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Literatur_Sokolski_Opening - compiled by Peter Markus Steiner (in German)


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    (All annotations below by Fritz)
    (Games' source: Marek's 1.b4 database)
    (1) Nguyen Thai Binh (2305) – Nguyen Duc Hoa
    ch–VIE, Dong Thap VIE, 2003
    1.b4 a5 2.b5 c6 3.c4 d5 4.bc6 bc6 5.cd5 cd5 6.Nf3 e6N 7.e3 Bd6 8.Bb2 
       (8.Ba3 Ne7 (8...Nf6= 9.Bd6 Qd6 10.Nc3 0–0 11.Nb5 Qe7 12.Rc1 Nbd7 
       13.Nc7 Ra7=) 9.Bb5 Bd7 10.Bd6 Bb5 11.Nc3 Qd6 12.Nb5 Qd7 
       13.Rb1 Nbc6=; 
       8.d4 Ba6 (8...Nf6 9.Ba3 0–0 10.Bd6 Qd6 11.Nc3 Ba6 12.Ba6 Na6 13.Rb1 
       Rfc8=; 8...Nc6 9.Ba3 Nb4 10.Nc3 Nf6 11.Nb5 Be7 12.Be2 Rb8 
       13.Nc3 Bd7=; 8...Na6 9.Bd2 Bd7 10.Nc3 Nf6 11.Nb5 Be7 
       12.Qa4 Nb4 13.a3 Nc6=) 9.Ba6 Na6 10.0–0 Nb4 11.Nc3 Nf6 
       12.a3 Nc6 13.Qa4 Rc8+=; 
       8.Nc3 Nf6 (8...Nh6 9.Bb2 0–0 10.Nb5 Be7 11.Rc1 Nd7 12.Nbd4 Qb6 13.Qb3 
       Qb3=) 9.Nb5 Bb4 10.a3 Be7 11.Bb2 0–0 12.Be2 Nbd7 13.0–0 
    8...Nf6 9.Bb5 
       (9.Nc3 0–0= 10.Nb5 Bc5 11.Rc1 Nbd7 12.Bd4 Bd4 13.Nfd4 Bb7=; 
       9.Na3 0–0 10.Nb5 Be7 11.Be2 Ba6 12.Rc1 Nbd7 13.0–0 Rb8=) 
    9...Bd7 10.Nc3 0–0 11.a4 
       (11.Rb1 e5 12.d4 e4 13.Ne5 Bb5=) 
       (11...e5 12.d4 (12.d3 Nc6 13.0–0 Rc8+=) 12...e4 13.Ne5= 
    12.Nb5= Nc6 
       (12...Bb4 13.Rc1= Nbd7=) 
       (13.Bf6 gf6 14.Rc1 Rc8+=) 
       (13...e5 14.Rc1 Ra6 15.d4=) 
    14.Rc1+= Nb4 15.Ne5 
       (15.Bf6 gf6 16.d3 Rb8+=) 
       (15...Ra6 16.Qf3+=) 
    16.d3+= f6 
       (better is 16...Nc5!? 17.Nd6 Qd6=) 
    17.Nc6+/– Nc6 18.Rc6 
       (worse is 18.de4 Nb4+=; 
       worse is 18.Nd6 Nf2 19.Rf2 Qd6+=) 
    18...Qd7 19.Qc2 
       (19.Nd6?! Nd6 20.Rc1 e5=) 
    19...Rac8 20.Rc1 Bc5 1–0
    (2) Vuong Quynh Huong – Tran T My,Duyen
    VIE–ch U11 Girls, 2005
    1.b4 a6 2.Bb2 d6 3.a3 e5 4.e3 Nc6 5.d4 Bf5 
       (5...e4 6.c4 
         A) 6...Nf6 7.Nc3 Qe7 8.Nd5 Nd5 9.cd5 Nd8 10.Rc1+=;
         B) 6...Qe7 7.Nd2 (7.d5 Ne5 8.Nd2 Nf6 9.Qc2 Bf5 10.Ngf3+=
          ; 7.Nc3 Nf6 8.Nd5 Nd5 9.cd5 Nd8 10.Rc1+=; 7.Ne2) 
          7...Nf6 8.Ne2 d5 9.Nc3 dc4 10.Bc4+=;
         C) 6...Be7 7.Ne2 (7.Nc3) 7...f5 8.Nf4 Nf6 9.Be2 Bd7 10.d5+= 
         D) 6...Qh4 7.Qc2 (7.Ne2 Nf6 8.Nbc3 Ne7 9.Ng3 Nf5 10.Qa4=
          ; 7.Nc3 Nf6 8.Nge2 Ne7 9.Ng3 Nf5 10.Qa4=) 7...Nf6 
          8.Nc3 Ne7 9.Nge2 c6 10.Ng3+=) 
       (6.d5 Nce7 7.Nc3 (7.Nf3 Nf6 8.Bc4 Nc8 9.Nc3 Nb6 10.Be2=; 
       7.Bd3 e4 8.Bc4 c6 9.Nc3 Nf6 10.Nge2=; 7.c4 Ng6 8.Nf3 Nf6 
       9.Bd3 Bd3 10.Qd3+=; 7.Ne2 Nf6 8.c4 c6 9.dc6 Nc6 10.Ng3=) 
       7...Nf6 8.Nf3 a5 9.b5 Bg4 10.Be2+=; 
       6.Nf3 Nf6 7.de5 Ne5 8.Nbd2 Qe7 9.Ne5 de5 10.Qf3+=) 
    6...de5 7.Nc3 
       (7.Nd2!?= Qf6 8.Ngf3 Nge7 9.Bd3 0–0–0 10.Qe2=) 
    7...Qd1+= 8.Kd1 
       (8.Rd1 Bc2 9.Rd2 Bf5 10.Bc4+=) 
       (8...Rd8 9.Kc1 Nf6 10.Bc4+=) 
       (9.b5 ab5 10.Bb5+=) 
       (9...0–0–0 10.Ke2–/+) 
    10.Ke2 e4 11.Bc4 Be7 
       (11...Ne5 12.Bb3–/+) 
       (12.Rd1 Rd1 13.Kd1 a5+=) 
       (12...Ne5 13.Ba2 Bg4 14.Kf1 Bh3 15.gh3–/+) 
    13.Ke1 Ne5 14.Be2 Be2 15.Ne2 Nc4 16.Bd4 
       (16.Ra2 Nd5 17.Bg7 Rg8–/+) 
       (16...Na3 17.Ra2–/+) 
    17...ef3 18.gf3 Nd5 
       (18...b6 19.Ra2–/+) 
       (19.Rg1 g6 20.Kf2 Rfe8–/+) 
    19...Nde3 20.Rc1 Bh4 21.Nf2 Bg5 22.Rg1 Bh6 
       (better is 22...Na3 23.Rg5 Nec2 24.Kf1 Nd4 (24...Rd4?! 25.Nd4 Nd4 26.Rd5=) 
       25.Nd4 Rd4 26.Rc7 Rb4–+) 
       (23.c3 f5+=) 
       (better is 23...Na3 24.c3 Nec2 25.Kf2 Bc1 26.Rc1 f5–+) 
    24.f4+= Rfe8 25.e5 Nf5 26.c3 Nd4 
       (better is 26...Na3!? 27.Nf2 Bg7–/+) 
    27.cd4= b5 28.a4 
       (28.Ng5 Bf8 29.Kf2 Be7=) 
       (better is 28...Bf8!? 29.Ng5 Bb4 30.Kf2 Ba3–/+) 
    29.ab5 cb5 30.Ra1 Ra8 
       (30...f6 31.Ra6 fe5 32.fe5 Bd2 33.Kf2 Be3 34.Kg3 Bd4 35.Nd4 Rd4+=) 
       (31.Nf2 Bf8 32.Nd3 Ne3+=) 
       (31...Bf8 32.Ke2 Red8 33.d5–/+) 
       (better is 32.Kd2 Rec8 33.Kd3+/–) 
    32...Bf8–/+ 33.Re2 
       (33.Ke2!? Rec8 34.Rc1 Bb4 35.Ke3 Rc3 36.Rc3 Bc3 37.Kd3+=) 
    33...Nf5 34.Nd5? 
       (better is 34.Kf2!?–/+) 
    34...Red8–+ 35.Nf6 Kh8 
       (35...Kg7 36.d5 Bb4 37.Kd1–+) 
       (better is 36.d5 Bb4 37.Kd1–/+) 
    36...Bb4 37.Kf1 Rd4 
       (37...Nd4?! 38.Nf7 Kg7 39.Nd8 Rd8 40.Ra2=) 
       (38.Nf7 Kg7 39.Ng5 Rf4 40.Kg2 Nd4–/+) 
       (38...Nh4!? 39.Rg5 Rf4 40.Rf2–+) 
    39.Kg2 Rg1 40.Kg1 Bc5 41.Kf1 Be3 42.Ng4 
       (42.Ng5 Kg7 43.Nd5 Bc1–/+) 
    42...Bf4 43.Nhf6 Rd8 
       (better is 43...a5!?–+) 
    44.Ra2 Ra8 45.Nd5?? 
       (45.Re2 a5 46.Nd5–+) 
    45...Bg5 46.Nc7 Rc8 47.Na6 Rc4 48.Nf2 Ra4 49.Ra4 ba4 50.Ke1? 
       (better is 50.Nd3–+) 
    50...a3 51.Nb4 Nd4 
       (51...Bh4 52.Kf1 Ne3 53.Ke2 Bf2 54.Kf2 Ng4 55.Ke2 Nh2 56.Kd3–+) 
       (52.Nfd3 Nc6!–+) 
    52...Nf3 53.Ke2 Nh2 
       (53...Ne5 54.Nc3–+) 
       (54.Nc3 f5–+) 
       (better is 54...Bc1!? 55.Kd3–+) 
    55.Nc3 Ng4 56.Na2 Ne5 57.Nc3 f5 58.Nd1 f4 59.Nd4 Bf6 60.Nf2 g5 61.Nh3 
       (61.Nf3 Kg7 62.Ne5 Be5 63.Kf3–+) 
       (better is 61...Kh7–+) 
    62.Ne6–/+ Kg6 63.Nef4 gf4 64.Nf4 Kf5 65.Nd5 Bg5 66.Ne3 Ke4 67.Ng2 Nd3 
    68.Ne1 Nf4 69.Kf2 Bh4 70.Kf1 Nd5 ½–½
    (3) Bui Dac Khuong – Nguyen Viet Chung
    VIE–ch U15, 2004
    1.b4 c6 2.Bb2 d5 3.a3 a5 4.d3 
       (4.b5 Nf6=) 
    4...Qb6 5.Qd2 e6 6.c3 d4 
       (6...Nf6 7.e3+=) 
    7.ba5= dc3 8.ab6+= cd2 9.Nd2 Nd7 10.Nc4 Ra6 11.a4 Nb6 12.Nd6 Bd6 13.Bg7 f6 
       (better is 13...Be5! 14.Be5 f6+=) 
    14.Bh8+/– Na4 15.f3 
       (better is 15.Kd2!?+/–) 
    15...Kf7 16.e4 Ne7 17.d4 Bb4 18.Kf2 Bc3 19.Ra2 Bd4 20.Kg3 
       (20.Ke1 Bc3 21.Kd1 Nb2 22.Rb2 Ra1 23.Kc2 Bb2 24.Kb2 Rf1–+) 
    20...Ra5 21.Ne2 
       (21.e5 Be5 22.f4 Bc7–+) 
    21...Rg5 22.Kh3 Rh5 
       (better is 22...Nc3 23.Nd4 Na2–+) 
    23.Kg4= Rg5 24.Kh3 Bf2 
       (24...Nc3 25.Nd4 Na2 26.Bc4–+) 
       (25.g4 b5 26.Nf4 e5 27.Rf2 ef4–+) 
       (25...b5 26.Kg2 Bb6 27.Bf6 Kf6 28.f4–+) 
       (26.e5 Re5 27.f4–+) 
    26...Rg8–+ 27.Bf6 Kf6 28.e5 Kf7 29.Nc3 Bd4 30.Ne4 Nbd5 31.Bc4 
       (31.Nd6 Kg7–/+) 
       (31...Nf5 32.Be2–+) 
       (32.Nd6 Kg7 33.Rd1–+) 
       (better is 32...Rg6!? 33.Nd6 Kg7–+) 
    33.Nd6–/+ Kg7 
    34.Nb5= Bb7 
       (35.Nd4 cd4 36.Rd1 Kf8 37.Rd4 Nf5=) 
    35...Rb8+= 36.Rd1 
       (better is 36.Bd5!? Bd5 37.Nd4 Bh1 38.Ne6 Kf7 39.Nc5+/–) 
    36...Nc6+= 37.Ra4 Ne3 38.Rd3 Line
    (4) Nguyen Hoang Ha – To Ngoc Minh
    VIE–ch U13 Dong Thap, 1999
    1.b4 c6 2.Bb2 Nf6 3.a3 e5 
       (3...d6 4.Bf6 ef6 5.e3=) 
       (better is 4.Be5!? d5 5.e3+=) 
    4...d5+= 5.Nf3 e4 6.g3?? 
       (6.Nd4 Bd6+=) 
       (better is 6...ef3 7.e3 Bd6–+) 
       (better is 7.Nd4–/+) 
       (7...Bd7 8.Nd4 c5 9.bc5 Bc5+=) 
    (5) Nguyen Tran Quang,Minh – Dang The Nam
    VIE–chT, 2003
    1.b4 d5 2.a3 e6 3.d4 b6 4.Bf4 Nf6 5.e3 c5 6.c3 Bd6 
       (6...Be7 7.Nf3=) 
    7.Bb5+= Bd7 8.Bd6 Bb5 9.bc5 bc5 10.Bc5 Ne4 11.a4 Bc4 12.Ba3 Qg5 13.Qf3 Bd3 
       (13...Nc6 14.Nh3 Qh4 15.Nd2 Nd2 16.Kd2=) 
    14.Nh3 Qh4 15.Nf4 Bb1 
    16.Rb1+/– Nc3? 
       (better is 16...Nc6+/–) 
    17.Rc1+– Nd7 18.Rc3 Rb8 
       (18...Qf6 19.Rc6 Qf5 20.Qg3+–) 
    19.0–0 Nb6 
       (19...a5 20.Bd6 Rd8 21.Rfc1+–) 
    20.Rc7 Nd7 21.Rfc1 Qd8 22.h3 
       (22.Qh3 Nf8 23.Qh5 Qf6 24.Rc8 Rc8 25.Rc8 Kd7 26.Rf8 Rf8 27.Bf8 Ke8+–) 
       (22...Rb1 23.Rb1 Qc7+–) 
    23.Nd5! ed5 
       (23...f5 24.Qg3 f4 25.Qg4+–) 
       (24.Qd5 Qc7 25.Rc7 Rb1 26.Kh2 Rh1 27.Kh1 Nb6 28.Qf7 Kd8 29.Qe7) 
    (6) Bui Dac Khuong – Dinh Giang Nam
    VIE–ch U15 Vung Tau, 2004
    1.b4 d5 2.Bb2 e6 3.a3 f5 4.d3 Nf6 5.c4 c6 
       (5...dc4 6.dc4 Qd1 7.Kd1+=) 
    6.Nd2= Be7 7.Ngf3 0–0 8.g3 
       (8.e3 a5 9.Bc3 ab4 10.ab4 Ra1 11.Qa1 dc4 12.dc4 c5=) 
       (8...a5 9.b5+=) 
    9.Ng5 Nb8 10.Nb3 f4 
       (10...Ng4!? 11.Nf3 Bf6 12.Bf6 Qf6=) 
    11.Nd4 Qd6? 
       (11...fg3 12.hg3 dc4 13.dc4+/–) 
       (12.c5 Qd7 13.Nde6 Re8+–) 
       (better is 12...dc4 13.Be6 Be6 14.Nge6 Qd5+/–) 
    13.c5+– Qc7 14.Nde6 Be6 15.Be6 
       (better is 15.Ne6!? Qc8+–) 
    15...Kh8 16.Nf7 Rf7 17.Bf7 Nbd7 18.Be6 Nf8 19.Bh3 Ng6 
       (19...b6 20.gf4 ef4 21.cb6 ab6 22.Rc1+/–) 
    20.Qd2 d4 
       (20...b6 21.cb6 ab6 22.Bf5+–) 
    21.Bf5 Nd5 22.Bg6 hg6 Black gets the initiative 23.gf4 Nf4 24.e3 de3 
    25.fe3 Bh4 26.Kd1 Nd3 27.Kc2 
       (27.Qd3 Decoy theme: d3 27...Rd8 A pinning theme) 
    27...Rd8 28.Qg2 Qf7 29.Rhf1?? 
