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Isolina MAJUL MARTINEZ

of Colombia

(2015-12-01)
(All annotations below by Fritz)
(Games' source: Marek's 1.b4 database)




(1) Leon Manas,J (1695) – Majul,Isolina (2090)
4th Pedro Montalvo Mem, 2011

1.b4 e5 2.b5 d5 3.Bb2 Nd7 4.e3 Ngf6 5.Nf3 Bd6 6.c4 
   (6.d4 Qe7 7.de5 Ne5 8.Nbd2 0–0 9.Be2 Re8 10.Ne5 Be5 11.Be5 Qe5 12.0–0 
   Qc3 13.Nb3 Bf5 14.Nd4 Be4 15.Qe1 Qc5 16.Qd2 Bg6 17.f3 Qe7 18.Kf2 Qe5 
   19.g3 Qd6 20.Rfe1 Nd7 Spicak,K (2280)–Malevinsky,A (2390)/Polanica 
   Zdroj op 1992/0–1 (47)) 
6...c6 7.a4 0–0 8.Qc2N 
   (8.d4 e4 9.Nfd2 a6 10.Qb3 ab5 11.ab5 Ra1 12.Ba1 Qa5 13.Bb2 Bb4 14.Nc3 
   c5 15.Be2 Nb6 16.0–0 dc4 17.Nc4 Nc4 18.Bc4 b6 19.dc5 bc5 20.Nd5 Nd5 
   21.Bd5 Qb5 22.Be4 Qe2 carocan (1630)–stiloz/kurnik 2011/1–0 (44)) 
8...e4 9.Nd4 Ne5 10.c5 Bc7 11.h3 Ne8 12.Nc3 f5 
   (12...Qe7 13.f3+=) 
13.g3 
   (13.Be2 Qe7=) 
13...g6 
   (13...Qe7 14.Nd1+=) 
14.Na2 a5 15.Qc3 Qf6 16.b6 Bb8 17.Nc1 Ng7 18.Ncb3 Ne6 19.Be2 
   (worse is 19.Na5 Nd4 20.ed4 Nf3 21.Kd1 f4–/+) 
19...Ng5 20.Na5 Ra5? 
   (better is 20...h6+/–) 
21.Qa5+– Nef3 22.Bf3 
   (22.Kd1 Nd4 23.Bd4 Be5 24.Be5 Qe5+–) 
22...Nf3 23.Ke2 
   (23.Kd1 Be5 24.Qb4 Nd4 25.Bd4 f4+–) 
23...f4 24.gf4 Bf4 25.Qb4 
   (25.ef4 Nd4 26.Kf1 Qf4 27.Bd4+/–) 
25...Be5+= 26.Kd1 Ng5 27.h4 
   (27.Kc2!?+=) 
27...Nh3= 28.Kc2 Nf2 29.Rhf1 Bh3 30.Rg1 Nd3 31.Qc3 Qh4 32.a5 Qf2 33.Rgd1 
h5 34.a6 ba6 35.Ra6 Bf1 36.Raa1 Qg2 37.b7 h4 38.Ra8 Qf2 
   (38...Be2 39.Ne2 Qe2+–) 
39.Rf8 
   (39.Ne6 Be2 40.Rb1+–) 
39...Qf8+/– 40.Qa5 
   (better is 40.b8Q!? Qb8 41.Rf1+/–) 
40...Nc5= 41.Rf1 Qf1 42.Qc5 Qd3 43.Kd1 h3 44.Qc6 Qf1 45.Kc2 Qc4?? 
   (better is 45...Qd3 46.Kc1 Qf1 47.Kc2 Qd3 48.Kd1 Qf1 49.Kc2=) 
46.Qc4+– dc4 47.Nc6 Bc7 48.Be5 h2 49.Bh2! Bh2 50.b8Q 
   (better is 50.Kc3!? Kf7+–) 
50...Bb8 51.Nb8 Kf7 52.Nd7 g5 53.Ne5 
   (better is 53.Nc5 g4 54.Ne4 Ke6+–) 
53...Ke6 54.Ng4 Kd5 55.Kc3 Kc5 56.Nf6 Kb5 57.Ne4 g4 58.Ng3 1–0



(2) Majul,Isolina (2045) – Buitrago,Shirley
COL–ch (Women), 1998

1.b4 e5 2.Bb2 d6 3.c4 Nd7 4.g3 Ngf6 5.d3 c6 
   (5...d5 6.a3 
     A) 6...c5 7.b5 (7.Qa4 dc4 8.dc4 Bd6 9.Nc3 0–0 10.Nb5 Be7–/+/
      10) 7...dc4 8.dc4 a6 9.Nf3 e4 10.Nfd2 e3+=;
     B) 6...dc4 7.dc4 a5 8.Qa4 b5 9.Qb5 ab4 10.Nf3 Rb8+=) 
6.Bg2 
   (6.Nf3 Qb6 (6...a5 7.b5 cb5 8.cb5 Qb6 9.a4 d5 10.Bg2 Bb4=
   ) 7.Qd2 e4 8.Ng5 ed3 9.ed3 Be7 10.Bh3 0–0+=) 
6...Be7 
   (6...d5 7.a3 d4 8.Nf3 a5 9.Qa4 Rb8 10.0–0 ab4+=) 
7.Nf3 
   (7.a3 Qb6 8.Nf3 a5 9.Qd2 ab4 10.Qb4 Qc7+=) 
7...Qc7 
   (7...Qb6 8.Bc3 d5 9.0–0 d4 10.c5 Qc7+=) 
8.Qc2 
   (8.0–0 0–0 9.Nc3 d5 10.cd5 cd5=) 
8...Nf8 
   (8...Qb6 9.Bc3 d5 10.a3 d4+=) 
9.0–0 Ng6 
   (9...a5 10.d4 e4=) 
10.Nbd2 0–0 11.a4 d5 12.cd5 Nd5 13.b5 Bd7 
   (13...Be6 14.Nc4 f6 15.Rfc1=) 
14.bc6 
   (14.Ne5!? Ne5 15.Bd5+/–) 
14...Nb4= 15.Qc3 Nc6 16.Ba3 Rac8 17.Rac1 Qd8 18.Qb2 Rc7 19.Ne4 Bc8 20.h4 
Re8 
   (20...Ba3 21.Qa3 Bg4 22.Qb2+=) 
21.Rc2 Nf8 22.Rfc1 Ne6 23.Be7 Rce7 
   (23...Ree7 24.Ne5 Ne5 25.Qe5 Rc2 26.Rc2+/–) 
24.Qa3 
   (24.Ne5 Ned4 25.Nc6 Nc6 26.Rc5+/–) 
24...f6? 
   (better is 24...Rc7=) 
25.Nd6+– Rf8? 
   (better is 25...Bd7 26.Ne8 Be8+–) 
26.Nc8 Qc8 27.Rc6! bc6 
   (27...bc6 28.Qd6 (28.Qe7); 
   27...Qc6 28.Qe7) 
28.Qe7 Rf7 29.Qd6 Nd8 30.Nd2 
   (30.Nd2 Rd7 31.Qc5+–) 
1–0




