Bd3 Qg5) 30...Qf4 31.Nb2 (31.Ne3 R6h4=+) 31...R6h5 (31...Rf3 32.Bf3 Qf3-/+) 32.Na4 '?' (32.Nd3 Qh4 33.Nc5 Qe7=+) 32...Qe5 (better 32...f5!? 33.Nc5 Kf7 34.Nb7 fe4 35.Nd6 Qd6 36.fe4 (36.Qa7 Ke6 37.fe4 Qd1 38.Qg1-+) 36...Ra3-+) 33.Rce2 (33.Nb2 Qf6 34.Nc4=+) 33...Qa5 (better 33...Qb5!? 34.Qd1 Bc7-/+) 34.Qd4 Qe5 35.Qg1 Qf4 36.Rc2 Kg7 37.Nc5 '=' 37...Bc5 (37...b6 38.Nd3 Qf6 39.Bc6 Bh2 40.Rh2 Rh2 41.Rh2 Qc6 42.Qe3=) 38.Rc5 f5 39.Bc2 (better 39.Bc6 bc6 40.Rc6=) 39...Qf3 (better 39...Rf3 40.Bd1 Rf1 41.Bh5 Rg1 42.Rg1 Qe4 43.Rg2 f4-+) 40.Qd4 Kh6 41.Qd2 Qe3 42.Qe3 Re3 43.a4 Rh4 44.Kg1 Re1 45.Kf2 Rc1 46.a5 Ra4 47.Rg3 (47.Ba4 Rc5) 47...Ra2 48.Rh3 (48.Rgc3 Kg5-+) 48...Kg7 49.Rhc3 Rca1 50.Rb3 Rc1 51.Rbc3 Kf6 =-+!? 52.Kf3 Rf1 53.Ke2 Rh1 54.Rh3 h5 55.Kd2 a6 56.Ke3 '?' (better 56.Rb3 Rh2 57.Kc1 Rh1 58.Kd2-+) 56...Ra3 57.Bd3 Rha1 58.Kd4 (58.Rc4 Ra5 59.Kd2 Rd5-+) 58...Ra5 59.Rc3 (59.Bc2 R5a3 60.Rcc3 Rc3 61.Rc3 Ra5-+) 59...Rd5 60.Ke3 (60.Kc4 b5 61.Kb3 c5-+) 60...c5 61.Rf3 (61.Be2 b5 62.Kf2 b4-+) 61...g5 (61...b5 62.Rf4-+) 62.Kf2 (62.Bc4 Re5 63.Kd2 b5-+) 62...b5 63.Be2 (63.Rh3 c4 64.Be2 h4-+) 63...c4 (63...g4!? 64.Rfe3 f4 65.Re8-+) 64.Ra3 0-1. Buczinski,Henryk (2135) - Kosikowski,T (2000), corr WTSz/A POL, 1994.

14.Rf2 Bf3 15.Bf3 Bc5 16.dc5 Rd1 17.Bd1 Rd8–/+.

14.Rf2 Bf3 15.Bf3-/+ Be1 Threatening mate... how? 16.Qe2 Bf2 17.Qf2 Nd4 18.Qe3 Re3 19.Bd4 Rd4 20.Kf2 Rb3 21.Ke2 c5 22.Nd2 Rb2 (22...Rb2 23.Rd1 c4-+) 0-1. Woschkat,Karl_Heinz (2145) - Buettner,Fritz (2050), CiF, 1994.

14.Rf2 Bf3 15.Bf3 Be1 16.Qe2 Bf2 17.Qf2 Nd4 18.Qe3 Re3 19.Kf2 Rb3 20.Bc1?? (20.Bd4 Rd4 21.Ke2-+) 20...Nf3 21.gf3 Rd1 22.Nd2 (22.Bf4 Rb2 23.Ke3 Rbb1-+) 22…Rc3 (22...Rc3 23.Rb1 Rcc1-+) 0-1. Rost,R - Leisebein,Peter, corr, 1997.

14.Kh1 Qe2 15.Qe2 (15.Bc3 A) 15...Qd1 16.Rd1 Bf3 17.gf3 Bc3 18.Nc3 Nd4 19.Rd3 Ne6-+ -3.41; B) 15...Bc3 16.Qe2 (16.Nc3) 16...Re2 17.Nc3 Rc2 18.d5 Rc3 19.dc6 Bf3-+ -3.19; C) 15...Bf3 16.gf3 Qd1 17.Rd1 Bc3 18.Nc3 Nd4 19.Rd3 Ne6-+ -3.41) 15...Re2 16.Bc3 (16.Ne5 Ne5 (16...Be7 17.Nc6 bc6 18.Bc3 c5 19.dc5 Rd3-+ -3.41) 17.ab4 A) 17...Rb2 18.de5 a6 19.Rc1 (19.Nc3 Rb4-+ -3.75) 19...Rb4-+ -3.75; B) 17...Nd3-+ 18.Bc3 Be6 19.Rf3 Bd5-+ -3.75; 16.Nc3 Rb2 17.ab4 Bf3 18.gf3 Nb4 19.Rfc1 (19.Rfd1 a6-+ -3.75) 19...a6-+ -3.66) 16...Bf3 17.gf3 Bc3 (17...Be7!? 18.Rd1-+ (18.h3 Nd4 19.Bd4 Rd4-+ -3.88) 18...Rd5 19.Nd2 Nd4-+ -3.84) 18.Nc3 Rc2 (18...Re3 19.Nb5 Nd4-+ -3.19) 19.Nb5 (19.d5 Rc3-+ -3.19) 19...Rd5 (19...Nd4 20.Nd4 Rd4 21.Rfc1-+) 20.Rae1 (20.Rfe1 h6 21.Nc7 Rd4-+) 20...g6 21.Re8 Kg7 22.Nc7 (22.Rb1 Nd4 23.Nd4 Rd4-+) 22...Rh5 (worse 22...Rd4 23.Rb1-+) 23.Kg1 (23.h4 Rh4 24.Kg1 Nd4-+) 0-1. Van Beest,E - Leentfaar,H, corr Netherlands, 1975.

13.fe3 Qe3 14.Rf2 Bd2 15.Bb5 Bf3 16.Qd2 Bd5 (16...Qd2 17.Rd2 Bd5-+ -2.19) 17.Qe3 Re3-+ -2.25.

13.fe3 Qe3 14.Rf2 Bd2 15.Bb5 Bf3 16.Qf3 Qf3 17.Rf3 Be3 18.Kf1 Bd4 19.Bc6 bc6 (19...bc6 20.Bd4 Rd4-+; 19...Bb2?! 20.Be8 Ba1 21.Bf7 Kh8 22.Bd5-+) 0-1. Rondio,Thomas - Boesenberg,Egbert, corr DDR, 1988.

13.fe3 Qe3 14.Rf2 Bd2 15.Bc4 Nd4 16.Bf7 (16.Bd4 Rd4 17.Bf7 Kf7 18.Nd4 Qf2 19.Kf2 Be3 20.Kg3 Bd1 21.Rd1 Bd4 22.Rd4 c5 23.Rf4 Ke6-+) 16...Kf7 17.Bd4 Rd4-+ -2.31.

13.fe3 Qe3 14.Rf2 Bd2 15.Qd2 Qd2 16.Nd2 Re2 (16...Be2 17.Re1 Bb5-+ -2.44) 17.Re2 Be2 18.Re1 Bb5 19.Nf3 Nb4 20.Re7 Nd5 (worse 20...Na2 21.Rc7 Bc6 22.Ne5-+) 21.Re5 f6 22.Re4 Re8 23.Re8 Be8 24.a3 Bc6 25.Kf2 Nf4 (25...a5 26.g4-+) 26.Ne1 Be4 27.Bc1 Nd5 28.Bd2 Kf7 29.g3 Ke6 30.Ke2 Kd7 31.Bc1 Kc6 32.Bb2 (32.Nd3 Nb6-+) 32...Kb5 (better 32...b5 33.Nd3-+) 33.Nf3?! (33.Nd3 Bd3 34.Kd3-+) 33...Bf3 34.Kf3 Kc4 35.Ke4 (35.Ke2 Nc3 36.Kd2 Nb5-+) 35...Nb6 (35...Nc3 36.Kf3-+) 36.Bc1 Nc8 37.Bf4 (37.Kf5 Kd5-+) 37…Nd6 (37...Nd6 38.Kf3 g5-+) 0-1. Jentsch,Joachim - Stiemerling,D, corr DDR, 1988.

13.a3 Ba5 14.Qb3 Bb6 15.Re1 (15.Nc3!? Be6 16.Qc2= Nc3 17.Bc3 h6= 0.00) 15...Bf3=+ 16.gf3? (16.Bf3 Nd4 17.Bd4 Bd4-/+) 16...Qg5 (16...Qh4 17.Nc3 Nc3 18.Bc4-+) 17.f4? (better 17.Nc3!?=+) 17...Qh4-/+ 18.Kg2? (better 18.Nc3 Nc3 19.Bc3 Qf2 20.Bh5-/+) 18...Ne3!-+ 19.fe3 (19.Qe3 Re3) 19...Qe1 20.Nc3 Qh4 21.Bc1 Nd4! 22.ed4 Bd4 (22...Bd4 23.Qb7 Qf2 24.Kh3 Bc3-+) 0-1. Monsalvo,Alfredo - De Visser,Arnold W, corr ICCF theme, 1979.

13.a3 Ba5 14.Qb3 Rd6 15.Rc1=+ (15.Qb7? Rb8 16.Qa6 Rb2-+) 15...Be6 16.Qc2 Qd7 17.Bd3 f5= 0.25).

13.a3 Ba5 14.Qb3 Rd6 (14...Qf6 15.Nc3 (15.Qb7? Rb8 16.Qa6 Rb6-+) 15...Nf4 16.ef4 (16.Qb7 Bc3 17.Ne5 Be2 18.Bc3 Bf1 19.Rf1 Ne5 20.de5 Qg6-+) 16...Bc3 17.Bc3 Re2 18.d5+=) 15.Nc3 (15.Rc1 Qf6=) 15...Bc3 (15...Be6 16.Nd5 Bd5 17.Qc2=+) 16.Bc3= Nc3 (16...Be6 17.Qb2=) 17.Qc3 Rh6 (17...Qf6 18.Rab1 b5 19.Rbc1=) 18.Ng1 (18.Rab1 b5=) 18...Qd6 (18...Be2 19.Ne2 Qh4 20.h3=) 19.h3 Be6 (19...Bf5 20.Qb2 Be4 21.Rfc1=) 20.Rac1 f5 (20...Bd5 21.Bf3=) 21.Bf3 (21.Ba6!? Nd4 22.Bb7+/- (22.ed4?! ba6 23.Rfe1 Rf6=)) 21...Bd5= 22.Bd5 (22.Qc5 Rd8=) 22...Qd5 23.Qc4 Rd6 24.Ne2 (24.Nf3 Ree6=) 24...g5 (24...Qc4 25.Rc4 Kf7 26.Rb1+=) 25.Ng3 (25.Qc2 Qe6+=) 25...f4 (25...Qc4 26.Rc4 f4 27.Nf5=) 26.Nf5 Qc4 27.Rc4 Rd5 28.g4 fg3 (28...Ra5 29.a4 Ne7 30.ef4 Nf5 31.gf5 Rf5 32.Rg1+=) 29.Ng3 (29.fg3 Ne7 30.Nh6 Kg7+=) 29...Re7 (29...Kf7 30.Rc3 h5 31.Rb1+/-) 30.Rfc1 (30.Rc3 Na7=) 30...Kf7 (30...h6 31.Rb1 Kf7 32.Kg2=) 31.Rc5 White fights for the Initiative 31...Rc5 32.Rc5 Kg6 (32...Kf6 33.Kg2+=) 33.Kg2+= Nd8 (33...Rf7 34.Rc4+=) 34.h4 h6 (34...gh4 35.Nf5 Rd7 36.Nh4 Kf6 37.Rh5+/-) 35.h5 Kf6? (better 35...Kh7!?+=) 36.Rf5+- Ke6 37.d5 (better 37.Re5!? Kd7 38.Re7 Ke7 39.Nf5 Kd7 40.Nh6+-) 37...Kd7 (37...Kd6 38.Rf8 Rd7 39.e4+=) 38.Rf6 Rh7 39.e4 (39.Rg6 Nf7+/-) 39...Nf7 40.Ne2 (40.Kh3 Nd6+/-) 40...Nd6+= 41.Nc3 (41.Kf3 Nc4+=) 41...Ne8= 42.Rf3 Re7 43.Rf8 Kd6 (43...Ng7!? 44.Rh8 Nh5 45.Rh6 Nf4 46.Kf3 Nd3+=) 44.Rh8+/- Kc5 45.Rh6 The passed pawn on h5 will become decisive later 45...Kd4 46.f3 (46.Ne2!? Ke4 47.Rg6 Kd5 48.Rg5 Ke6 49.Kf3+=) 46...Kc3= 47.Re6 Rh7 (better 47...Re6 48.de6 g4+=) 48.Re8+- Kb3 49.Rb8 (49.Rc8 Rh5 50.Rc7 b5+-) 49...b5 (49...b6 50.d6 cd6 51.Rb6 Ka3 52.Ra6 Kb4 53.Rd6 Rh5 54.Kg3+-) 50.Rb7 (better 50.Ra8+-) 50...Rd7? (better 50...Rh5 51.Kg3 Rh1+/-) 51.Ra7+- Ka3 52.Ra6 Kb4 53.Kg3 Kc3 54.Ra7 (54.Kg4 b4 55.Kg5 b3+/-) 54...b4 55.d6 (55.Kg4 b3 56.d6 Rd6 57.Rc7 Kd2+/-) 55...Rd6 56.Rc7 Kd4 57.Rb7 Kc3 58.Kg4 Rf6 59.h6 (59.e5 Re6 60.Kf5 Re8+-) 59...Rf4? (better 59...Rh6 60.Kg5 Re6+/-) 60.Kg5+- Rf3 61.h7 Rh3 62.e5 Kd4 (62...Rh1 63.e6 Kb3+-) 63.Rb4 Ke5 64.Rh4 (64.Rh4 Rh4 65.Kh4+-) 1-0. Teichmann,Erik (2365) - Rujevic,Mirko (2345), Gold Coast Parkroyal Int, 2000.

13.a3 Ba5 14.h3 Bf5 15.Bd3 Bd3 16.Qd3 Rd6 17.Nbd2 Bd2 18.Nd2 Qd7 19.Ne4 Rh6 20.Kh2 Qf5 21.Nc5 Qd3 22.Nd3 f5 23.Rab1 b6 24.Rfc1 Kf8 25.Rc2 Ke7 26.Rbc1 Kd7 27.Rd2 Kc8 28.Ne5 Kb7 29.Kg3 Ne5 30.de5 c6 31.f4 Rg8 32.Kf2 g5 33.Rd4 gf4 34.ef4 b5 35.Rg1 Kc7 36.Rc1 Rhg6 37.g4 Kb6 (37...Nb6 38.g5=) 38.g5+= h6 39.h4 Re6 40.Kf3 hg5 41.hg5 Rh8 42.Rg1 a5 43.Rdd1 Rh4 44.Bc1 Re8 45.Rh1 Reh8 46.Rh4 Rh4 47.Rg1 Rh3 48.Kf2 Rh7 49.Kg3 b4 50.ab4 ab4 51.g6 Rh6 52.Kf3 Rh3 53.Ke2 Rh8 54.Kd3 1–0. Rajala,Olavi (1860) – Salminen,Kari, Serveri, 2007.

13.a3 Bd6=+.

13.Qc2 Qf6=+.

13.Bc4 Qf6 14.Be2 Bd6 15.Nbd2 Qh6 16.a4 Qh5 17.Re1 Ncb4 18.Ne5? (18.Rb1 b6=+) 18...Be5 19.de5 Nd3! 20.Bg4 (20.Bd3 A deflection 20...Bd1) 20...Nf2 21.Kg1 Nd1 (worse 21...Qg4 22.Kf2 Qe6 23.Kg1+/-) 22.Bh5 Nb2 23.Reb1 Nd3 24.Rb7 Re5 25.Bf3 Nc5 (25...Re3 26.Bd5 Re2 27.Rd1=) 26.Nc4 Nb7 27.Ne5 f6 (27...c5!?-/+) 28.Nc6=+ Ne3 29.Nd8 (29.Nd8 Nd8 30.Re1 Ng2 31.Kg2+-) 1-0. Kirdin,Georgy Pavlovich – Kamenev, corr URS, 1990.

13.Nbd2 Nc3-/+ 14.Bc3 Bc3 15.Rb1 (15.Rc1 Bd2 16.Qd2 Nd4 17.Nd4 Be2 18.Qe2 Rd4 19.Qb2-/+) 15...Rb8 (better 15...Nd4!? 16.Nd4 Be2 17.Qe2 Rd4-/+) 16.Bd3 Bb4 (16...Bd2!? 17.Qd2 h6=) 17.Qc2+= g6 18.h3 Bf3 19.Nf3 Bd6 20.Bc4 Qf6 (20...Nb4 21.Qc3=) 21.Rfe1 (21.Qc3 Na7+=) 21...b5 (21...Nb4 22.Qc3 c5 23.a3=) 22.Bb3 (22.Bb5 Nb4 23.Rb4 Bb4 24.Be8 Be1 25.Bf7 Qf7 26.Ne1 Rb5+/-) 22...Nb4= 23.Qd2 c5 24.a3 (24.e4 Bf8+=) 24...Nc6 25.dc5 Bc5 26.Qa2 (26.Rbc1 Ba3 27.Bf7 Qf7 28.Rc6 Red8+=) 26...Ne5 27.Ne5 Re5 28.Red1 Rf5 29.Rd2 h5 (29...Qe7 30.a4=) 30.Rbd1 Rf8 31.a4 ba4 32.Ba4 Bb4 33.Re2 a5 34.Bb3 Qh4 (34...Rc8 35.Bd5+=) 35.f4 (35.Rd7!?+/-) 35...Qg3 36.Qc2 (better 36.Rd7=) 36...Bd6?? (better 36...Rc5 37.Bc4 Rfc8=+) 37.Rd6+- Re8 (37...h4 38.Bd5 Kh7 39.Qc7+-) 38.Qd2 (38.Qc4 Kh7 39.Bc2 Ree5+-) 38...Rc5 (38...Rb8 39.Rd8 Rd8 40.Qd8 Kg7 41.Qd4 Rf6 42.Bf7+-) 39.Rd7 Rec8 (39...Rf5+-) 40.Re1 (40.Re1 Rf5 41.Rf7 Rf7 42.Bf7 Kg7 43.Rd1+-) 1-0. opperwezen (2825) - Maci (2510), lichess.org, 2016.