       (better is 29.Bc3+/–) 
    29...Qc4–/+ 30.Bc3 
       (30.Kb1 Ne1 31.Re1 Be1–/+) 
    (7) Phan Dan Huyen – Nguyen Thi Hanh
    VIE–ch (Women), 2002
    1.b4 d5 2.Bb2 e6 3.e3 Nf6 4.b5 Be7 5.Nf3 0–0 6.Be2 c5 7.0–0 Nbd7 8.c4 b6 
    9.d4 Bb7 10.Nc3 Rc8 11.Ne5 Qc7 12.cd5 
       (12.Nd7 Qd7 13.dc5 Rc5 14.cd5 Rd8=) 
       (12...ed5?! 13.Nd7 Qd7 14.Qa4=; 
       12...Nd5?! 13.Nd7 Qd7 14.dc5 bc5 15.e4=; 
       12...Bd5?! 13.Nd7 Qd7 14.Nd5 Nd5 15.dc5 bc5 16.Bc4=) 
    13.de5 Nd5 14.Bc4 Rfd8 15.Qg4 Nc3 16.Bc3 Bd5 17.Be2 Qb7 18.f4 Be4 19.Bf3 
    Rd3 Black is in command 20.f5 
       (20.Rac1 Re3 21.f5 ef5 22.Be4 Qe4 (22...fg4? 23.Bb7 Rd8 24.Rf4+–; 
       22...fe4 23.Qf4 Re2 24.Qf7 Kh8 25.e6+–; 22...Re4?! 23.Qf5 Rf8 
       24.Rcd1=) 23.Qf5 Qf5 24.Rf5 Rd8–/+) 
       (20...Bf3 21.Rf3 Rc3–/+) 
    21.Qf5–/+ Bf5 
       (21...Rc3?? 22.Be4 Qe4 23.Qe4+–) 
    22.Bb7 Rc7 23.Bc6 Bd7 
       (23...Rc3?! 24.Rf5 g6 25.Rf3+=; 
       23...Re3?! 24.Rf5 Rc3 25.Bd5=) 
    24.e6 Be6 
       (24...Rc3 25.ed7 (worse is 25.Bd7 Re3 26.ef7 Kf8+=) 25...Kf8 26.Rad1+/–; 
       worse is 24...Bc6 25.ef7 Kf8 26.Be5–/+) 
    25.Be5 Rc8 26.e4 f6 27.Bg3 Bd6 28.Bf2 Be5 29.Rad1 Ra3 30.Bd7 Bd7 31.Rd7 
    Ra2 32.Rfd1 Rc7 33.R7d2 Rd2 34.Rd2 Kf7 35.Kf1 Ke6 
       (35...Bh2?! 36.g3–+) 
    36.g3 Rd7 37.Ra2 Bc3 38.Ra4 Bb4 39.Be1? 
       (39.Ke2 Ke5–+) 
       (better is 39...Rd1–+) 
    40.Ke1 Rd4 41.Ra7 Rb4 42.Rg7 Ke5 43.Rh7 Ke4 
       (better is 43...Re4 44.Kd2 Rb4–/+) 
       (better is 44.Rh4 Kd3 45.Rb4 cb4 46.Kd1+/–) 
       (44...Kf5 45.Kd1 Rb5–/+) 
    (8) Le Phi Long – Nguyen Ngoc Nam
    VIE–chT Vung Tau, 2000
    1.b4 d5 2.Bb2 e6 3.Nf3 Nf6 4.a3 c5 5.bc5 Bc5 6.e3 0–0 7.Be2 Nc6 8.0–0 d4 
    9.ed4 Nd4 10.Nd4 Bd4 11.c3 
       (11.Bd4 Qd4 12.c3 Qb6=) 
       (11...Bc5 12.d4 Bd6 13.Nd2+=) 
    12.d4= Bd7 13.Nd2 Rc8 
       (13...Bc6 14.Re1=) 
    14.Re1 Bc6 15.Nc4 Bd5 16.Ne5 Ba5 Exerts pressure on the backward pawn 
       (better is 17.Rc1!?+=) 
    17...Qb6–/+ 18.Rab1 Be4 
    19.Nd7+= Bd3 20.Nb6 ab6 
       (worse is 20...Bb1 21.Nc8 Rc8 22.Rb1=) 
    21.Bd3 Bc3 22.Red1 Nd5 
       (22...Rfd8 23.h3–/+) 
       (23.Be4 Bb2 24.Bd5 Ba3+=) 
       (23...Rfd8 24.Bb5–/+) 
    24.Be2 Bb2 25.Rb2 Rc3 26.a4 Rfc8 27.Rdd2 
       (27.Bb5 Kf7+=) 
    27...Ra3 28.Bb5 
       (28.Kg2 Rc1+=) 
    28...Kf7–/+ 29.Re2 
       (29.Rbc2 Rc2 30.Rc2 Nc3–/+) 
       (29...Rd8 30.Re1–/+) 
       (30.Kg2 f4 31.Re4 g5–/+) 
    30...Nc3–/+ 31.Rb4 Nd5 
       (31...Nb5!? 32.ab5 Rc2–/+) 
    32.Rb2+= Rac3 
       (32...Re7 33.Rc2+=) 
    33.Rbe2= Attacking the backward pawn on e6 33...Re7 34.Re5 Kf6 35.Bf1 
       (35.Kf1 g5+=) 
    35...Nc7 36.Bg2 
       (36.R5e3 Rc6+=) 
       (36...Rd7 37.d5 Rc5 38.f4 ed5 39.Rf5 Kf5 40.Bh3 Kg6 41.Bd7+=) 
    37.Bb7 Rd4 38.Bc6 Rc4 
       (38...Rd6 39.Bb5–/+) 
    39.Bb5 Rb4 40.Bc6 g5 41.Kg2 
       (41.h3 Na6 42.Rb5 Rc7–/+) 
       (41...Na6 42.Rb5–/+) 
       (42.h3 Rc4 43.Bb5 Rd4–/+) 
    42...ba5 43.Ra5 Rc4 44.Bb7 Rd7 45.Rae5 Rd6 46.Kf1 Rc2 47.R5e2 Re2 48.Re2 
    Rb6 49.Bf3 Rb1 
       (49...e5 50.Rd2–+) 
    50.Kg2 Rc1 
       (50...e5 51.Rd2–+) 
    51.Rd2–/+ Ke7 52.Bb7 Nb5 
       (52...e5 53.h3–+) 
    53.Ba6 Nd6 54.Bd3 
       (54.f4 h6–/+) 
    54...Rc3 55.Bb1 Ra3 
       (55...g4 56.h3 h5 57.Ra2–+) 
       (56.f4 h6–/+) 
    56...Ra5 57.Rb8 Rb5 58.Rb5 Nb5 59.Kf3 h6 60.h3 Kd6 61.Ke3 Kc5 62.Ba2 e5 
    63.Be6 Nd6 64.f3 Kb5 65.f4 ef4 
       (65...gf4 66.gf4 e4 67.Bf5 Nf5 68.Ke4 Ne7=) 
    66.gf4= Kc5 67.fg5 hg5 68.Bf5?? 
       (better is 68.Kf3=) 
    68...Nf5–+ 69.Kf3 
       (69.Ke4 Nh4–+) 
    69...Nh6 70.Ke4 Kd6 
       (70...Kd6 71.Kd4 Nf5 72.Ke4 Nh4–+) 
    (9) Phan Dan Huyen – Nguyen Ngan Binh
    VIE–ch (Women), 2002
    1.b4 d5 2.Bb2 e6 3.Nf3 Nf6 4.a3 c5 5.e3 cb4 6.Bb5 
       (6.Be2 Nc6+=) 
    6...Bd7 7.Qe2 
       (7.Bd7 Nbd7 8.ab4 Bb4–/+) 
    7...a6 8.Bd7 
       (8.Bd3 Nc6–/+) 
    8...Nbd7 9.0–0 Be7 
       (9...ba3 10.Na3 b5 11.d3–/+) 
    10.ab4 Bb4 11.c4 
       (11.Na3 0–0–/+) 
    11...0–0 12.Nc3 
       (12.cd5 Nd5 13.e4 Nf4–/+) 
       (12...dc4 13.Qc4 Be7 14.Qe2–/+) 
    13.cd5 Nfd5 
       (13...Nbd5 14.Nd5 Nd5 15.Bd4–/+) 
       (14.Nd5 Nd5 15.e4 Nf4–/+) 
       (14...a5 15.Rfc1–/+) 
    15.Bd4+= Nb4 16.Rfc1 Nc6 
       (16...Nd7 17.Bc3+=) 
       (17.Rcb1 Nd4 18.Nd4 Bd6+=) 
    17...Qd5–/+ 18.Nc3 
       (18.d3 e5 19.Ba3 Ba3 20.Ra3–/+) 
       (18...Qh5 19.Ba3–/+) 
       (19.Ne4 f5 20.Nc5 Bc5 21.Rc5 Nd7+=) 
       (19...Qd7 20.Ba3+=) 
    20.d5 ed5 21.Nd5 Bf6 
       (21...Bd6 22.Qc2+=) 
    22.Nf6= Nf6 23.Rd1 Qe7 24.Qc2 
       (24.Ba3!? Nb4 25.Qb2=) 
    24...Rfd8+= 25.Rdb1 
       (25.Rd8 Rd8 26.Nd4 Rc8–/+) 
       (25...Nd5 26.Nd4 Nd4 27.Bd4–/+) 
       (26.Ng5 g6+=) 
       (26...Rad8 27.Bd4–/+) 
       (27.Ng5 Na7 28.Rc4 Rc4 29.Qc4 Ne8+=) 
       (27...Rcc7 28.Qf5–/+) 
    28.Rf4+= Ne8 
       (28...Ne8 29.Ne5 Rd5 30.Nf7 Qe6+=) 
    Line +=
    (10) Nguyen Tran Quang,Minh – Le Thanh Minh
    VIE–ch U20 Dong Thap, 1999
    1.b4 d5 2.Bb2 Qd6 3.a3 e5 4.e3 Nf6 5.Nf3 Nbd7 6.d4 e4 7.Nfd2 Be7 8.c4 c6 9.Nc3 0–0 
    10.b5N Rd8 11.a4 Nf8 12.a5 Bd7 13.Be2 Ng6 14.Ba3 Qe6 15.Be7 Ne7 16.Na4 Qf5 
    17.Nc5 Bc8 
       (17...Qg6!? 18.g3 b6 19.Nd7 Nd7=) 
    18.bc6+= bc6 19.Nf1 Qg5 20.Ng3 Nd7 21.Nd7 Bd7 22.Qd2 Rab8 23.0–0 g6 24.a6 
    h5 25.Qa5 Nf5 26.Nf5 Bf5 27.Rfb1 Bh3 28.Bf1 h4 
       (28...Rb1 29.Rb1 h4 30.Kh1+/–) 
       (29.Rb8 Rb8 30.Qc7 Rb2+/–) 
    29...Be6 30.Rb7 Qf6 31.Kg1 dc4 32.Qc5 h3 33.Qa7 
       (33.Ra7 Rb2 34.f4 ef3–+) 
    33...Ra8 34.Qb6 hg2 35.Be2 
       (35.Bg2 Qg5 36.Qc7 Bd5+/–) 
    35...Bd5 36.a7 Qd6 37.Rb1 Kg7 38.Rb8 Rdb8?? 
       (38...c3 39.Rd8 Rd8 40.Kg2 Rh8=) 
       (39.Qb8 Rb8 40.ab8Q Qb8 41.Rb8+–; 
       39.ab8N Ra2 40.Re1 c3=) 
    (11) Nguyen Tran Quang,Minh – Le Dinh,Tuan
    VIE–chT Hue, 1999
    1.b4 d5 2.Bb2 Nf6 3.a3 Bf5 4.e3 Nbd7 5.d4 e6 6.Nf3 Be7 7.c4 0–0N 
    8.Nc3 dc4 9.Bc4 c6 10.0–0 b5 11.Be2 a5 12.Qb3 Qb8 13.Nd2 Rc8 14.Bf3 Bg4 
    15.h3 Bf3 16.Nf3 ab4 17.ab4 Nd5 18.Ra8 Qa8 19.Ra1 Qb8 20.Na2 Qd6 21.e4 
    N5b6 22.Bc3 Ra8 23.Rd1 Qf4 24.Re1 Nc4 25.Nc1 Qc7 26.Nd3 Ndb6 27.Qc2 h6 
    28.Re2 Ra3 29.Be1 Ra1 30.g3 Bd6 31.Kg2 Qa7 32.e5 Be7 33.Nf4 Nd5 34.Nh5 g6 
    35.Nf4 Nf4 
       (35...Bb4 36.Nd5 Be1 37.Nf6 Kg7 38.Re1 Re1 39.Ne1 Qd4 40.Nf3+/–; 
       35...Nb4?! 36.Bb4 Bb4 37.Ne6+=) 
    36.gf4 Qd7 37.Bc3 Ra3 38.Be1 Qd5 39.Qe4 Qe4 40.Re4 Ra2 41.Kf1 Ra4 42.Nd2 
    Nd2 43.Bd2 Ra2 
       (better is 43...Bb4!? 44.Bb4 Rb4–+) 
    44.Re2–/+ Kg7 45.Be1 Ra1 46.Rb2 Rd1 47.Ke2 Rd4 48.Bd2 Rc4 49.Kd3 g5 50.Rc2 
    Rc2 51.Kc2 Kg6 52.Kd3 c5 53.fg5 hg5 54.bc5 Bc5 55.f4 gf4 56.Bf4 Kf5 
    57.Bg3 Bf8 58.Kc3 Ke4 59.Kb3 Bc5 60.Kc3 Bd4 61.Kb4 Be5 62.Be1 f5 0–1
    (12) Bui Dac Khuong – Tran Nguyen Bao
    VIE–chT, 2003
    1.b4 d5 2.Bb2 Nf6 3.e3 e6 4.a3 b6 5.Nf3 Bb7 6.c4 c5 7.bc5 bc5 8.Be2 Be7 
    9.0–0 Qb6 
       (9...0–0 10.cd5 ed5 11.Qc2=) 
       (10.Nc3 0–0+=) 
    10...Nbd7 11.d4 Rc8 12.Nbd2 Qc7 13.cd5 Bd5 14.Rfc1 Ba8 15.Nb3 Bf3 16.Bf3 
    c4 17.Nd2 Nb6 18.Be2 Nfd5 19.Bc4 Bg5 
       (better is 19...0–0!?+/–) 
    20.Bb5+– Kd8 21.Qc7 
       (21.Qd3 Qb7+–) 
    21...Rc7 22.Rc7 Kc7 23.Rc1 Kb8 24.Nf3 Bh6 25.Kf1 Rd8 26.a4 Nb4 27.Ba3 
       (27...a6 28.Bb4 ab5 29.ab5+–) 
    28.Ne5 f6 29.Nf7 Rc8 30.Rc8 
       (30.Nh6?! Rc1 31.Bc1 gh6+–) 
    30...Kc8 31.Nh6 
       (31.e4 Bf4+–) 
    31...Nc2 32.Bc5 gh6 33.Ba7 Nc7 34.Bc5 f5 
       (34...Nb5 35.ab5 Na1 36.e4+–) 
    35.Bc4 Nd5 36.Bd5 ed5 37.Ke2 Na1 38.Kd1 Nb3 39.Bb4 1–0
    (13) Dao,Thien Bao – Nguyen Quoc,Phap (1605)
    Hanoi VIE, Team Men Ch, 2012
    1.b4 d5 2.Bb2 Nf6 3.e3 e6 4.a3 Be7 5.Nf3 0–0 6.c4 c6 7.Qc2 Nbd7 8.Nc3N c5 
       (8...a5 9.b5=) 
       (9.Be2 cb4 10.ab4 Bb4=) 
    9...ed5+= 10.bc5 
       (10.Be2 cb4 11.ab4 Bb4=) 
    10...Nc5= 11.Be2 Qc7 
       (11...Bd7 12.Ne5=) 
       (12.Rc1 Qb6=) 
    12...Qb6= 13.Bd4 a6 14.Nc3 Qb3 15.Bd1 
       (15.Qb3 Nb3 16.Bf6 Bf6=) 
    15...Qc2 16.Bc2 Be6 
       (16...b5 17.Be5=) 
    17.a4 Rac8 18.Rb1 Rc7 19.Be5 Rc6 
    20.Nd4+= Rcc8 21.Nf5 Bf5 
       (better is 21...Rfe8!?+/–) 
    22.Bf5+– Rcd8 
       (22...Rc6 23.d4 Nd3 24.Bd3 Rc3 25.Ke2+–) 
       (23.d4 Nce4 24.Rb7 Rfe8 25.Ne4 Ne4+–) 
       (better is 23...Rde8+/–) 
       (better is 24.Bc8 Rc8 25.Ba5+–) 
       (24...Rc7 25.d4 Ncd7 26.Ne2–+) 
       (25.Bc8 Rc8 26.Be5 Ncd7 27.Bf6 Nf6 28.Rb7 Bd8+–) 
       (better is 25...Rc7 26.a5 Nce4 27.Ne4 Ne4–+) 
       (26.Bc8 Rc8 27.Rb7 Nd2+–) 
       (better is 26...Ra8+–) 
    27.Rd1 Nde4 
       (27...Bb4 28.Bc8 (28.Rb4?! Rc7 29.Rb6 d4 30.ed4 Rc3 31.Rf6 Rd3+=; 
       28.Rd2?! Bc3 29.Rc2 Rc7 30.Rc7 d4+–) 28...Bc3 29.Rb8+–) 
       (28.Bc8 Nc3 29.Rd3 Na4+=) 
    de4 1–0
    (14) Nguyen Hoang Nam1 (2360) – Pham Chuong (2395)
    Can Tho VIE, Men Ch, 2012
    1.b4 d5 2.Bb2 Nf6 3.e3 e6 4.b5 Nbd7 5.Nf3 c5 6.c4 Bd6 7.Be2 0–0 8.0–0 a6 
    9.a4 ab5 10.ab5 Ra1 11.Ba1 b6 12.d4 Qc7N 
    13.dc5 Bc5 14.Nbd2 Bb7 15.Qb1 dc4 16.Rc1 Ra8 17.Rc4 Bd5 18.Rc1 Qb7 19.Bd3 
    Ra4 20.Re1 Qa8 21.h3 h6 22.Bc3 Ra3 23.Bb2 Ra4 24.Bc3 Ra3 25.Bb2 Ra4 
    26.Bc3 ½–½
    (15) Bui Dac Khuong – Nguyen Trung Hieu
    Can Tho VIE–chT, 2003
    1.b4 d5 2.Bb2 Nf6 3.Nf3 e6 4.a3 c5 5.bc5 Bc5 6.e3 0–0 7.d4 Be7 8.c4 b6 
    9.Bd3 Bb7 
       (9...dc4 10.Bc4 Bb7 11.0–0=) 
       (10.cd5 Qd5 11.Nbd2 Rd8=) 
    10...dc4 11.Bc4 Nbd7 
       (11...Nc6 12.0–0=) 
    12.0–0 Rc8 13.Bd3 h6 
       (13...a6 14.Qe2 b5 15.Rfc1=) 
       (14.Qe2 Nd5 15.Nd5 Bd5+=) 
    14...a6= 15.Re1 
       (15.e4 b5=) 
    15...b5 16.h3 
       (16.e4 Nb6=) 
       (16...Qa5 17.Nb1+=) 
       (17.e4 Re8=) 
       (17...Qd7 18.Nf3+=) 
    18.Nd5= Bd5 
       (18...Qd5 19.Be4 Qd7 20.Bb7 Rc1 21.Bc1 Qb7 22.Qg4+=) 
    19.Rc8 Qc8 20.e4 Bb7 21.Bc2 
       (21.Qa1 Na4=) 
    21...Qc7 22.Re3 
       (22.Bb3 Rc8+=) 
       (22...Rd8 23.Rc3 Qf4 24.Rf3+=) 
       (23.Rc3 Qd6 24.Nf3 Nc4+=) 
       (23...Rd8 24.Rb3+=) 
    24.Qd2= Nc4 25.Qc3 f6 
       (25...Rc8 26.d5 e5 27.Ba1=) 
       (26.Bd3 Rf7=) 
       (26...ed5 27.ed5 Rf7 28.Bc1+=) 
       (27.de6 Qe6 (worse is 27...Nb2 28.Qb2 Kh8 29.a4+=) 28.Qd4 Kh8+=) 
       (27...ed5!? 28.Bh6 Rf7 29.ed5 Bd5+=) 
    28.Qf3 Ne5 
         A) 29.ef5?! ed5 (29...Qd5 30.Qh5 Qe5 31.Bh6 Qg3 32.fg3 ef5 33.Bc1 
          Kg8 34.Bf5+–) 30.f6 Rf6= (30...Qf6? 31.Qd3 Qf2 32.Kh2+–);
         B) 29.Rg6 Rf6 30.Rf6 gf6 31.Qh5+–) 
    29.Qh5+/– Nf7?? 