(3) Majul,Isolina – Carvalho,Alda
32nd Chess Olympiad Yerevan, 1996

1.b4 e5 2.Bb2 d6 3.c4 Nf6 4.g3 g6 5.Bg2 Bg7 6.d3 0–0 7.Nf3 c6 8.0–0 Nbd7 
9.a4 Re8 10.Nbd2 Nf8 
   (10...Qe7 
     A) 11.Qc2 d5 (11...a5) 12.b5 a6 13.cd5 cd5 14.Rfc1 Qe6 15.Qc7=;
     B) 11.Rc1 d5 (11...h6) 12.Qb3 e4 13.de4 de4 14.Ng5 e3 15.fe3=;
     C) 11.a5 
        C1) 11...Rb8 12.Qb3 (12.Qc2; 12.Ne4; 12.h3; 12.Ra4) 
         12...d5 13.cd5 Nd5 14.b5 Qb4 15.Qb4=;
        C2) 11...h6 12.Qb3 (12.Qc2; 12.Ne4) 12...Qe6 13.Qc2 Rb8 
         14.Rfc1 g5 15.h3=;
        C3) 11...Rd8 12.b5 (12.Qb3; 12.e4; 12.Qa4; 12.a6; 12.Qc2) 
         12...a6 13.b6 Ne8 14.Ne4 f5 15.Nc3=;
        C4) 11...d5 12.Qb3 e4 13.de4 de4 14.Ng5 e3 15.fe3=;
     D) 11.e3 d5 12.Rb1 Qd6 13.b5 a6 14.bc6 bc6 15.d4=;
     E) 11.Re1 d5 12.cd5 (12.b5 e4 13.bc6 bc6 14.de4 de4 15.Ba3+= 
     ) 12...Nd5 13.b5 e4 14.Ba3 c5 15.Ne4=;
     F) 11.Rb1 
        F1) 11...h6 12.h3 (12.a5 Qe6 13.Qc2 g5 14.h3 g4 15.hg4=/
         9; 12.Qc2 Qe6 13.a5 d5 14.Rfc1 g5 15.cd5=; 12.e4 
        ; 12.e3) 12...Qe6 13.a5 Rb8 14.e4 c5 15.b5+=;
        F2) 11...Rd8 12.b5 (12.Qc2 d5 13.cd5 Nd5 14.b5 cb5 15.ab5= 
        ; 12.e4 a5 13.b5 cb5 14.cb5 Nc5 15.Qc2=; 
         12.Qb3; 12.e3; 12.Re1) 12...a6 13.bc6 bc6 14.Bc3 Rb8 15.Rb8+= 
        ;
        F3) 11...Rb8 12.e4 (12.e3; 12.Qc2; 12.Qb3; 12.Rc1) 12...c5 
         13.b5 a6 14.Bc3 ab5 15.Rb5=;
        F4) 11...d5 12.Qb3 (12.b5 a6 13.bc6 bc6 14.Bc3 Qe6 15.Qc2= 
        ) 12...e4 13.de4 de4 14.Ng5 e3 15.fe3=; 
   10...d5 11.cd5 (11.Qc2; 11.Qb3; 11.Rc1; 11.Rb1; 11.Ra3) 11...Nd5 
   (11...cd5 12.Rc1 Qe7 13.Qb3 Bf8 14.b5 Bh6 15.e3+=) 12.Qb3 
   g5 13.b5 g4 14.Nh4 N7f6 15.bc6+=; 
   10...Qc7 
     A) 11.Rc1 
        A1) 11...h6 12.Qc2 (12.a5; 12.Nb3; 12.Bc3) 12...g5 13.h3 a5 
         14.b5 g4 15.hg4=;
        A2) 11...b6 12.d4 (12.Bc3; 12.b5) 12...h6 13.b5 e4 14.Ne1 
         Bb7 15.e3=;
        A3) 11...c5 12.b5 a6 13.Ra1 ab5 14.ab5 Ra1 15.Ba1=;
     B) 11.h3;
     C) 11.Re1;
     D) 11.Qc2;
     E) 11.Nb3;
     F) 11.Rb1;
     G) 11.a5 
        G1) 11...d5 12.Qb3 (12.Qc2 Bf8 13.Ra4 Rb8 14.d4 e4 15.Ne5= 
        ; 12.Ra4 Qd6 13.Qc2 h6 14.c5 Qe6 15.e4=; 
         12.cd5) 12...Qd6 13.cd5 cd5 14.b5 h6 15.Rfc1+=;
        G2) 11...Rb8 12.Qc2 (12.Qa4) 12...d5 13.cd5 Nd5 14.b5 cb5 
         15.Qb3+=; 
   10...Qb6 
     A) 11.b5 
        A1) 11...a6 12.a5 Qd8 13.b6 Nc5 14.Nb3 e4 15.de4=;
        A2) 11...a5 12.h3 (12.Nb3; 12.Qc2; 12.Rc1; 12.bc6; 12.Bc3 
        ; 12.Rb1; 12.Ba3) 12...cb5 13.cb5 d5 14.Rc1 Qd6 15.Qc2=;
        A3) 11...Qd8 12.Qc2 (12.a5 a6 13.b6 Qe7 14.Ba3 Nc5 15.Ng5= 
        ; 12.h3; 12.Nb3; 12.Bc3) 12...Qc7 13.e4 a5 14.d4 
         ed4 15.Nd4=;
        A4) 11...d5 12.a5 Qc7 13.cd5 cd5 14.Qa4 Qd6 15.Rfc1+=;
        A5) 11...h6 12.a5 (12.Nb3; 12.Qc2; 12.e4) 12...Qc7 13.Nb3 
         d5 14.Rc1 Qd6 15.bc6=;
        A6) 11...Qc7 12.a5 Nf8 13.Qb3 Ne6 14.Rfe1 h6 15.Qb4=;
     B) 11.Bc3 d5 (11...Qc7 12.e3 d5 13.Qc2 dc4 14.dc4 h6 15.a5+= 
     ) 12.e3 Qc7 13.Qc2 h6 14.a5 Rb8 15.Rfb1=; 
   10...h6 
     A) 11.Qc2 
        A1) 11...Qc7 12.Rac1 (12.a5 d5 13.d4 e4 14.Ne5 Qd8 15.Rad1= 