12.fe3 Qe3 13.Rf2 Bf3 14.gf3 Rad8 15.Qd3 Qf4 16.Bf1 Nd4 17.Kh1 Nf5 18.Qc4 Qc4 19.Bc4 Ne3 20.Bb3 Nd1 21.Bd1 (21.Rc2 Re1 22.Kg2 Ne3 23.Kf2 Nc2 24.Bc2 Rb1 25.Bh7 Kh7 26.Rb1 Rd2 27.Ke3 Rh2-+) 21...Rd1 22.Kg2 Ree1 23.Rc2 Rb1 (23...Rg1 24.Kf2 Bd6 25.Rd2 Rb1 26.Rb1 Rb1 27.Be5-+) 24.Rb1 Rb1 25.Bd4 Rd1 26.Ba7 Rd2 27.Rd2 Bd2 28.Kg3 f5 29.a4 Kf7 30.Bd4 g6 31.Kf2 Ke6 32.Ke2 Bb4 33.Kd3 Kd5 34.Bf6 Bd6 35.h3 Be5 36.Bg5 Kc5 37.Bd2 g5! 38.Bg5 Kb4 39.a5 Ka5 40.Kc4 b5 41.Kd5 Bc3 42.Bf4 Kb6 (42...c6!? 43.Kc6 b4 44.Kd5-+) 43.Be3 Kb7 44.Bf4 c6 45.Kc5 Bf6 46.Bd6 Bh4 47.Kd4 Bf2 48.Kc3 (48.Ke5 c5 49.Kf5 Kc6-+) 48...c5 49.Bf4 Kc6 50.Bd2 c4 51.Kb4 Bc5 52.Ka5 (52.Kc3 Kd5 53.Be1 b4 54.Kc2 Bd6-+) 52...b4! 53.Bc1 (53.Bb4 Bb6 Combination) 53...Kd5 54.Ka4 Kd4 55.h4 Kc3 56.Kb5 Be7 (56...Be7 57.Bf4 b3-+) 0-1. Korchut,Adam (2035) - Law,Stephen (1870), IECG, 2004.

12.fe3 Qe3 13.Rf2 Bf3 14.gf3 (14.Bf3 Be1 15.Qe2 Bf2 16.Qf2 Qf2 17.Kf2 Nb4-+) 14...Re6 (14...Rad8 15.Qd3-/+) 15.Kf1 (15.a3 Ba5=) 15...Rg6 (15...Rd8 16.Qc2=+) 16.Bd3 (16.a3 Ba5=) 16...Be1=+ Threatening mate: Qxf2 17.Qe2 Qf2 (17...Bf2 18.Bg6 Qe2 19.Ke2 Bd4 20.Bd4 Nd4 21.Ke3 fg6 22.Kd4 Rd8 23.Ke3-/+) 18.Qf2 Bf2 19.Bg6 (worse 19.Kf2 Rh6 20.Kg2 Rd8-/+) 19...Bd4 20.Bd4 Nd4 21.Be4 c6 22.Nd2 (22.Nc3 f5 23.Rd1 fe4 24.Rd4 ef3=) 22...Rd8 (22...f5 23.Bd3=) 23.Rc1 (23.Nb3 f5 24.Rd1 fe4 25.Rd4 Rd4 26.Nd4 ef3 27.Nf3 c5=) 23...g6 24.a4 (24.Kf2 Kg7=+) 24...Ne6 (24...f5 25.Bc2=+) 25.Ke2 Kg7 26.Nb3 Nd4 (26...f5 27.Bb1=+) 27.Nd4= Rd4 28.Rb1 Rd7 (worse 28...Ra4 29.Rb7 c5 30.Bd5+/-) 29.Rb3 (29.a5 Rc7=) 29...f5 30.Bc2 (30.Bd3 Kf6=) 30...c5 (30...Kf6 31.Bd3=) 31.Rd3 Re7 32.Re3 Kf6 33.Re7 Ke7 34.Ke3 Kd6 (34...Kf6 35.f4=) 35.f4 (35.Bb3 g5=) 35...Kd5 36.Kd3 c4 37.Kc3 h6 38.h4 (38.Bb1!?=) 38...h5=+ 39.a5 (39.Bb1 b6 40.Ba2 Ke4=+) 39...b6 (better 39...b5-/+) 40.ab6? (better 40.Ba4 Ke4 41.a6 Kf4 42.Kc4=+) 40...ab6-+ 41.Ba4 ½-½. Geisensetter,Kurt - Breitschuh,Ulrich, corr DDR-ch M959, 1990.

12.fe3 Qe3 13.Rf2 Bf3 14.gf3 Re6 15.Kf1 Rg6 16.Qd3 Qg5 –+. Auerswald.

12.fe3 Qe3 13.Rf2 Bf3 14.Bf3 Be1 15.Qc2 Bf2 16.Qf2 Qf2 17.Kf2 Nb4.

12.a3 Ne2=+ 13.Qe2 Ba5 14.Nbd2 (14.Rd1 Rad8=+) 14...Bd2-/+ 15.Qd2 Bf3 16.gf3 Qg5 (16...Qf6 17.Qd1-/+) 17.Kh1=+ Qh5 18.Qd1 Qh4 (18...Rad8 19.Rg1=+) 19.f4 Kf8 (19...Ne7 20.Qf3=+) 20.Rc1 Re6 (20...Rad8 21.Rc5=) 21.Qf3 (21.Rg1!? Qf2 22.d5 Qb2 23.de6+/-) 21...Rh6= Do you see the mate threat? 22.Qg2 Qh5 23.f3 Rg6 24.Qf2 Qf5 25.Rc5 Qd7 26.f5 Rd6 27.Qg2 (27.f6 gf6 (worse 27...Rf6 28.d5 Qd6 29.Qc2+=) 28.Rh5 Rd8+/-) 27...f6= 28.Rg1 b6 (28...Re8 29.d5 Nd8 30.e4=) 29.Rc2 Re8 (worse 29...Qf5 30.Qg7 Ke8 31.Rf2+-) 30.d5 Ne5 (30...Na5 31.e4 c6 32.dc6 Nc6 33.Qg3=) 31.Be5 (31.e4 c5+=) 31...fe5 32.e4 Re7 33.Rgc1 Attacks the backward pawn on c7 (33.Qg5 c6 34.dc6 Rc6+=) 33...c5 34.Qg5 Rh6 35.Rg2 a6 36.Rcg1 The pressure on g7 grows (36.Qe3 Qd6=) 36...Rf7 (36...Qd6 37.Rc1=) 37.f4 ef4 38.Qf4 ½-½. Dluhosch,Thomas – Rose, corr FRG-ch AK1121, 1984.

12.Bb5 Nh3 13.Kh1 Qf6=.

13.Bc6 bc6 14.Kg2 Qe4 15.Bc3! (15.h3 Re6!) 15...Bc3 16.Nc3 Qf5 17.e4 Qh5 18.h4 Re6 unclear. Auerswald.

13.Kg2+/- Bf3 14.Kf3 Qe4 15.Ke2 Qg4 16.Kd3 Qf5 17.Kc4 Qd5!? 18.Kd5 Na5 Threatening mate: c6 19.Be8 Re8 (19...Re8 20.Qc2 c6 21.Qc6 bc6) 0-1. Klaus,I - Frolik,Eckhard, corr, 1988.

13.Kg2 Bf3 14.Kf3 Qe4 15.Ke2 Qg4 16.f3 Qg2 17.Rf2 Re3 18.Ke3 Decoy to e3 18...Re8 19.Kd3 Qf2 20.Bc3 (20.Nd2 Re3 21.Kc4 Bd2 (21...Qd2?! 22.Qd2 Bd2 23.Bc6 bc6 24.Rd1-+) 22.Bc6 Be1-+) 20...Ne5! 21.Ke4 (21.de5 Rd8 A double attack) 21...Qh4 22.f4 Ng4 23.Be8 Nf2 24.Kf3 (24.Kd5 Nd1 25.Kc4 Nc3 26.Nc3 Bc3 27.Kc3 Qh3 28.Kc4 Qh2 29.Kd3-+) 24...Nd1 25.Bb4 Qf2 26.Ke4 Qe2 27.Kd5 If White now only could play Bd2... 27...Ne3 (27...Qe6 28.Kc5 Nb2 29.Bf7 Kf7 30.d5 Qb6) 28.Ke4 Nc2 (28...Nc2 29.Kd5 Nb4 30.Kc5 Na6 31.Kd5 Qe6) 0-1. Wolf - Pohlers,Juergen, corr DDR-Cup, 1984.

13.Kg2? Bf3 –+ 14.Qf3 Qg5 15.Qg3 Qb5 16.d5 Qd5 –+.

12.Bg4 Nc6 13.Bf3 Rad8 14.d4 Qg5 15.a3 Bd6 16.Nc3 Nc3 17.Bc3 Re6 18.Bc6 Bh2 19.Kh2 Qh4 20.Kg1 Rh6 21.f3 Qh2 22.Kf2 Qh4 23.Ke2 Rc6 24.Qd3 Qg3 25.Rf2 Re8 26.e4 Rd6 27.Rh1 Rg6 28.Rh3 Qd6 29.Bb2 Qb6 30.Kf1 h6 31.Rh5 a6 32.Qc4 c6 33.Rf5 Qc7 34.Bc1 Rge6 35.Bf4 Qd7 36.Kg1 Rd8 37.Be3 g6 38.Re5 Re5 39.de5 Qd1 40.Rf1 Qd3 41.Qd3 Rd3 42.Bc5 b6 43.Bb6 Ra3 44.Rc1 a5 45.Rc6 Ra1 46.Kh2 a4 47.Rc8 Kh7 48.Ra8 a3 49.Bd4 Rd1 50.Bc5 (50.Bc5 a2 51.Ra2+–; 50.e6 Rd4 51.ef7 Rd8 52.Rd8 h5 53.f8Q g5 54.Qe7 Kg6 55.Rd6#) 1–0. Scheller,Claus Dieter – Lomer,Edmund, Schleswig Holstein–ch M, 1994.

12.Bg4= Nc6 13.Bf5 =.

12.Bg4= Ne6 13.Qb3 (13.d3 Qh4=) ½–½. Visbeen,Andreas – Pimmingstorfer,Christian, Ruhrgebiet VK2, 1997.

12.Qb3 Nd4 13.Bd4 Be6 14.Bc4 c6 15.Nc3 Nc3 16.Bc3 Bc3 17.Qc3 Bc4 18.Qc4 Qe6 19.Rfc1 Rad8 20.d4 Qc4 21.Rc4 Re6 22.Rb1 b5 23.Rc5 Kf8 24.Rbc1 Rdd6 25.Kf1 Ke7 26.R1c3 Kd8 27.Ra3+/– Re7 28.Ra6 Rc7 29.Rb5! cb5 30.Rd6 Kc8 31.Ra6 Kb7 32.Ra3 Rc2 33.Rb3 Kc6 34.a3 a5 35.e4 a4 36.Rd3 Rb2 37.f4 Rb3 38.Ke2+/– Rb2 39.Kf3 Rb3 40.Ke3 Rb2 41.d5 Kd7 42.Kf3 Rb3 43.Rb3 ½–½. Boemelburg,Hans Juergen (1790) – Mildenberger,Frank (1760), Ruhrgebiet VK3, 2004.

12.Bf3 Nd4 13.Bd5 Nc6 14.Nc3 Rad8 15.d4 Na5 16.Rc1 c6 17.Bf3 Nc4 18.Ba1 Bf5 19.e4 (19.Qe2!? Be6 20.Rfd1=) 19...Bg6+= 20.Nb1? (20.Re1 f5+=) 20...Nd6 (20...Ne5!? 21.Nc3 Nf3 22.Qf3 Bc3 (22...Rd4?! 23.Nd5 Qg5 24.Bd4 Be4 25.Qg3 Qg3 26.Nf6 gf6 27.fg3=) 23.Bc3 Be4–/+) 21.a3 Ba5 22.Qa4 Bb6 23.Nd2 (23.Nc3!?–/+) 23...Qg5–+ 24.Nb3 (better is 24.Qc2!?–+) 24...Ne4 25.Nc5? (25.g3–+) 25...Nd2 (25...Nc5?! 26.dc5 Bc5 27.h4–+) 26.Qd1 Re7 27.h4 Qh6 (27...Qf4 28.Be2 Nf1 29.Bf1 Qh4 30.Qd2–+) 28.Re1 Re1 29.Qe1 Nf3 30.gf3 Qh4 31.Nb7 Bc7 32.Qe3 Bf4 33.Qc3 Qh2 34.Kf1 Re8 (34...Re8 35.Qe3 Be3 36.fe3 Bd3 37.Ke1 Qe2) 0–1. Battiston,C (1980) – Grant,J (2245), Arco Open A, Arco ITA, 2009.

12.Bf3 Nd4 13.Bd5 Nc6 14.Nc3 Nd8 (14...Qd6 15.a3 Bc3 16.dc3=; 14...Qg5 15.Qc2 Bd6 16.f4= 0.03) 15.Bf3 (15.a3 Bd6 16.Qh5= 0.03) 15...c6 16.d4 (16.d3= -0.03) 16...Bd6 17.Ne4 Bc7 18.Ng3 Bg3 19.hg3 Bf5 20.Rc1 Be4 21.Rc5 (21.Be4 Qe4 22.Qf3 Qe7=) 21...Ne6=+ 22.Rh5 Bf3 23.gf3 Rad8 24.Kg2 h6 25.f4 (25.Rfh1 Rd7=+) 25...Nc7 26.Rfh1 Qe4 27.Kg1 Rd5 28.Rd5 Nd5 (28...Nd5 29.Qc1 Qf3-/+) 0-1. Schmidt,Klaus Dieter - Strick,Erich, BdF, 2000.

12.Bf3 Nd4 13.Bd5 Nc6 14.Qh5 Rad8 15.d3 Bd6 16.Rd1=.

12.Bf3 Qd6 A) 13.Qb3 Nd4 (13...Nce7 14.Nc3 c6 15.Ne4 Qc7 16.d3+= 0.28) 14.Bd4 Bc6 15.a3 Ba5 16.Rc1= -0.09; B) 13.a3 Ba5 (13...Nd4 14.Bd4 Ba5 15.Nc3 Nc3 16.Bc3= 0.06) 14.Qc2 Bb6 15.Nc6 Bc6 16.Nc3= 0.00; C) 13.Nb5 Qc5 14.a4 a6 15.Bd5 ab5 16.Qf3= 0.25.

12.Nc6 bc6 13.Qe2 Qh4 14.Na3 Nf4 15.Qf3?? Nd3–/+ 16.g3 Qh6 17.Nc4 Nb2 18.Nb2=+ Bd2 19.Rad1 Ba5 20.Rd7 Qf6 21.Qf6+= gf6 22.Rc1 Re6 23.Nc4+/– Bb6 24.a4 Rc8 25.a5 Bc5+= 26.Rb1 Kf8 27.Rb7 Re7 28.Re7+/– Ke7 29.Nd2 Bd6 30.Ra7+– Bb4 31.Nc4 Ke6 32.e4 Kd7?? 33.Nb6+– Kd8 34.Nc8 Kc8 35.a6 (35.a6 Bc5 36.Ra8 Kd7 37.Kf1+–) 1–0. Schlegel,Wolfram – Lacoste,Alain, corr ICCF EU/I/GT/188, 1983.

12.Nc6 Qd6 13.Qe2 bc6 14.a3 Nf4 15.Qg4 Nh3 16.gh3 +–.

12.Nc6 Qd6 13.Qe2 Qc6 =+.

12.Nc6 Qh4 13.Qe2 bc6 14.Qf3 Rab8 15.Ba3 Re6 16.Bb4 Qb4 17.Qd1 Qb2 18.Nc3 Nc3 19.dc3 Qc3 20.Rb1 Rbe8 21.Qd7 g6 22.Rbc1 Qa3 23.Rc6 Qa2 24.Re6 Re6 25.Qc8 Kg7 26.Qc7 a5 27.Qc3 Rf6 28.Ra1 Qf2–/+ 29.Kh1 Kh6 30.h3 Rf5 31.Ra5 Ra5–/+ 32.Qa5 Qe3 33.Qd8 (33.Qc7 f5–/+) ½–½. Antoniadis,Nikolaos – Galanos,Dimitrios, Ambelokipi op, 1999.

12.Qe2 Nd4 13.Bd4 c5 14.Bb2 Rad8 15.a3 Ba5 16.Rd1 Qe4 17.Rc1 Qe7 (17...b6 18.d3 Qg6 19.Qc2=+) 18.g3 (18.Rd1 Bc7=+) 18...a6 (18...b6 19.Qf3=+) 19.Nc3 (19.Qc4 Bb6=+) 19...Nf6 20.Rc2 b5 21.Rd1 c4 22.d3 cd3 (22...Bc3 23.Rc3 Qd7 24.d4-/+) 23.Rd3=+ Rd3 24.Qd3 Rd8 25.Qe2 Qd7 26.Kg2 h6 27.f3 Qd3 (27...Bb6 28.e4=+) 28.Qd3= Rd3 29.e4 b4 ½-½. Borucki,Bogumil - Noskowicz,Krzysztof, corr 1AMM Poland, 1991.

12.Qe2 Nd4 13.Bd4 c5 14.Bb2 Rad8 15.d4 cd4 16.Bd4 Nf4 17.Qg4 Rd4 18.ed4 Qe4 19.Qf3 Ne2 20.Kh1 Qd4 21.Qb7 Bf8 22.Qb5 Re5 23.Qb3 Qa1 24.Nd2 Qc3 0–1. hal1958 – SVFinito, playchess.de, 2002.