       (better is 29...Kh7 30.Bb2 Kh8 (30...ed5? 31.ed5 Kh8 32.Qf5+–) 31.Be5 fe5+= 
    30.Qg6+– Ng5 
       (30...Qg3 31.Qg3 ed5+–) 
       (31.Bg5 Qc7 32.e5 Qc2 33.Qc2 Rc8+–) 
       (31...Qe5 32.hg5 fg5+–) 
    32.hg5 hg5 
       (32...Qe7 33.gh6 Rf7 34.e5 f5 35.Bf5 Rf5 36.hg7 Kg8 37.Qh7 Kh7 38.g8Q 
       (33.e5 Kg8 34.ed6 f5 35.Rg5 Rf7 36.d7 Bc6 37.d8Q Be8 38.Qe8 Rf8 
    (16) Nguyen Tran Quang,Minh – Huynh Lam Binh,Nguyen
    VIE–chT, 2003
    1.b4 d5 2.Bb2 Nf6 3.Nf3 e6 4.a3 Nbd7 5.e3 Bd6 6.Be2 0–0 7.h3 c5 8.bc5 Bc5 
    9.0–0 Re8 10.d4 Bd6 11.Nbd2 Qc7 12.c4 b6 13.Rc1 Qb7 14.cd5 Qd5 15.Ne5 Rb8 
       (15...Be5 16.Bf3 Qa2 17.de5+/–) 
    16.Bf3+/– Qb5 17.Ndc4 
       (17.a4 Qb2 18.Ndc4 Qc1 19.Qc1 Bf8+–) 
       (better is 17...Bf8!?+/–) 
    18.de5+– Nd5 19.Qc2 
       (19.a4 Qa6 20.Nd6 Rd8 21.Bd5 ed5 22.Qd5 Rf8+–) 
    19...Rd8+/– 20.Be4 h6 
       (20...f5 21.Nd6 Qa5 22.Bf5 (22.Nc8?! Rbc8 23.Qc8 Rc8 24.Rc8 Kf7+=) 
       22...ef5 23.Qf5+–) 
    21.Bh7 Kf8 22.Nd6 Qa6 23.Bg6! f6 
       (23...fg6 24.Qg6 Combination) 
    24.Nf7 Re8 25.Nd6 
       (better is 25.ef6!? gf6 26.Nh6 Re7+–) 
    25...Rd8 26.Nf7 Re8 27.Nh6! gh6 28.Be8 Ke8 29.Qg6 Kd8 
       (29...Ke7 30.e4 fe5 31.ed5 ed5 32.Qg7 Kd6 33.Be5 Ne5 34.Qc7 Ke6 
       (30.ef6 Nf8 31.Qf7 Qf1 32.Kf1 Ng6+–) 
    30...Ke7 31.ef6 Kd6 32.e4 N5f6 33.Rfd1 
       (33.Rfd1 Nd5 34.ed5 Qf1 35.Rf1+–) 
    (17) Le Phi Long – Tran Quoc Dung
    VIE–ch U17 Dong Thap, 1999
    1.b4 d5 2.Bb2 Nf6 3.Nf3 e6 4.a3 Be7 5.e3 0–0 6.Be2 Nbd7 7.0–0 b6 8.d3 c5 
    9.b5 Bb7N 
    10.c4 Qc7 11.Nbd2 Rad8 12.Qc2 Bd6 13.h3 Rfe8 14.a4 a5 15.Rac1 Qb8 16.Rfd1 
    e5 17.cd5 Bd5 18.e4 Bb7 19.Nh2 Nf8 20.Nc4 Bc7 21.Ng4 Can e5 get 
    defended? 21...Ng4 22.hg4 
       (better is 22.Bg4!? Ne6 23.Be6 Re6 24.Qe2=) 
    22...Ne6–/+ 23.g3 Nd4 24.Bd4 Rd4 
       (24...cd4?! 25.Na5 Bd6 26.Nb7 Qb7 27.Qb3=; 
       24...ed4?! 25.f4+=) 
    25.Ne3 Bd8 26.Nf5 Rd7 27.Rf1 Bg5 28.Rcd1 g6 29.Nh4 Bh4 30.gh4 Qd8 31.g5 
    h6! 32.Qc1 
       (32.gh6 Qh4 Pinning (32...Qh4 Deflection)) 
    32...hg5 33.Qg5 Qg5 34.hg5 Rd4 35.Ra1 Kg7 36.Rfc1 Red8 37.Rc3 Rb4 38.Rca3 
    Bc8 39.Kg2 Be6 40.Bd1 Rb2 41.Kf3 Rh8 42.Kg2 Rh4 43.Kg3 Rh3 44.Kg2 Rh8 
    45.Kg3 Rd2 46.Bf3 Rd8 47.Rd1 Rb2 48.Rda1 
       (better is 48.Rc1!?–/+) 
    48...Bb3–+ 49.Be2 
       (49.Bg2 Rd3 50.f3 f5 51.gf6 Kf6–+) 
       (49...Re2?! 50.Rb3 Rd2 51.f3–+) 
    50.Ra4 Re2 51.Kf3 Rd2 0–1
    (18) Le Phi Long – Huynh Huu Tan,Thanh
    VIE–ch U17 Dong Thap, 1999
    1.b4 d5 2.Bb2 Nf6 3.Nf3 Bf5 4.e3 e6 5.a3 c5 6.b5 Nbd7 
    7.d3N Be7 8.Nbd2 Rc8 9.Be2 0–0 10.0–0 Nb6 11.c4 Qc7 12.Be5 Bd6 13.Bd6 Qd6 
    14.Re1 Bg6 15.Bf1 Rfd8 16.a4 Nbd7 17.Qb3 Ne5 18.Ne5 Qe5 19.Nf3 Qc7 
    20.Red1 h6 21.Qb2 Rd6 22.Rac1 Qd8 23.d4 dc4 24.Rc4 cd4 25.Rc8 
       (25.Nd4? Rc4 26.Bc4 e5–+) 
    25...Qc8 26.Rc1 Qd8 27.Nd4 Kh7 28.h3 Qa5 29.Qa3 Rd7 30.Rc8 Qe1?? 
       (better is 30...Be4=) 
    31.Nf3+– Qd1 32.Qf8 Bd3 33.Ne5 Qf1 34.Kh2 Ng4 
       (34...Ne8 35.Re8 Qg2 36.Kg2 Be4 37.Kg3 g5 38.Qg8) 
    (19) Nguyen Le Thanh – Pham Thi Ngoc,Tu
    VIE–ch U11 Girls, 1999
    1.b4 d5 2.Bb2 Nf6 3.Nf3 Bf5 4.e3 e6 5.a3 c5 6.b5 Nbd7 7.Be2 Bd6 8.0–0 0–0 
    9.a4N b6 10.c4 Qc7 11.h3 h6 12.d3 Rad8 13.Nbd2 Bh7 14.Qb3 Rfe8 15.Bd1 Qb7 
    16.Bc2 e5 17.cd5 Nd5 18.Rfe1 Nb4 19.e4 Nc2 20.Qc2 f6 21.Nf1 Nf8 22.Ne3 
    Ne6 23.Nh4 Qc7 24.Qe2 Nf4 25.Qc2 Bf8 26.Rad1 Qd7 27.Qc4 Kh8 28.f3 Nd3 
    29.Re2 Nb2 30.Rb2 Qe6 31.Rd8 Qc4 32.Nc4 Rd8 33.Kf2 ½–½
    (20) Phan Dan Huyen (2040) – Nguyen Thanh Mai
    VIE–chT Super (Women), 2004
    1.b4 d5 2.Bb2 Bf5 3.e3 e6 4.a3 Nf6 5.Nf3 Nbd7 6.c4 dc4 7.Bc4 Nb6 8.Bb5N 
    c6 9.Be2 Be7 10.d3 0–0 11.0–0 Bg6 12.Ne5 Bd6 13.Ng6 hg6 14.Nd2 Bc7 
    15.Qb3 Qe7 16.Rac1 Rad8 17.a4 Nbd5 18.Rc4 Bb8 19.Bf3 Nd7 20.e4 N5b6 
    21.Rc2 Ne5 22.Be2 
       (22.d4 Nf3 23.Nf3 f5+=) 
       (better is 22...Nd3 23.Bd3 Qd6+=) 
    23.a5+/– Nbd7 24.d4 Ng6 25.a6 Nf6 26.e5 Nd5 27.Ba3 Qd7 28.Ne4 Ndf4 29.Rd1 
       (worse is 29.Ng5 Qd4 (worse is 29...Ne2 30.Re2 Qd4 31.Qh3+/–) 30.Nf3 Qe4–/+ (worse is 
       30...Ne2 31.Re2 Qd3 32.Qd3 Rd3 33.Bb2+=)) 
    29...Ne2 30.Re2 f6? 
       (better is 30...Be5!? 31.ab7 Bd4+=) 
    31.b5 Rf7 32.Bd6 
       (32.Nc5 Qd5 33.Qd5 Rd5 (33...ed5? 34.Nb7 Re8 35.bc6 fe5 36.de5+–) 
       34.ab7 cb5 35.ef6 e5+–) 
       (better is 32...Nf4 33.Ra2 b6+/–) 
       (33.ed6?! Nf4 34.Rc2 cb5+/–) 
    33...Re7 34.Nb7 Rb8 35.ef6 gf6 36.Qf3 
       (36.Qg3 e5 37.Nc5+/–) 
    Rf8 1–0
    (21) Nguyen Hoang Nam1 (2360) – Hoang Van Ngoc (2200)
    Can Tho VIE, Men Ch, 2012
    1.b4 d5 2.Bb2 Bf5 3.e3 e6 4.Nf3 Nf6 5.c4 dc4 6.Bc4 Be7 7.0–0 0–0 8.b5 c6N 
    .a4 cb5 10.ab5 Nbd7 11.d4 Bd6 12.Bd3 Ne4 13.Na3 Rc8 14.Nc4 Bb8 15.Rc1 
    Bg6 16.Be2 Bh5 17.g3 Nb6 18.Ncd2 Rc1 19.Qc1 Nd2 20.Qd2 Qd5 21.Nh4 Nc4 
    22.Bc4 Qc4 23.Ba3 Re8 24.Rb1 Qd5 25.Qd3 f5 
       (25...e5 26.b6 a6 27.Rc1+=) 
    26.Rc1 g5 27.Ng2 Bf3 28.Ne1 Be4 29.Qc4 Qc4 30.Rc4 g4 31.f3 Bd5 
       (worse is 31...Bf3 32.Nf3 gf3 33.Kf2=) 
    32.Rc1 h5 
       (worse is 32...Bf3 33.Nf3 gf3 34.Kf2=) 
    33.Kf2 Kf7 34.h4 
    34...gh3–+ 35.Nd3 h4! 36.Ne5 
       (36.gh4 Rg8 Combination) 
    36...Be5 37.de5 Rg8 38.Rc7 Kg6 39.gh4 Kh6 40.e4 h2 41.Rc1 fe4 42.Rh1 ef3 
    43.Rh2 Rc8 44.Kg3 Rg8 45.Kf2 Kh5 46.Bc5 a5 47.ba6 ba6 48.Ke3 
       (48.Bb4 Rb8 49.Bd2 Rb2–+) 
       (48...Rg2 49.Rg2 fg2 50.Kf2–+) 
    49.Kd3 a4 50.Rh1 
       (50.Kc3 Rg4 51.Kd3 Rh4–+) 
       (50...a3 51.Ba3 f2 52.Rf1 Rg3 53.Kd4 Ra3 54.Rf2 Ra4 55.Kc5 Rh4 
    51...a3! 52.Ba3 f2 53.Rf1 Rc2 54.Ke3 Rc3 55.Kd4 Ra3 56.Rf2 Kh4 57.Rf8 Ra6 
    58.Rg8 Rc6 59.Rh8 Kg5 60.Rg8 Kf4 61.Rf8 Kg3 62.Rg8 Kf2 63.Rf8 Ke2 64.Rc8 
       (65.Rc6 Bc6 66.Ke3 Kf1–+) 
    65...Rc4 66.Kd3 Re4 67.Rh5 Kf2 68.Rg5 Kf3 69.Rh5 Kf4 70.Rh8 Ke5 71.Rf8 
    Rf4 72.Rh8 Rf3 73.Ke2 Ra3 74.Rh4 Be4 75.Rh8 Kd4 76.Rd8 Bd5 77.Rh8 e5 0–1
    (22) Nguyen Tran Quang,Minh – Nguyen Thien Viet
    VIE–ch U20 Dong Thap, 1999
    1.b4 d5 2.Bb2 Bf5 3.e3 Nf6 4.Nf3 e6 5.a3 Nbd7 6.d4 a5 7.b5 a4 8.c4 c5N 
    9.bc6 bc6 10.c5 e5 11.Be2 Qb8 12.Bc3 Be7 13.Bb4 Ne4 14.Nfd2 ed4 15.ed4 
    Qf4 16.Ne4 Qe4 17.0–0 Qc2 18.Nc3 0–0 19.Ra2 Qd1 20.Bd1 Attacking the 
    isolated pawn on a4 
       (20.Nd1?! Rfe8=) 
    20...Bf6 21.Ba4 Ra6 22.Rd2 Rfa8 23.Bd1 Nf8 24.g4 Bc8 25.f4 Ne6 26.Ne2 g5 
    27.f5 Nc7 28.a4 Ra4 29.Ba4 Ra4 30.Bc3 Nb5 31.Bb2 h5 32.h3 Ra2 33.Ra1 Ra1 
    34.Ba1 h4 35.Ra2 Bb7 36.Kf2 Bd8 37.Nc3 Nd4 
    38.Ra7 Be7 39.Na4 
       (39.Na4 Nb3 40.Rb7 Na1 41.Re7+–; 
       worse is 39.Rb7 Bc5 40.Na4 Nb3 41.Nc5 Na1+–) 
    (23) Vuong Quynh Huong – Le Anh Phuong
    VIE–ch U11 Girls, 2005
    1.b4 e5 2.a3 d5 3.Bb2 Bd6 4.e3 Nf6 5.g3 0–0 6.Bg2 
       (6.Nc3 c6–/+) 
    6...c6 7.d3 
       (7.Ne2 a5–/+) 
       (7...a5 8.Nd2–/+) 
    8.Nf3+= Nbd7 
       (8...Qc7 9.Nbd2+=) 
       (9.c4 c5 10.bc5 Nc5 11.cd5 Bd5+=) 
    9...a5–/+ 10.c3 
       (10.0–0 Qc7–/+) 
       (10...b5 11.0–0–/+) 
       (11.0–0 Qb6–/+) 
       (worse is 11...Bc5 12.c4 dc4 13.Nc4+=) 
       (12.Bf1 e4 13.de4 de4–/+) 
    12...Bf5 13.Bf1 b5 
       (13...Rc8 14.Nh4 Bd7 15.Nhf3–/+) 
    14.Nh4 Qd7 
       (14...Bd7 15.Bg2–/+) 
    15.Nf5 Qf5 16.Be2 
       (16.e4 Qe6 17.Bg2 de4 18.de4–/+) 
       (16...Rfb8 17.0–0–/+) 
       (17.d4 ed4 18.cd4 Nce4 19.Ne4 de4 20.Bb5 Qg2+=) 
       (17...Rfb8 18.c4 bc4 19.dc4+=) 
       (better is 18.d4!? Ncd7 19.de5 Ne5 20.Ne5 (20.Bb5?? Nf3 21.Ke2 Nh2–+) 
       20...Be5 21.f4=) 
    18...Qf5–/+ 19.Nf3 e4 
       (better is 19...Rab8!?–/+) 
    20.Nd4= Qd7 
       (20...Qh3 21.de4 Nce4 22.Bf1= (worse is 22.Bb5 Ng4+=)) 
    21.de4+= de4 22.Bb5 
       (22.Nb5 Be5 23.Rd1 Qh3+=) 
    22...Qh3 23.Bf1 
       (23.Qe2 Rab8 24.Rb1 Rfc8=) 
    23...Qd7= 24.Rd1 Qb7 
       (24...Rab8 25.Qd2 Rfd8=) 
       (25.Bg2 Rfb8 26.Ba1 Qc7+/–) 
       (better is 25...Nd3 26.Kd2 Nf2+=) 
       (better is 26.Bb5=) 
    26...Nd3!–+ 27.Bd3? 