        ; 12.h3 a5 13.b5 cb5 14.ab5 d5 15.Kh2=; 
         12.Rfc1 a5 13.b5 Nc5 14.Ba3 e4 15.de4=; 12.Ra3 a5 
         13.b5 Nc5 14.Nb3 Nb3 15.Rb3=) 12...g5 13.h3 g4 
         14.hg4 Ng4 15.d4=;
        A2) 11...Qe7 12.e4 (12.a5; 12.Rab1; 12.Rac1; 12.e3) 
         12...a5 13.b5 Nc5 14.Rfe1 Bg4 15.h3=;
        A3) 11...d5 12.e3 (12.b5; 12.cd5; 12.Rab1) 12...e4 13.Nd4 
         Qe7 14.de4 de4 15.b5=;
        A4) 11...Rb8;
        A5) 11...a5 12.b5 Qc7 13.Rac1 Nc5 14.Ba3 e4 15.de4=;
     B) 11.Rc1 
        B1) 11...Qc7 12.Qc2 (12.Nb3 c5 13.Qe1 cb4 14.Qb4 Nc5 15.Nc5= 
        ; 12.Rb1 d5 13.cd5 cd5 14.Qb3 Qd6 15.Rfc1=
         ; 12.a5 c5 13.Qb3 Rb8 14.Rb1 b6 15.ab6=) 12...g5 
         13.h3 g4 14.hg4 Ng4 15.d4=;
        B2) 11...Qe7 12.Qc2 (12.Re1 d5 13.Qb3 e4 14.de4 de4 15.Nd4+= 
        ) 12...c5 13.b5 a6 14.Ra1 Qe6 15.Rfb1=;
        B3) 11...c5 12.b5 (12.Qb3 Qc7 13.Rfd1 cb4 14.Qb4 Nc5 15.a5= 
        ) 12...a6 13.Ra1 ab5 14.ab5 Ra1 15.Ba1=;
     C) 11.h3 
        C1) 11...Qe7 12.Rb1 (12.e3 d5 13.b5 e4 14.Ne1 a6 15.cd5= 
        ; 12.a5 d5 13.b5 e4 14.de4 de4 15.Nd4=; 
         12.Rc1 d5 13.Qb3 e4 14.Nd4 e3 15.N2f3+=) 12...Qe6 
         13.Qc2 d5 14.Rfc1 a6 15.cd5=;
        C2) 11...Qc7 12.Nb3 (12.Qc2 a5 13.b5 cb5 14.ab5 Nb6 15.Ra3= 
        ; 12.Re1 d5 13.cd5 cd5 14.Qb3 Qd6 15.Rac1= 
        ; 12.a5 d5 13.Qc2 e4 14.de4 de4 15.Nd4=; 12.Rb1 d5 
         13.cd5 cd5 14.Qb3 Qd6 15.Rfc1=) 12...d5 13.Qc2 e4 
         14.de4 de4 15.Nfd4=;
     D) 11.b5 
        D1) 11...Qe7 12.Nb3 (12.Bc3 a6 13.Qc2 Nc5 14.bc6 bc6 15.Rfb1= 
        ; 12.Qc2 a6 13.Rfe1 d5 14.cd5 cd5 15.Rec1= 
        ; 12.Re1 d5 13.Ba3 Qe6 14.e4 de4 15.de4=; 12.a5 a6 
         13.b6 Nc5 14.Rb1 Bg4 15.h3=) 12...d5 13.cd5 cd5 
         14.Qc2 Qe6 15.a5=;
        D2) 11...a6 12.Qc2 (12.h3 Qe7 13.Qc2 Nc5 14.d4 Bf5 15.Qd1= 
        ; 12.Bc3 Qc7 13.bc6 bc6 14.Rb1 Bb7 15.Qc2= 
        ; 12.Qb3 Nc5 13.Qb4 a5 14.Qc3 cb5 15.ab5=; 12.Re1 
         Qc7 13.e4 ab5 14.ab5 Ra1 15.Ba1=) 12...Qc7 13.Rfb1 
         Rb8 14.Bc3 d5 15.b6=;
     E) 11.e3 d5 (11...Qe7) 12.Qc2 (12.Rc1 Qe7 13.cd5 Nd5 14.b5 e4 
      15.Nd4=; 12.Qe2 Qe7 13.cd5 cd5 14.b5 a6 15.Rfc1= 
     ) 12...Qe7 13.cd5 cd5 14.Bc3 Qe6 15.a5=;
     F) 11.a5 
        F1) 11...Qe7 12.Qc2 (12.Qb3 Qe6 13.Qc3 d5 14.e3 g5 15.h3= 
        ; 12.Ne4) 12...d5 13.b5 dc4 14.Qc4 cb5 15.Qb5+=;
        F2) 11...Rb8 12.Qa4 (12.b5 a6 13.b6 Qe7 14.Ba3 Nc5 15.Rb1= 
        ; 12.e4 b5 13.ab6 Qb6 14.Bc3 d5 15.ed5= 
        ; 12.Re1; 12.Ne4; 12.Qc2; 12.Qb3; 12.Ra4) 12...d5 13.cd5 
         Nd5 14.Rfb1 a6 15.e4=;
        F3) 11...Nb8 12.Bc3 (12.e4; 12.b5; 12.Qb3; 12.Qa4; 12.Re1)
          12...Qc7 13.e4 Na6 14.h3 Bd7 15.Qe2=;
        F4) 11...d5 12.cd5 cd5 13.Qb3 b5 14.Rfc1 a6 15.Rc2=;
     G) 11.Re1 Qe7 (11...d5; 11...Qc7) 12.a5 (12.Rc1 d5 13.b5 e4 
      14.bc6 bc6 15.de4+=; 12.e4 c5 13.Qb3 cb4 14.Qb4 Nc5 
      15.Ra3=) 12...d5 13.Qb3 e4 14.de4 de4 15.Nd4=;
     H) 11.Qb3 a5 12.b5 Nc5 13.Qc2 Qe7 14.Rfe1 Bf5 15.e4=;
     I) 11.Ra3 d5 (11...Qe7) 12.b5 (12.a5 Qe7 13.Qa4 c5 14.bc5 Nc5 
      15.Qb4=; 12.Rb3 a5 13.b5 e4 14.de4 de4 15.Nd4=
      ) 12...a6 13.bc6 bc6 14.Qc2 Rb8 15.Rb1=;