12.Qe2 Nd4 13.Bd4 Rad8 (13...c5 14.Bb2=+) 14.Qg4 The mate threat is Qxg7 14...f6 15.Nc3 Bc3 16.Bc3 (worse 16.dc3 c5 17.e4 cd4 18.ed5 dc3-/+) 16...c6 (16...Qd7 17.Qf3=+) 17.Bb2 (17.Rfc1 Qe6 18.Qa4 b6=) 17...Nb6 (17...c5 18.d3=+) 18.d4 Rd5 (18...Nc4 19.Rfb1=+) 19.Qe2 (19.Rfc1 f5 20.Qg3 Qf6=) 19...Qe4 20.a4 Rg5 Threatening mate... how? 21.g3 (21.f3 Qh4= (worse 21...Qe3 22.Qe3 Re3 23.Bc1+=)) 21...Nd5=+ 22.f4 (better 22.Rfb1!?=+) 22...Rg6-/+ 23.Qf3 Qe3 24.Qe3 Ne3 25.Rfe1 f5 26.Re2 (26.Bc1!? Rge6 27.Be3 Re3 28.Re3 Re3 29.a5-/+) 26...Rge6-+ 27.Rae1 (27.Rb1 b6-+) 27...Kf7 (27...Re4 28.h3-+) 28.Bc1 (28.Rb1 b5-+) 28...Nd5 (28...Nc4 29.Kf2-+) 29.Re6 (29.Re5 g6 30.Bd2 Kf6-+) 29...Re6 30.Re5 (30.Re6 Ke6 31.a5 Nb4-+) 30...g6 (30...Re5 31.de5 b5 32.Kf2-+) 31.Kf2 Nb4 32.Ke3 (32.Ke2 b6-/+) 32...Rd6 33.Bb2 (33.Rc5 b6 34.Rc4 Re6 35.Kd2 Nd5-+) 33...Nd5 (33...b6 34.Kd2-+) 34.Kd3 Nf6 (34...b5 35.ab5 cb5 36.Bc3-+) 35.Ba3 Re6 36.Kc4 (36.Bb4!? Ng4 37.Ra5 a6-/+ (37...Nh2 38.Ra7 Ng4 39.Rb7 Kf6 40.a5+-)) 36...Ng4 37.Re6 (37.Ra5 a6-+) 37...Ke6 38.h3 Nf2 39.Bc1 h5 (39...b6 40.Be3 Nh3 41.d5 cd5 42.Kb5-+) 40.Be3 (40.Bd2 Nh3 41.Be3 b6-+) 40...Ne4 (40...Nh3?! 41.Kc5-/+) 41.g4 (41.Bg1 Ng3 42.Bf2 Ne4-+) 41...fg4 42.hg4 hg4 43.Kd3 Kf5 44.Ke2 (44.d5 cd5 45.Ba7 Kf4-+) 44...a6 (44...Nc3!? 45.Kd2 Na4 46.d5 cd5 47.Ba7 Kf4 48.Kd3-+) 45.a5 Nc3 46.Kd3 (46.Kf1 Ke4 47.Bd2 Kd4-+) 46...Nd5 47.Bg1 (47.Bf2 Kf4 48.Ke2 Nc3 49.Kd3 Kf3-+) 47...Nf4 (47...g3 48.Ke2 Ke4 49.Ke1-+) 48.Kc4 (48.Ke3 g3 49.Kf3 g5-+) 48...Ne2 (48...g3!? 49.d5 cd5 50.Kb4-+) 49.Bf2 g3 50.Bg3 Ng3 51.Kc5 (51.d5 cd5 52.Kd5 Ne2-+) 51...Ke4 (better 51...Ne4 52.Kc4-+) 52.Kb6 Kd4 53.Kb7 c5 (better 53...Ne4 54.Ka6 Nc5 55.Kb6-+) 54.Ka6 c4 55.Kb6 c3 (better 55...Ne4 56.a6 Nd6 57.Ka5-+) 56.a6 c2 57.a7 c1Q 58.a8Q Qc5 (58...Qc5 59.Kb7 Qd5 60.Ka7 Qa8 61.Ka8 g5 62.Kb8 g4 63.Ka8 Ne4 64.Ka7 g3 65.Kb7 Nc5 66.Kc7 g2 67.Kb6 g1Q 68.Kb5 Qg6 69.Ka5 Qa6 70.Kb4 Qa4) 0-1. Fernandez Gilbert,Mario - Diaz Moron,Agusti (1970), Barcelona ESP Catalunya Open, 2005.

12.Qe2 Ne5 13.Nf3 Ng4 14.Qc4 Ngf6 15.d3 Rad8 16.a4 Rd6 17.Qh4 Rc6 18.Nd4 Rb6 19.Nf5 Qe6 20.e4 Ne7 21.Ne3 Ng6=+ 22.Qg5 Be7 23.Nc4 Rb3 24.Qe3=+ Rd8 25.Nc3 Ne5 26.Ne5 Qe5 27.Nd1? Qh5 28.Qa7 Bc5 (28...Bc5 29.Qc5 Qc5–+) 0–1. Larisch,R – Soto,Oliver, ISLA GC, 1989.

12.Ne2 Nb6 13.Bc3 Bd6 14.Nd4 Nd4–/+ 15.Bd4 Qh4 16.h3 c5 17.Bc3 Rad8 18.Qg4 Qg4–/+ 19.hg4 Be5 20.Rd1 c4 21.Be5 Re5 22.Nc3 Kf8 23.f4 Ra5 24.g5 Nd5 25.Ne2 Ra3 26.Nd4 a6 27.Rdc1 c3 28.dc3–/+ Nc3 29.Rc2 Nd5 30.Nf5 g6 31.Nh6 Re3 32.f5 gf5 33.Nf5 Re5 34.Rf2 Nc3 35.Raf1 Ne4–+ 36.Rc2 Ng5 37.Rc7 Rd2 38.Rb7 Ra2 39.Ra7 Ree2 40.Ra8 Re8 41.Re8 Ke8 42.Nd6 Ke7 43.Nf5 Kf8 44.Rc1 Ke8 45.Rc8 Kd7 46.Rg8 f6 47.Ne3 a5 48.Nd5 Ke6 49.Nb6 Ne4 50.Rh8 Ra1 51.Kh2 a4 52.Re8 Kf5 53.g4 Kf4 54.Nd5 Kf3 55.Re5 fe5 (55...fe5 56.Ne3 Ke3 57.g5 a3 58.Kg2 a2 59.g6 Rg1 60.Kg1 a1Q 61.Kh2 Qe1 62.gh7 Qf2 63.Kh3 Qg3#) 0–1. Gugulski,Marcin – Buczinski,Henryk, corr 2. AMM, Poland, 1994.

12.Ne2 Red8 13.Nbc3 Nc3 14.Nc3 Rd3 15.Qc2 Rad8 16.Bc1 Qc5 17.Rb1 b6 18.Qa4 Bc3 19.dc3 Rc3 20.Qf4 Qd6 21.Qa4 Qd3 22.Bb2 0–1. Kwiek,Janusz – Borucki,Bogumil, corr 1. AMM Poland, 1992.

12.Ne2 Ne5 13.Qb3 Qd6 14.Nbc3 Nc3 15.Bc3 Bc3 16.Qc3 Qd3 17.Qd3 Nd3 18.Nc3 c6 19.Rab1 b6 20.a3 Rad8 21.Ne2 c5 22.Rfd1 g6 23.Nc3 c4 24.Nb5 Rd7 25.a4 f5 26.Nd4 Kf7 27.f4 Nf4! 28.Nf5 gf5 29.ef4 Re4 30.g3 h5 31.Kf2 h4 32.Kf3 Rd3 33.Kf2 Kg6 34.Rbc1 Red4 35.Ke2 hg3 36.Rc4 gh2 37.Rd4 Rd4 38.Ke3 Ra4 39.Rh1 Ra3 40.Ke2 Rh3 (41.Kf2 Kh5–+) 0–1. hal1958 – Hovsep, HCL–A1254 playchess.de, 2003.

12.Ne2 Ne5 13.Qb3 Rad8 (13...c6 14.Be5 Qe5 15.d4=) 14.Be5 (14.a3 Ba5 15.Be5 Qe5 16.d4=) 14...Qe5= 15.d4 Qe7 16.a4 c6 17.Na3 (17.Nbc3 Nc3 18.Nc3 Bd6=) 17...Qh4 18.Nc2 White gets strong initiative 18...Bd6 Threatening mate... how? 19.Ng3 Re6 (19...Rd7 20.f4=+) 20.Ne1 (20.Qb7 Nc3 21.Rae1 Bg3 22.fg3 Qe7 23.Qe7 Re7+=) 20...Rf6 (better 20...Bg3 21.hg3 Qh5-/+) 21.Nf3+/- Rf3 22.gf3 Re8? (22...Rd7 23.a5+/-) 23.Kg2?? (23.Qb7 Rd8 24.Qc6 Qf6+-) 23...Re6? (23...Re7 24.a5+/-) 24.Rh1?? (24.Qb7 Rh6 25.Rh1 Qh3 26.Kg1 Nc3+-) 24...Rh6?? (24...Bb4 25.a5 Rh6 26.Ra4 Qh3 27.Kg1+/-) 25.h3?? (better 25.Qb7 Qh3 26.Kg1+-) 25...Re6+/- 26.Rag1?? (better 26.Rae1 Qe7 27.Reg1+/-) 26...Ne3!-+ 27.fe3 Theme: Deflection from g3 (27.Qe3 Re3) 27...Qg3 28.Kf1 Qf3 29.Ke1 Re3 30.Qe3 Qe3 31.Kd1 Qd3 (31...Qd3 32.Ke1 Bg3 33.Rg3 Qg3 34.Kf1 b5-+) 0-1. Luneau,Gilles - Moulain,Jean, Toulouse, 1990.

12.Ne2 Rfe8 13.Ng3 Qe6 14.Qf3 Ne5 15.Be5 Qe5 16.d4 Qd6 (16...Qf6 17.Qf6 Nf6 18.a3 Bd6 19.Nf5 c5 20.Nc3 cd4 21.ed4=) 17.a3 Ba5 18.Ra2 g6 (18...c6 19.Rb2 b6 20.Rc1 Qe6 21.e4=) 19.Rb2 f5 (19...Bb6 20.Rb3 c6 21.Ne4+=) 20.Ne2 (20.Rb7 f4 21.ef4+=) 20...Qa6 (20...Bb6 21.Rc1=) 21.Rc1 (21.Rd1+=) 21...Re6 22.Nf4 Rc6 23.Rd1 Nf4 24.Qf4 Bb6 25.h4 Qa4 26.Rf1 h5 27.Qf3 Kg7 28.g3 Rd7 ½–½. Wantoch_Rekowski,Jacek (2170) – Schulz,Rene (2220), Alpert Memorial Cup, Preliminary group, 2010.

13.Ne7 Re7 14.Rd1=+ Rd8 15.Na3 Red7 16.d4 Nc3 17.Rd3 Na4 18.Rb3 a5=+ 19.g3? Nb2–+ 20.Rb2 Ba3 21.Rb7 c5 22.Rb3 Bb4 23.Rc1?! cd4 24.a3 Bf8 (24...Bf8 25.ed4 Rd4–+; 24...de3 25.fe3 Bf8 26.a4–+) 0–1. Guse,Frank – Siebarth,Raiko, Bad Wildbad, 2002.

13.Ne7 Re7 14.Rd1 Rd8 15.d4 f5 16.g3 Re6 (16...g5 17.Ba3+=) 17.Nd2 (17.Rc1 g5+=) 17...Rc6 18.a3 Rc2 19.ab4 Rb2 20.Rab1 Rb4 21.Rb4 Nb4 22.Rb1 a5 23.Rc1 (23.Nc4 b6–/+) 23...Nd5–+ 24.Kf1 a4 25.Ke2 b5 26.Rc5 b4 (better is 26...a3!?–+) 27.Kd3+= b3 28.Kc4 (28.Ra5 Nb6 29.Rf5 Rf8+=) 28...Nb6 29.Kc3 (29.Kb4 g6+=) 29...Ra8 (29...g6!?+=) 30.Rf5= c6 31.e4 Rd8 (31...Rf8!?=) 32.Ra5 Rb8 33.Kb2 Rd8 34.Kc3 Rb8 35.f4 (35.Ra7 Kf8+/–) 35...b2 (35...Rb7 36.Rc5 b2 37.Nb1+= (37.Rc6?? a3 38.Kc2 Nc4 39.Rc4 a2 40.Rc8 Kf7 41.Rc7 Rc7 42.Kb2 Rc2 43.Kc2 a1Q–+)) 36.Nb1+/– (36.Kb2?? Nc4 37.Ka2 Na5–+) 36...Kf7 (36...Rb7 37.Ra6+/–) 37.Ra6 (37.Ra7 Kf8 38.Rc7+/–) 37...Ke6? (better is 37...Nd7+/–) 38.Kb2+– Kd6 (38...Nd5 39.Kc1 Nb4 40.f5 Kf6 41.Ra4+–) 39.Kc2 Nc4 40.d5 (40.Nc3 a3+–) 40...Ne3 (40...Rb6 41.Rb6 Nb6 42.dc6 Kc6 43.Nc3+/–) 41.Kc1+– Rb4? (better is 41...Rc8+–) 42.Rc6 Kd7 (42...Ke7 43.Nc3 a3 44.Ra6+–) 43.Nd2 (43.Nc3 a3 44.Ra6 Rb2 45.Ra3 Rh2+–) 43...a3 (43...g6 44.Nf3 Nc4 45.Kc2 Na3 46.Kd3 Rb3 47.Ke2+–) 44.Ra6 Nc4 45.Nc4 (45.e5 Nd2 46.Kd2 Rd4 47.Ke3 Rd5 48.Ra3 Ke7+–) 45...Rc4 46.Kd2 Re4 47.Ra3 Rd4 (47...Kd6 48.Ra7 Rd4 49.Ke3 Rd5 50.Rg7+–) 48.Ke3 Rb4 (48...Rd5 49.Rd3 Rd3 50.Kd3+–) 49.Ra6 (better is 49.Ra7 Kd6 50.Rg7 Kd5 51.Rh7 Ke6+–) 49...Rb2?! (49...Ke7 50.Ra7 Kf6 51.d6 Rb3 52.Ke4+–) 50.h4 (50.Ra7!? Kd6 51.h4 Rb3 52.Kf2 Rb2 53.Kf3 Rb3 54.Kg2 g6 55.Rh7 Kd5+–) 50...Rb3 51.Kf2 Ke7 (51...Rb7 52.Kf3 Rb3 53.Kg4+–) 52.d6 Kf6 (52...Kf7 53.Ra7 Kf6 54.g4+–) 53.d7 Ke7 54.Rd6! Kd8 (54...Kd6 55.d8Q Combination) 55.Kg2 (55.g4!? Rb4 56.Ke3 Rb3 57.Ke4 Rb7+–) 55...Rc3 (55...Rb5 56.Kf3+–) 56.g4 Rc7 (56...Re3 57.f5+–) 57.Kf3 Rd7 (57...Rb7 58.h5 Rc7+–) 58.Rd7 Kd7 59.f5 h6 (59...Ke7 60.g5 Kd6+–) 60.Ke4 Ke7 61.Ke5 Kf7 62.g5 hg5 63.hg5 g6 64.f6 Kf8 65.Kd6 (65.Ke4!? Ke8+–) 65...Kf7 66.Kc7 Kf8 ½–½. Pfueller,Volker (1605) – Wolf,Manfred (1940), 7th Berlin–ch Seniors, 2011.

14.Rd1 Nb4 15.Nc3 Nd3 16.Rab1 Rad8 17.Ba1 b6 18.Nb5 Rd7 19.Na7 Ra8 20.Nc6 Ra2 21.Ne7 Re7 22.Bd4 f6 23.Kf1 c5 24.Bc3 Ra6 25.Rb5 Re6 26.Rdb1 Kf7 27.g3 Rd6 28.f4 Ke6 29.Ke2 Kd7 30.e4 c4 31.e5 fe5 32.fe5 Rc6 33.Bd4 Kc7 34.Kf3 Re6 35.Ke4 Rc6 36.Rf1 Kb7 37.Kd5 Rc7 38.e6 Ra5 39.Rfb1 (39…Rb5 40.Rb5+–) 1–0. Giorgetti,Fosco (1875) – Signorile,Giuseppe (1825), Italia Scacchistica B, 1999.

14.Rd1 c5 15.Na3 a6 16.d4 cd4 (16...Rac8 17.e4 Nf4 18.d5=) 17.Rd4 Bf6 18.Rd2 Bb2 19.Rb2 b5 20.Nc2 Nb6 21.Rd1 (21.Nd4 Nc4 22.Rb4 Rad8=+) 21...Na4 (21...Nc4 22.Rb3=+) 22.Rb3= Rec8 (22...Nc5 23.Rc3 Ne6 24.Rd7+=) 23.Rd2 Nc3 24.a3 (24.Nb4 Ne4 25.Rd1 a5=) 24...Ne4=+ 25.Re2 Rc4 26.f3 Rac8 27.Rd3 g6 (27...Kf8 28.Ne1 Nc5 29.Rd5-/+) 28.Ne1=+ Ng5 (28...Nc5 29.Rd6=+) 29.Red2= Ne6 30.Kf2 Kf8 31.Ke2 Ke8 32.Rd7 (32.Rd6 Nc5=) 32...Ra4 33.R7d3 Rac4 (33...Nc5 34.Rc3 Rc4 35.Rcc2=+) 34.Rd7 (34.Rd6 Nc5=) ½-½. Kwiek,Janusz - Noskowicz,Krzysztof, corr 1AMM Poland, 1992.

13.Qb3 Na5 14.Qc2 b5 (14...Bd6 15.Qf5=+) 15.a4 ba4 16.Ra4 Nb6 17.Ra2 Qe6 18.Ba1 c5 19.d4 Nc6 20.Nf4 Qd6 21.dc5 Bc5 22.Nd3 Qd3 23.Qc5 Qg6 24.Rd2 Rd2 25.Nd2 Rd8 26.Nf3 Rd5 27.Qc3 Na4 28.Qb3 Nb6 29.Rc1 ½-½. Dopper,Johan - Embden,Alexvd, Vrij, 1994.