       (27.Qd3 ed3 Discovered attack) 
    ed3 Discovered attack. .  
       (27...ed3 28.Qd3 Qh1 29.Ke2 Qg2–+) 
    (24) Nguyen Tran Quang,Minh – Tran Nguyen Hung
    VIE–chT Thua Thien Hue, 2001
    1.b4 e5 2.a3 d5 3.Bb2 Bd6 4.Nf3= Nd7 5.e3 Ngf6+= 6.c4 dc4 7.Bc4= 0–0 8.d4 
       (8.Qc2 e4 9.Ng5 Ne5 10.Ne4 
         A) worse is 10...Nc4 11.Nf6 (worse is 11.Qc4 Ne4 12.Qe4 Re8+=) 11...gf6 12.Qc4+/–;
         B) 10...Ne4 11.Qe4 Nc4 12.Qc4 Be6=) 
       (8...e4 9.Nfd2+=) 
       (9.0–0 e4 10.Nfd2 Nb6+=) 
       (9...a5 10.0–0+=) 
       (10.0–0 e4 11.Nd2 Nb6+=) 
    10...ed4 11.Nd4 
       (11.Qd4 Ne5+=) 
    11...Ne5 12.Be2 White plans b5 
       (12.Ba2 a5–/+) 
    12...a5 13.b5 
       (13.ba5 Ra5 14.0–0 Ng6+=) 
    13...c5–/+ 14.Nb3 
       (14.Nf3 Bf5–/+) 
       (14...Bf5!? 15.g4 Bg6–+) 
       (15.Nd2 Rd8+=) 
       (better is 15...Rd8 16.0–0 Bb7+=) 
       (better is 16.0–0!?+=) 
       (16...Rfd8 17.Nd2–+) 
    17.Nd2 Rfe8 
       (17...Ng6 18.Kf1–+) 
       (18.0–0–0 Bc7–/+) 
       (18...h6 19.0–0–0–/+) 
    19.0–0–0–/+ Nd5 
       (19...Bh2!? 20.Rge1 h6–/+) 
    20.Nc4 Bc7 21.Nd5 
       (21.g5 Kh8+=) 
       (21...Rd5 22.Rd5 Bd5 23.Rd1–/+) 
    22.Qc3 f6 
       (better is 22...Qf8!?–/+) 
    23.Rd5= Rd5 24.Nb6 Rdd8 
       (24...Bb6 25.Bc4 Qe6=) 
    25.Bc4+= Kh8 
       (25...Kf8 26.Nd5 Qd6 27.Rd1+/–) 
       (26.Qa5? Qe4 27.Qa4 Bb6–+) 
       (26...Qd6 27.Rd1 Ne5+=) 
       (27.Qe5!? Be5 28.Rd1+/–) 
       (27...Qh2!? 28.Rf1 Qc7+=) 
    28.g5+= fg5 29.Rg5 Re7 
       (29...Rd7 30.Qc2 Qh2 31.Kb1 Qh3 32.Rc5+/–) 
       (30.Kb1 Rf8 31.Qc2 Qh2+/–) 
    30...Qh2= 31.h5?? 
       (31.Kb1 Qh4 32.f4= (32.Qa5?? Qe4 33.Kc1 Qh1 34.Kc2 Qd1 35.Kc3 Qd2 
       36.Kb3 Qa5–+)) 
    31...Qh1 32.Kc2 
       (32.Qe1 Qe1 33.Kc2 Rd2 34.Kc3 Re3 35.Bd3 Red3 36.Kc4 Rc2 37.Kd3 Qe2) 
    Qd1 0–1
    (25) Le Phi Long – Bui Hoang Duong
    VIE–chT Vung Tau, 2000
    1.b4 e5 2.a3 Nf6 3.Bb2 d6 4.d3 g6 5.Nf3 Bg7 6.e3 0–0 7.Be2 b6 8.0–0 Bb7 
    9.Nbd2 Nbd7 10.c4 Qe7 11.e4 Nh5 12.Qc2 
       (12.a4 a5 13.ba5 Ra5=) 
    12...Nf4 13.Rfe1 c5 14.Bf1 
       (14.Bc1 f5=) 
       (14...f5 15.g3 Ne6 16.Bg2=) 
    15.g3 Ng6 
       (15...Ne6 16.Bh3=) 
       (16.Bh3 Bc8+=) 
       (16...f5 17.Rab1=) 
       (17.Be2 f5=) 
    17...dc5 18.a4 
       (18.Be2 Bc8=) 
       (18...g4 19.Nh2=) 
    19.a5 Nc6 
       (19...ba5 20.Reb1=) 
    20.ab6 ab6 21.Qb3 Nb4 22.Ba3 
       (22.Bc3 Rfd8=) 
    22...Ra5 23.Bb4 cb4 24.Rab1 g4 25.hg4 hg4 26.Nh2 Bh6 27.Red1 
    28.Qb4+/– Qb4 29.Rb4 Ra2 30.Rb6 Bc8 31.Nb1 
       (31.Nb3 Rb2 32.d4 Kg7+–) 
       (31...Bf8 32.Rd2+/–) 
       (32.d4 ed4 33.Rd4 Kg7+–) 
       (32...Bf8 33.d4 ed4 34.Rd4+=) 
    33.Na3 Ra2 34.Nb5 R8a6 
       (34...Rb8 35.d4 ed4 36.Nd4 Rb3 37.Nb3+–) 
       (35.d4 ed4 36.Nd4 R6a5+–) 
    35...Rf6 36.R3b2 Ra5 
       (36...Rb2 37.Rb2 Nf8+–) 
    37.Be2 Ne7 
       (37...Rc6 38.Bg4 Bg4 39.Ng4+–) 
    38.Bg4 Bg4 
       (38...Bb7 39.Nf3 Ng6 40.Nc7+–) 
    39.Ng4 Re6 40.Nc7 Rc6 
       (40...Rg6 41.Ne8 Kf8 42.Nef6+– (worse is 42.Nh6 Rh6 43.Nc7 Nc6+–)) 
       (41.Nd5 Re6+–) 
       (41...Kf8 42.Rb5 Rb5 43.cb5 (worse is 43.Rb5 Ke8 44.Rb8 Kd7 45.Ne5 Kc7 
       46.Nc6 Nc6+–) 43...Rc1 44.Rc1 Bc1 45.Nd6+–) 
       (42.Rb5 Rb5 43.cb5 Re6+–) 
    43.Rc6 Nc6 44.Nh6 Kh6 45.Rb6 Rc5 46.Nc7 
       (46.Nc7 Kg7 47.Na6+–) 
    (26) Vuong Quynh Huong – Dang Hai Yen
    VIE–ch U11 Girls, 2005
    1.b4 e5 2.a3 Nf6 3.Bb2 Nc6 4.Nf3 d6 
       (4...e4 5.Nd4+=) 
       (5.e3 Be7=) 
    5...Be7 6.e4 0–0 7.Be2 Be6 8.Nbd2 a6 9.0–0 d5 
       (9...b5 10.Re1=) 
       (10.Ne5 Ne5 11.Be5 Bd6 12.Bd6 Qd6 13.ed5 Bd5+/–) 
    10...Ne5= 11.Ne5 de4 12.Ne4 Nd5 
       (12...Ne4!? 13.de4 Bf6=) 
    13.Qd2 Bf5 
       (13...a5 14.c3+=) 
    14.Ng3 Bf6 15.Nf5 Be5 16.Rab1 
       (better is 16.d4!? Nf4 17.Bg4+/–) 
    16...Qf6 17.Ng3 Bf4 18.Qe1 Rfe8 19.c4 
       (better is 19.Ne4 Qh6 20.h3=) 
       (19...Nc3 20.Rb2 Qe5 21.Rc2 Bg3 22.Qc3 Bh2 23.Kh1 Qc3 24.Rc3 Re2 
       (better is 20.fg3!? Qb6 21.Rf2+=) 
    20...Be5 21.Qd2 Rad8 22.Bf3 Qh4 Threatening mate... how? 23.g3 Qd4 
    The isolani on d5 becomes a target 24.Rfe1 Qb6 25.Rbd1 
       (25.Rbc1 Bd4+=) 
    25...Qf6= 26.Qe2 Kf8 27.Be4 Bc3 28.Rf1 b6 
       (28...Rd5 29.Qe3 Rb5 30.d4=) 
       (29.Rc1 Kg8+=) 
    29...Qf3= 30.Bf3 a5 
       (30...Re7 31.Rb1+=) 
    31.ba5+= Ba5 32.Rc1 b5 
    33.Rb1 Rb8 Black intends b4 34.Rfc1 Re7 
       (34...Ke7 35.Rc5+/–) 
    35.Rc5+– b4?? 
       (better is 35...Bd2+–) 
    36.Ra5 b3 37.Rc5 
       (37.a4 Ke8+–) 
    37...Ke8 38.Rc3 Re5 
       (38...b2 39.Rc2+–) 
    39.Rcb3 Rb3 40.Rb3 Re1 41.Kg2 
       (41.Kg2 Kd7 42.d4+–) 
    (27) Bui Dac Khuong – Tran Quoc Dung (2125)
    VIE–chT, 2003
    1.b4 e5 2.Bb2 d6 3.c4 f5 4.e3 Nf6 5.d4 e4 6.d5 Be7 7.Be2N 0–0 
         A) 8.b5 
            A1) 8...Nbd7 9.Nh3 (9.Bd4 0–0 10.Nh3 Nc5 11.0–0 Ng4 12.Nf4; 
             9.Nd2 Ne5 10.Nh3 a4 11.0–0 0–0 12.Bd4) 9...0–0 10.Nf4 Nc5 
             11.Bd4 g5 12.Nh3;
            A2) 8...a4 9.Nh3 (9.Bd4 0–0 10.Nc3 Nfd7 11.Na4 Bf6 12.Nh3) 
             9...Nbd7 10.0–0 0–0 11.Nf4 Nc5 12.Nd2;
            A3) 8...0–0 9.Nh3 (9.Nd2 Nfd7 10.Nh3 Ne5 11.Nf4 Bg5 12.0–0) 
             9...Nbd7 10.0–0 Ng4 11.Nd2 Bf6 12.Bf6;
         B) 8.Qa4 
            B1) 8...Nbd7 9.Nh3 (9.Bd4 0–0 10.Nh3 Ne5 11.0–0 c6 12.Nc3) 
             9...0–0 10.Bd4 Ra6 11.b5 Ra8 12.Nf4;
            B2) 8...c6 9.Nc3= 0–0 10.b5 cb5 11.cb5 Nbd7 12.Nh3) 
       (8.a3 a5 9.Nh3 (9.Nd2 ab4 10.ab4 Ra1 11.Qa1 Na6 12.b5; 9.Nc3 ab4 
       10.ab4 Ra1 11.Qa1 Na6 12.Qa5) 9...ab4 10.ab4 Ra1 11.Ba1 Na6 12.Bc3) 
       (8...c5 9.a3 a5 10.b5 a4 11.0–0 Nfd7 12.Nf4) 
       (9.b5 Nbd7= (9...Ng4 10.Nf4 Bf6 11.Bd4 Bd4 12.Qd4) 10.0–0 Ng4 
       11.Nc3 Bf6 12.Nf4) 
       (9...Bd7 10.0–0+= Na6 11.b5 Nc5 12.Nd2; 
       9...ab4 10.ab4 Ra1 11.Ba1 c5 12.bc5) 
       (10.0–0 Bd7+= 11.b5 Nc5 12.Bd4) 
    10...Bd7= 11.b5 Nc5 12.a4 
    12...Ng4 13.Nb3 Nb3 
       (13...Bf6 14.Bf6 Qf6 15.0–0=) 
    14.Qb3 Bf6 15.Bg4 
       (15.Bf6 Qf6 16.Rc1 Ne5=) 
    15...fg4 16.Nf4 b6 17.0–0 
       (17.Nh5 Bb2 18.Qb2 Qg5=) 
       (17...Bb2 18.Qb2 Qh4 19.Qd4+=) 
       (18.Rad1 Bb2 19.Qb2 Qh4=) 
    18...Bb2+= 19.Qb2 Rf6 20.Ng3 Rh6 21.Rfd1 Qh4 22.Nf1 
       (22.Ne4? Qh2 23.Kf1 Qh1 24.Ke2 Qg2–+) 
    22...Rf8 23.Qe2 
       (23.Rd4 Bf5=) 
       (23...g3 24.fg3 Rf1 25.Rf1 Qh2 26.Kf2 Rf6 27.Ke1 Qg3 28.Kd2+=) 
       (24.Rac1 Rhf6 25.Rc2 Bd7=) 
       (24...g3!? 25.fg3 Rf1 26.Kf1 Qh2 27.Re4 Qh1 28.Kf2 Rf6 29.Rf4 Qa1–+) 
    25.Ra2 Rh5 26.Qd1 h6 
       (26...Bf5 27.Rdd2=) 
       (27.Qe2 Bh7=) 
    27...Re5 28.Ng3 Qg5 29.Qc2 Can e4 get defended? 
       (29.Ne2 Qf6 30.Nf4 Bf5=) 
    29...h5 30.Nf1 
       (30.Ne2 h4=) 
    30...h4 31.Qc1 
       (31.Qb1 Qf6=) 
       (31...h3 32.Ng3=) 
       (32.Qb1 Qf6=) 
    32...Bg6 33.Qc1 Kh7 34.Ra2 Rf6 
       (34...h3 35.Ng3+=) 
    35.Ra3 Bh5 36.Qc2 Qf5 37.Ra2 g3 
       (better is 37...Bg6!?=) 
    38.hg3+/– h3 39.f4 
       (39.gh3 Qh3 40.f4 Bf3+/–) 
    39...hg2+= 40.Kg2 Rh6 41.fe5 
       (better is 41.Kf2+=) 
    41...Bf3–/+ 42.Kf2 Bd1 43.Ke1 Bc2 44.Rc2 Qe5 
       (44...de5 45.Rdd2–/+) 
    45.Rf2 Rh1 46.Rf4 
       (46.Kd2 g5–/+) 
    46...g5 47.Rfe4?? 
       (better is 47.Rf2–/+) 
    47...Qg3–+ 48.Ke2 Qg2 49.Kd3 Qf1 50.Kc3 0–1
    (28) Ngo T Thanh,Tra – Pham Thi Hoa1
    VIE–ch U13 Girls, 2000
    1.b4 e5 2.Bb2 d6 3.e3 Nf6 4.Nf3 Be7 5.c4 b6 6.Be2 Bb7 7.0–0 Nbd7 8.d4 ed4 
    9.Nd4 c5 10.Nf5 0–0 11.Nd6 
       (11.b5 Ne5 12.f4 Ng6 13.Bf3 Bf3 14.Qf3 Qd7 (14...a6 15.Nc3 Qd7 16.e4 
       Rfe8 17.ba6+=) 15.e4 Qe6+= 16.Nd2 a6 17.ba6+=) 
    11...Bd6 12.Qd6 Ne4 13.Qd3 
       (13.Qf4 cb4 14.Rd1 f5+= 15.a3 ba3+=) 
    13...cb4= 14.Qb3 
       (14.f3 Nec5 15.Qd2 a5= (15...Qe7=); 
       14.Qd4 f6 15.Rd1 Ndc5=) 
       (14...Qg5 15.Bf3 Nec5+=) 
       (better is 15.Bd4!?= Qg5=; 
       15.Qc2 Qg5=) 
    16.g3 Ndc5 17.Qc2 Rad8 18.Nd2 Nd2 
       (18...Qf5 19.Nf3–/+) 
    19.Rd2+= Rd2 20.Qd2 Rd8 21.Qc2 
       (21.Bd4 Qf5+=) 
    21...Be4–/+ 22.Qc1 Nd3 23.Bd3 Bd3 24.Bd4 Rc8 25.Qd2 Bc4 
       (25...Bc4 26.Bb6 Qb5+=) 
    Line +=
    (29) Nguyen T Kim,Trung – Nguyen Anh Thy
    VIE–ch U13 Girls, 1999
    1.b4 e5 2.Bb2 d6 3.e3 Nf6 4.Nf3 Bg4 5.Be2 Be7 6.0–0 Nbd7 7.c4 Nb6 8.a3 
    Qd7 9.d3 0–0 10.Nbd2 Na4 11.Rb1 Nb2 12.Rb2 Rae8 13.Re1 Bd8 14.e4 c6 
    15.Qa4 b5 
    16.cb5+= cb5 17.Qd1 
    17...d5 18.Rc2 Bb6 19.Bf1 
       (19.h3 Bh3 20.gh3 Qh3–/+) 
    19...Bh5 20.ed5 Qd5 21.Qa1 Nd7 22.Qc3 Re6 23.Re4 Bg6 24.Re1 Rfe8 The 
    isolani on d3 becomes a target 25.Ng5 Rd6 26.Nde4 Be4?? 
       (better is 26...Bd4 27.Qc7 Ra6+=) 
    27.de4+/– Qb7 28.Bb5 Rg6 
       (28...h6 29.Bd7 Rd7 30.Nf3+/–) 
    29.Qd2 Rd8 30.Ra1?? 
       (better is 30.Bc4 Rf6 31.Qd5 Qd5 32.ed5+–) 
       (30...Nc5 31.Qc3 Ne4=) 
       (better is 31.Qc1 h6 32.Nf3=) 
    31...Rgd6–/+ 32.Rc3 Qd7 
       (better is 32...Bd4!? 33.Bf1 Bc3 34.Qc3 Ng6–/+) 
    33.Rd1= Ng6 34.Nf3 f6 
       (better is 34...Qe6!?=) 
    35.Bc4+/– Kh8 36.Qd6 Qd6 37.Rd6 Rd6 38.Be2 h6 39.g3 Ne7 40.Bb5 g5 41.Kg2 
       (41.h3 Kg7+/–) 
    41...g4 42.Ne1 Rd2 
       (42...f5 43.ef5 Nf5 44.Nd3+/–) 
    43.Nd3 f5 44.ef5 Bd4 45.f6 Nd5 46.Rc8 Kh7 47.Kf1 
       (47.h3 Nf6 48.Rc7 Kg6+=) 
    47...Nf6= 48.Rd8 Bc3 49.Rc8 Nd5?? 