     J) 11.Qb1 Qe7 (11...d5; 11...a5; 11...Rb8) 12.Rd1 (12.Qc2 d5 
      13.cd5 cd5 14.b5 a6 15.Rfc1=; 12.b5 a6 13.Qc2 Nc5 
      14.Rfe1 Bd7 15.d4=; 12.a5 d5 13.b5 cb5 14.Ba3 Qd8 
      15.Qb5=) 12...g5 13.h3 d5 14.b5 Qe6 15.Rc1=;
     K) 11.Qc1 d5 (11...Qe7) 12.cd5 (12.Rd1 e4 13.de4 de4 14.Nd4 Qe7 
      15.Qc3=) 12...cd5 13.Qc3 Bf8 14.a5 b5 15.d4=;
     L) 11.Ra2 Qe7 (11...d5) 12.a5 (12.Qc2 d5 13.b5 e4 14.bc6 bc6 
      15.de4=; 12.Nb3 d5 13.cd5 Nd5 14.b5 a6 15.bc6=/
      9) 12...d5 13.b5 cb5 14.cb5 Qe6 15.Qc2=;
     M) 11.Rb1 
        M1) 11...Qe7 12.Qc2 (12.a5; 12.h3; 12.e4; 12.e3) 12...Qe6 
         13.a5 d5 14.b5 cb5 15.cb5=;
        M2) 11...Qc7 12.e3 (12.Re1 d5 13.b5 e4 14.bc6 bc6 15.Nd4= 
        ; 12.h3 d5 13.cd5 cd5 14.Qb3 Qd6 15.Rfc1= 
        ; 12.Bc3 d5 13.cd5 Nd5 14.Ba1 Rd8 15.Qc2=; 12.a5 Rb8 
         13.Qc2 c5 14.Bc3 cb4 15.Rb4=) 12...c5 13.b5 a6 
         14.Qc2 g5 15.h3=) 
11.Qb3 
   (11.a5 Qe7 12.Re1 (12.Qc2 N8d7 13.a6 ba6 14.Rfb1 Rb8 15.Bc3=/
   9; 12.a6 Rb8 13.c5 b5 14.Nb3 Qc7 15.cd6=) 12...N8d7 
   13.e4 h6 14.Bc3 Rb8 15.Qe2+=) 
11...Qc7 
   (11...a5 12.b5 (12.Rfb1 Ne6 13.b5 Qe7 14.Ba3 c5 15.Bc1=; 
   12.Bc3 Ne6 13.ba5 Nc5 14.Qc2 e4 15.de4=; 12.ba5 Ra5 13.Bc3 
   Ra6 14.a5 Ne6 15.Rfb1=; 12.h3 ab4 13.Qb4 b6 14.Rfb1 Ra6 
   15.g4=) 12...Ne6 13.e3 h6 14.Rad1 Qe7 15.Ba3=) 
12.a5 Ne6 
   (12...h6 13.Ne4 Ne4 14.de4 Be6 15.Rfd1=) 
13.Rfc1 
   (13.a6 c5 14.Rfb1 cb4 15.Qb4=) 
13...Bd7 
   (13...Qe7!?= 14.Qc2 g5 15.c5=; 
   13...c5 14.b5 g5 15.h3+=) 
14.c5+/– Nd4 15.Nd4 
   (15.Bd4!? ed4 16.Nd4+=) 
15...ed4= 16.cd6 Qd6 17.Nc4 Qe6 
   (17...Qc7!?+=) 
18.Bd4+/– Qe2 19.Ra2 
   (19.Nd6 Re7 20.Qc3+/– (worse is 20.Nb7 Be6 21.Qd1 Qd1 22.Rd1 Rb7 23.Bc6 Rb4 
   24.Bf6 Bf6 25.Ba8 Ba1 26.Ra1 Rd4+=)) 
19...Qe6 20.Qb2 Nh5 21.Bg7 Ng7 22.Nd2 Rad8 
   (22...f5!?+=) 
23.Ne4+/– Re7 24.Nc5 Qg4 25.Nb7 Rde8 
   (better is 25...Rb8 26.a6 Rbe8+–) 
26.Rca1?? 
   (better is 26.h3 Qg5 27.Nc5 Re1 28.Re1 Re1 29.Kh2+–) 
26...Re2 
   (26...Re1 27.Bf1 Rf1 28.Rf1 Qf3–+) 
27.Qc3?? 
   (better is 27.f3 Rb2 28.fg4 Rb4 29.Nc5 Bg4 30.Rc1=) 
27...Qf5?? 
   (27...Ra2 28.Rc1 Ree2 29.Rf1–+) 
28.Rf1?? 
   (better is 28.Re2 Re2 29.Qd4+–) 
28...Rb8 
   (better is 28...Ra2 29.Nc5 Ree2–+) 
29.Nd6 
   (better is 29.Re2 Rb7 30.Rfe1 Ne6+–) 
29...Qe6 30.Ne4?? 
   (better is 30.Re2 Qe2 31.Ne4+–) 
30...Ne8?? 
   (30...Ra2 31.Qd4 Be8 32.Nf6 Kh8 33.Qc5–+) 
31.Bf3 
   (better is 31.Re2 Qg4 32.Rfe1+–) 
31...Ra2–+ 
   (31...Qa2?! 32.Ra1 Qb2 33.Be2 Qc3 34.Nc3 Rb4 35.Ne4=) 
32.Nc5 
   (32.Bd1 Qe7 33.Bb3–+) 
32...Ra1 
   (better is 32...Qf6 33.Qc4 Bc8–+ (33...Qf3?! 34.Nd7 Rd8 35.Ne5–+)) 
33.Ne6+– 
   (33.Qa1?! Qd6+–; 
   33.Ra1?! Qf6 34.d4 Bf5+–) 
33...Rf1 34.Kf1 fe6 35.Bc6 Rc8 36.b5 Nd6 
   (36...Kf7 37.Qd4 Bc6 38.bc6+–) 
37.Qe5 
   (better is 37.Qe1 Rc7 38.Bd7 Rd7 39.Qe6 Rf7 40.Qd6 g5+–) 
37...Nf7 38.Qe3 
   (better is 38.Qc5 Rc7 39.Qe7 Rc6 40.bc6 Bc6 41.Qa7 g5+–) 
38...Bc6 39.bc6 Rc6 40.Qa7 Rd6 
   (40...Rc8 41.Qe7 Rb8 42.Qe6+–) 
41.a6 Nd8 
   (41...Kg7 42.Qb7 Rd3 43.a7+–) 
42.Qb8 
   (42.Qa8!? Kf7 43.Qf3 Ke7+–) 
42...Ra6 43.Qd8 Kf7 44.Qc7 
   (44.Qc7 Kf6 45.Qh7+–) 
1–0