13.d4 a6 14.Nbc3 Nf6 15.Qc2 Bd6 16.Qf5 Nb4 17.Rab1 c6 18.Ba3 b5 19.Ng3 Nbd5 20.Bd6 Qd6 21.Rfc1 Re6 22.Nce4 Ne4 23.Ne4 Qe7 24.Nc5 Rf6 25.Qe5 Qa7 26.g3 Nc7 27.Qe4 Ne6 28.f4 Rd5?? 29.Ne6+– fe6 30.Rc6 Kf7 31.Re6!! (31.Re6 Re6 32.Qd5+–) 1–0. Zschalich,Arndt – Antoszkiewicz,Gerhard, corr DDR–ch M, 1987.

13.d4 Bd6 14.Ng3 Bg3 (14...Ne3 15.fe3 Qe3 (15...Bg3 16.hg3 Qe3 17.Rf2 Nd4 18.Bd4 Qd4-/+ -0.84) 16.Rf2 Bg3 17.hg3 Nd4 18.Bd4 Qd4-/+ -0.84) 15.hg3 Ne3 (15...Qe6 16.Qb3 Na5 17.Qa4 b6 18.Nd2 Qh6=+ -0.56; 15...Qg5 16.Qf3 Nf6 17.Rc1 a6 18.Nc3 Ng4=+ -0.59) 16.fe3 Qe3 17.Rf2 Nd4 18.Nc3 (18.Bd4 Qd4 19.Nd2 b5-/+) 18...Qg3 (18...b5 19.Qg4 f5 20.Qf4-+) 19.Qh5 g6 (19...f6 20.Qc5-/+) 20.Qh6 (20.Qc5 Re5 21.Qc4 Rd7=+) 20...Nf5 (20...Re5 21.Raf1 Rh5 22.Qf4 Qf4 23.Rf4-/+) 21.Qc1 Qd3 (21...c5 22.Qc2 Qe3 23.Rc1-/+) 22.Qf4 Rd4 (22...c6!?=+) 23.Qc7= Rh4? (23...Rd7 24.Qa5 b6 25.Qa4=) 24.Ne2 (better 24.Rd1!? Qc4 25.Re2 (25.Qb7? Ng3 26.Qf7 Qf7 27.Rf7 Kf7-+) 25...Re2 26.Qd8 Kg7 27.Ne2 Kh6 28.Nd4+-) 24...Qe3 (24...Rhe4 25.Qc3 Qc3 26.Nc3 (26.Bc3? Re2 27.Rd1 Ng3-+) 26...Re1 27.Re1 Re1 28.Rf1 Rf1 29.Kf1 Ne3 30.Kf2+=) 25.Raf1+= Qh6? (better 25...Rb4 26.Bc1 Qe5 27.Qe5 Re5+=) 26.Ng3+- Rf8? (better 26...Qe3 27.Nf5 gf5 28.Qb7 Qh6+-) 27.Rf5?? (better 27.Qe5 Qg7 28.Rf5 Qe5 29.Re5+- (29.Be5?! gf5 30.Nf5 Re8+-)) 27...gf5+/- 28.Qe5 (28.Nf5?? Rh1 29.Kf2 Qd2 30.Kg3 Qg5 31.Kf2 Qf5 32.Kg3 Rf1-+) 28...f6? (28...Qb6 29.Rf2 f6 30.Qf5 Qe3 31.Bf6 Qe1 32.Nf1 Rh6 33.Qd5 Rf7+-) 29.Qe6+- Kh8 (29...Rf7 A) 30.Nf5 Rh1 31.Kf2 Qf4 32.Ke2 Qf1 (32...Rf1?! 33.Qe8 Rf8 34.Qe6 Rf7 35.Qe8 Rf8 36.Qe6 Rf7=) 33.Kd2 Qg2 34.Kd3 Rh3 35.Ne3 Re3 36.Qe3 Qd5 37.Qd4 Qb5 38.Kc2 Rc7 39.Bc3 Qc6-+; B) 30.Rf5?! Qf8+-; C) 30.Rc1 Rh1 31.Nh1+-) 30.Rf5 (30.Qf5?! Qe3 31.Rf2 Rh6+= (31...Qg3?? 32.Bf6 Kg8 33.Qd5 Rf7 34.Bh4+-); 30.Nf5 Rh1 31.Kf2 Qf4 32.Ke2 Qf1 (32...Rf1?? 33.Bf6 Rf6 34.Qf6 Kg8 35.Qg7) 33.Kd2 Rd8 34.Kc3 Qd3 35.Kb4 Qd2 36.Ka4 b5 37.Kb5 Rb8 38.Kc5 Qb2-+) 30...Rf4 31.Rf4 (better 31.Qd6 Rf5 32.Nf5+-) 31...Qf4 32.Nh5 (32.Nh5 Qg5 33.Bf6 Rf6 34.Nf6+-) 1-0. Labahn,Wolfgang – Adam, Goettingen, 1988.

13.d4 Qg5 14.Nbc3= Nc3 15.Bc3 a5 16.Bb4+/= Nb4 17.Qb3 b6 18.Rfc1 Nd5 19.Rc6 a4 20.Qb5 1–0. Buczinski,Henryk (2200) – Deforel,J (2320), corr 3GMM/34, 1997.

13.d4 Qh4 14.Nd2 Bd2 15.Qd2 Ne5?? (better 15...a6=+) 16.de5+- Nf4 (16...Re6 17.Nd4 Rh6 18.Nf3+-) 17.Nd4 Ng2 18.f4 (18.f4 c5 19.Qg2 cd4 20.ed4+-) 1-0. Dopper,Johan – Smit, corr, 1992.

13.d4 h6 14.Nbc3 Ne3 15.fe3 Qe3 16.Kh1 Nd4 17.Nd4 Bc3 18.Bc3 Qc3 19.Nb5 Qc6 20.Qb3 Re2 21.Rg1 Rdd2 22.Qg3?? Qb5–+ 23.Qc7 Qd5 24.Qc8 Kh7 25.Qg4 Qe4 26.Qg3 Ra2 27.Raf1 Qg6 28.Qf3 b5 29.h4 b4 30.h5 Qe4 (30...Qe4 31.Qh3 Kg8–+) 0–1. Melich,Jindrich (2140) – Hrbolka,Ladislav Jr (2075), Decin op–A, 1998.

13.Ng3 Qe6 14.d4 Ne3 (14...f5 15.Qf3 f4 16.ef4=+ Qf6 17.Ne2 Qf5=+ -0.59) 15.fe3 Qe3 16.Kh1 Nd4 17.Qg4 (17.Qh5 f6=+ -0.44) 17...Re6 (17...Qe6 18.Qf4 Nc2 19.Nf5-/+) 18.Nf5 Nf5 19.Qf5 (19.Qb4 Rh6 20.Qg4 Ng3 21.Qg3 Qg3 22.Kg1 Rh2 23.Rf2 Rd1 24.Rf1 Qg2) 19...Rd7 (19...f6 20.Bc3 Bd6 21.Nd2=) 20.Qg4 (20.Bg7 Qc5 21.Qc5 Bc5+=) 20...Bf8= 21.Na3 (better 21.Nc3=) ½-½. Windelboe – Buch, Arhus, 1984.

13.Kh1!? Auerswald.

14.Qb7 Qh4 15.f4 Ndb4 =.

14.Nbc3 Ndb4!? =+.

14.Nbc3 Nf6 15.Qb7= Bh2 16.Kh2 Ng4? 17.Kg1?? Qh4= 18.Qc7 Nce5 19.Rfd1 Qf2 20.Kh1 Rc8 21.Qb7 Rc6 (22.Qc6 Qh4 (22...Nc6 23.Nf4 Qg3 24.Kg1 Re3 25.de3 Qe3 26.Kh1 Nf2 27.Kh2 Nd1 28.Ncd5–+) 23.Kg1 Qh2 (< 23...Nc6 24.Nf4–+) 24.Kf1 Nc6–+) 0–1. Dopper,Johan – Klinkers,R, corr NED Hkl, 1995.

14.Nbc3 Nf6 15.Ng3 b6 (15...Bg3 16.hg3 Rd2 17.Qb7-/+) 16.Nd5 (16.Nf5 Qe5 17.Nd6 cd6= (17...Rd6? 18.Nb5 Qe7 19.Nd6 Qd6 20.Bf6 Qf6 21.Rfc1+-; worse 17...Qd6 18.Nb5 Qd7 19.Bf6 gf6 20.d4+=)) 16...Nd5=+ 17.Qd5 Bg3 18.Qc6 Rd2 19.Bc3 Rd6 20.Qa4 Bh4 21.Qa7 Red8 22.g3 Bg5 23.Bb4 (23.Rfc1 Rd3 24.a3 Re3-/+) 23...c5-/+ 24.Qe7 Be7 25.Bc3 b5 26.a3 1-0. hal1958 – AlBundy, playchess.de, 2003.

14.Bc3 Bc3 15.Nc3 Rd3 16.Qc2 Red8 17.Rfd1 Qd7 18.Ne4 Qd5 19.Nc5 Rd2 20.Rd2 Qd2 21.Qd2 Rd2 22.Nb7 Nb4 23.a3 Nc2 24.Rc1 Na3 25.Kf1 Rc2 26.Rd1 g6 27.Na5 c5 28.Nc6 Nb5 29.Ra1 c4 30.Rb1 Nd6 31.Nd4 Ra2 32.Rc1 Ne4 33.f3 Nd6 34.e4 a5 35.h4 f6 36.g4 a4 37.Ne2 a3 38.Nc3 Rh2 39.Kg1 Rd2 40.f4 Rd4 41.e5? fe5 42.fe5 Rg4 43.Kf2 Ne4 44.Ne4 Re4 45.Ra1 Re5 46.Ra3 Rc5 47.Rc3 Kg7 48.Ke3 Kh6 49.Kd4 Rc8 50.Ke5 Kh5 51.Kf6 Kh4 52.Kg7 g5 53.Kh7 g4 (54.Kg7 g3–+) 0–1. hal1958 – baggur, HCL–E957 playchess.de, 2003.

15.a3 Ba5 16.Qc2 Red8 Exerts pressure on the backward pawn 17.Rfd1 a6 (17...Qd6 18.Qb3-/+) 18.Rab1=+ Qc5 19.Rbc1 (19.f3 b5=+) 19...Qd6 Increases the pressure on the backward pawn 20.Ne4 Qg6 21.f3 Kh8 (21...Qh6 22.Kh1=+) 22.Bc3 Bb6 (22...Bc3 23.dc3 Ne5 24.Rd3 Rd3 25.Rd1 Rd1 26.Qd1=) 23.Kh1 (23.Re1 f5 24.Nf2 R3d6=) 23...Qe6 (23...f5 24.Nf2 R3d5 25.Nh3=) 24.Re1 (24.Bd4 R8d4 (24...Ra3? 25.Ng5 Qg6 26.Qg6 fg6 27.Rc6+-) 25.Nc5 Bc5 26.ed4 A) 26...Ra3 27.Qc5 (27.dc5?! Nd4 28.Qb2 Nb5+/-) 27...Qd6 28.d5 Qc5 29.Rc5+-; B) worse 26...Rd4 27.Qc5 Kg8 28.Re1+=; C) 26...Ba3=) 24...Kg8 25.Nf2 R3d7 (25...R3d5 26.d4=) 26.d4 Qe7 27.Qb2 Rd5 28.Nd3 Rb5 29.Qa2 Rh5 (29...Qh4 30.Qc2=) 30.Nf4 Rh6 31.g3 (31.d5 Be3 32.Bg7 Kg7 33.Qb2 Kg8 34.dc6 Bc1 35.Qc1 Rc6-+) 31...Qg5 32.Qg2 Ne7 33.e4 Ba5 (33...Bd4 34.Bd2 Qf6 35.Nd5 Nd5 36.Bh6 Qh6 37.ed5+=) 34.Ba5 Qa5 35.Red1 c6 (35...Ng6 36.Ng6 Rg6 37.Qb2=) 36.Qb2 Ng6 37.Ne2 (37.Ng6 hg6 38.Kg2 Rd7+=) 37...Qh5 The mate threat is Qxh2 38.Ng1 Nf8 39.Rc2 (39.h3 Rd7=) 39...Qb5 (39...b5!?=) 40.Qb5+= ab5 (worse 40...cb5 41.d5+/-) 41.Kg2 Rhd6 42.Ne2 Ne6 Now all is on d4 (42...Nd7 43.Rd3+=) 43.Rcd2 h6 (43...Nc7 44.Nc3+=) 44.Kf2 (44.d5 Nc7 45.Nc3 cd5 46.Nd5 Kf8+/-) 44...Nc5 (44...Nc7 45.Ke3=) 45.h4 Nb3 46.Rd3 Na5 47.Rc3 (47.e5 R6d7 48.Rc3 Nc4=) 47...Nc4 48.h5 (48.Rb1 Ra8=) 48...Ra8 The isolani on a3 becomes a target 49.Ra1 Rdd8 (49...b6 50.g4=) 50.Rb3 Ra4 51.d5 Rda8 Increasing the pressure on the isolated pawn on a3 (51...cd5 52.Rd1=) 52.Rc3 (52.Nc3 Ra3 53.Raa3 Na3=) 52...Ne5 (52...c5=) 53.dc6 (better 53.Rd1!?=) 53...bc6-/+ 54.Nc1 b4 (54...R8a6 55.Rc5 f6 56.f4-/+) 55.Rc5 R8a5 (55...Re8!?-/+) 56.Ra5=+ Ra5 57.a4 Ra6 (57...Nc4 58.g4=) 58.Nb3 Nd7 59.a5 c5 60.Rc1 (60.Nd2 Nf6=) 60...Ne5=+ 61.Nc5 Ra5 62.Nb3 Ra3 63.Rb1 Nd3 64.Kg2 Ra2 65.Kh3 Rc2 (65...Kh7 66.Kg4=+) ½-½. Fischbach,Rainer - Koch,Hans Georg, corr GER-ch qgB31, 1993.

15.Qc2 Red8 16.Bc1 (16.Rfd1 Qd7-/+) 16...Qc5 (16...Qf6 17.e4-/+) 17.Rb1 Bc3 18.dc3 Rc3 19.Qe4 Rc4 20.Qf3 b6 21.Bb2 Qe7 (21...Qd5 22.Qg3 g6 23.Qc7=) 22.Rfd1=+ Rc2 23.Rd5 (23.Rd8 Qd8 24.Qg3 Rb2-+) 23...Rd5-/+ 24.Qd5 Qd8 (24...Qb4 25.Qf5 Qd2 26.e4=+) 25.Qd8 (25.Qe4 Rb2 26.Rc1 Rd2-+) 25...Nd8-/+ 26.Be5 (26.Rd1 Ne6 27.Rb1 c5-/+) 26...f6 27.Bg3 c5 28.Ra1 b5 29.Kf1 Nc6 30.Ke1 Nb4 31.a4 Rb2 32.Kd1 c4 (32...Nc2 33.Rc1 Na3 34.ab5=+) 33.Ra3? (better 33.ab5 Nd3 34.Ra7 Rb5 35.Kd2=) 33...a6-+ 34.ab5 ab5 35.Kc1 Ra2 36.Ra2 Na2 37.Kb2 Nb4 38.Kc3 Nc6 (38...Nd3 39.e4-+) 39.e4-/+ Kf7 40.f4 f5 41.e5 Ke6 42.Bh4 Kd5 43.Bf2 (43.Kd2 b4-+) 43...b4 44.Kd2 b3 (44...g5 45.g3-+) 45.Kc3 Nb4?? (45...g5 46.e6-+) 46.Be3?? (46.Kb4 b2 47.Kc3-+) 46...Nd3-+ 47.g3 b2 (47...b2 48.Kc2 c3-+) 0-1. Kwiek,Janusz - Bak,Wiktor, corr 1AMM Poland, 1992.

15.Qc2 Red8 16.Rad1 Qd7 17.Nb1 Qd6 (17...Bd2?! 18.Nd2 Rd2 19.Qc3=) 18.Bc1 (18.a3 Ba5-/+) 18...Ne5 19.f4 Ng4 20.Rde1 Nf6 21.a3 Ba5 22.Re2 Ne4 23.Rd1 c5 (23...Qe6 24.Bb2-+) 24.Qa4-/+ Qb6 25.Qc2?? (better 25.Qe4 Qb1 26.Qa4-/+) 25…Qb3-+ (25...Qb3 26.Qb3 Rb3-+) 0-1. Puls,Georg - Murach,K, corr DDR-ch M641, 1980.

14.Ng3 Ne3!? Dopper.

14.Ng3 Rg6 (14...Rd7!?=+) 15.a3= Ba5 16.Nd2 (16.e4 Nf4=) 16...Bd2 17.Qd2 Qg5 (17...Qh4 18.Nf5 Qg5 19.Ng3=+) 18.f4 White begins to deal mighty blows 18...Qg4 19.e4 White prepares the advance f5 19...Nde7 (19...Nf6!? 20.d5 Nb8+=) 20.d5+/- Nb8 21.Rac1 Na6 22.f5 Rd6 23.f6 gf6 24.Bf6 Rb6 25.Qh6 Qg6 26.Qh4 Kf8 (better 26...Nc8+-) 27.Nh5 c5 (27...Nc8 28.Bg7 Kg8 29.Nf6 Rf6 30.Bf6 Re4+-) 28.dc6 Nc6 29.Nf4 (29.Nf4 Qf6 30.Qf6+-) 1-0. Dopper,Johan - Litjens,Harry, corr NED H, 1991.

15.Rf2 Bc5! 16.Kf1?? (16.dc5 Rd1#) 0–1. Dopper,Johan – Van Embden,Alex, 1994.

15.Rf2 Ne5. W Gross, W Labahn.

16.Bd4 Bc5 17.Qb3 Qb3 18.ab3 Rd4 19.Nbc3 Rd2 20.b4 Bf2 21.Kf2 a6. Auerswald.