       (better is 49...Bd4=) 
    50.Rc5+– Rd1 51.Kg2 Rd2?? 
       (better is 51...e4 52.Rd5 ed3 53.Rd3 Rd3 54.Bd3 Kg7+–) 
    52.Rd5 e4 53.Rd7 Kg8 54.Nf4 Rb2 
       (54...Rd7 55.Bd7 Bd2+–) 
    55.Re7 Bd4 
       (55...Bg7 56.Bc4 Kh7 57.Nh5+–) 
       (56.Bc4 Kf8 57.Ng6) 
    56...Bb6 57.Re4 1–0
    (30) Bui Dac Khuong – Nguyen Minh Hung
    VIE–ch U15, 2005
    1.b4 e5 2.Bb2 d6 3.e3 Be6 4.d4 f6 5.d5N Bf7 6.e4 
         A) 6...c6 7.Nf3 (7.Nc3 f5 8.Nf3 Nf6 9.Be2 Be7 10.0–0) 7...f5 
          8.dc6 Nc6 9.a3 Nf6 10.Be2;
         B) 6...f5 7.Nf3 (7.Nc3 c6 8.Nf3 Nf6 9.Be2 Be7 10.0–0; 7.Be2 Nf6 
          8.Nf3 a5 9.a3 ab4 10.ab4; 7.Bd3 Qg5 8.Nf3 Qg4 9.Bf1 c6 10.dc6; 
          7.a3 Nf6 8.Nf3 a5 9.Be2 ab4 10.ab4) 7...c6 8.dc6 Nc6 9.a3 Nf6 
         C) 6...a5 7.b5 (7.a3 ab4 8.ab4 Ra1 9.Ba1 c6 10.Nf3) 7...Ne7 
          8.Nf3 c6 9.Nc3 cd5 10.cd5; 
         A) 6...Ne7 7.e4 (7.Nf3 Nd7 8.e4 c6 9.dc6 bc6 10.Qd6) 7...c6 
          8.Nf3 a5 9.a3 ab4 10.ab4;
         B) 6...c6 7.Nf3 Ne7 8.e4 a5 9.b5 cd5 10.Nd5;
         C) 6...Be7 7.Bd3 Nh6 8.e4 a5 9.b5 f5 10.ef5;
         D) 6...f5 7.Nf3 Nf6 8.Ng5 Bh5 9.Qd2 Qe7 10.Bd3) 
    6...Ne7 (DRAW agreed here) 
       (6...c6 7.Nc3 (7.Nf3 Qb6 8.a3 a5 9.b5 cd5 10.ed5; 7.c4 Qb6 8.a3 a5 
       9.b5 Nd7 10.Nc3) 7...Ne7 8.Nf3 a5 9.b5 cd5 10.Nd5; 
       6...Nd7 7.Nf3 (7.Nc3 a5 8.a3 Ne7 9.Nf3 c6 10.dc6) 7...a5 8.b5 Nb6 
       9.c4 f5 10.ef5; 
       6...Be7 7.Nc3 (7.Nf3 Qd7 8.Nc3 f5 9.ef5 Qf5 10.Bc1) 7...c6 8.Nf3 Qb6 
       9.a3 Nh6 10.Bd3) 
       (7.Nf3 c6 8.Nc3 a5 9.b5 cd5 10.Nd5) 
    7...f5 8.ef5 c6 9.Bc4 Nf5 10.dc6 ½–½
    (31) Nguyen Tran Quang,Minh – Tran Quoc Dung (2125)
    VIE–chT, 2003
    1.b4 e5 2.Bb2 d6 3.e3 Be6 4.Nf3 Nd7 5.d4 e4 6.Nfd2 
       (6.d5 Bg4 7.Qd4 f5=) 
    6...d5+= 7.c4 c6 
       (7...Bb4 8.Bc3 Bd6 9.Qb3+=) 
    8.Qb3 Ngf6 9.h3 g5 
    10.Nc3= Be7 11.a4 Rg8 12.Be2 Kf8 
       (12...dc4 13.Bc4 Bc4 14.Nc4=) 
    13.g4 ½–½
    (32) Nguyen Thai Binh (2265) – Le T Minh,Nhut
    VIE–chT, 2003
    1.b4 e5 2.Bb2 d6 3.g3 Nf6 4.Bg2 Be7 5.c4 Be6 6.d3 c6 7.Nd2 Nbd7 8.Ngf3 
    0–0 9.h4 
       (9.0–0 Qb6 10.a3 a5=) 
       (9...a5 10.a3–/+) 
    10.Ng5 d5 
       (10...Bf5 11.e4 Bg6 12.g4=) 
    11.Ne6= fe6 12.Qb3 Kh8 13.Bh3 Qb6 
       (13...Qe8 14.Nf3=) 
       (14.c5 Qc7 15.Be6+=) 
    Line +=
    (33) Nguyen Chi Binh – Dao Quang Minh
    VIE–chT Hue, 1999
    1.b4 e5 2.Bb2 d6 3.Nf3 a6 4.e3 Nf6 5.c4 Bg4 6.Be2 Nbd7 7.0–0 
       (7.h3 Bf3 8.Bf3 c6 9.0–0 d5 10.c5 Qc7 11.Qc2 e4 12.Be2 Rc8 13.Nc3 Be7 
       14.f3 0–0 15.fe4 de4 16.Ne4 Ne4 17.Qe4 Bf6 18.d4 Rce8 19.Qf3 Bg5 20.e4 
       Nf6 21.Bd3 g6 brozal–trewies/kurnik 2012/1–0) 
    7...Be7 8.Nc3N 
       (8.h3 Bf3 9.Bf3 Rb8 10.a4 c6 (10...b6 11.b5 a5 12.d4 ed4 13.ed4 0–0 
       14.Nd2 h6 15.Nb3 Nh7 16.Qc2 Bf6 17.Rad1 Ng5 18.Bc6 Ne6 19.Rfe1 Kh8 
       20.Ba3 Be7 21.c5 dc5 22.dc5 bc5 23.Rd7 Qc8 24.Re7 1–0 carocan 
       (1720)–barburax/kurnik 2012) 11.d4 ed4 12.ed4 0–0 13.Re1 h6 14.Nd2 
       Nh7 15.Qc2 Bf6 16.Nb3 Ng5 17.Be2 Re8 18.b5 cb5 19.ab5 ab5 20.cb5 b6 
       21.Ra7 Ra8 22.Rea1 Rc8 carocan (1720)–barburax/kurnik 2012/0–1 (59)
    8...0–0 9.a3 c5 10.d4 h6 
       (better is 10...ed4!? 11.ed4 Rc8=) 
    11.bc5+/– dc5 12.Ne5 Be2 13.Qe2 cd4 14.ed4 Re8 15.Nd7 
       (15.Rad1 Qc7+/–) 
    15...Qd7 16.Qd3 Rad8 17.Rad1 Qc7 18.h3 Rd7 19.d5 Rc8 20.Na4 
       (20.Ne4 Ne4 21.Qe4 Qc4+=) 
       (20...Qa5 21.Qc2 b5 22.Qf5=) 
       (21.cb5 Rd5 22.Qe3 Rd1 23.Rd1 ab5 24.Rc1+=) 
       (21...Bf6 22.cb5 Qa5 23.Qe4 ab5 24.Nc5+=) 
       (better is 22.Qf5!? Bf6 23.d6+–) 
    22...Bf6 23.Nb6 Rb8 24.Nd7 Rb1 25.Nf6 gf6 26.Rb1 Qd6 
    27.Rfd1+– c3 
       (27...Kf8 28.Rbc1+–) 
    28.Rbc1 Kf8 
       (28...Qa3?? 29.d6 Qa5 30.d7+–) 
    29.Rc3 a5 30.Rc8 Kg7 31.Rc6 
       (31.Rc4!? Kf8+–) 
    31...Qa3 32.d6 Qa4 33.Rcc1 Qd7 34.Rc7 Qa4 35.Rdc1 1–0
    (34) Dang Bich Ngoc (2155) – Tran Dang Hong Lien
    ch–VIE w, Dong Thap VIE, 2003
    1.b4 e5 2.Bb2 d6 3.Nf3 Nf6 4.e3 Be7 5.c4 0–0 6.d4 e4 7.Nfd2 d5 8.Qb3 c6 9.Nc3 Be6 10.Be2N Qb6 11.a3 Nbd7 12.0–0 
       (12.Rc1 a5 13.b5 Qa7 14.0–0 Rfc8 15.Qc2 dc4 16.bc6 Rc6 17.Rfd1=; 
       12.cd5 cd5 13.Na4 Qd8 14.0–0 b6 15.Rac1 Qb8 16.b5 Re8 17.Nc3=; 
       12.Rb1 Qc7 13.Rc1 Nb6 14.cd5 Nfd5 15.Nd5 Bd5 16.Qc2 f5 17.Nc4=; 
       12.Qa4 Qc7 13.cd5 cd5 14.Rc1 Qd8 15.0–0 a5 16.b5 Nb6 17.Qc2=) 
       (12...Rfe8 13.cd5 cd5 14.Na4 Qd6 15.Nc5 Qc6 16.Rfc1 Nc5 17.bc5=) 
       (13.Qa4 a6 14.Rac1 Rfe8 15.Rc2 Qc7 16.cd5 Nb6 17.Qa5=) 
       (13...Rfe8 14.cd5 cd5 15.Na4 Qd6 16.Nc5 Rb8 17.f3+=) 
       (14.cd5 cd5 15.Na4 Qd6= 16.Nc5 Rc7 17.f3=) 
    14...ef3 15.gf3 
       (15.Rf3 Rfe8= 16.Bd3 Qd8 17.e4=; 
       15.Nf3 Rce8 16.c5 Qc7 17.Bd3=) 
       (15...Rfe8 16.Bd3= Qd8 17.c5=) 
    16.Nd1 White intends c5 
       (16.f4 dc4 17.Nc4= (17.Bc4 Bc4 18.Nc4 Qc7=)) 
       (16...dc4 17.Bc4 Bc4 18.Nc4=) 
       (17.c5 Qc7=) 
       (17...de4 18.fe4 c5 19.e5 cd4 20.ef6 d3 21.Nf2 de2 22.fe7 Rd2 
       (18.e5 Ne8+=) 
    18...Qc7= 19.e5 
       (better is 19...Nh5!?+=) 
    20.f4+= Bf5 
       (20...Qd7 21.Ne3 Bh3 22.Rf3+/–) 
    21.Qg3+/– Qd7 
       (21...Re8 22.Ne3 Bd7 23.Bd3+/–) 
    22.Ne3 Qe6 
       (better is 22...Rc7!?+/–) 
    23.Nf5+– Qf5 24.Kh1 
       (24.Bg4 Qg6 25.Bc8 Qg3 26.hg3 Rc8+–) 
    24...Qg6 25.Qh3 White prepares f5 25...Rc7? 
       (better is 25...h5+–) 
    26.Rg1 Qe6 27.f5 
       (27.Bg4!? f5 28.Bf5 Qf7 29.Qh6 Kh8+–) 
    27...Qc8 28.Qh6 Bg5? 
       (28...Ng6 29.Qh3 Bg5 30.Rg5 Ng5+–) 
    29.Rg5 Ng5 30.Qg5 Nh7 
       (30...f6 31.Qg4+– (31.ef6?! Nh7 32.Qg6 Nf6+–)) 
    31.Qg4 1–0
    (35) Nguyen Chi Binh – Nguyen Huy Cuong
    VIE–chT Hue, 1999
    1.b4 e5 2.Bb2 d6 3.Nf3 Nf6 4.e3 Bg4 5.Be2 Nbd7 6.0–0 Be7 7.c4 0–0 8.Nc3 
    Re8 9.d4 ed4 10.ed4 Bf8 11.Re1 c6 12.Nd2 Be2 13.Re2 Qb6 14.Na4 
    White plans c5 14...Qc7 
       (worse is 14...Qb4 15.Bc3 Qa4 16.Qa4 Re2 17.Rb1+/–) 
    15.c5 Re2 16.Qe2 Re8 17.Qd1 Nd5 18.a3 N7f6 19.Nc3 Nc3 20.Bc3 Nd5 21.Rc1 
    Nf4 22.Rc2 g6 23.Nc4 dc5 24.dc5 Rd8 25.Rd2 Rd2 26.Qd2 Nd5 27.Be5 Qe7 
    28.Kf1 Qe6 29.Qe2 Bg7? 
       (better is 29...Qf5!?=) 
    30.Bg7+/– Kg7 31.Qe6 fe6 32.Na5 Kf6 33.Nb7 e5 34.Na5 Ne7 35.Ke2 Ke6 36.f3 
    Kd5 37.Kd3 Nf5 38.Nc4 h6 39.Ne3 Ne3 40.Ke3 a6 41.Kd3 1–0
    (36) Nguyen Chi Binh – Hoang Ng Quang,Nguyen
    VIE–ch U09 Dong Thap, 1999
    1.b4 e5 2.Bb2 e4 3.e3 Nf6 4.a3 d5 5.c4 c6 6.Nc3 a6N 7.c5 g6 
       (7...a5 8.d3=) 
    8.Na4 Nbd7 9.Nh3 Bg7 10.Be2 0–0 11.0–0 Qe7 12.f3 ef3 13.Bf3 Rb8 14.Qe2 
    Re8 15.Nf2 Ne5 16.Nb6 Nf3 17.Qf3 Bf5 18.Nh3?? 
       (better is 18.Bd4=) 
    18...Ne4–+ 19.Bg7 Nd2 
       (19...Kg7?! 20.Ra2=) 
       (20.Qg3 Nf1 21.Rf1 Qe3 22.Qe3 Re3 23.Bd4–/+) 
    20...Nf1 21.Bd4 Bh3 22.Rf1 Bf5 23.Qf3 Bc8?? 
       (better is 23...Be4 24.Qg3 f5–+) 
    24.Qf4+– Bf5 25.g4?? 
       (25.Qf3 Be4 26.Qf2–+) 
       (better is 25...Bd3 26.Qf6 Qf6 27.Rf6 Re7–+) 
    26.Nd7+/– Qd7 27.Qf6 Qg4 
       (27...Qg4 28.Kh1 Qe4 29.Rf3 Qf3 30.Qf3 Re6+=) 
    (37) Bo Huynh Nhat,Truong – Nguyen Huynh Trong,Hai
    VIE–ch U09 Vung Tau, 2004
    1.b4 e5 2.Bb2 f6 3.a3 d5 4.d4 ed4 5.Bd4 Nc6 6.Bb2 Bf5 
       (6...Bd6 7.e3=) 
    7.Nf3 Bd6 8.Nc3 Nge7 9.e3 
       (9.Nd5? Nd5 10.e3 Nde7–+) 
       (9...a5 10.b5 (10.Nd5? Nd5 11.c4 Nde7–+) 10...Ne5 11.Nd4= (11.Nd5? 
       Nd5 12.c4 Nb6–+)) 
       (10.Bd3 Qd7 11.0–0=) 
    11.Nd5+/– Bb4?? 
       (better is 12.Nb4 Qe8 13.Bc4 Kh8 14.0–0+–) 
       (12...Qd5 13.Qd5 Nd5 14.c3=) 
       (13.b5 Nce7 14.Nd4 Be4+=) 
       (13...Be4 14.c3=) 
       (14.b5 Nce7+=) 
       (14...Ne5 15.Bb3=) 
       (worse is 15.ef4 Bc4 16.Bc1 Qe7 17.Be3 Rad8–/+) 
       (16.0–0!? Bc4 17.Qc4 Ne6 18.Rfd1+=) 
    16...Bc4+= 17.Qc4 Ne6 18.Ke2 Kh8 
       (18...Qe7 19.Rhd1=) 
       (19.Rhd1 Qe7=) 
    19...Qe7+= 20.h4 
       (20.Rhe1 a5+=) 
    20...Rad8 21.g4 
       (21.Qg4 a5+=) 
       (21...Rd6 22.Rd6 Qd6 23.Re1–/+) 
       (22.Rd1 Rd8+=) 
       (22...Rd8 23.Ke1–/+) 
    23.Kc1+= Ne5 24.Ne5 Qe5 
       (24...fe5 25.Rd1 Qf8 26.Qd5+=) 
       (25.Rd1 Kg8+=) 
       (25...c5 26.Qd7 Rb8 27.Rd1+=) 
       (26.Qf5 Qd6=) 
       (better is 26...c5+=) 
       (better is 27.Rd1 Qc4 28.Rd8 Nd8 29.Qf5=) 
    27...Qc4–+ Threatening mate: Qf1 28.Rh1 Qg4 29.h5 
       (29.Rd1 Qh4 30.Rd8 Nd8–+) 
       (29...Qf3 30.Rg1–+) 
       (better is 30.Re1–+) 
       (30...Qf1 31.Qd1 Qd1) 
    (38) Nguyen Tran Quang,Minh – Nguyen Huynh Minh,Huy
    VIE–chT Vung Tau, 2000
    1.b4 e5 2.Bb2 f6 3.a3 d5 4.e3 Be6 5.Nf3 Nd7 6.d4 e4 7.Nfd2 f5 8.c4 
       (8.Be2 Ngf6 (8...Qh4 9.c4 Ngf6 10.Nc3 f4 11.cd5 Nd5 12.0–0=
       ; 8...a5 9.b5 Bd6 10.c4 Qg5 11.0–0 f4 12.ef4=; 
       8...Nb6 9.Nb3 Qg5 10.0–0 Bd6 11.Nc5 Qh6 12.h3=) 9.c4 (
       9.0–0 a5 10.b5 Nb6 11.Nb3 Na4 12.Bc3=) 9...a5 10.b5 dc4 
       11.Bc4 Nd5 12.Qh5=) 
       (8...Ngf6 9.Be2 Be7 (9...a5 10.b5 Be7= 11.c5 0–0 12.0–0=) 
         A) 10.c5= 10...0–0 (10...c6= 11.0–0 0–0 
          12.Nc3=) 11.0–0 Qe8 12.Nc3=;
         B) 10.0–0 dc4 11.Nc4 c6 12.Nc3=; 
       8...dc4 9.Bc4 (9.Nc4 Ngf6 10.Nc3 c6 11.Be2 Be7 12.0–0=; 
       9.Qh5 g6 10.Qh3 Ngf6 11.Nc3 Bg7 12.Bc4=) 9...Bc4 10.Nc4 
       Ngf6 11.0–0 Be7 12.f3+=) 
       (9.cd5 cd5 (9...Bd5 10.Nc3= 10...Ngf6= 11.Nd5 
       Nd5 12.b5=) 10.Nb3 (10.Nc3 Ngf6= 11.Rc1 a6 
       12.Be2=) 10...b6 11.Nc3 a6 12.Rc1=; 
       9.c5 Ngf6 10.Nc3 (10.Be2 Be7= 11.0–0 Qc7 12.Nc3=/
       9) 10...Be7 11.Be2 0–0 12.0–0=; 
       9.Be2 Bd6 10.c5 Bc7 11.b5 Qg5 12.0–0=) 
    9...Ngf6 10.Qb3 
       (10.c5= 10...Be7= 11.Ne2 Bf7 12.Nf4=/
    10...Be7 11.a4 
       (11.Be2 0–0 12.0–0=) 
       (11...Rc8 12.a5+=) 
    12.c5 Nbd7 13.b5 Rb8 14.a5 Kf7 15.Qa4 Nf8 16.bc6 bc6 17.Ba3 Qc7 18.g3 g5 
    19.f4 gf4 20.ef4 h5 21.Be2 
       (21.Na2!? h4 22.Rg1 hg3 23.hg3+=) 
    21...h4+= 22.Rg1 Ng6 23.Nf1 hg3 24.hg3 Rh3 25.Bc1 Nh5 
       (25...Ke8 26.Na2 Qb7 27.Bd2+=) 
    26.Bh5 Rh5 27.Ne2 Bf6 
       (27...Ke8 28.Ne3–/+) 
       (28.g4 Rh3 29.gf5 Bf5+=) 
       (28...Ke7 29.g4 fg4 30.Nfg3+=) 
       (29.g4 Rh3 30.g5+=) 
    29...Ne7 30.Kd2 Qa6 31.Qc2 Rhh8 32.Ne3 Rh2 33.Rg2 Rg2 34.Ng2 Rh8 35.Ke3 
    Ng8 36.Kf2 Nh6 37.Ne3 Ng4 38.Ng4 fg4 39.Rg1 Bf5 40.Qd2 Qc8 41.Qe1?? 