(4) Majul,Isolina – Chaves,Joara
32nd Chess Olympiad Yerevan, 1996

1.b4 e5 2.Bb2 d6 3.c4 Be6 4.d3 
   (4.e3 
     A) 4...Be7 5.Nf3 (5.d4) 5...Nf6 6.Be2 a5 7.b5 Nbd7 8.0–0 0–0=;
     B) 4...Nf6 5.Nf3 Nbd7 (5...a5 6.b5 Be7 7.Be2 0–0 8.0–0 a4=; 5...Bg4 
      6.d3 Nc6 7.b5 Nb8 8.Be2 a6=; 5...Be7 
      6.Nc3 Bf5 7.Be2 0–0 8.0–0 Re8=) 6.Be2 Nb6 7.Qb3 a5 
      8.ba5 Ra5=) 
4...f5 
   (4...Nf6 
     A) 5.e3 Nc6 (5...Be7; 5...Na6; 5...a5; 5...c6) 6.b5 Ne7 7.Nf3 
      Ng6 8.Be2 a6=;
     B) 5.Nd2 Be7 6.Ngf3 0–0 7.e4 a5 8.b5 Nfd7=;
     C) 5.a3 Be7 (5...a5) 6.Nf3 0–0 7.e3 a5 8.b5 Nbd7=;
     D) 5.Nf3 Be7 (5...a5 6.b5 Be7 7.e3 Nbd7 8.Be2 0–0=) 
      6.e3 a5 7.b5 a4 8.Be2 c6=; 
   4...Be7 5.e3 (5.Nf3 Nf6 6.Nbd2 0–0 7.e4 a5 8.b5 Nfd7=; 
   5.Nd2 Nf6 6.Ngf3 0–0 7.e4 a5 8.b5 Nbd7=; 5.e4 Nf6 6.Nf3 
   0–0 7.Be2 c6 8.Nbd2 Qb6=; 5.g3 Nf6 6.Bg2 c6 7.Nf3 Na6 
   8.a3 0–0=) 5...Nf6 6.Nf3 Nbd7 7.Be2 0–0 8.0–0 a5=) 
5.g3 
   (5.e3 Be7 (5...Nf6 6.Nf3 Be7 7.Be2 0–0 8.0–0 Nfd7=; 
   5...Nh6 6.Nf3 Be7 7.Be2 0–0 8.0–0 Nd7=) 6.Nf3 Bf6 7.Be2 
   Ne7 8.0–0 0–0=; 
   5.Nf3 Nf6 (5...Be7 6.e3 Nf6 7.Be2 0–0 8.0–0 Qe8=; 5...g5 
   6.d4 g4 7.d5 Bd7 8.Nfd2 f4=; 5...Na6 6.a3 Nf6 7.e3 Be7 
   8.Be2 0–0=) 6.e3 Be7 7.Be2 a5 8.b5 0–0=) 
5...Nd7 
   (5...Nf6 6.Nf3+= c6 7.Bg2 Qb6 8.a3 a5=; 
   5...d5 6.Qa4 Qd7 7.b5 dc4 8.dc4 e4+=) 
6.Bg2= Rb8 
   (6...c6 7.Nf3 Be7 8.0–0 Nh6=) 
7.Nf3 
   (7.a3 Be7 8.Nf3 Nh6=) 
7...Be7 
   (7...c6 8.0–0 Qf6=) 
8.Nc3 
   (8.0–0 c6=) 
8...Nh6 
   (8...c6=) 
9.Qc2 0–0 10.0–0 a6 11.Nd5 c6 12.Ne7 Qe7 13.c5 dc5 14.bc5 Bf7 
   (worse is 14...Nc5 15.Ba3 (15.Ne5?! Nd7+=; 15.Be5?! Rbe8+=) 15...b6 16.Ne5+/–; 
   worse is 14...Qc5 15.Qc5 Nc5 16.Be5+=) 
15.Qc3 Rfe8 16.Rfc1 Ng4 17.Nh4 Be6 18.h3 Ngf6 19.e4 
   (19.Nf3 Bd5=) 
19...f4 
   (19...fe4 20.de4 Qf7 21.Qe3=) 
20.d4 
   (20.Nf3 fg3 21.fg3 Bf7=) 
20...fg3 21.fg3 
   (21.Qg3? Nh5 22.Qf3 Qh4–+) 
21...ed4 22.Qd4 Nh5 23.Kh2 Qg5 24.Qd6 Rbd8 25.Nf3 Qg6 26.g4 
   (26.Qc7!?=) 
26...Nhf6–/+ 27.Nh4 Qh6 28.Qg3 Bg4 
   (28...Ng4 29.hg4 g5 30.Kh3–/+) 
29.hg4= g5 Exerts pressure on the isolated pawn 
   (29...Ne4 30.g5 Qh5 (30...Qg5?! 31.Be4 Qg3 32.Kg3 Re4 33.Rd1=; worse is 
   30...Ng5 31.Kg1+=) 31.Qb3 Kh8–+) 
30.Rf1 gh4? 
   (30...Re6 31.Bh3 gh4+= (worse is 31...Qh4 32.Qh4 gh4 33.g5 Re4 34.Bf6 Nf6 
   35.gf6+–)) 
31.Qb3+– Kh8 
   (31...Kg7 32.Rad1 Nc5 33.Rd8 Rd8+–) 
32.Rf5?? 
   (better is 32.Rad1 h3 33.Bh3+– (33.Qh3?! Kg8 34.Rf5 Ng4 35.Kg3 Ndf6 36.Bf6 
   Qh3 37.Bh3 Nf6 38.Rd8 Ne4 39.Kf4 Rd8 40.Ke4 Kg7+–)) 
32...Ne5 33.g5 Nfg4 34.Kh1 Qe6?? 
   (34...Qg7 35.Bh3 Rd2 36.Bg4 Rb2 37.Qb2 Ng4 38.Qg7 Kg7+=) 
35.Qh3 
   (better is 35.Rf8! Kg7 36.Qe6 Re6 37.Rd8+–) 
35...Qf5!–+ 36.ef5 Nf2 37.Kh2 Nh3 38.Kh3 Kg8 
   (38...Rd3!? 39.Kh4 Rd2 40.Bc3–+) 
39.Re1?? 
   (better is 39.Rb1–+) 
Rd3 
   (39...Rd3 40.Kh4 Nf3 41.Bf3 Re1–+) 
0–1