16.Bd4 Bc5 17.Qb3 Rd4 (17...Bd4?! 18.Nd4 (18.Qf7?? Kh8 19.Nd4 Qd4-+) 18...Qd4 19.Nc3= (19.Qf7 Kh8 20.Nd2 Qa1 21.Nf1 Qc1-+)) 18.Qf7 Kh8 Threatening mate... how? 19.Nbc3 (19.Nd4 Qe1 20.Rf1 Bd4 21.Kh1 Ba1+/-) 19...Rdd8 (19...Rf8 20.Qf8 Bf8 21.Nd4-/+) 20.Qf4 Qd3 (20...Qf2?! 21.Qf2 Bf2 22.Kf2-/+) 21.Kh1 (21.Raf1 Re2 22.Ne2 Qe2-+) 21...Rf8 (21...Bf2?! 22.Qf2 Qe3 23.Qf7=+) 22.Rf3 Rf4 23.Rd3 Rd3 24.Nf4 Rc3 25.Nd5 Rc2 26.Nc7 Kg8 27.Ne6 Be7 28.a4 Rc4 29.g3 Kf7 30.Nf4 b6 31.Kg2 g5 32.Nd5 Bc5 33.h3 Bd4 34.Ra3 h5 35.Kf3 Bc5 36.Ra1 Rd4 37.Nc7 Rd3 38.Ke4 (38.Kg2 Bd6 39.Nb5 Rg3 40.Kf2 Be5-+) 0-1. Dopper,Johan - Van Embden,A, corr, 1994.

16.Bd4? Bc5–+ 17.Qb3 Rd4 18.Qf7 Kh8 19.Nbc3 Rf8 20.Qf8 Bf8 21.Nd4 Bc5 22.Nce2 Bd4 23.Nd4 Qd4 24.Re1 h6 25.g3 Qb4 26.Re8 Kh7 27.h4 c5 28.Re7 a5 29.Rff7 Qd4 30.Kh2 b5 31.h5 c4 32.Kh3 c3 33.Rc7 b4 34.Rfd7 Qe5 35.g4 a4 36.Rc8 Qf6 37.Rdd8 Qd8! 38.Rd8 b3 39.ab3 ab3 40.Rd3 c2 41.Rb3 c1Q 42.Rf3 g5 43.hg6 Kg6 44.Rf5 Qg1 45.Rh5 Qe3 (45...Qe3 46.Kg2 Qf4–+) 0–1. Zschalich,Arndt – Auerswald,Uwe, corr DDR–ch M848, 1985.

16.Bd4 Bc5 17.Qb3 Rd4 18.Qf7 Kh8 19.Nd4 Qc1 (19...Qe1 20.Rf1 Bd4 21.Kh1 Ba1 22.h3; 19...Bd4 20.Kh1 Rg8 21.Rf1 Ba1 22.Qc7; 19...Rf8 20.Qf8 Bf8 21.Nc3) 20.Rf1 Re1 21.Nd2 Qa1 22.Kh1. Auerswald.

16.Bd4 Bc5 17.Nbc3 Rd4 18.Nd4 Bd4 19.Qf1 (19.Qf3 Qe1) 19...Bc3 20.Rd1 Bd4. Auerswald.

12.a3 Ba5 13.Qb3 Nb6 14.d4 Rad8 15.Rc1 Rd6 (15...Be6 16.Qc2=+) 16.Bb5 (16.Nc3 Be6 17.Qb5 a6=) 16...Be4 17.Nbd2 Bd2 (17...Bd5 18.Qc2=+) 18.Nd2= Bd5 19.Qd3 (19.Qc2 Bg2 20.Bd3 Bh3 21.Bh7 Kh8-+) 19...a6 20.Bc6 Bc6 21.Rab1 (21.e4 Qf6 22.Rab1 Na4=) 21...Rg6 (21...Re6 22.Qf5=+) 22.g3 (better 22.e4!?=) 22...Qd7 23.Qf1 Rh6 24.Kh2 Qd6 (better 24...Bd5-/+) 25.e4? (25.Nc4 Nc4 26.Qc4 Be4-+) 25...Bd7 (25...Be4 26.Ne4 Re4 27.f3-+) 26.h4 (26.e5 Bh3 27.ed6 Bf1 28.Kg1 Bd3 29.dc7 Bb1 30.Nb1 Rc6 31.Rc6 bc6-+) 26...Rh4 27.Kg1 Rh5 (27...Rhe4 28.Ne4 Re4 29.Re1-/+) 28.Qg2 Rb5 29.Qf3 f5 30.Qc3 (30.e5 Qh6 31.Qf4 Qf4 32.gf4 Nd5-/+) 30...fe4 31.Qe3? (31.Qc7 Qd5-+) 31...Rh5 (31...Bf5!? 32.Nc4 Nc4 33.Rc4-+) 32.Ne4 Qe6 (32...Qe6 33.Rc7 Nd5-+ (33...Qe4?! 34.Qe4 Re4 35.Rb7-+)) 0-1. Mauersberger,Hermann - Bergmann,Michael, corr Germany, 1995.

12.a3 Ba5 13.Qb3 Nb6 14.d4 Be6 15.Qc2 a6 16.Nbd2 Nc8 (16...Bd2 17.Nd2 Rad8 18.Rac1+=) 17.e4 N6a7 18.Bd3 h6? (18...c6 19.Rfb1+=) 19.Rfe1 (19.d5!? Bd7 20.Nc4 Qc5+-) 19...c6 20.d5 Bd7 21.Bd4 White prepares e5 21...b5 22.Bc5 Qd8 23.d6 Bb6 24.e5 Bc5 25.Qc5 Qb6 (25...Be6 26.Rad1+/-) 26.Nb3 Qd8 27.Qd4 (27.Rad1 Nb6+/-) 27...a5+- 28.Nc5 Rb8 29.Nh4 (29.Nh4 b4 30.Rab1+/-; 29.Qe4 Kf8+-) 1-0. Mus,Roman - Borucki,Bogumil, corr 1AMM Poland, 1991.

12.a3 Bd6 13.Re1 Bg6 (13...Rad8 14.d3 Ne3 15.Qb3-/+) 14.Bc4 Nb6 15.Bf1 Nd8 (15...a6 16.d4=+) 16.d4= Ne6 17.Qb3 Rac8 18.Nc3 c5 19.a4 Bh5 (19...c4 20.Qa2 a5 21.Nd2=) 20.Nd2 (20.a5 Na8 21.Nd2 cd4 22.ed4 Qd8+=) 20...cd4 21.ed4 Bf4 22.Nce4 Red8 (22...Qd8 23.a5 Nd4 24.Bd4 Qd4 25.ab6 Bd2 26.Nd2 Re1 27.Re1 Qd2 28.Re5+-) 23.a5 Nd5 24.Nc4 (24.Bc4 Qb4 25.Bd5 Bd2 26.Nd2 Qd2=) 24...Bg6 25.g3 Be4 (25...Bb8 26.Rad1=) 26.Re4+= Bg5 27.Ra4 (27.Bg2 Qb4 28.Qb4 Nb4=) 27...Rb8 (27...Qc7 28.f4 Bf6 29.Ne5=) 28.Ne5 (28.f4 Bf6+=) 28...Bf6 29.Ng4 (29.Bg2 Ng5 30.Re2 Qe6+=) 29...b5= 30.Ra1 (30.Bb5? a6 31.Ba3 Qc7 (31...Rb5 32.Be7 Rb3 33.Nf6 Nf6 34.Re6 fe6 35.Bd8+/-) 32.Nf6 gf6 33.Rg4 Kh8-+; 30.Nf6? A) 30...Qf6?! 31.Ra1-/+ (31.Bb5 a6-+); B) 30...Nf6 31.Re6 Qe6-+) 30...Qc7 31.h4 (31.Ne5 Be5 32.Re5 Nf6=) 31...a6 32.Bh3 Qc4 Increasing the pressure on the isolated pawn on d4 33.Qf3 Qb4 (33...Bd4 34.Nh6 gh6 35.Be6 Bb2 36.Qf7 (36.Rc4?! fe6 37.Rg4 Kh8+-) 36...Kh8 37.Rc4+-; 33...Nd4 34.Bd4 Bd4 35.Nh6 gh6 36.Qg4 Bg7 37.Rc4 bc4 38.Re1+=) 34.Rb1 Nec7 (34...Bd4? 35.Nh6 gh6 36.Be6+-; 34...Qa5?! 35.Nf6 Nf6 36.Be6 fe6 37.Re6-/+; 34...Nd4?! 35.Qd3 Qc4 36.Qd1=+) 35.Ne5 (better 35.Qa3 Be7 36.Qb4 Bb4 37.Ne5=+) 35...Qa5 (better 35...Be5 36.Re5 Qa5-/+) 36.Nc6+= Qb6 37.Nb8 Qb8 38.h5 a5 39.h6 Qb6 (39...gh6 40.Bf5 Combination) 40.Rbe1 (40.hg7 Bg7 41.Bf5 a4+=) 40...b4 41.Bd7 gh6 42.Rc1 1-0. vanycuba (2140) - marekt (2350), gameknot.com, 2021.

12.d3 Ne3 13.fe3 Qe3 14.Kh1?? (better is 14.Rf2 Bd6 15.Qd2+=) 14...Qe2–+ (14...Qe2 15.Qe2 Re2–+) 0–1. Hal1958 – Ppadala, playchess.de, 2004.

12.d4 Nf4 13.a3 Bd6 14.Nbd2 Ne2 15.Qe2 Rad8 16.Rfe1 a6 17.e4 Bf4 18.d5 Nb8 19.Qc4 Bg6 20.Nb3 b5 21.Qd4 f6 22.Nc5 Bf7 23.Nd3 White prepares the advance e5 23...Bd6 24.Qc3 Rc8 25.e5 (better is 25.Nd4+=) 25...fe5–/+ 26.Nde5 Qf6 (better is 26...Bd5!? 27.Ng4 Qf8+=) 27.Rad1 Bh5 28.g4 Bg6 29.Qb3 (29.Ng6 hg6 30.Re3 Qc3 31.Rc3+= (worse is 31.Bc3 Ba3 32.Ne5 g5+=)) 29...Bf7= 30.Re3 c5 31.Qc2 c4 32.Rde1 (better is 32.Nf7!? Qf7 33.Ng5+=) 32...Be5+= (32...Bd5 33.Qd2 Rc5 34.Nd7 Qf3 35.Re8 Kf7 36.R8e7 Be7 37.Ne5 Kg8 38.Nf3+–) 33.Ne5 Bd5 34.Nc4 Qf8 35.Re8 Re8 36.Re8 Qe8 37.Qc3 Qg6 38.Ne3 Be6 39.Ng2 (39.Ng2 Qf7 40.Nf4+/–) 1–0. Jethan,Martin – Freytag,Walter, DESC, 2004.

12.Nd4 Nd4 13.Bd4 Qg5 14.Bf3 Bh3?? (better is 14...Be6+=) 15.Bd5+/– Qd5 16.gh3 Re6 17.f3 Rh6 18.Kf2 Rh3 19.Rg1 Rh2 20.Ke1 Qe6?? (20...Be7 21.Rg7 Kf8–+) 21.Qb3 Qa6?? (21...Qb3 22.Rg7 Kf8 23.ab3 a6+–) 22.Rg7 Kh8 23.Rg6 (23.Rf7 Qf6 24.Bf6 Kg8 25.Rc7 Kf8 26.Qf7) 23...f6+– 24.Bf6 (24.Bf6 Qf6 25.Rf6+–) 1–0. forsetinn (1630) – beorne, gameknot.com, 2013.

12.a3 Ba5 13.Qb3 Nb6 14.d4 Rad8 15.Rd1 Rd5 16.Nc3 Bc3 17.Bc3 Nd8 18.a4 c6 19.a5 Nc8 20.g4+/– Bg6 21.Ne5 Nd6 22.Be1 Qh4 23.Kg2 Ne6 24.f3 Qg5 25.h4 Qe7 26.Bg3 f6 27.Ng6+– hg6 28.e4 Nb5 29.ed5 (29.ed5 Ned4 30.d6 Nb3 31.de7 Na1 32.Bc4 (32.Ra1?! Re7 33.Bc4 Kh7+–) 32...Kh7 33.Rd7+– (33.Ra1?! Re7 34.Bf2 a6+–)) 1–0. Kuehn,Peter – Diener,Rudolf, corr, 1975.

12.a3 Ba5 13.Qb3 Qd7 14.Nc3 Bc3 15.Bc3 b6 16.Rfc1 Nf4 17.Qd1 Ne2 18.Qe2 Re6 19.g4 Bg6 20.Nh4 Bd3–/+ 21.Qf3 Rd8 22.Bg7?? Kg7–+ 23.Qc6 Rc6 24.Re1 h5 25.f3 hg4 26.hg4 Rh6 27.Ng2 Rdh8 28.Kf2 f5 29.g5 Rh2 30.Rg1 Be4! 31.d4 Bf3! 32.Kf3 Qc6 33.Kf2 Qc2 34.Kf1 Rg2! 35.Rg2 Rh1 36.Rg1 Rh2 (36...Rh2 37.Rg2 Qg2 38.Ke1 Qe2#) 0–1. Gzel,Leszek – Marszalkiewicz,Janusz, corr Poland, 1998.

12.a3 Ba5 13.Qb3 Rad8 14.Qb7 Rd6 15.Qb3 Rb8 16.Qc2 Bg6 (16...Nf4! 17.ef4 Qe2=) 17.d3+= Bf5 (17...Ne3 18.fe3 Qe3 19.Kh1 Bd3 20.Bd3 Qd3 21.Rc1+=) 18.e4 (18.Rc1 Qe6 19.Kh2 Nd8+/–) 18...Nf4+= 19.Bc1 (19.Rc1 Be6 20.Bf1 Qd7=) 19...Ne2= 20.Qe2 Rbd8?? (20...Qf6 21.Ra2 Be6+=) 21.Qc2 (better is 21.Bg5!? f6 22.Be3 Bh3 23.gh3 Rd3 24.Bf4+/–) 21...Bh3 22.gh3 (22.Bg5 Qe6 A) 23.Bd8 Bg2 24.Nh4 Bf1 25.Kf1 Qh3 (25...Nd8?! 26.Nf5–/+) 26.Kg1 Nd4–+; B) 23.gh3 Qh3 24.Nh2–/+) 22...Rg6+= 23.Kh2? (better is 23.Ng5 h6 24.Be3+=) 23...Qd6–+ 24.Kh1 Qf6 25.Qe2 (25.Bf4 Qa1 26.Nh4 Re6–+) 25...Qa1 26.Bb2? (26.Bg5 Rb8 27.Qc2–+) 26...Qa2 27.a4 (27.Nh4 Rb8 28.Ng6 Rb2 29.Qd1 fg6 30.Kg1–+) 27...Rb8 (27...Rb8 28.Qd1 Qe6–+) 0–1. Emperado,Emmanuel (2305) – Nouri,Hamed (2325), NATIONAL Chess Championships GRAND FINA, 2016.

12.a3 Bc5 13.d4? (better 13.Qb3 Nb6 (13...Nf4 14.Bd1 Ne6 15.Qb7 Qd6 16.Qb3 Rab8 17.Qc3 Bb6 18.Ne5+= 0.44) A) 14.Qc3 f6 (14...Qf8; 14...f5) 15.Bb5 Bf3 16.gf3 Rab8 17.Rc1 Bd6 18.Bc6= 0.00; B) 14.Nc3 Na5 (14...a6; 14...a5) 15.Qa2 Bd6 16.Nb5 Nc6 17.Qb3 Rad8 18.Rfc1= 0.13; C) 14.Rc1 Bd6 15.d4 Bg6 16.Nbd2 a6 17.d5 Ne5 18.Bd4= 0.13; D) 14.Rd1 Bd6 (14...Rad8 15.d4 Bd6 16.Nbd2 Bg6 17.Bb5 a5 18.e4+/- 1.25; 14...a5) 15.d4 Na5 16.Qc3 Bf3 17.Bf3 Na4 18.Qc2= 0.16; E) 14.d3 Bd6 (14...Rad8) 15.Nbd2 Rad8 16.Ne4 Be5 17.Rfd1 Bb2 18.Qb2= -0.09; F) 14.d4= Bd6 15.Nbd2 Bg6 16.Bb5 Qd7 17.Nh4 Bh5 18.Rfc1+= 0.31) 13...Ne3!-+ 14.fe3 Qe3 15.Rf2 (15.Kh1 Qe2 16.Nbd2 Bf3 17.Nf3 Bb6-+) 15...Bf3 16.Bf3 (16.dc5 Be2 17.Qd5-+) 16...Nd4 17.Nc3 (17.Bd4 Bd4 18.Raa2 Qe1 19.Qe1 Re1 20.Kh2 Bf2 21.Rf2 Rb1 22.Be4-+) 17...Nf3 (better 17...Qf2! 18.Kh1 Nf3 19.gf3 Qb2-+) 18.Qf3 Qd2 (better 18...Qf3 19.gf3 Rad8-+) 19.Qf7=+ Kh8 Black fights for the Initiative 20.Na4 Qf2 21.Qf2 Bf2 22.Kf2 Rad8 23.Rb1 (23.Bc3 b5 24.Nc5 Rd5=+) 23...Rd2 24.Kf3 Ree2 (24...Rf8 25.Ke3 Rg2 26.Be5-/+) 25.Bc3 (25.Bd4 b6 (worse 25...Rg2 26.Rb7 h5 27.Be3+/-) 26.Be3 Rc2=+) 25...Rf2 26.Ke3 Rde2 27.Kd3 b6 28.Nc5 (28.Rb5 h6 29.g4 Ra2-/+) 28...h6 29.Ne4 Rg2 30.Rf1 Kg8 31.Be5 (31.Rf4 Ra2 32.a4 a5-+) 31...Ra2 32.Bc7 Ra3 33.Nc3 Rg5 34.Rf8? (34.Bf4 Rd5 35.Kc2-+) 34...Kf8 35.Bd6 Kf7 36.Ba3 Rg3 (36...Rg3 37.Kc4 Rh3-+) 0-1. Maegde,Egon - Gruener,Gottfried, corr, 1985.

12.a3 Bd6 13.Qb3 Nb6 14.d4 a6 (14...Rad8 15.Rd1=) 15.Nbd2 Bg6 16.d5 Ne5 17.Ne5 (17.Bd4 Nf3 18.Bf3 Rad8=) 17...Be5 18.Be5 (18.Nc4 Nc4 19.Bc4 b5–/+) 18...Qe5 19.Bf3 f5 (19...Rad8 20.Rfd1=) 20.Rab1 (20.Nc4 Nc4 21.Qc4 Re7+=) 20...Bf7 (20...f4 21.d6 Bf7 22.Qb4 fe3 23.dc7 ed2 24.Qb6=) 21.Nc4+= Nc4 22.Qc4 b5 23.Qc6 Red8 24.Rfd1 Qd6 25.Qd6 (25.Qc3 Re8+=) 25...cd6 (25...Rd6 26.Rbc1 Rad8 27.Rc5+=) 26.Rbc1 h5 27.Rc7 g5 28.Kf1 Rac8 29.Rc6 a5 30.Rdc1 Rb8 31.Ra6 g4 32.Be2 Bd5 33.Ra5 Rdc8 34.Rc8 Rc8 35.f3 g3 36.Ke1+= Rc2 37.a4 Bc4 38.Bc4 bc4 39.Rf5 Rg2 40.Rg5 Kf7 41.a5? c3–/+ 42.Kd1 Rd2 43.Kc1 g2 (44.Rg3 Ra2–+) 0–1. Kern – Klink, Hessen clubgame, 1997.