       (41.Ke3 Ke7–/+) 
       (better is 41...e3 42.Ke3 Re8 43.Kf2 Bd3–+) 
    42.Ke3–/+ Rh2 43.Rh1 Qh8 44.Rh2 Qh2 45.Qg1 ½–½
    (39) Phan Dan Huyen – Le Thi Thu,Hien
    VIE–ch playoff (Women), 2002
    1.b4 e5 2.Bb2 f6 3.a3 d5 4.e3 Be6 5.Nf3 Nd7 6.Be2 Bd6 7.d3 Ne7 8.c4 c6 
    9.0–0 Qc7 
       (better is 9...0–0!?=) 
    10.c5+/– Nc5 11.bc5 Bc5 12.d4 Bd6 13.de5 fe5 14.Ng5 Bf5 15.Bg4 Qd7 16.Be2 
       (16.Bh5 g6 17.Be2 h6+/–) 
       (better is 16...Qc7!?=) 
    17.Nd2 Qe7 18.e4 Qg5 19.ef5 Nf4 Threatening mate... how? 20.g3 Nh3 
    21.Kg2 Nf4 22.Kh1 Ne2 23.Qe2 0–0–0 24.Qe3 Qf5 
       (better is 24...Qe3 25.fe3 c5=) 
    25.Qa7+– Qc2 26.Qa8 
       (better is 26.Rab1!? Qc5 27.Qa4+–) 
    26...Kc7+= 27.Qa5 Kd7 28.Qc3 
       (better is 28.Bc1!?+=) 
    28...Qc3+= 29.Bc3 Ra8 30.Rfe1 Rhf8 31.Kg2 
       (worse is 31.Re5 Be5 32.Be5 Rf2–+) 
    31...Rfe8 32.Nb3 g5 33.Bd2 g4 34.Reb1 Ra3 35.Ra3 Ba3 36.Na5 b5 37.Nb3 Kd6 
    38.Ba5 c5 Black prepares the advance b4@aBb5b4 39.Ra1 b4 40.Bb6 c4 
    41.Nd2 Kc6 42.Be3 Kb5 43.Nb1 d4 
       (43...Bb2 44.Ra2 c3 45.Kf1–+) 
       (better is 44.Na3 ba3 45.Ra3–+) 
    44...Bb2 45.Ra7 Rb8 
       (45...c3 46.Ra2–+) 
       (46.Rh7 b3–+) 
       (better is 46...c3 47.Rh7 cd2 48.Bd2–+) 
    47.Nb1 d3 48.Kf1?! 
       (48.Nc3 bc3 49.Kf1–+) 
    48...Bd4 49.Rh7 c3 50.Bc1 b3 51.Rg7 b2 52.Bb2 cb2 53.Rg4 Rc8 
       (53...Rc8 54.Kg2 Rc1–+) 
    (40) Bui Dac Khuong – Vo Cao Tue
    VIE–chT, 2003
    1.b4 e5 2.Bb2 Nc6 3.a3 Nf6 4.e3 Be7 5.Nf3 d6 6.d4 e4 7.Nfd2 d5 8.c4 Be6 
    9.Nc3 Qd7 10.Qc2 0–0–0 
       (10...dc4!? 11.Nc4 0–0+=) 
    11.cd5 Bd5 
       (11...Nd5 12.b5 Nb8 13.Nde4+/–) 
       (better is 12.b5 Nb8 13.Rc1+–) 
       (better is 12...Ne4 13.Ne4 Qe6+/–) 
    13.Nd6!!+– Bd6 
       (13...cd6 14.Qf5; 
       13...Rd6 14.Qf5; 
       13...Bd6 14.Qf5) 
    14.Qf5 Be6 15.Qc2 g6 
       (15...Kb8 16.Nc4+–) 
    16.e4 Be7 
       (16...Rhe8 17.b5 Nb8 18.e5+–) 
    17.d5 Nd5 
       (17...Bd5 18.ed5 Rhe8 19.Bb5 Bd6 20.Kf1 Nd5 21.Bc6 bc6 22.Qc6+–) 
       (better is 18.Bh8 Rh8 19.ed5 Bd5+–) 
       (18...Bd5 19.Bh8 Rh8+–) 
    19.Bh8 Bf5 20.Qc3 Rd6 21.Bc4 f6 22.0–0 Be6 23.Be6 
       (23.Ne4!? Bc4 24.Nd6 cd6 25.Qc4 Kd7+–) 
    23...Re6 24.Rfe1 Ne5 25.Nf3 
       (25.Qh3 f5+–) 
    25...Bd6 26.Bf6! Rf6 27.Ne5 1–0
    (41) Le Nguyen Thanh,Tra – Phan Hoang Diem,My
    VIE–ch U09 Girls, 1999
    1.b4 e5 2.Bb2 Nc6 
       (2...Bb4 3.Be5 Nf6 4.Nc3+=) 
       (3.b5 Na5 4.Be5 Nc4+=) 
       (3...d6 4.e3=) 
       (4.b5!? Na5 5.Be5+=) 
    4...d6 5.e3 Be7 6.Be2 Bf5 7.0–0 0–0 8.c4 Ne4 
       (8...e4 9.Nd4 Nd4 10.Bd4=) 
    9.d3 Ng5 10.Nbd2 Rb8 
       (10...Nf3 11.Nf3 Bf6 12.Nd2+=) 
    11.e4 Be6 12.Rc1 Nf3 13.Nf3 Bg5 14.Rc2 Qf6 15.Kh1 
       (15.d4 Nd4 16.Nd4 ed4 17.Qd4 Qd4 18.Bd4 Bf4+=) 
    15...Ne7 16.Ng5 Qg5 17.Bc1 Qf6 18.f4 Bd7 19.fe5 Qe5 20.Bf4 Qd4 21.Be3?? 
       (21.Qd2 f5+/–) 
       (better is 21...Qe3 22.c5 dc5 23.Rc5 Rbc8–+) 
       (better is 22.Qa1+=) 
    22...Ba4–/+ 23.d4 Bc2 
       (23...Qe4 24.Bd3 Qc6 25.d5–/+) 
       (24.de5? Bd1 25.Bd1 de5 26.Ba7 Rbd8–+) 
    24...Qe6 25.Rg3 
       (25.Bd3 Rbe8+=) 
       (25...f5!? 26.d5 Qe4–/+) 
    26.Bg4+= Qe7 27.h3 Rfe8 28.Bf5 Qh4 29.Bf2 Qf6 30.Qe2?? 
       (30.Rf3 Qe7–/+) 
    30...c5! 31.dc5? 
       (31.bc5 Qf5 Decoy; 
       31.dc5 Qf5 Decoy) 
       (better is 31...Qf5! 32.ef5 Re2 33.fg6 Rf2 34.gh7 Kh7 35.cd6 Rc2–+) 
    32.Bc5 Qa1 
       (32...Qf5! 33.ef5 Re2 34.fg6 Rc8 35.gh7 Kh7–/+) 
    33.Kh2+= b6 34.Bf2 Rbd8 35.Qc2 
       (35.Bg6!? hg6 36.Qe3–/+) 
    35...Rd1–+ 36.Rb3?? 
       (better is 36.Rc3 Nf4 37.Bg4–+) 
    36...Rh1 37.Kg3 Rc1 
       (better is 37...Qe5 38.Kf3 Qf4 39.Ke2 Qf5–+) 
       (better is 38.Bd4!? Rc2 39.Ba1–/+) 
    38...Qb2–+ 39.Rb2 Rc4 40.Be1 
       (40.Rd2 Rc3 41.Kh2 Ra3–+) 
       (40...Ne5 41.Bd2–+) 
       (better is 41.Bd2!? Rc7 42.Rb3–+) 
    41...Ne5 42.Re2 Ra1 43.Re3 Nc4 44.Rg3 
       (44.Rd3 Ra2 45.Kg3 g6–+) 
    44...g6 45.h4 
       (45.Bc3 Ra3 46.e5 Ne5–+) 
       (45...Nd6!? 46.Bc3 Ra3 47.Kg1–+) 
    46.h5 Rd8 
       (46...Ra2 47.Kf3–+) 
       (47.hg6 hg6 (47...fg6?! 48.Be6 Kf8 49.Rf3 Ke7 50.Bc3–/+) 48.Bg4 Nb1–+) 
    47...Ra2 48.Kf3 
    48...Rd3 49.Kf4 Rg3 50.Kg3 gf5 51.ef5 Nc2 52.Bf2 Nb4 0–1
    (42) Do Ngoc My,Le – Nguyen Thanh Ngoc
    VIE–chT (Women), 2003
    1.b4 e6 2.a3 a5 3.Bb2 Nf6 4.b5 c6 5.bc6 Nc6 6.d4 d5 7.Nf3 Be7 8.e3 0–0 
    9.Bb5 Qb6 
       (9...Ne4 10.Bd3=) 
       (10.a4 Bb4 11.c3 Be7=) 
    10...Bd7 11.0–0 Rac8 12.Qe2 Na7 13.Bd7 Nd7 ½–½
    (43) Nguyen Tran Quang,Minh – Nguyen Trung Hieu
    VIE–chT Vietnam, 2005
    1.b4 e6 2.Bb2 Nf6 3.a3 c5 4.c3 b6 
       (4...d5 5.e3+=) 
       (5.Nf3 d5+=) 
    5...d5 6.Nf3 Bb7 
       (6...Bd6 7.e3+=) 
       (7.e3 Bd6+=) 
    7...Nbd7 8.g3 
       (8.bc5 Bc5 9.e3 0–0+=) 
       (8...Bd6 9.Bg2+=) 
    9.Bg2 0–0 10.0–0 Qc8 
       (10...a6 11.bc5 Nc5 12.Rc1+=) 
       (11.bc5 Qc5 12.a4 Qa5=) 
       (11...a5 12.ba5 ba5 13.c4=) 
       (12.c4 Nef6=) 
    12...c4+= 13.dc4 de4 14.Nd4 Ne5 
       (14...Ndf6 15.f4=) 
    15.Ne4 Nc4 16.Rfe1 
       (16.Nc6 Bc6 (worse is 16...Qc6 17.Nf6 Nf6 18.Bc6 Bc6 19.Qc4+–) 17.Qc4 Bd5 
       18.Qc8 Rc8+=) 
    16...Bd5+= 17.Qc2 Qb7 18.f3 
       (18.Bc1 Rd8+=) 
       (18...a5 19.b5+=) 
    19.Nd2 Rac8 20.Nc4 Rc4 21.Qe2 Rfc8 
       (21...a6 22.Nf5+=) 
       (22.Nf5 a6+=) 
       (22...R4c7 23.Ne3+=) 
       (23.Ne3 R4c7=) 
    23...b5+= 24.Ne3 R4c7 
       (24...Qb6 25.Kh1 R4c7 26.Rcd1+=) 
       (25.a4 ba4 26.Ra1 Bc6–/+) 
    25...Qb6 26.Kh1 
       (26.Rd4 Bb3–/+) 
       (26...Bb3 27.Rd3–/+) 
       (27.Rd4 a5+=) 
    27...Bc4–/+ Black launches an attack.  28.Nc4 bc4 29.Be5 Rd7 30.f4 
       (30.Rf1 Qb5–/+) 
       (30...Rd1 31.Rd1 a5 32.Bc3–/+) 
       (31.Qf3 Nd5–/+) 
    31...Rd1 32.Qd1 Qd5 33.Kg1 a5 34.Qe1 ab4 35.ab4 Ng4 36.Bc3 Bd8 
    Threatening mate... how? 37.Bg2 Bb6 38.Kh1 Nf2 39.Qf2 Bf2 40.Bd5 ed5 
       (41.Rd1 Rd8–+) 
    41...Bb6 42.Kf3 Re8 
       (42...d4 43.Be1–+) 
    43.Bd2 f5 44.h3 Kf7 45.g4 fg4 46.hg4 Rc8 
       (46...Ra8 47.Bc3–+) 
       (47.f5 Ra8–+) 
       (47...Ra8 48.Rc2–+) 
    48.Ke4 c3 
       (48...g6 49.Bf2 Re8 50.Kf3–+) 
    49.Kd3 Ke6 50.Rc2 Kd5 51.Re2 g6 
       (51...Ra8 52.Bh4–+) 
    52.Bg3 c2 
       (52...Kc6 53.f5 gf5 54.gf5–/+) 
    53.Rc2–/+ Rc2 
       (53...Ra8 54.Be1–/+) 
    54.Kc2 Ke4 55.Kd2 
       (55.Bh2 d3 56.Kd1 Bc7–/+) 
       (55...Kf3 56.f5 gf5 57.gf5 Kg3 58.f6+–) 
    56.b5 Kf3?? 
       (56...g5 57.fg5 Bg3+=) 
    57.f5+– Ba5 58.Kd3 gf5 59.gf5 Bd8 60.Bd6 h5 
       (60...Kg4 61.f6! Bf6 62.b6+–) 
    61.f6! Bf6 Theme: Deflection from b6 62.b6 
       (62.b6 Bg5 63.b7+–) 
    (44) Nguyen Tran Quang,Minh – Thai Huy Ngoc
    VIE–ch U20 Dong Thap, 1999
    1.b4 e6 2.Bb2 Nf6 
       (2...Bb4?? 3.Bg7 Nf6 4.Bh8+–) 
    3.a3 d5 4.d4 Be7 5.Nf3 Nbd7 6.e3 0–0 7.c4 b6 8.c5 bc5 9.bc5 a5 10.Qa4 Ba6 
    11.Ba6 Ra6 12.Nbd2 c6 13.0–0 Qc7 14.Rfb1 Rb8 
       (14...Ng4 15.Bc3+=) 
    15.Bc3+= Attacks the isolani on a5 15...Rb1 16.Rb1 Qa7 17.Qb3 h6 
    18.Qb7 Kh7 19.Qc8 g6?? 