(5) Majul,Isolina – Garcia,ML
COL–ch Columbia, 1990

1.b4 Nf6 2.Bb2 e6 3.a3 a5 4.b5 a4 5.c4 d5 6.e3 Bd7 
   (6...Bd6 7.Nc3+=) 
7.Nf3 c6 8.Nc3 dc4 9.Bc4 cb5 
   (9...Bd6 
     A) 10.Na4? cb5 11.Bf6 gf6–+ (11...Qf6?! 12.Nb6+=);
     B) 10.0–0=) 
10.Nb5+= Nc6 
   (10...Be7 11.Bf6 gf6 12.0–0+=) 
11.0–0 Be7 12.Ne5 
   (12.Bf6 gf6 13.d4 Rg8+=) 
12...0–0 13.f4 
   (13.Nd7 Qd7 14.d3 Na5=) 
13...Na5= 14.Qa4 Nc4 15.Qc4 Bb5 16.Qb5 Qd2 17.Bd4 Nd5 
   (17...Ra3?? 18.Nc4 Qb4 19.Na3+–) 
18.Nc4 
   (18.Rf2 Qa5 19.Qb7 Qa4+=) 
18...Qd3= The pressure on the isolated pawn grows 19.Rad1 
   (19.Rfd1 Qe2=) 
19...Qf5 20.a4 Qc2 
   (20...Rfd8 21.Rf2=) 
21.a5+= Rfc8 
   (21...Nc3 22.Bc3 Qc3 23.Rc1+/–) 
22.Rc1 Qe4 23.Nd2 Qg6 24.Rc8 
   (24.f5 Qg4 25.Rc8 Rc8 26.Qb7 Rd8+–) 
24...Rc8 25.f5! Qh6 
   (25...Qf5 26.Rf5) 
26.Qb7 Rd8 27.Nc4 Bg5 28.fe6 
   (28.Rf3 ef5 29.Rf5 Ne7+/–) 
28...Qe6 29.a6 
   (better is 29.Rf3+/–) 
29...Be3?? 
   (better is 29...Ne3 30.Be3 Be3 31.Ne3 Qe3 32.Kh1 Qf2+=) 
30.Ne3+– Ne3 31.Re1 
   (31.Re1 Qg6 32.Re3+–) 
1–0