12.Qb3 Rad8 13.a3 Ba5 14.Qb7 White creates threats along the open b-file 14...Rd6 15.Nd4 Be2 (15...Rb8 16.Nc6 Rb7 17.Ne7 Ne7 18.Bh5 Rb2 19.d4+=) 16.Nc6+= (16.Ne2? Rb8 17.Qa6 Rb2-+) 16...Qg5 17.f4 (worse 17.Na5 Bf1 18.Kf1 Rb6 19.Qa7 Rb2-/+) 17...Qg3 18.Rf2 (18.Na5 Bf1 19.Qd5 Rd5 20.Kf1 Re3 21.Nc3 Rd2 22.Ne2 Ree2 23.Bg7 Qg2) 18...Bb6 19.Bd4 (19.Re2 Nf4 20.Kf1+/-) 19...Bb5=+ 20.Ne5 Bd4?? (better 20...f6 21.Bc5 A) worse 21...Bc5 22.Qb5 Rdd8 23.Nc6 Nf4 24.Qc4 Re6 25.Rf4 (25.Qf4 Qf4 26.Nd8 Qe5-/+) 25...Be3 26.Kf1 (26.de3 Rd1 27.Rf1 Qe3 28.Kh2 Rf1 29.Qf1 Rc6=) 26...Qf4 27.Qf4 Bf4 28.Nd8+/-; B) 21...Nf4 22.Rf4 fe5 (worse 22...Bc5 23.Qb5 Re5 24.Qb8 Kf7 25.Qc7 Ke8 26.Rf1+=) 23.Bd6 Qf4 24.Qd5 Qf7 25.Qb5 cd6=) 21.Qb5+/- Do you see the mate threat? 21...c6 22.Qb7 Threatening mate... how? 22...Rf6 23.Qd7 Threatening mate: Qxe8 (23.ed4 Nf4 24.Rf4 Qf4-+) 23...Rf8 24.Rf3 (24.ed4 Nf4 25.Kf1 Qh2 26.Rf4 Qf4 27.Nf3 Qg3+=) 24...Qe1 25.Rf1 Qg3 26.ed4 Nf4 27.Rf4 Qf4 28.Ng4 (28.Qa7 Qf1 29.Kh2 Rf2 30.Qf7 R8f7 31.Kg3 Rg2 32.Kh4 Qf6 33.Kh5 Qg5) 28...Qf1 (28...Re6 29.Ne5=) 29.Kh2 Rg6 (29...Re6 30.Ne5= (30.Qa7?? Qf4 31.g3 Re2 32.Kg1 Qg3 33.Kh1 Qg2)) 30.Ne3 Qc1 (30...Qf2 31.Nc3 Qd2 32.Ncd1=+) 31.Qf5 (31.Qb7 Re6+/-) 31...Re8+= 32.Ra2 Qe1 33.Rb2 h5 (33...Qg3 34.Kg1+/-) 34.Qf3 (34.Qh5?! Qg3 35.Kg1 Qe1 36.Kh2 Qg3 37.Kg1 Qe1 38.Kh2=) 34...h4 35.Rb7 Rf6 36.Qg4 Rg6 37.Qf4 Rf6 ½-½. Thystrup,Preben - Hanisch,Bernd, corr ICCF EU-M-GT, 1989.

12.Qb3 Rad8 13.a3 Ba5 14.d4 Qe6 15.Ng5 (15.Qb7?? Rb8 16.Qa6 Rb2-+) 15...Qh6 (15...Qg6 16.Bh5 Qh5 A) 17.Qb7? Nde7-+ (17...Qg5 18.Qc6 Re6 19.Qc1-+); B) 17.Nf3=+) 16.Bh5 Qh5 17.Nf3 (17.Qb7? Nde7 (17...Qg5 18.Qc6 Re6 19.Qc2-/+) 18.Ne4 Rb8-+) 17...Re6 18.Nc3 (18.Qb7?? Rb8 19.Qa6 Nd4 20.Qa7 Nf3 21.Kh1 Rd8 22.Qa5 Ng5-+) 18...Bc3 19.Bc3 Rg6 20.Kh1 (20.Kh2 b6=+) 20...Rdd6= 21.Rg1 (21.Ra2 Rgf6 22.Ne5 Rd8=+) 21...Rgf6=+ 22.Kh2 Rh6 23.Ne5 Ne5 (23...Rd8!?=+) 24.de5= Nf4 (24...Nf4 25.ef4 Rd3=) 0-1. Berti,Massimiliano (1835) - d'Ettorre,Rodolfo (1900), FICGS, 2008.

12.Nd4 Be2 13.Ne2 Rad8 14.Nbc3 Nb6 15.Qc2 Nc4 16.Bc1 N6a5 17.d3=+ Na3 18.Qa4 Nc6 19.d4 Rb8?? 20.Nd5+– (20.Nd5 Qe4 21.Nb4 (21.Ba3?! Qd5 22.Bb4 Qc4=) 21...Nb4 22.Ba3+– (22.Qb4?! Nc2 23.Qb2 Na1+/–; 22.Qa3?! Nc2 23.Qb2 Na1+/–)) 1–0. Sokolik,Bogdan – Kwiek,Janusz, corr 1. AMM Poland, 1991.

12.Nd4 Be2 13.Ne2 Rad8 14.Nbc3 Nc3 15.Nc3 Rd3 16.a3 Ba5 17.Qc2 Red8 18.Rfd1 Qd6 (18...Qe6 19.Rac1–/+) 19.Nb5=+ Qg6 Attacking the backward pawn on d2 20.a4? (better 20.Nd4!?=) 20...Rd2–/+ 21.Rd2 Rd2 (21...Bd2?! 22.Qg6 hg6 23.Rd1=) 22.Qg6 hg6 23.Bd4 (23.Bc3 Bc3 24.Nc3 Na5–/+) 23...a6 24.Na3?? (better 24.Bc3 Bc3 25.Nc3–+) 24...Nd4 25.Nc4 (25.ed4 Bc3 26.Rb1 Ra2–+) 25...Bc3 (better 25...Nb3 26.Rb1 Rd3 27.g3–+) 26.Rb1 (26.Nd2 Ba1 27.ed4 Bd4–+) 26...Ne2 27.Kh2 (27.Kf1 Ra2 28.Rb7–+) 27...Ra2 (27...Rc2 28.Rb7 Be1 29.Na3–+) 28.Rb7 Be1 29.Rc7 Ra4 (better 29...Bf2 30.Rc8 Kh7–+) 30.Nd6 (30.Nb2 Ra2 31.Nd3–+) 30...Bf2 31.Rc8 (31.g4 Bg3 32.Kg2 Bd6–+) 31...Kh7 32.g4 Bg3 33.Kg2 Bd6 34.Kf3 (34.Rc6 Be5 35.Kf3 Ra2–+) 34…Ra2 0–1. retiponziani (1775) – bridlingtonbrummie (2300), ChessWorld.net, 2013.

11.Qa4 Qd7 12.Nc3 Nb6 13.Qc2 Nb4 14.Qb1 Bf3 15.Bf3 Nd3 16.Bb7 Rab8 17.Be4 Nb2 18.Qb2 Nc4 19.Qc2 Qd2 20.Bh7 Kf8 21.Rfd1 Qc2 22.Bc2 Bf6 23.Rd3 (better 23.Bb3!? Bc3 24.Rac1 Ne3 25.fe3=) 23...Nb2-/+ 24.Nd5 Nd3 25.Nf6 Nb4?? (better 25...Red8 26.Ne4 Rb4-+) 26.Bd3?? (better 26.Nd7 Ke7 27.Nb8 Rb8 28.Rb1+/-) 26...Nd3-+ 27.Ne8 Ke8 (27...Re8?! 28.Rd1 Rd8 29.Kf1-+) 28.Rd1 c5 29.Rd3 (29.a3-+) 29...Rb1 30.Rd1 Rd1 0-1. pacalmisu (2265) - Ruminoc (2355), Rated Blitz game, lichess.org, 2016.

11.Qb3 a6 =+.

11.Nc3 Qd7 12.d4 Rad8 13.Rc1 Qe6 14.h3 (14.Nd5 Qd5 (worse 14...Rd5 15.Bc4+/- Qf5 16.Bd5 Qd5 17.Bc3 b6 18.Qe2 Bd6) 15.Bc4 Qa5= (15...Bf3 16.Qf3 Qf3 17.gf3 Rd6 18.Kh1 Nb4) 16.Qb3 Bf3 17.Bf7 Kf8 18.Be8 Bd5) 14...Bh3 (14...Nc3 15.Bc3 Bf5 16.Bd3 Rd6 17.Rb1 b6 18.Rb5 Be4; 14...Bf5 15.Nd5 Qd5 16.Bc4 Qd6 17.Bd3 Bd3 18.Qd3 Qd5) 15.gh3 (15.Nd5 Rd5 16.Rc6 Qc6 17.gh3 Qg6 18.Kh1 Qe6) 15...Qh3 16.Nh2 (16.Qb3 Nd4 17.Nd4 Rd6 18.Bh5 Qh5) 16...Bd6 17.Ng4 Nf6 (17...Nf6 18.Nf6 gf6-+) 0-1. Noack,Thomas (2000) - Gierth,Karlheinz (2260), RSX7E - A00 - Sokolsky-2, 2009.

11.d4 a6 12.Qc2=+.

11.d4 Bd6 12.Nc3 Nc3 13.Bc3 Qe7 (13...Qf6 14.Qb3 Rab8 15.d5 Qh6 16.h3= 0.19; 13...Nb4 14.Bb4 Bb4 15.Qb3 Qe7 16.a3+= 0.31; 13...Be6 14.Qc2 Bd5 15.Rfb1 Be4 16.Bd3= -0.12; 13...Bf5 14.Bd3 Bd3 15.Qd3 Rb8 16.Rfd1+= 0.28; 13...Rb8 14.Qc2 Bh5 15.Rfd1 Bg6 16.Qb2= 0.25; 13...Qd7 14.Rb1 Rab8 15.d5 Bf3 16.Bf3+= 0.34) 14.Qb3 (14.Rb1 Rab8 15.d5 Bf3 16.Bf3= 0.19) 14...Nd8 (14...Rab8 15.Rfd1 Bf5 16.Rac1= 0.13) 15.Rfc1 (15.d5 Bf5 16.Rfd1= 0.16) 15...Rc8 (15...Bf5 16.a3= 0.16) 16.Qa4 (16.Qc2= 0.13) 16...a6 17.d5 Bd7 18.Qd4 f6 19.Bc4 Nf7 20.Re1 (20.Qh4 c5=) 20...Bg4?? (better 20...b5 21.Bb3 b4=+) 21.Qg4+- (21.Qg4 b5 22.Bb3+-) 1-0. Houthuijzen,A - Hoch,D, corr GT-910072A, 1991.

11.d4 Qd7 12.Nc3 Ncb4 (12...Rad8 13.Qb3=+) 13.Nd5 (13.Ne5 Be2 14.Qe2 Qd6=) 13...Nd5 (13...Qd5 14.a3 Nc6 15.Rc1=) 14.h3 (14.Ne5 Be2 15.Qe2 Qd6=) 14...Bh5 (14...Bf5 15.Ne5 Qd6 16.Bc4=) 15.Qb3 (better is 15.Ne5 Be2 16.Qe2=) 15...c6?? (better is 15...Qe6=) 16.Ne5+– Qf5 17.e4! Qe4 (17...Qg5 18.Bh5 (18.ed5?! Be2 19.Rfe1 Bh5+/–) 18...Qh5 19.ed5 cd5 20.Qd5+–) 18.Bh5 g6 (18...Nf4 19.Bf7 Kh8 20.Nf3 Ne2 21.Kh1+–) 19.Bf3 Qf5 20.Qb7 (20…Rab8 21.Qc6+–; < 20.Bd5 cd5 21.Qd5 Rad8 22.Qb7 Rb8+–) 1–0. Dziel,Jaromir – Fengsrud,Roy, corr 3GMM–08, 1996.

11.Nd4 Be2 12.Qe2 Nd4 13.Bd4 Bf6 14.Bf6 Qf6 15.Na3 Rad8 16.Rfd1 Nf4 (16...c6 17.Qg4+=) 17.Qc4 (better is 17.Qf3!? Nd5 18.Qf6 Nf6 19.d4=) 17...Nd3–/+ 18.f4? (18.Qc7 Qf2 19.Kh1 Qf6–/+) 18...c6 (18...Nb2 19.Qc2 Nd1 20.Rd1–+) 19.Nc2 (better is 19.Qb3!? b5 20.Rdb1–/+) 19...Nb2–+ 20.Qb3 Nd1 21.Rd1 b6 22.a4 Qe6 23.Qb2 (23.Qe6 Re6 24.Kf2 Rd5–+) 23...Qd6 24.Nd4 c5 25.Nf3?! Re3! 0–1. marvis (1835) – dziadzius23 (1745), internet, 2013.

12.d4 a6 13.a3 Nc3 14.Bc3 h6 15.Qb3 Be6 (15...Rb8!?=) 16.Qb7+/– (16.Qb7 Qd6 17.Qb2+/– (17.Ba6? Reb8–+)) 1–0. mr5reasons1 (1745) – pawnicious (1720), gameknot.com, 2012.

12.d4 Qd6 13.Nd5 Qd5 14.h3 Bh5 (14...Be6 15.Qc2=) 15.a3 (15.Qb3 Qb3 16.ab3 Nb4+=) 15...Rad8 16.Rc1 Bg6 17.Bc4 Qd6 18.Bb5 Be4 19.Nd2 (19.Bd3 Qd5=) 19...Bd5 (19...Bg2!? 20.Kg2 Qd5 21.Ne4 Re4 (worse 21...Qb5 22.Nf6 gf6 23.Rb1=) 22.Bc6 Rg4 23.Kh2 Rg2 24.Kh1 bc6=+) 20.Qc2 (20.Bd3=) 20...a6 (20...Bg2 21.Kg2 Qd5 22.Ne4 Re4 23.Bc6 bc6 24.Qc6 Rg4 25.Kh2 Rg2 26.Kh1 Rf2 27.Qd5 Rf1 28.Rf1 Rd5 29.Rc1=+) 21.Ba4 (21.Bd3 h6+=) 21...Re7 (better 21...Qe6!?=) 22.e4+/- Be6 (22...Nd4 23.Bd4 Bd4 24.ed5 Qd5 25.Nf3+/-) 23.d5 (23.Nf3 Qf4 24.d5 Bb2 25.Qb2 Bh3 26.dc6 b5+/-) 23...Bb2 24.Qb2 Bc8 (24...Ne5!? 25.de6 Nd3 26.Qb7 Nc1 27.Rc1 Qd2+=) 25.Bc6 (25.dc6 b5 26.Bb3 Qg6+-) 25...bc6 26.Rc6 Qf4 27.Rfc1 Qg5 28.Qc3 (better 28.R1c3!? Qf4 29.Qc2+-) 28...Bh3+/- 29.Qh3 Qd2 30.Rc7 (30.Qf5!?+/-) 30...Rc7 (30...Re4 31.Qd7 Re1 32.Re1 Qe1 33.Kh2 Qe5 34.Kg1 Qa1 35.Kh2 Qe5 36.Kg1 Qe1 37.Kh2 Qe5=) 31.Rc7 Qe1 32.Kh2 Qe4 (worse 32...Qf2 33.Rc8 Qf4 34.Kg1+=) 33.Qd7 (33.Rd7!? Re8 34.Qg3=) 33...Qh4=+ 34.Qh3 Qf4 (34...Qf2 35.Rc8 Qf4 36.Kh1=+) 35.Qg3= Qh6 36.Kg1 Qf6 37.Rc1 g6 (37...Rd5?? 38.Rc8 Rd8 39.Qb8 Qa1 40.Kh2 Qe5 41.Qe5 Rc8 42.Qd6+-) 38.Rd1 Qd6 (38...Rd6 39.Qg4=) 39.Qd3 (39.Qd6 Rd6 40.f4 Kf8+=) 39...h5 40.a4 a5 (40...Rb8 41.Rc1+=) 41.Qb5+= Qb4 42.d6 Rd6 43.Qb8?? (better 43.Rd6 Qd6 44.Qa5 Qd1 45.Kh2=) 43...Qb8-+ 44.Rd6 Qd6 45.g3 Qb4 46.Kg2 Qa4 47.Kf3 Qd4 48.Kg2 Qd5 49.Kh2 (49.Kh2 a4 50.f3 a3 51.Kg2 a2 52.Kf2 Qd2 53.Kf1 a1Q; 49.Kg1 a4 50.g4 Qd1 51.Kh2 h4 52.Kg2 Qd3 53.Kg1 h3 54.g5 Qf3 55.Kh2 Qg2). carlos78 (2125) - pacal56 (2110), Rated Blitz game, lichess.org, 2014.