       (better is 19...Qa8 20.Qa8 Ra8+=) 
       (better is 20.Ne5!? Qa8 21.Qa8 Ra8 22.Nc6 Bd6+–) 
    20...Qa8 21.Qa8 Ra8 22.Ne5 Rb8 
       (22...Ne5 23.Re7 (23.de5?! Ng8+/–) 23...Ng8 24.Rc7+–) 
       (better is 23.Rd7!? Nd7 24.Nd7 Rc8+–) 
    23...Nb8 24.Ba5 Kg7 25.Nb3 Nfd7 26.Bc7 1–0
    (45) Nguyen Hoang Nam1 (2360) – Lu Chan Hung (2085)
    Can Tho VIE, Men Ch, 2012
    1.b4 e6 2.Bb2 Nf6 3.b5 c5 4.e3 d5 5.Nf3 Bd6 6.c4 0–0 7.Be2 Nbd7 8.0–0 Nb6 9.d3 Qe7 
    10.Nbd2 a6 11.a4 ab5 12.ab5 Bd7 13.Qc2 e5 14.cd5 Nfd5 15.Ne4 Nb4 16.Qd2 
    Ra1 17.Ra1 Bb8 18.Qc3 
       (18.d4 ed4 19.Nc5+/–) 
    18...Rc8 19.Bf1 
       (better is 19.Ra5!?=) 
    19...Bb5–/+ 20.Ra5 N6d5 21.Qa3 Ba6 22.Nfd2 h6 23.Nc4 Rc6 24.Qb3 Bc7 25.Ra1 
    Kh8 26.Ng3 Qe6 27.Qd1 Nb6 28.Na5 Rd6 29.Ne4 Rd5 30.Qh5 Qg6 
       (30...Bd3 31.Bd3 Nd3–+ (worse is 31...Rd3 32.Nc5 Qe8 33.Nd3 Nd3 34.Ba3+/–)) 
    31.Qg6–/+ fg6 32.Nb7 Bb7 33.Ra7 Nd3 34.Bc3 Ba8 
       (better is 34...c4!?+=) 
    35.Rc7+= Nc1 36.Rc5 
       (36.Nc5? Rd1 37.f3 Ne2 38.Kf2 Nc3–+) 
    36...Rd1 37.Ng3 Bb7 38.Bb2 
       (38.Be5 Nd7 39.Ra5 Ne5 40.Re5 g5+/–) 
    38...Na4+= 39.Rc1 Nb2 40.Rc2 Nd3 41.h4 
       (41.Rc3!? Ba6 42.Rc6=) 
    41...Ne1+= 42.Ra2 Ng2 43.Ra7 Bf3 44.h5 gh5 45.Rf7 Nh4 46.Kh2 e4 47.Rf8 Kh7 
    48.Bc4 g5 49.Re8 
       (49.Ra8 Bg4 50.Ra7 Kh8 51.Ra8 Kg7 52.Ra7 Kf8 53.Ra8 Ke7 54.Ra7 Kd8 
       (better is 49...Bg4 50.Nf1 Nf3 51.Kg2–+) 
       (better is 50.Re7 Kg6 51.Re6 Kg7 52.Nh5 Kf8 53.Ng3–/+) 
    50...Rh1–+ 51.Kg3 Nf5 52.Kf4 Rh5 53.Bg8 
       (53.Bd5 Nh4 54.Be4 Ng6 55.Bg6 Kg6 56.Re6 Kg7 57.Rd6–+) 
    53...Kg7 54.Be6 Kf6 55.Bb3 
       (55.Bf5 Rf5 56.Kg3 Rc5–+) 
    55...Nh4 56.Rf8 Ke7 57.Rf7 Kd6 58.Rf6 Kc5 59.Bf7 
       (59.Kg3 Ng2 60.Rf3 gf3 61.Bc2–+) 
       (59...Ng2 60.Kg3 Rh3#) 
    (46) Bui Dac Khuong – Nguyen Hoai Nam (2070)
    VIE–chT, 2003
    1.b4 f5 2.Bb2 e6 3.e3 Nf6 4.d4 Bb4 5.c3 Be7 6.Be2 d5 7.Nd2 Nbd7 8.h3 b6 
    9.Qc2 Bb7 10.g4 fg4 
    11.hg4+= Nf8 12.f3 Qd6 13.Kf2 
       (13.f4 h6+=) 
    14.g5 Nd7 15.Rh7 Rh7?? 
       (better is 15...Kf7 16.Bd3 e5–/+) 
    16.Qg6+– Kf8 
       (16...Kd8 17.Qh7 Bg5 18.Qg8 Nf8 19.Qg7 Bh4 20.Kg2 Be7+–) 
    17.Qh7 Bg5 18.f4 
       (18.Qh8 Kf7 19.Qh5 Kf6+–) 
    18...Bh6 19.Ngf3 Nf6 20.Qg6 Ke7 21.Rh1 Rf8 22.Ne5 Nd7 
       (22...a6 23.Ke1+–) 
       (better is 23.Rh6!? gh6 24.Qg7 Kd8 25.Nd7 Rf5+–) 
    23...Kd7 24.Nf3 Rf6 25.Qg3 Kc8 26.Ne5 g5 
       (26...a6 27.Ng4 Rf8 28.Nh6 gh6 29.Rh6+–) 
    27.Rh6! Rh6 28.Nf7 
       (28.Qg5?! Rh2 29.Ke1 Qf8+–; 
       28.fg5?! Rh1+/–) 
    28...Qf8 29.Nh6 Qh6 30.fg5 
       (30.Qg5 Qh7 31.Qh5 Qh5 32.Bh5 Kd7+–) 
    30...Qg6 31.Qf4 Kd7 
       (31...a6 32.Qf6 Qh7 33.g6+–) 
    32.Qf6 Qc2 33.Qf7 Kd8 34.Ba3 Ba6 35.Qe7 Kc8 36.Qe6 Kb8 37.Qg8 Bc8 38.g6 
    Qf5 39.Ke1 Qb1 40.Bd1 Qd3 
       (40...Qe4 41.Kd2 Kb7 42.Bc2 Qg2 43.Kc1 Qf1 44.Kb2 Qb5 45.Bb4+–) 
       (better is 41.Qe8 Qc3 42.Kf2 Qd2 43.Be2+–) 
       (41...Qe4 42.g7 Kb7 43.Qc8 Kc8 44.g8Q Kb7+–) 
    42.Bd2 Qd3 43.g7 
       (better is 43.Bg4! Qa6 44.g7 Qb7+–) 
    43...Qg6 44.Qf8 
       (44.Qd5?? Qg1 45.Ke2 Ba6 46.Kf3 Qh1 47.Kf4 Qd5–+) 
    44...Qg3 45.Ke2 Kb7 
       (45...Qg4 46.Kd3 Qd1+–) 
    46.g8Q Bg4 47.Kd3 Bf5 48.Kc3 
       (48.Kc3 Qg8 49.Qg8+–) 
    (47) Tran Anh Tuan – Bui Quy Hung
    VIE–ch U13 Vietnam, 2002
    1.b4 Nf6 2.Bb2 g6 3.c4 Bg7 4.d3 0–0+= 5.g3 c6 
       (5...a5 6.Qa4+= (6.b5 d5 7.Bg2 dc4 8.dc4 Qd1+=) 6...d5 7.Bg2 dc4 8.dc4 Qd7+=; 
       5...d5 6.cd5 a5 7.Bg2 ab4 8.Qb3 Qd6+=) 
       (6.Nf3 d5 7.cd5 cd5 8.Bg2 Nc6+=; 
       6.Nd2 a5 (6...d6 7.Ngf3 a5 8.ba5 Qa5=; 6...Na6 7.a3 Nc7 
       8.Bg2 d5=; 6...Qb6 7.a3 d6 8.Ngf3 a5=; 6...d5 
       7.Bg2 a5 8.b5 cb5+=) 7.Qa4 Na6 8.b5 Nc5+=) 
    6...d5 7.Nd2 Bf5 
       (7...a5 8.ba5 (8.cd5 cd5 9.b5+=) 8...Qa5=) 
    8.Ngf3= Nbd7 
       (8...a5 9.ba5 Qa5 10.0–0=) 
       (9.Nd4 Be6=) 
       (9...a5 10.a3=) 
    10.Nc4 Nb6 11.Nb6 Qb6 12.Ne5 
       (12.Bd4!? Qd8 13.Qc2=) 
    12...Qb4+= 13.Qc2 
       (13.Rb1 Qa5+=) 
       (13...Qd6 14.Nc4 Qd7 15.Rab1+=) 
    14.Nc4 Qc7 
       (14...Qd8 15.Rab1 Bc8 16.Be5+=) 
       (better is 15.Be5 Qd8 16.Rab1+=) 
       (better is 15...Bc8+=) 
    16.Bg7+– Kg7 17.Qb2 
       (17.e4 b5 18.Nd2+– (18.ed5?! bc4 19.Qc4 c5+/–)) 
    17...Nf6+/– 18.Qb7 ½–½
    (48) Pham,Xuan Dat (2215) – Nguyen,Huynh Tuan Hai (1850)
    Ho Chi Minh VIE, Men Ch, 2013
    1.d4 Nf6 2.c4 g6 3.Nf3 Bg7 4.Nc3 d5 5.e3 0–0 6.b4 c6 7.Bb2 Be6 8.c5 Nbd7 9.Be2N 
    Bg4 10.0–0 Qc7 11.a4 e5 12.h3 Be6 13.b5 e4 14.Nd2 Ne8 15.a5 Qc8 16.a6 b6 
       (better is 16...cb5!? 17.Bb5 Nc7 18.Bd7 Bd7+=) 
    17.cb6+/– ab6 18.bc6 Qc6 19.Rc1 Qd6 20.Qb3 Qe7 21.Bg4 
       (21.Ba3 Qg5 22.Bg4 Ra6 23.Be6 Ra3 24.Bf7 Rf7 25.Qa3 Nef6+–) 
       (better is 21...Ra6 22.Nd5 Bd5 23.Qd5 Nef6=) 
       (22.Nd5? Qf7 23.Be2 Bd5–+) 
    22...Qh4 23.Be2 f4 24.Nce4 
       (better is 24.Bf8 Nf8 25.Bg4+– (worse is 25.Qb6 Bh6+–; 25.Nd5?! f3 26.gf3 Qg5 
       27.Kh2 Bd5 28.Qb6 Nf6+–)) 
       (24...fe3 25.Bg4 Bf7 26.Bd7 ed2 27.Nd2 Ra6 28.Bf8 Bf8 29.Be8 Be8 
       30.Qd5 Bf7+–) 
       (25.Bf8 fe2 26.Rfe1 Nf8=) 
    25...Qe4 26.Bd3 
       (26.Bd3 Qf3 27.gf3 Rf3 28.Rc6+–) 
    (49) Luong Phuong Hanh – Nguyen Phu Ngoc,Thien
    VIE–ch U17 Girls, 1999
    1.e4 c5 2.b4 cb4 3.a3 ba3 4.Na3 Nc6 5.Bb2 d6 6.Bc4 e6 7.Qe2 
    Nf6 8.Nb5 Be7 9.Nf3 0–0 10.0–0 d5 11.ed5 ed5 12.Bb3 Bg4 13.Qd3 a6 
    14.Nbd4 Bf3 15.Qf3 Nd4 16.Bd4 Ne4 17.Qe3 Bf6 18.Bb6 Qd7 
       (better is 18...Qd6!? 19.Ra5 Nd2 20.Qd2 Qb6 21.Rd5 a5–/+) 
    19.Ra5= Ng5 20.Rd5 Qe6 
    21.Qe6 fe6 22.Rd7 Rf7 23.Rf7 Kf7 24.Re1 a5 25.f4 Ra6 26.fg5 Rb6 27.gf6 
    Kf6 28.d4 Rd6 29.Re5 a4 30.Ba4 Rd4 31.Ra5 e5 32.c3 Rc4 33.Bb3 Rc3 34.Rb5 
    e4 35.Kf2 Rd3 36.Ke2 Rc3 37.Rb7 Ke5 38.Rb5 Kd6 39.Bd1 Ra3 40.Bb3 Ra1 
    41.Rd5 Ke7 42.Re5 Kf6 43.Re4 1–0
    (50) Nguyen Quang Duc – Nguyen Ngoc Phung (2130)
    ch–VIE, Cao Lanh Dong Thap VIE, 2006
    1.e4 c5 2.b4 cb4 3.a3 e6 4.ab4 Bb4 5.c3 Be7 6.d4 Nf6 7.Bd3 d5 8.e5 Nfd7 
    9.Qg4N Kf8 10.Nf3 Nc6 11.h4 
       (11.0–0 h5 (11...f6 12.Qf4 Kg8 13.ef6 Nf6 14.Ba3 a5 15.Nbd2) 12.Qh3 
       (12.Qf4 h4 13.Ba3 Kg8 14.Nbd2 Ba3 15.Ra3) 12...h4= (12...a5 13.Na3 
       g5 14.g4 f5 15.ef6) 13.Na3 Nb6 14.Bd2 a5 15.Qg4; 
       11.Qf4 a5 12.0–0 a4 13.Ba3 h6 14.Nbd2 Ba3 15.Ra3) 
       (11...f6 12.ef6 (12.Qf4 Kg8 13.ef6 Bf6 14.Qd6 Qe7 15.Qe7) 12...Nf6 
       13.Qf4= Kg8 14.Ba3 Nh5 15.Qe3) 
       (12.0–0 f6 13.Qf4 Kg8 14.ef6 Nf6 15.Ba3) 
       (12...Qe8 13.Nh7 Kg8 14.Ng5+/– f5 15.Qg3; 
       12...Kg8 13.0–0 Qe8 14.h5 f5 15.Qg3) 
       (13.Nh7 Kg8 14.Bh6 Bf8 15.Bg5+= (15.Nf8 Rh6 16.Nd7 Bd7+=)) 
    13...Kf7= 14.Qg6 
       (better is 14.Bg6 Kf8 15.Qf3= (15.Qf4 Bf6 16.ef6 Qf6 17.Qd6 Kg8 
    14...Kf8–/+ 15.Rh3 
    15...Nde5! 16.de5 Ne5 17.Qh5 Nd3 18.Rd3 Bf6 
       (18...Ra8 19.c4–+) 
    19.Ra7 Qb6 
       (19...Bh4?! 20.Qf3 Ke8 21.Bf4=) 
    20.Ra1 Bd7 
       (20...Kg8 21.Rf3 Qc7 22.Bg5–/+) 
    21.Rg3 ½–½
    (51) Phan Hung,Chi – Bui Vinh
    VIE–ch Can Tho, 1999
    1.e4 c5 2.b4 cb4 3.d4 d5 4.e5 Nc6 5.a3 Bf5 6.Ne2 e6 7.Ng3 Bg6 8.ab4 Bb4 
    9.c3 Ba5 10.Bd3 Nge7 11.0–0 0–0 12.Ba3 Re8 13.f4 a6 14.f5 Nf5 15.Nf5 ef5 
    16.Bf5 Bf5 17.Rf5 Qd7 18.Qd3 Bb6 19.Kh1 f6! 20.Nd2 
       (20.ef6 Qf5 Decoy) 
    20...fe5–+ 21.Qh3 Rad8 22.Raf1 h6 23.de5 Ne5 
       (23...Re5 24.Rf8 Kh7 25.Qd3 g6 26.R1f7 Qf7 27.Rf7 Kh8 28.Qg6 Re1 
       29.Nf1 Rf1 30.Rf1 Bf2 31.Rf2 Ne5 32.Qh6 Kg8 33.Qg5 Kh8 34.Qe5 Kg8 
       35.Qg5 Kh8 36.Rf7 d4 37.Qd8) 
    24.Qh4 Be3 25.Nb3 Bg5 26.Qd4? 
       (better is 26.Qg3 Nc4 27.Bc5–+) 
    26...Nc4 27.Rg5 hg5 
       (27...Na3?! 28.Rg3–+) 
    28.Bc1 Rf8 29.Rg1 g4 30.Bg5 Rde8 31.Nc5 Qf5 32.Bh4 Rf7 33.Bg3 
       (33.Rd1 Ne3 34.Rg1 Qh5–+) 
       (better is 33...Re3 34.Bb8 b6 35.Na6–+) 
    34.Qd1 Re3 35.Bh4 
       (35.Be1 b6 36.Bd2 bc5 37.Be3 Ne3–+) 
    35...b6 36.Nb3 Rc3 37.Nd4 Qe4 38.Ne2 Rd3 39.Qc2 Rd2 
       (better is 39...Ne3!? 40.Ng3 Nc2 41.Ne4 de4 42.Rc1–+) 
    40.Qe4 de4 41.Nc3 e3 42.Bg5 Rc2 43.Nd5 0–1
    (52) Nguyen Quang Duc – Lu Chan Hung
    ch–VIE, Cao Lanh Dong Thap VIE (7), 2006
    1.e4 c5 2.b4 d6 3.bc5 dc5 4.Bb2 Nc6 5.Bc4N Qc7 6.Nf3 
         A) 6...Nf6 7.Nf3 (7.Rb1 Nd4 8.Nge2 e6 9.0–0 Be7 10.f4 0–0 11.e5) 
          7...Bg4 8.h3 Bf3 9.Qf3 Nd4 10.Qd3 0–0–0 11.0–0;
         B) 6...Qb6 7.Rb1 Qb4 8.Bd3 Nf6 9.Nge2 c4 10.Ba1 cd3 11.Rb4) 
       (better is 6...Nf6!? 7.Nc3 (7.0–0 Bg4 8.h3 Bh5 9.e5 Qb6 10.ef6 Qb2 11.Nc3) 
       7...Bg4+= 8.h3 Bh5 9.0–0 0–0–0 10.g4 Bg6 11.Qe2; 
       6...Qb6 7.Bc1 (7.Ba3 Nf6 8.Nc3 Qa5 9.Qc1 Nd4 10.0–0 b5 11.Nd4; 7.Qc1 
       Nf6 8.Nc3 Nd4 9.d3 Nf3 10.gf3 Be6 11.Be6; 7.Bc3 Nf6 8.d3 e6 9.Nbd2 
       Be7 10.0–0 0–0 11.Ne5) 7...Nf6 8.Nc3 Qb4 9.Qe2 Nd4 10.Nd4 cd4 11.Rb1; 
       6...Qf4 7.Nc3 (7.d3 Nf6 8.Nbd2 Bg4 9.0–0 Nd4 10.Bd4 cd4 11.h3; 7.0–0 
       Bg4 8.Nc3 Nf6 9.g3 Qf3 10.Be2 Nd4 11.Bf3) 7...Bg4 8.h3 Bf3 9.Qf3 Qf3 
       10.gf3 e6 11.Rg1) 
    7.Bf7!+– Kf7 8.Ng5 Ke8 
       (8...Kg6 9.Qg4 Nh6 10.Qe6 Kh5 11.Nf7) 
    9.Qg4 Nf6 
       (9...Qb6 10.Bc3 Nd4 11.Na3) 
       (10.Qf5 Qb6 11.Bc3) 
       (10...Qf4 11.Qf7 Kd7 12.Bf6+–) 
    11.Qc4+– e5 12.Nc3 Be7 
       (12...Qd7 13.Nd5 Bd6 14.0–0+–) 
    13.Nb5 Qb8 14.Ne6 Ne6 15.Qe6 Nd7 16.0–0–0 
       (better is 16.f4!? a6 17.Na3+–) 
    16...a6+/– 17.Nc3 Rf8 
       (17...Qd6 18.Qh3+/–) 
    18.Nd5 Qd6 19.Qd6 
       (19.Qg4 g6+/–) 
    19...Bd6 20.f3 
       (20.f4 Rb8+/–) 
    20...b5 21.d3 
       (21.Ne3 g6+/–) 
       (21...Nf6 22.Ne3+/–) 
       (22.Kd2 Nf6+/–) 
    22...b4 23.Rhf1 g5 
       (23...a4 24.Kd2+/–) 
    24...a4+= 25.f4 
       (25...gf4 26.gf4 ef4 27.e5+/–) 
       (26.Be5 Ne5 27.fe5 Be5 28.Rf8 Kf8 29.Rf1 Kg7+–) 
    26...gf4 27.gf4 ef4 
       (27...b3 28.f5 b2 29.Bb2 ab2 30.Kb2+/–) 
    28.e5! Bb8 
       (28...Be5 29.Be5 Combination; 
       28...Ne5 29.Nf4 Decoy (29.Nf4 Interception)) 
       (better is 29.Rde1!? b3 30.ab3+/–) 
       (29...b3 30.ab3 Ne5 31.Rde1+=) 
       (30.Nh5 Rf1 (30...Ne5? 31.Rfe1+–) 31.Rf1 b3 (worse is 31...Be5 32.Re1+/–; 
       worse is 31...Ne5 32.Be5 Be5 33.Re1+/–) 32.ab3 Be5=) 
       (30...Rh6 31.h3=) 
    31.Rde1 Rf5 32.Nd5 
       (32.d4 cd4 33.Bd4 Rh6=) 
    32...Rf1 33.Rf1 Re6 34.Nf6 
       (34.h3 h6=) 
    34...Ke7 35.Ne4 
       (35.Nd5 Kd6=) 
       (35...Nc4 36.Rf6 Ne3 37.Kd2=) 
       (36.Kb3 Bd6+=) 
    36...Rg6 37.Re1 Re6 38.Rg1 Rg6 39.Kb3 Bh2 40.Rg2 Bd6 41.d4 cd4 42.Bd4 Ne5 
       (43.Rg6 hg6 44.c5+=) 
       (43...Ke6 44.Rh7 Nc6 45.Bc5 Bc5 46.Nc5 Kd6 47.Nb7 Ke6 48.Rc7+=) 
       (better is 44.Nd6!? Kd6 45.c5 Kd5 46.Be5 Ke5 47.Rh5 Kf4 48.Kb4+/–) 
    44...Bc7= 45.Kb4?? 