(6) Majul,Isolina – De Armas,Asela
Cartagena zt (Women), 1990

1.b4 Nf6 2.Bb2 g6 3.Nf3 Bg7 4.e3 0–0 5.Be2 b6 6.0–0 Bb7 7.c4 c5 8.bc5 bc5 
9.Qc2 
   (9.d4 Qb6 10.Qb3 cd4 11.Bd4 Qb3 12.ab3 Nc6=) 
9...Nc6 10.a3 Rb8 11.d3 d6 12.Nbd2 e5 13.d4 
   (13.Rab1 Qc7=) 
13...Nd7 
   (13...cd4 14.ed4 e4 15.Ne1= (15.Ne4? Ne4 16.d5 Bb2 17.Qb2 Ne7–+)) 
14.d5+= Ne7 15.Ne4 Nc8 16.Rab1 h6 17.Nfd2 f5 18.Ng3 Nf6 19.Bc3 Nb6 20.a4 
   (20.f4 e4=) 
20...Qe7 21.Rb2 Ba6 
   (21...f4 22.ef4 ef4 23.Nge4 Ne4 24.Ne4+=) 
22.Rfb1 
   (22.a5 Nbd7+=) 
22...Rbe8 
   (22...f4 23.ef4 ef4 24.Nge4 Nfd5 25.Bg7 Kg7 26.a5+=) 
23.a5+= Nbd7 24.Nf3 Nh7 25.Nf1 
   (25.Qa4 Rb8+/–) 
25...Ng5 26.N1d2 Rf7 27.Ng5 hg5 
   (27...Qg5 28.Nf3 Qf6 29.Qd3+/–) 
28.e4 g4 29.Qd3 
   (29.Qa4 Ref8+/–) 
29...Qg5 
   (29...Qh4 30.ef5 gf5 31.Qe3+/–) 
30.f3 
   (30.Bf1 Qf4+/–) 
30...g3 
   (30...gf3 31.Nf3 Qf4 32.Nd2=) 
31.hg3 
   (31.h3 Bh6+/–) 
31...Qg3 32.Nf1 Qf4 33.Bd2 Qh4 Black prepares the advance f4 34.Qe3 
f4 35.Qf2 Qh8 
   (35...Qh5 36.Bc3+=) 
36.g4 
   (36.Be1 Bf6 37.g3 Rh7=) 
36...Bf6= 37.Qg2 Bh4 38.Bd3 Rh7 39.Bc3 Qf6 40.Be1 
   (40.Nd2 Bg3 41.Nf1 Bh4=) 
40...Bg5 
   (40...Be1!? 41.Re1 Qd8+=) 
41.Kf2= Qd8 42.Ke2 Kf7 43.Kd1 Reh8 44.Qc2 Rh3 45.Be2 Qc7 46.Qa4 Rc8 
47.Nd2 Bh4 
   (47...Ke7 48.Rb3=) 
48.Bh4 
   (48.Bf1 Rh2+=) 
48...Rh4= 49.Kc2 
   (49.Bd3 Rh1 50.Kc2 Rh2=) 
49...Rh2 50.Kd3 Nf6 
   (50...Ke7 51.Nf1 Rh1 52.Nd2=) 
51.Nb3 
   (51.Nf1 Rh3 52.g5 Nh7=) 
51...Nh7 
   (51...Rb8 52.Qc6 Qc6 53.dc6=) 
52.Qa1 
   (52.Nc1 Rh8+=) 
52...Ng5 53.Rh1 Rch8 54.Rh2 Rh2 55.Nd2 Kf6 56.Qa4 Rh8 
   (56...Ke7 57.Nf1 Rh1 58.Nd2+=) 
57.Nb1 
   (57.Ra2 Nh3=) 
57...Rb8 
   (57...Ke7!?+=) 
58.Rb8+= Qb8 59.Nc3 Nf7 
   (59...Ke7 60.Qc6 Bb7 61.Qb5=) 
60.Qd7 
   (60.Qc6 Qc8+=) 
60...Qb4= 61.Nb5 Bb5 62.Qb5 
   (62.cb5? Qe1 63.g5 Kg7 64.Qa7 Qc1–+) 
62...Qa3 
   (62...Qe1 63.Qa6 Qc1 64.Qa7 Qe3 65.Kc2 Qe2 66.Kb3 Qf3 67.Ka4 Qd1 
   68.Kb5 f3 69.g5 Ng5–+) 
63.Kc2 Qa2 64.Kd1 Qa1 65.Kc2 
   (65.Kd2 Kg7=) 
65...Qe1+= 66.Bd1 ½–½