12.d4 Bf5 13.Qb3 Nd4 (13...Be6!? 14.Qb7 Nd4 15.Nd4 Bd4 16.ed4 Rb8 17.Qa7 Rb2+=) 14.Nd4+= Bd4 15.Nd5 (15.Rad1 Ne3 16.fe3 Be3 17.Kh1+-) 15...Bb2= 16.Qb2 Qd5 17.Rfd1 Qe5 18.Qb7 Be4 19.Qb5 Qf6 20.Qd7 Rad8 (20...Qg5!? 21.Bf1 Bf3=) 21.Qc7+/- Rc8 (21...Qg5 22.g3+/-) 22.Qf4 (22.Qa7 Qg5 23.Bf1 Rc2+-) 22...Qb2 (22...Qf4 23.ef4 Bg2 24.Bg4+=) 23.Bf3 Bc2 24.Rdc1 (24.Bd5 Re7 25.Rac1 Rd7+/-) 24...Bg6 25.Rd1 (25.Re1 Rc2+/-) 25...Rc2 (25...Bc2 26.Bd5 Rf8+/-) 26.Bd5 Rec8 27.e4 R2c5 28.Bb3 h6 29.Rab1 Qe2 30.Re1 Qh5 31.Rbd1 Re8 32.f3 Kh7 (32...a5 33.Rd7+-) 33.Rd5 Rd5 34.Bd5 Qe5 (34...Re7 35.Rc1+-) 35.Qe5 Re5 36.f4 Re7 37.Kf2 f6 38.e5 fe5 39.Re5 Rc7 40.Bb3 Bd3 41.Ke3 Ba6 42.Kd2 g6 43.g3 Kg7 44.Ke3 Bc8 45.Kd4 Kf6 46.h4 Bg4 47.Re8 Bf3 48.Rf8 Kg7 49.Rd8 Bg4 50.Ke5 Rc5 51.Bd5 Ra5 52.Rg8 (better 52.Kd6!?+-) 52...Kh7+= 53.Rf8 h5? (better 53...Bf3! 54.Rf7 Kg8 55.Rd7 Kf8+=) 54.Kd6+- Bf5 (54...Ra3 55.Bb3+-) 55.Rf7 Kh8 56.Rb7 Ra3 57.Bb3 (57.Ke5 a5+-) 57...Bb1+/- 58.Ke5 Ba2 59.Ba2 (59.Bc2 Ra6+/-) 59...Ra2 60.Kf6 Ra3? (better 60...Ra6!? 61.Kg5 Kg8+/-) 61.Kg6+- Rg3 62.Kh5 Rg7 63.Rb5 a6 64.Ra5 Rh7 65.Kg4 Rg7 66.Kf3 Rg6 (66...Ra7 67.f5+-) 67.Rh5 Kg7 68.Rg5 (68.Rg5 Kf7 69.Rf5 Ke6 70.Ke4+-) 1-0. Trochet,Jean Sebastien - Thystrup,Preben, corr ICCF TT-2-86-1, 1988.

12.Nc3 a6 13.Rc1 Qd7 14.Ne5+= (14.Ne5 Ne5 15.Nd5 Qd5 16.de5 Qd1 17.Bd1 Be5 18.Be5 Bd1 19.Rfd1 Re5 20.Rc7+=). pereira (1970) – ozana (1755), internet, 2007.

12.Nbd2 a6 13.Qb1 Nf4 14.Bd1 Ng6 15.Ba4=.

12.Nbd2 a6 13.Qb1 g6 14.Re1 Qe7 15.e4 Nf4 16.Bf1 Qb4 17.Qc1 Bd4 18.Bd4 Nd4 19.Rb1 Qa4 20.Nd4 Qd4 21.Rb7 Be6 22.a3 Rec8 23.e5 c5 24.Rb6 Qd8 25.Ra6 Ra6 26.Ba6 Qg5 27.g3 Nh3 28.Kf1 Qf5 29.f3 Ra8 30.Bb5 Rd8 31.Kg2 Ng5 32.Re3 c4 33.Nc4 Rd3= 34.Rd3 ½–½. Mehlhorn,Uwe – Vieten,M, BdF, 2000.

12.Nbd2 a6 13.Qc2 Ncb4 14.Qb3 Bf5=.

12.Nbd2 Bf5 13.Nc4 Nb6 14.Rc1 Nc4 15.Bc4 Na5 (15...Qe7 16.Qb3=) 16.Be2 (16.Bd3 Bd3 17.Qd3 Nc6=) 16...b6 (16...Nc6 17.Qb3 Rb8 18.Bc4=) 17.Ba3 (17.Bb5 Re7+=) 17...Be7 (17...c6 18.Bd3 Bd3 19.Qd3=) 18.Be7+= Qe7 19.Qa4 (19.Bd3 Bd3 20.Qd3 c6+=) 19...Rac8 (19...Rad8 20.Bb5 c6 21.Bc6 Nc6 22.Qc6+= (worse 22.Rc6 Bd7-/+)) 20.Ba6 (20.Bb5 Red8+=) 20...Rcd8= 21.Rc3 (21.Rc3 c6 22.Rfc1=; 21.Bb5 Bd7+=). Oppelender,Jakob - Milo,Milao, DESC, 2001.

12.Nbd2 Bf5 13.Nc4 Nb6 14.Rc1 Nc4 15.Bc4 Na5 16.Be2 b6 17.Ba3! Be7 18.Be7 Qe7 19.Qa4 Rac8 20.Ba6! Rcd8 21.Rc3 Be4 22.Be2 Rc8 23.Rfc1 c6 24.Nd2 Bd5 25.Bf3! Bf3 26.Nf3 f6 27.h3 Red8 28.Nd2 Kf8 29.Nb3! Rd5 (29...Nb3 30.ab3 c5 31.b4 Rd5 32.bc5 bc5 33.Qc2+/-) 30.Na5 Ra5 31.Qc2 g6 32.Rc6 Rd8 (32...Rc6 33.Qc6 Ra2 34.Qc8 Qe8 35.Qb7!+/-) 33.Qb3 Rad5 34.R1c4! R5d6 35.Qc3 Rc6 36.Rc6 Kg7 37.Qc4 Rd6 38.d5 Kf8 (38...Rc6 39.dc6! Qc7 40.Qe6+/-) 39.g3 Kf7? 40.Rc7! 1-0. Sokolski,Alexey – Anishchenko, Minsk, 1959.

12.Nbd2 Bf5 13.Nc4 Nb6 14.Rc1 Be4 15.Bd3 Qd5 16.Be4 Qe4 17.Nfd2 Qg6 18.Ba3 Rad8 19.Nb6 cb6 20.Qf3 h6 21.Nc4 Be7 22.Be7+= Re7 23.a4 Qe4 24.Qe4 Re4 25.Rfd1 Rd5 26.f3 Re8 27.Rb1 Red8 28.Rb5 Rb5 29.ab5 Ne7 30.e4+/– Nc8 31.d5 a6 32.ba6 ba6 33.Ra1 a5 34.Rb1 Kf8 35.Nb6 Nb6 36.Rb6 Ra8 37.Rb2 a4 38.Kf2 a3 39.Ra2 Ke7 40.Ke3 Kd6 41.g4 Kc5 Black gets the initiative 42.Kd3 Kb4 43.d6?? Kb3–/+ 44.Ra1 a2 45.e5 Kb2 46.Ra2 Ra2 47.Kc4 Kc1 48.Kb5 Rh2–+ 49.d7 Rd2 50.Kc6 g6 51.f4 ½–½. Trokenheim,Marek – Persson,Boerje, corr priv, 1991.

11.Bf3 Nce7 12.d4 Ba5 13.Nd2 c6 14.g3 Nf6 15.Nc4 Bc7 16.e4 Ng6 17.Qc2 a5 18.Rad1 Qe7 19.Ba3 Qd7 20.Ne5+/– Qc8 21.Ng6 hg6 22.Bg2 Nh7 23.f4 Nf8 24.f5 gf5+= 25.Rf5 g6 26.Rf2 Qd7 27.Bb2 Rad8 28.Rdf1 Re7 29.Kh1 Ne6? 30.d5+– White gets in control 30...cd5 31.ed5 Ng7 32.Bf6 Rde8 33.Be7 Re7 34.Re2 Bd6 35.Re7 Qe7 36.Qc3 Bb4 37.Qc8 Ne8 38.d6 Bd6 39.Bd5 Qe2 40.Qc4 Qc4 41.Bc4 Nc7 42.Rf7 Kh8 43.Rf6 (43.Rf6 Bc5 44.Rg6+–) 1–0. Adam,Stefan – Maier,Albert, corr ICCF Cup8/9 V003, 1990.

11.Bf3 Nf6 12.Bc6 bc6 13.Qf3 (13.Qc2 Rb8+=) 13...Ne4 Increases the pressure on the backward pawn 14.Nc3 (14.Qg4!? Bf8 15.f3=) 14...Nd2= 15.Qg3? (better 15.Qg4 Nf1 16.Nd5=+) 15...Nf1-+ 16.Ne2?? (16.Rf1 Qd6 17.Qg4-+) 16...Ng3 17.Ng3 c5 (better 17...Qd2 18.Bd4 c5 19.Nf1-+) 18.Nh5 f6 (18...Qd3 19.Bg7 Qg6 20.Nf6 Kg7 21.Ne8 Re8 22.g3-+) 19.Rf1 Qd2 20.e4 Qb2 0-1. zomboeb – mascenic, lichess.org, 2020.

12.a3 Nf3 13.Qf3 Bd6 14.d3=.

12.a3 Bf8 13.d4 Nc4 14.Qb3 Ncb6 (14...Nb2 15.Bd5 (15.Qb2?! Rb8=; 15.Qd5?! Qd5 16.Bd5 Rab8+/-) 15...Qd7 16.Nc3+- (16.Qb2?! Qd5 17.Nc3 Qc6+=; 16.Qb7?! Rab8 17.Qc6 Qd8+/-; worse 16.Bb7 Rab8+/-)) 15.Nc3 c6 16.Rab1 Rb8 17.a4 Re6 (17...Bd6 18.a5 Nc3 19.Bc3=) 18.a5+= Nc3 19.Bc3 Nd5 20.Bd5 (20.a6 b6+=) 20...cd5= 21.Bb4 Ra6 (21...Bb4 22.Qb4 Ra6 23.Ra1=) 22.Bf8+= Kf8 23.Qa3 (23.Qd3 Rg6+=) 23...Qe7 (23...Kg8!?=) 24.Qd3 Qc7 25.h3 (25.Rfc1 Rc6 26.Rc6 bc6 27.Rb8 Qb8 28.Qh7 Qb4 29.Qh8 Ke7+/-) 25...Kg8+= 26.Rfc1 Qa5 27.Rb7 Rb6 (27...Rb7 28.Rc8) 28.Rbc7 g6 29.R7c5 Qa2 30.Qd1 Rb2 (30...Rb1 31.R5c2 Qb3 32.Qf1+=) 31.Qf3+/- R8b6 (better 31...Rb1 32.Rb1 Qb1 33.Kh2 Qe4+/-) 32.Rc7+- f6 (32...Rf2 33.Qf2 Qf2 34.Kf2 a6+-) 33.Qg4 f5 (33...Qa3 34.Qd7 Qe7 35.Qe7 Rf2 36.Qe8) 34.Qh4 (34.Qh4 Qa4 35.Qh7 Kf8 36.Qh8) 1-0. Sarabia,JC - De Prado,O, Aviles, 1991.

12.Be2 c5!? =.

12.Be2 Bd6 13.d4 Ng6 14.Nd2 Qg5 15.Nf3 Qe7 16.Qb3 Nf6 17.Bc4 (17.Qb7? Rab8 18.Qa7 Rb2–+) 17...Ne4 18.Rad1 (18.Qb7? Rab8 19.Qa7 Rb2–+) 18...Rab8 19.Rfe1 (19.g3 c6+/–) 19...h6 (19...c6 20.Re2+=) 20.Re2 Rf8 21.Nd2 Nd2 22.Red2 Qh4 (22...Nh4!? 23.Re2 Qg5+/–) 23.g3+/– Qg4 24.Rf1 (24.Be2 Qf5+/–) 24...Ne7 (24...Nh4 25.Qd1 Nf3 26.Kg2 Nh4 27.Kh1 Qf3 28.Qf3 Nf3 29.Rc2+/–) 25.e4 (25.f4 Qf5+/–) 25...c6? (better is 25...Qe4 26.Re2 Qg4=) 26.e5+– Bc7 27.Ba3 b5 28.Bf7! Rf7 29.Be7 Re8 30.Ba3 Qf5 31.d5 Bb6? 32.Kg2?? cd5 33.Qd5 Rd8?? 34.Bd6+– Re8 35.Re2 a6 36.Qc6 Rd7?? 37.Qb6+– Re6 38.Rd1 1–0. Djurisic,Dusan – Zivanovic,B (1905), 21st Belgrade Trophy, Obrenovac SRB, 2008.

12.Be2 Bd6 13.f4 Ng6 14.Nc3 Nc3 15.Bc3 Qe7 16.Bf3 c6 17.Qb3 Bc5 (17...Nh4 18.Rab1=) 18.g3 (18.f5!? Nh4 19.Bh5+/-) 18...Rad8= 19.Rae1 Bb6 20.Qb2 f6 21.Bh5 Rf8 (21...f5 22.Qb3 Kh8 23.Bg6 hg6 24.a4=) 22.Bd1 (22.d4 Qc7+=) 22...Rfe8= 23.Bb3 Kh8 24.h4 Nf8 25.g4 (25.a4 Bc5=) 25...Qd7=+ 26.Rf2 Qg4 (better 26...Re7!? 27.g5 Qg4 28.Rg2 Qh4 29.gf6 Qe1 30.Kh2 Qh4 31.Kg1 Bd4 32.fe7 Qe1 33.Kh2 Qh4 34.Kg1 Qe1 35.Kh2 Qh4 36.Kg1=) 27.Rg2+/- Qf4?? (27...Qd7 28.h5 Ne6+-) 28.Rf1 (better 28.Bf6 Qf6 29.Qf6+-) 28...Qh6? (28...Be3 29.de3 Qe3 30.Kh2+=) 29.Bf6 (29.Rf6 Ng6 30.Rf7 Rg8+-) 29...Be3? (better 29...Rd7=) 30.de3+- Qe3?? (30...Rd7 31.Qf2 c5+-) 31.Kh2 Rd7 (31...Qg1 32.Kg1 h6 33.Bg7 Kh7 34.Qc2 Rd3 35.Qd3 Re4 36.Qe4 Ng6 37.Qg6 mate) 32.Bg7 (32.Bg7 Rg7 33.Qg7 mate) 1-0. Martinez Rodriguez,E - Alvarez Garcia,NV, Asturias-chT40 Primera B, 1999.

12.Be5 Re5 13.Qb3 a5 14.a3 a4 15.Qc4 (better 15.Qb2!? Bd6 16.Qb7+/-) 15...Bd6= 16.g3 Nb6 17.Qc2 Qf6 18.Bb7 Rb8 19.Bg2 Rc5 20.Nc3 h5 21.d4 Rg5 22.Ne4 Qf5 23.Qc6 Rg6 24.Nd6 Rd6 25.Qc7 Rbd8 26.e4 Qg6 27.d5 Rc8 28.Qe7 Rd7 Black launches an attack 29.Qh4 Rc4 30.Bf3 (better 30.Rfc1!?+-) 30...Nd5+/- 31.Qh3 (31.ed5 Exploits the pin 31...Rh4) 31...Nb6 32.Rab1 Rd6 33.Rb5 Qe6 34.Qh5 (34.Rh5?! Qh3 35.Rh3 Rc3+=) 34...Qe8 35.Rg5 White prepares the advance e5 35...Rcc6 36.e5 Rh6 37.Qg4 Rcg6 38.Be4 Rg5 39.Qg5 f6 40.ef6 Rf6 41.Rd1?? (better 41.Re1 Qf8 42.Bg6+-) 41...Qe4-/+ 42.Rd8 Kh7 43.Qc5 Nc4 44.Rd1 Ne5 45.f4?? (better 45.Qe3 Qe3 46.fe3-+) 45...Nf3 46.Kf2 Nh2 47.Rd5 Ng4 48.Kg1 Rh6 (48...Qe1 49.Kg2 Ne3 50.Kf3 Nd5 51.Qc2 Rg6-+) 49.Rh5 Qe3 (49...Qe1 50.Kg2 Qe2 51.Kg1 Qd1 52.Kg2 Ne3 53.Qe3 Rh5 54.Qe4 Kh6 55.Qc6 g6-+) 50.Qe3 Ne3 51.Ra5 Nc2 52.Ra4 Rb6 53.Ra5 Rb3 54.Rh5 Kg8 55.Rg5 Ra3 56.f5 Ra5 57.g4 Kf7 58.Kf2 Ra3 59.Rg6 Nd4 60.Rd6 ½-½. Reimer,Karl - Enkrodt,Ulrich, Mehlingen PSB-ch HT2, 1999.

12.Be5 Re5 13.d4 Re8?? 14.Qb3+– a5 15.Bd5 Kh8 16.Bf7 Rf8 17.Bd5 c6 18.Bc4 b5 19.Bd3 Ra7 20.Qc2 Raf7 21.Qc6 Qe8 22.Qe8 Re8 23.Bb5 Rb8 24.a4 Rc7 25.Na3 Rc3 26.Nc4 Rc2 27.Rfc1 Rc1 28.Rc1 h6 29.Ne5 Kh7 30.h3 Bd6 31.Rc6 Bb4 32.d5 Rd8 33.e4 h5 34.Nf7 Rf8 35.Ng5 Kg8 36.d6 Rd8 37.e5 Kf8 38.Ne6 (38...Kf7 39.Nd8 Kg8 40.d7 Be7 41.Rc8 Bh4 42.g3 Bd8 43.Rd8 Kh7 44.Rc8 Kh6 45.Bd3 g6 46.Rh8 Kg7 47.d8Q Kf7 48.Qf6) 1–0. hal1958 – fire_serpent, HCL–B2138 playchess.de, 2003.

12.Be5 Re5 13.d4 Rg5 14.Qb3 Bd6 (14...Qd6 15.a3 Ba5 16.h4+/- (16.Qb7) 16...Rf5+- 1.75; 14...a5 15.a3 Bd6 16.Qb7 (16.g3 Nf6+/- 0.91) 16...Rb8+/- 0.94) 15.g3 (15.Nd2 Rb8 (15...Nb6+/- 16.Bb7 Rb8+/- 0.91) 16.Ne4 Rg6+= 0.31; 15.Qb7 a5 16.Qc6 Rb8+/- 1.03 (16...Rc8+/- 1.16)) 15...c6+= (15...Nb6 16.Bb7 Rb8+/- 0.97) 16.Bd5 (16.Nd2 Nb6+=; 16.Qb7 Nb4+= 0.59) 16...cd5 17.Qb7 h5 (17...Rb8 18.Qa6+=) 18.Nc3+/- Rb8 (18...h4 19.Rab1 (worse 19.Nd5 Rb8 20.Qc6 Rc8=) 19...hg3 20.hg3+/-) 19.Qa7 h4 20.Rab1 Rb1 (20...hg3 21.fg3 Qe8 22.Rf3+/-) 21.Rb1+= (21.Nb1?! Qe8 22.Re1 Bb4=) 21...hg3 22.hg3 (better 22.fg3 Qe8 23.Nd1+=) 22...Bg3?? (better 22...Qc8 23.Kg2 Qc3 24.Qa8 Kh7=) 23.fg3+- Qf6 24.Qb8 Kh7 25.Kg2 (25.Kg2 Rh5 26.Qf4+-) 1-0. Belov,PI - Chubukin,AN, corr I liga Nipsegorodskaya oblast RUS, 1996.