       (better is 45.Be5 Be5 46.Rc2=) 
    45...Nc6–+ 46.Kc4 
       (46.Ka3 Bh2 (46...Nd4?! 47.Rh3–+) 47.Bf2 Rg4–+) 
    46...Bh2 47.Be3 
       (47.Bc3 Rg2 48.Kb3 Ke6–+) 
       (better is 47...Rg4!? 48.Bh6 Re4 49.Kd5–+) 
       (48.Nc3 Be5 (worse is 48...Re3 49.Nd5 Ke6 50.Ne3–+) 49.Nd5 Kd8–+) 
    48...Bd6 49.cd6 Kd6 50.Bc5 Kc7 51.Ba3 h5 0–1
    (53) Pham,Anh Trung (1860) – Le,Quang Long (1925)
    Ho Chi Minh VIE, Ch U17 (b), 2014
    1.Nf3 f5 2.b4 e6 3.Bb2 Nf6 4.a3 b6 5.d3 Bb7 6.Nbd2 Nc6 7.g3 d5 
       (7...Be7 8.Bg2=) 
    8.Bg2 Bd6 9.c4 Qd7 10.Qc2 Be7 
    11.0–0 h6? 
       (better is 11...0–0+/–) 
    12.b5+– Nd8 13.Rac1 
       (13.Ne5 Qd6 14.Ng6 Rh7+–) 
       (13...0–0 14.Ne5 Qe8 15.d4+/–) 
       (better is 14.Ne5 Qd6 15.cd5 ed5 16.Ng6+–) 
    14...Nf7 15.Qa4 
       (15.e4 de4 16.de4 fe4+–) 
       (15...a6 16.Nh4 ab5 17.cb5+=) 
       (16.cd5 ed5 17.e4 fe4 18.de4+/–) 
       (better is 16...c6+=) 
    17.cd5+– ed5 18.Qb3?? 
       (better is 18.e4!? fe4 19.de4+–) 
       (18...0–0 19.e4 fe4 20.de4+/–) 
    19.a4+= Qe6 20.e4 c4 21.Nd4 
       (21.dc4 de4 22.Ne5 0–0+/–) 
       (21...cb3!? 22.Ne6 fe4 23.Nb3 Kf7=) 
    22.dc4 dc4? 
       (better is 22...de4 23.Ba3 0–0+/–) 
    23.Nc4+– Nc4 24.Nc6 Bc6 25.Rd7 
       (better is 25.Bf6 gf6 26.bc6 Qc6 27.e5+–) 
    25...Bd7+/– 26.e5 
       (better is 26.Bf6 gf6 27.ef5+/–) 
    26...Ne4+= 27.Bd4 
       (better is 27.e6 Be6 28.Be4 fe4 29.Re4=) 
       (better is 27...Bb4 28.Re2 Ned2–/+) 
    28.Qd1+= Be6 29.Qh5 Kf8?? 
       (better is 29...Bf7 30.Qf5 0–0+=) 
    30.Bd5! Bd5 31.Qf5 Bf7?? 
       (31...Kg8 32.Qc8 Kh7 33.Qf5 Kg8+–) 
    32.Qc8 Be8 33.Qf5 Kg8 34.Kg2 
       (better is 34.Rc1 Ba3 35.Rc4 Nc4+–) 
       (34...h5 35.Rc1 Rh6 36.Qc8+–) 
       (better is 35.Qe6 Kf8 36.Rc1+–) 
       (35...Kf8 36.Rc1 Rh7+–) 
    36.Qb7 Rf8 37.Qe7 Kg8 38.e6 Rf2 
       (38...Bc6 39.bc6 Ne3 40.Re3 Rf2 41.Kf2 Ne4 42.Re4 b5 43.Qf7) 
       (39.Kf2 Ne4 40.Re4 Ne5 41.Be5 Bb5 42.Qf7) 
    39...Rh2 40.Kg4 h5 
       (40...Ne3 41.Re3 h5 42.Kg5 Ne4 43.Re4 Bb5 44.Qf7) 
    41.Kg5 Nf3 
       (41...Ne5 42.Be5 Nf3 43.Kh6 Ne1 44.Qe8) 
    42.Kf6 Nd4 
       (42...Bf7 43.ef7 Kh7 44.f8Q) 
    43.Qg7 1–0
    (54) Nguyen Huynh Minh,Huy (2500) – Duong Thuong Cong (2000)
    VIE–chT Nha Trang, 2009
    1.Nf3 Nf6 2.c4 g6 3.b4 d5 4.e3 Bg7 5.Bb2 c6 6.Be2 0–0 7.0–0 Na6 8.a3 Nc7 
    9.Nc3 Re8 10.d4 h6 11.Rc1 Be6 12.Nd2 a5 13.ba5 Ra5 14.Nb3 Ra7 15.Nc5 Bf5 
    16.cd5 b6 17.Nd3 Ncd5 18.Ne5 Qa8 19.Bf3 Nc3 20.Rc3 Ne4 21.Rc4 Be5 22.de5 
    Nc5 23.Rh4 Nd3 
       (23...Rd8 24.Qc1 Kg7 25.Bd4=) 
       (24.Qd2 Nb2 25.Qb2 Kg7+/–) 
    24...Ra3+= 25.Rh6 Kg7 26.Rh4 Nc5 
       (26...b5 27.g4 Be6 28.Be4+=) 
       (27.e4!? Be6 28.Qc1+/–) 
    27...Rd8 28.Qd2 Nb3 29.Qb4 Nd4 30.ed4 c5?? 
       (30...Ra1 31.g3 Rf1 32.Kf1 Qa7 33.Bc6 g5=) 
       (31.Qd2 Rh8 32.Ba8 Rh4 33.dc5 Ra8 34.cb6+–; 
       31.Ba8 cb4 32.Bb7 g5–+; 
       31.dc5?! Rf3 32.gf3 Qf3 33.cb6 Bh3+/–) 
    (55) Vidit,S (2355) – Zhou Yang Fan
    WYCC Boys U14, Vung Tau City VIE, 2008
    1.Nf3 Nf6 2.c4 g6 3.b4 d6 4.d4 Nbd7 5.Bb2 e5 6.e3 c6 7.Nc3 Bg7 8.Be2 0–0 9.Qb3 a6N 
    10.a4 a5 11.b5 ed4 12.ed4 Re8 13.0–0 Nh5 14.Rfe1 Ndf6 15.Bc1 d5 16.cd5 
    Nd5 17.Nd5 Be6 18.Bc4 White intends b6 18...cd5 19.Bf1 Nf6 20.Bf4 Ne4 
    21.Rac1 f6 22.b6 g5 23.Bc7 Qe7 24.h3 h5 
       (24...Qb4 25.Qb4 ab4 26.Bb5+=) 
    25.Bb5+/– Rf8 26.Nh2 f5 27.Be5 Rac8 28.Bg7 Qg7 29.Nf3 g4 30.Ne5 f4? 
       (better is 30...Qh6 31.Rc7 Rc7 32.bc7 Rc8 33.hg4 hg4+=) 
    31.Rc8 Rc8 32.Bd7!! Bd7 33.Qd5 Kh8 34.Qd7 
       (better is 34.Qe4!? Be8 35.hg4 hg4+–) 
    34...Qd7 35.Nd7 g3 36.fg3 fg3 37.Nc5 
       (37.Kf1 Rd8 38.Re4 Rd7+–) 
       (37...Nc5 38.Rc1 (worse is 38.dc5 Rc5 39.Re8 Kg7=) 38...Rd8 39.Rc5 Rd4 
       40.Rh5 Kg7 41.Rg5 Kf6 42.Rg3 Ra4 43.Rf3 Ke6 44.g4+/–) 
       (better is 38.Re5 Rc6 39.Rh5 Kg7 40.Rg5 Rg6 41.Rg6 Kg6 42.Nb7+–) 
    38...Nc4+/– 39.Re6 Rd8 40.Rh6 Kg7 
       (better is 40...Kg8!? 41.Rg6 Kf7 42.Rg3 Rd4+/–) 
       (41.Nb7?? Re8 42.Rh7 Kh7 43.Kf1 Nd2 44.Kg1 Re1) 
    41...Kf6 42.Ne4 
       (42.Nb7 Rd4 43.Kf1 Re4 44.Rh6 Kg7–/+) 
    42...Kg6 43.Rg5 
       (worse is 43.Ng3 Rd4 44.Rg5 Kf7+–) 
    43...Kf7 44.Ng3 
       (44.Rg3?! Rd4 45.Rf3 Kg6 46.Rf6 Kg7+/–) 
    44...Rd4 45.h5 Rd1 46.Kh2 Ne3 
       (46...Rd4 47.Rb5+–) 
       (47.Ra5 Ng4 48.Kh3 Nf2 49.Kh4 Rd4 50.Kg5 Ke6+–) 
    47...Rd5 48.Ne4 Rg5 49.Ng5 Kf6 50.Ne4 Kf5 51.Nd6 Kg5 52.g4 Nd5 53.Kg3 
       (53.Ne4!? Kh6+–) 
    53...Nb6 54.Ne4 
       (54.Nb7 Na4 55.h6 Kh6+=) 
    54...Kh6 55.Kh4 Na4 
       (55...Nc4 56.g5 Kg7 57.Kg4+–) 
    56.g5 Kg7 57.g6 Kh6 
       (57...Nc3 58.Nc3 Kh6 59.Nb5+–) 
       (58.Nd6 Kg7 59.Ne8 Kg8 60.h6+–) 
    (56) Tu Hoang Thong (2510) – Nguyen Anh Dung (2555)    (A15)
    VIE–ch Can Tho (5), 2001
    1.Nf3 Nf6 2.c4 g6 3.b4 Bg7 4.Bb2 0–0 5.e3 d6 6.Be2 e5 7.d3 Nc6 8.b5 Ne7 9.Nbd2 
    Nd7 10.Qc2 f5 
       (10...a6 11.b6=) 
    11.0–0 h6 Prevents intrusion on g5 
       (11...a6 12.Rac1+=) 
       (12.h3 Rb8+=) 
       (12...a6 13.a4+=) 
    13.Nfd2 Kh7 
       (13...c6 14.Rfc1=) 
    14.Rfe1 Be6 15.a4 Rc8 
       (15...c5 16.h3+=) 
       (16.d4 e4+=) 
    16...b6 17.a5 g5 
       (17...c6 18.bc6 Nc6 19.ab6 ab6 20.g3+=) 
    18.ab6 ab6 19.Be2 
       (19.h3 Kg8+/–) 
       (19...Ra8 20.Ra8 Qa8 21.Ra1+=) 
    20.d4 ½–½
    (57) Tu Hoang Thong (2430) – Ju Wenjun (2525)
    Ho Chi Minh City VIE, Asian Ch, 2012
    1.Nf3 Nf6 2.c4 g6 3.b4 Bg7 4.Bb2 0–0 5.g3 d6 6.Bg2 e5 7.d3 h6 8.0–0 Be6 9.Nbd2 Nbd7 
    10.Qc2 Rb8 11.c5 Nd5 12.a3 f5 13.e4 Ne7 14.cd6 cd6 15.Rac1 Rc8 16.Qa4 Nc6 
    17.Nh4 Kh7 18.ef5 gf5 
       (worse is 18...Bf5 19.Bc6 Rc6 20.Rc6 bc6 21.Nf5 Rf5 22.Qc6+/–) 
    19.b5 Qa5 20.Qa5 Na5 21.Bc3 b6 22.Ba5 ba5 23.Rc6 Nc5 24.Nc4 Rc6 
       (worse is 24...Nd3 25.Nd6 Rc6 26.bc6+– (26.Bc6?! Nc5+=)) 
       (worse is 25.Bc6 d5 (worse is 25...Nd3 26.Nd6 Nc5 27.Bg2+=) 26.d4 ed4 27.Na5 d3=) 
    25...e4 26.Nd6 Be5 27.Nc4 Nd3 28.Ne5 Ne5 29.Rc1 Rc8 30.c7 Kg7 31.g4! fg4 
       (31...Ng4 32.f3 Double attack (32.f3 Decoy); 
       31...fg4 32.Be4 Deflection) 
    32.Be4 Nc4 33.Bf5 Bf5 34.Nf5 Kf6 35.Rc4 Kf5 36.Kg2 Ke6 37.Kg3 Kd7 38.Kg4 
    Rg8 39.Kh5 Kc8 40.h4 Rg2 41.f4 1–0
    (58) Tu Hoang Thong (2485) – Hoang Canh,H (2145)
    ch–VIE Prelim, Hue VIE (3), 2005
    1.Nf3 Nf6 2.c4 g6 3.b4 Bg7 4.Bb2 d6 5.d4 0–0 6.e3 Nbd7 7.Be2 e5 8.de5 Ng4 
    9.Nc3 Nde5 10.Ne5 Ne5 11.0–0 Be6 12.Qb3 c6 13.f4 Ng4N 14.Bg4 
         A) 14...Bf5 
            A1) 15.Bg4 Bb2 (15...Be4 16.Bf3 Bb2 17.Qb2 Qe7 18.Rad1 Rad8 
             19.Be4 Qe4 20.Qd4 Rfe8) 16.Qb2 Be4 17.Bf3 Qe7 18.Qd4 Rfe8 
             19.Rac1 Rad8 20.b5 d5;
            A2) 15.Bg7 Kg7 16.Qc3 Kg8 17.Ng3 Qf6 18.Qd2 Nh2 19.Rfd1 Bg4 
             20.Kh2 Qh4;
         B) 14...Bb2 15.Qb2 Bf5 16.Bg4 Be4 17.Bf3 Qe7 18.Rad1 Rad8 19.Qc3 
          Rfe8 20.Rd4 Qf6) 
    14...Bg4 15.Ne4 Bb2 
       (15...Re8 16.Bg7 Re4 17.Bd4 Qe7 18.Qb2 Re8 19.Rab1 b6 20.h3 Be6; 
       15...d5 16.Bg7 Kg7 17.cd5 cd5 18.Nc5 b6 19.Nd3 f6 20.Rac1 Qd6) 
    16.Qb2 f6 
       (16...f5 17.Nf2= Qf6 18.Qd2 Qe6 19.Rac1 Rad8 20.Ng4 fg4) 
    17.Qd4+= d5 18.cd5 cd5 19.Ng3 
       (19.Nc3 Be6 20.Rad1 Re8) 
       (19...Re8 20.f5 Bf5 21.Nf5+/–; 
       19...Qd7 20.h3 Be6) 
    20.Qd5+/– Be6 
       (21.Qd4 Qd4 22.ed4 Rfd8+/–) 
    21...f5 22.Kh1 
       (22.a3 Rad8 23.Rad1 Bb3 24.Rd8 Rd8+=) 
    22...Rad8= 23.e4 fe4 24.Qe4 Rd4 25.Qe5 Bc4 26.Rf2 Rfd8 
       (26...Qf6 27.Qf6 Rf6 28.a3=) 
    27.Qe1+= Qd6 28.Ne4 Qe7 29.Nc3 Qe1 
       (29...Qb4!? 30.Rb1 Qa5+=) 
    30.Re1+= Bf7 31.a3 Rd3 32.Nb1 Bc4 33.Rc2 R8d4 34.g3 Kf7 35.Kg1 h5 36.Kf2 
    b5 37.Rc3 Rc3 38.Nc3 Rd2 39.Kf3 
    39...Rh2= 40.Re5 a6 41.Ne4 Ra2 42.Nd6 Kf6 
       (42...Kg7!? 43.Nc4 bc4=) 
    43.Nc4+= bc4 44.Ra5 c3 45.Ra6 Kf5 46.Ra5 Kf6 47.Ke3 
    47...Rg2= 48.Kf3 Ra2 49.Ke3 
    49...Rg2= 50.Kf3 Ra2 ½–½

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