11.d3 Be6 12.Nbd2 (12.a3 Bd6=) 12...Ng4 (12...Nd5 13.a3 Nc3 14.Bc3 Bc3 15.Rb1=) 13.Ne4 Bd5 14.Nfd2 (14.a3 Be7=) 14...Nge5 15.Qc2 (15.a3 Ba5=) 15...Bd2 16.Nd2 Nb4 (16...Qd6 17.e4 Be6 18.f4+=) 17.Qc3+= Na2 18.Ra2 Ba2 19.f4 Bd5 (19...a5 20.fe5 b5 21.Ra1+/–) 20.fe5 Qg5 21.e4 Qe3 22.Rf2 Bc6 (22...Be6 23.Nc4 Qg5 24.d4+–) 23.Nf1 (23.e6 f6+–) 23...Qb6 24.Ng3 Rad8? (24...a5 25.d4 Ba4 26.Bc4+–) 25.Bh5 Re7 26.Nf5 Re6 27.Nd4 Re7 28.e6 fe6 29.Ne6!! Rdd7 30.Qb3!! h6 31.Bg6 Rf7 32.Bf7 Rf7 33.Qb6 cb6 34.Rf7 Kf7 35.Nf4 g5 36.Ne2 Bb5 37.Nc1 h5 38.Kf2 (38.Kf2 Ke7 39.Ke3+–) 1–0. Jurkowski,Marcin – Osowicki,Leszek, corr Poland, 1998.

11.d3 Qe7 12.Nd4 Ne5 13.Bg4 Nfg4 14.h3 +=.

11.d4 Nd5 12.a3 Be7 13.Nc3 =.

11.d4 Ne4 12.h3 (12.d5 Na5+=) 12...Bh5 (12...Be6=+) 13.Nfd2 (13.d5 Nb8 14.Qb3+/-) 13...Be2-/+ 14.Qe2 Qg5 (better 14...Nd2!? 15.Nd2 Nd4-/+) 15.Ne4= Re4 16.a3 Ba5 17.Bc3 Re6 18.Ba5 Qa5 19.Qd2 Qg5 20.f4 Qh4 21.d5 Rd6 22.e4 Ne7 23.Qb4 Rb6 24.Qc3 c6 25.dc6 (25.d6!? Ng6 26.f5+=) 25...Rc6=+ 26.Qe3 Qf6 27.Nd2 Qe6 28.Rab1 b6 29.Nb3 Rc4 30.Nd2 Rc2 31.Rbd1 Rac8 32.f5 Qe5 33.Nf3 (better 33.Qd3 Qc5 34.Kh1=) 33...Nf5!-+ 34.Qd3 (34.ef5 Qe3 Double attack (34...Qe3 Pinning; 34...Qe3 Deflection)) 34...Qc5 35.Kh2 (35.Nd4 Nd4 36.Qd4 Qa3 37.e5-+) 35...Ne3 36.Qd8 Qf8 37.Qf8 Kf8 38.Nd4 (38.Rg1 Nd1 39.Rd1 Ra2-+) 38...Nf1 (better 38...Rg2 39.Kh1 Nf1 40.Rf1-+) 39.Rf1 Rd2 40.Ne6 Kg8 41.Ng5 f6 42.Nf3 Re2 43.Nd4 Re4 44.Nb5 Re7 45.Nd6 Rc3 46.Ra1 (46.a4 Rd3 47.Nf5 Re5-+) 46...Ree3 (46...Rd3!? 47.Nf5 Re5 48.Nh4-+) 47.Nb5 Rb3 48.a4 a6 49.Nc7 Ra3 50.Ra3 Ra3 51.Na6 Ra4 52.Nc7 Rc4 (52...Rc4 53.Nb5 Rc5-+) 0-1. hal1958 - Walter_Vieira, playchess.de, 2003.

11.d4 Ne7 12.Nc3 Ned5 13.Qb3 c6 14.Nd5 Nd5 15.h3 Bh5 (15...Be6 16.e4 Nf4 17.Qb4 Ne2 18.Kh1=) 16.Rfc1 (16.a3 Ba5=) 16...Qe7 17.a4 a5 18.Ba3 Qf6 19.Bb4 (19.Ra2 Ba3 20.Ra3 Rab8=) 19...ab4 20.Rc5 (20.a5 Ra7=) 20...b6 21.Rd5 cd5 22.Qd5 Ra5 23.Bb5 Bf3 24.Qf3 Qf3 25.gf3 Rc8 (25...Rea8 26.Rb1+=) 26.Rb1 Rc2 27.Rb4 Kf8 28.d5 Ke7 29.Rd4 Kd6 30.e4 Ra7 (30...Rc1 31.Kg2+=) 31.f4 f6 32.Kg2 Re7 33.h4 (33.Rb4 Kc5 34.Rb3 f5+=) 33...g6+= 34.Kg3 h6 35.f3 g5 36.hg5 hg5 37.Bc6 Rh7 38.Rd1 Rhh2 39.Rg1 Rh4 40.fg5 fg5 41.Re1 Ke5 42.Bd7 Rhh2 43.Bh3 Rhd2 44.Rb1 Rb2 45.Rb2 Rb2 46.Bd7 Rb1+= 47.Bb5 Rd1 48.Be2 Rg1+= 49.Kf2 Rh1 50.Bf1+/– Rh6 51.Kg3+= Rf6 52.Bb5 Rf4 53.Bd3 Rf8 54.Bb5 Rf6 55.Bd7 Kd6 56.Bb5 Rf4 57.Bc4 Ke5+= 58.Bd3 Rf6 59.Bb5 Kd4 60.Kg4 Ke5 61.Kg3 Rf7 62.Kg4 Rf4 63.Kg3 g4 64.fg4 Re4 65.Bc6 Rd4 66.Kf3 Kf6 67.Ke3 Rg4 68.d6 Ke5 69.d7 Rd4 70.Bb5 Rd1?? 71.Bc6 Ke6= 72.Bb5 Ke7 73.Ke4 Kd8 74.Ke5 Kc7 ½–½. Melich,Jindrich (2170) – Matyska,Jiri, Praha op, 1996.

11.h3 Bh5 12.a3 Bd6 13.Nc3 a6 14.d4 h6 15.Re1 Bg6 16.Rc1 Ne4 17.Ne4 Be4 (worse is 17...Re4 18.Bd3 Re7 19.Bg6 fg6 20.Qb3 Kh8 21.d5+– (21.Qb7? Na5 22.Qa8 Qa8–+)) 18.Nd2 Bd5 19.Bf3 Bf3 20.Nf3 Qd7 21.e4 Bf4 22.Rc2 Ne7 (22...Rad8 23.d5 f5 24.Qb1+=) 23.d5 (23.g3!? Qh3 24.gf4+/–) 23...Ng6+= 24.e5 Rad8 25.g3 Qh3 26.e6 (26.Re4 c6 27.gf4 Qg4 28.Kf1 Rd5–/+ (28...cd5?! 29.Rb4=)) 26...fe6+= 27.Qd4 (27.gf4?? Nf4 28.Nh4 Rd5 29.Qd5 Nd5–+) 27...e5 28.Qc4 (28.Qe4 Rd6 29.Rc7= (29.gf4 Nf4 30.Qf4 ef4 31.Re8 Kh7 32.Ng5 hg5 33.Rc7 Qg4 34.Kf1 Rd7–+)) 28...Bg3 29.fg3 Qg3 30.Rg2 Qf3 Attacking the isolated pawn on d5 31.Rg6 Qf5 (better is 31...Qd5!? 32.Qc7 Rd7=) 32.Rg2= Rf8?? (better is 32...Rd7=) 33.d6+– (worse is 33.Re5 Qb1 34.Kh2 Rf7+–) 33...Kh8 34.dc7 (34.Qc7?! Rd7 35.Qc5 Qd3 36.Be5 Kh7+–) 34...Rc8 35.Be5 (worse is 35.Re5 Qb1 36.Kh2 Rf1+–) 35...Rce8 (35...Rg8+–) 36.Bg7 Kh7 37.Re8 Re8 38.Bc3 h5 39.Rg7 Kh6 40.Bd2 Kg7–+ 41.Qd4 Kg6 0–1. brother – jazzfan (1625), internet, 2013.

11.Qa4 Be6 12.Nc3 Nb6 13.Qd1 Qd7 14.d4 Rad8 15.Rc1 Nb4 16.a3 N4d5 17.Ne4 Na4 18.Qd2 Nb2 19.Qb2 b6 20.Bb5 Qe7? (better is 20...Ba3!? 21.Qb1 Qc8 22.Be8 Re8+=) 21.Be8+– Re8 22.Ne5 Qh4 23.Ng3 f6? (better is 23...Bd6+–) 24.Nf3 Qh6 25.e4 Nf4 26.Rc7 Bg4 (26...Re7 27.Qc3 f5 28.Re7 Be7+–) 27.Nd2 (better is 27.Ra7 Kh8 28.Qb3+– (28.Qb6 Bf3 29.Rb1 Nh3 30.Kf1 Qd2 31.gh3 Rc8–+)) 27...Bd6+/– 28.Ra7 Nd3?? (28...Ne2 29.Kh1 Bg3–+) 29.Qb3 Kh8 30.Qd3 Qg6 31.Qb5 h5 32.e5 fe5 33.de5 Bc5 34.Nde4 Bd4 35.Ng5! h4 36.Nf7 Kg8 37.Qe8 Kh7 38.Qh8 1–0. polynesia46 (1615) – kastaldi (1790), internet, 2013.

11.Nc3 Nb6 12.d4 Na5 13.Ne5 Be2 14.Qe2 f6 15.Nf3 Nac4 16.a4 a5 17.Rfc1 Kh8 18.Nb5 c6 19.Na3 Nb2 20.Qb2 Bb4 21.Nc2 Bd6 22.Nce1 Rb8 23.Nd3 Nd5 24.Rab1 Qc8 25.Qc2 Qe6 26.Nc5 Qe7 27.Nh4 Nb4 28.Qd1 g6 29.Nf3 Na2 30.Rc4 Nb4 31.Nd3 Qe4 32.Nb4 Bb4 33.Rbc1 Ba3 34.Ra1 Bb4 35.Qb3 Rbd8 36.Rac1 Rd5 37.Qc2 Qe6 38.h3 Ba3 39.Rb1 Bb4 40.Ne1 Rg5 41.Kf1 Qd5 42.Nf3 Rf5 43.Rc1 Rf3 44.gf3 Qf3 45.Rb4 ab4 46.Qc4 Re3 47.Qb4 Qh1 0–1. Blum – Schlaugat, BL 1983.

11.Nc3 Nb6 12.d4 Qd7 13.Qb3 Na5 14.Qc2 Nac4 15.Bc1 Rad8 16.a4 a5 17.Nb5 Nd6 (better is 17...Bf5 18.Qb3 Qc6=) 18.Ne5+/– (18.Nc7?! Bf3 19.Ne8 Be2 20.Nf6 gf6 21.Qe2 Na4+=) 18...Re5 19.de5 Be2 20.Qe2 Ndc4 21.f4 c6 22.Na3 Qd5 23.Nc4 Nc4 24.Rb1 b5 25.ab5 cb5 26.e4 Qd4 27.Kh1 b4 28.Bb2 Qd3 29.Qd3 Rd3 30.Rfd1?? (better is 30.Rfc1 Nb2 31.Rb2–/+) 30...Rd1 31.Rd1 Nb2 32.Rd8 a4 33.f5 a3 34.e6 fe6 35.fe6 a2 36.h3 a1Q 37.Kh2 Qf1 (better is 37...Nc4 38.Re8 Nd6–+) 38.e7 Qf4 39.Kg1 (39.g3 Qf2 40.Kh1–+) 39...Qe3 (better is 39...Qc1 40.Kh2 Qc7 41.Kh1 Qe7–+) 40.Kh2 Qf4 41.Kg1 Qe3 (better is 41...Qc1 42.Kh2 Qc7 43.Kh1 Qe7–+) 42.Kh2= Qf4 ½–½. lllllll21 – kastaldi (1840), internet, 2013.

11.d4 Bb4 12.a3 Ba5 13.Nbd2=.

11.d4 h6 12.h3 Bh5 (12...Bf5 13.Nc3=) 13.Nc3 Ncb4 (13...Bb4 14.Qb3 Bc3 15.Bc3=) 14.a3 (14.Ne5!? Be2 15.Qe2 Nc3 16.Bc3+=) 14...Nc3= 15.Bc3 Nd5 16.Bb2 c6 17.Qc2 (17.Ne5 Be2 18.Qe2 Bd6=) 17...Rc8 18.e4 (18.Rae1 Bd6=) 18...Nf4=+ 19.Bd1 (19.Rfe1=+) 19...b6 (19...c5 20.e5=+) 20.Bc1 (better 20.Re1!?=) 20...Bf3 (20...Ne6 21.Bb2 Bf3 22.Bf3 Nd4 23.Qd3 Nf3 24.Qf3-/+) 21.Bf3 Ne6 22.Bg4 Nd4 23.Qb2 (23.Qd3 Ne6 24.Qc4 Bc5-/+) 23...Rc7 (23...Rb8 24.Re1 Qf6-/+) 24.Rd1? (24.Bf4!? Bd6 25.Qd4 Bf4 26.Qd8 Rd8 27.Rad1=+) 24...c5 (24...Re4 25.Be3 c5 26.a4-+) 25.Be3 (25.e5 h5 26.Bh5 Re5 27.Bg4-/+) 25...Qf6 (better 25...Re4 26.a4 Qf6-+) 26.Bd4=+ cd4 27.Qd4 (27.Rd4? Bc5 28.Rad1 Bd4 29.Qd4 Rc1-+) 27...Qd4 28.Rd4 Bc5 (28...g6 29.Ra4=+) 29.Ra4 g6 30.Bf3 Kg7 31.Kf1 (31.Rd1 a5=+) 31...Rd8 (31...b5 32.Ra5 Bb6 33.Rb5=+) 32.Rd1 Rcd7 (32...Rd1 33.Bd1 Bd6 34.Ra6=) 33.Rd5 (33.Rd7 Rd7 34.Be2 a5=) 33...Kf6 (33...a5 34.Ke1=) 34.Ke2 (34.e5 Kg7 35.Rd7 Rd7=) 34...a5 35.Rc4 (35.e5 Kg7 36.Rd7 Rd7=) 35...Rd5=+ 36.ed5 Re8 (36...Ba3 37.Rc6 Rd6 38.Kd3=+) 37.Re4 (37.Kf1 Ba3 38.Rc6 Ke5 39.Rb6 Bc5=) 37...Re4=+ 38.Be4 Ke5 39.Kd3 (39.Bc2!?=+) 39...Ba3-/+ 40.g3 (40.Bf3 b5-/+) 40...f5 41.f4 Kd6 42.Bf3 b5 43.g4? (better 43.Kc2!? Bc5 44.Be2-/+) 43...Bc1-+ 44.h4? (44.gf5 gf5 45.Be2 Bf4 46.Kc2-+) 44...fg4 45.Bg4 Bf4 46.h5 (46.Be6 Be5 47.Kc2 a4-+) 46...gh5 47.Bh5 a4 (better 47...Kd5 48.Bf7 Kc5-+) 48.Bf3 (48.Be8 Kc5 49.Kc2-+) 48...Be5 49.Kc2 b4 50.Kb1 b3 51.Kc1 (51.Bd1 Kd5 52.Bf3 Kc4 53.Be2 Kc3 54.Bf1 a3 55.Kc1 a2 56.Kd1 a1Q 57.Ke2 b2 58.Bh3 b1Q 59.Kf3 Qd3 60.Kg4 Qad1 61.Kh4 Qd8) 51...a3 52.Kb1 (52.Bd1 a2 53.Kd2 a1Q 54.Bf3 Qd4 55.Ke1 b2 56.Ke2 b1Q 57.Be4 Qbd1) 52...a2 53.Kc1 a1Q 54.Kd2 Qc3 (54...Qc3 55.Ke2 Bd4 56.Bh1 Qe3 57.Kd1 Bc3 58.Be4 Qd2) 0-1. Enkhtuul,A (2225) - Berend,E (2325), Women's Speed Chess Q3, 2021.

11.h3 Bh5 12.Nd4 Be2 13.Ne2 Ne5 14.Be5 Re5 15.Nbc3 c6 16.Nd5 Qd5 17.Nc3 Qd7 18.d4 Rg5 19.Qf3 Re8 20.Rab1 Rg6 21.Rfc1 Ree6 22.Ne4 Qd5 23.Nd2 Qd7 24.Ne4 Qd5 25.Nd2 Qa5 (25...Qd7 26.Nc4 Rgf6 27.Qh5+=) 26.Ne4 (better 26.Rb7!? Ref6 27.Qd1+/-) 26...b6 27.Nc3 Rgf6 28.Qe2 Bb4 29.Qb2?? (better 29.Rb4 Qb4 30.Nd5+=) 29...Ba3-+ 30.Qb3 Bc1 31.Rc1 h6 32.Ne2 Rf5 33.Ng3 Rb5 34.Qc2 Qa3 35.Rb1 Rb1 36.Qb1 g6 37.Ne2 Qd6 38.Nf4 Rf6 39.Nd3 Kg7 40.g3 c5 41.dc5 bc5 42.Qc2 Qd5 43.Nc5 Rc6 44.Qb2 Kh7 45.Nb3 Qf5 (better 45...Qd1!? 46.Kg2 Rc2-+) 46.Nd4-/+ Qf6 47.Qb1 Rb6 48.Qc1 ½-½. Hal1958 – Glomp, playchess.de, 2005.