(7) Majul,Isolina – Puuska,Heini
32nd Chess Olympiad, Yerevan, 1996

1.Nf3 d5 2.b4 c6 3.Bb2 Qb6 4.a3 c5 
   (4...f6 5.e3 (5.c4 e5 6.d4 e4 7.Nfd2 a5 8.c5 Qc7 9.ba5=) 
   5...e5 6.d4 e4 7.Nfd2 a5 8.b5 Bd7 9.c4+=; 
   4...Nd7 
     A) 5.Bc3 Ngf6 (5...Qc7 6.d4 Ngf6 7.e3 Ne4 8.Bb2 a5 9.c4=
      ) 6.e3 Qc7 7.d4 Ne4 8.Bb2 a5 9.c4=;
     B) 5.e3 e6 (5...Ngf6 6.c4 a5 7.c5 Qc7 8.d4 ab4 9.ab4=)
       6.c4 a5 7.Bd4 Qc7 8.ba5 Ngf6 9.cd5=) 
5.e3 
   (5.Nc3 
     A) 5...Qd6+/– 6.e4 (6.bc5 Qc5 7.e4 e6 8.Bb5 Nc6 9.ed5+/–) 
      6...e6 7.ed5 ed5 8.Nb5 Qc6 9.Be5+/– 1.31;
     B) 5...Qd8 6.bc5 Nf6 7.e3 Nc6 8.Bb5 a6 9.Ba4+/–) 
5...Bg4 
   (5...Nf6 6.c4 (6.Be5= Nc6 7.bc5 Qc5 8.d4 Qa5 9.Qd2=; 
   6.Nc3 cb4 7.ab4 e6 8.Na4 Qc7 9.Be5=) 6...cb4 7.Qa4 Bd7 
   8.Qb4 Qb4 9.ab4=; 
   5...e6 6.bc5 Qb2 7.Nc3 Bc5 8.Na4 Qf6 9.Nc5=) 
6.c4 
   (6.Nc3 Qd6+= 7.Nb5 Qd8 8.h3 Bh5 9.bc5+/– 1.03) 
6...e6 
   (6...Nf6 7.Qa4 (7.cd5 Nd5 8.Bc4 e6 9.Qa4+=) 7...Bd7 8.b5= 
   (8.Qb3 e6 9.d4+=) 8...a6 9.Be5+=) 
7.Qa4 
   (7.cd5 Nd7 (7...ed5 8.Nc3 Nf6+/– 9.Na4+/–) 8.de6 fe6 9.h3+/–) 
7...Qc6 
   (7...Nc6 8.Ne5 Bf5 9.d4+= (9.cd5 ed5 10.Bb5+=)) 
8.b5 
   (8.Qc6 bc6 9.bc5 Nd7 10.cd5 ed5+/–) 
8...Qb6+= 9.Ne5 
   (9.Be2 Nh6+=) 
9...Bf5= 10.d4 Nf6 11.Nd2 Nbd7 12.Ndf3 
   (12.g4 Ng4 13.Ng4 Bg4 14.cd5 ed5 15.dc5 Qe6=) 
12...Be7 
   (12...cd4 13.Bd4 Nc5 14.Qd1=) 
13.Be2 0–0 14.0–0 Ne5 15.Ne5 a6 16.cd5 ab5 
   (worse is 16...Nd5 17.Nd7 ab5 18.Qa8 Ra8 19.Nb6 Nb6 20.Bb5+/–) 
17.Qb5 Qb5 18.Bb5 Ra5 
   (18...Nd5!? 19.dc5 Bc5=) 
19.a4+= Nd5 
   (19...ed5!? 20.dc5 Bc5+=) 
20.dc5+/– f6 
   (20...Bc5!? 21.Nd7 Rc8+/–) 
21.Nc4+– Ra7 22.Nd6 Bd6 
   (22...Bg6 23.Bd7 Bf7 24.e4+–) 
23.cd6 Rd8 24.Ba3 
   (24.Rfe1!? Nb4 25.e4 Bg6+–) 
24...Nc3+/– 25.Bc5 Nb5 26.ab5 Ra1 27.Ra1 Bd3 28.b6 Kf7 29.f3 Bb5 30.Ra5 Bc6 
31.e4 e5 32.Kf2 Ke6 33.Ke3 g5 34.g3 Rg8 35.Bb4 
   (35.h3 Rd8+–) 
35...h6 
   (better is 35...g4 36.f4 Re8+/–) 
36.f4?? 
   (better is 36.h3+–) 
36...gf4+= 37.gf4 Rg4 38.d7? 
   (better is 38.Rc5=) 
38...Kd7–+ 39.Ra2 Rf4 40.Rd2 Ke8 41.Rb2 
   (41.Rd4 Rh4 (41...ed4?! 42.Kf4 Kf7 43.e5+=) 42.Rc4 Kd7–+ (42...Rh2? 
   43.Rc6 Rh3 44.Ke2+–)) 
41...Re4 42.Kd3 f5 43.Bd2 
   (43.Bc3 Kd7–+) 
43...Rh4 
   (43...Rd4 44.Kc3 f4 45.Ra2–+) 
44.Bc3 e4 45.Kd4 f4 46.Ke5 f3 47.Be1 
   (47.Kd4 Rg4–+) 
47...Rh5 
   (47...Rh3 48.Rc2 e3 49.Rc6 bc6 50.b7 Rh5 51.Ke4–+) 
48.Kf4 Rd5 49.Bf2 Kf7 50.Rc2 Ke6 
   (50...Rd6 51.Bc5 Rd8 52.Be3–+) 
51.Be3 
   (51.Ke4 Rc5 52.Kd3 Be4 53.Ke4 Rc2 54.Kf3 Kf5–+) 
51...h5 
   (51...Rd7 52.Kg3 Rg7 53.Kf4–+) 
52.h4 
   (52.Rc5 h4–+) 
52...Rd8 53.Rc5 Rf8 54.Kg3 f2! 55.Bf2 
   (55.Bf2 Rf3) 
55...Rf3 56.Kg2 Rb3 
   (56...Bd5 57.Be1–+) 
57.Bd4 
   (57.Kf1 e3 58.Be1 Rb1–+) 
57...e3–+ 58.Kg3 Bd5 59.Ra5 Rd3 60.Bg7? 
   (60.Bh8 Rd2–+) 
60...Rd2 
   (60...Rd1!? 61.Bc3 Rg1 62.Kf4–+) 
61.Bc3 Rg2 
   (61...Rf2 62.Ra8 Rf3 63.Kh2–+) 
62.Kf4 Rc2 
   (62...e2 63.Be1 Rg1 64.Ra1–+) 
63.Ra3 e2 64.Be1 Bc4 65.Ke3 Rb2 66.Ra5 Bb5 67.Kf2 Kd5 68.Ra1 ½–½




(8) Majul Martinez,Isolina (2080) – Chang,Suzana
Pan American op, 1998

1.Nf3 d5 2.b4 Bf5 3.Bb2 Nf6 4.g3 e6 5.a3 a5 
   (5...Nbd7 6.Bg2 h6 7.0–0 Bd6 8.d3 0–0 9.Nbd2 Qe7 10.Nd4 Bh7 11.Nb5 e5 
   12.Nd6 Qd6 13.e4 c6 14.Qe2 Rfe8 15.c4 de4 16.de4 c5 17.b5 Nf8 18.f4 
   Rad8 19.Rad1 Qd3 20.Qd3 Boysan,F–Michel Yunis,C (2335)/Internet 
   Section 2004/0–1 (50)) 
6.b5 
   (6.c3 ab4 7.cb4 c5 8.b5 b6 9.a4 Nbd7 10.Bg2 Bd6 11.d3 0–0 12.Nbd2 e5 
   13.Nh4 Be6 14.0–0 Rc8 15.e4 d4 16.Qc2 c4 17.dc4 Nc5 18.Rac1 Qd7 19.Ba3 
   Bh3 20.Bc5 Bc5 linakip–eska/kurnik 2012/1–0 (34)) 
6...Be7N 
   (6...c5 7.a4 h6 8.Bg2 Nbd7 9.c4 d4 10.d3 Qc7 11.Nbd2 e5 12.0–0 0–0–0 
   13.Nb3 b6 14.Nh4 Be6 15.e3 g5 16.Nf3 Bd6 17.ed4 ed4 18.Nfd4 cd4 19.Nd4 
   Bg4 20.Qd2 Rde8 21.h3 Wall,B–Russell,B/San Antonio, TX 1992/1–0 (38)
   ) 
7.Bg2 0–0 8.0–0 c6 9.bc6 bc6 10.d3 Qb6 11.Qc1 Nbd7 12.Nbd2 a4 13.c4 Rfc8 
14.Re1 Bc5 15.d4 Bf8 16.Nh4 Rab8 17.Bc3 
   (worse is 17.Nf5 Qb2 18.Ne3 Qd4–+) 
17...c5 18.Nf5 ef5 19.Rb1 Qa7 20.Rb8 
   (20.cd5?? cd4 21.Rb8 Qb8–+ (21...Rb8?! 22.Ba1=; worse is 21...Nb8 22.Qc2 
   dc3 23.Nb1–+)) 
20...Qb8 21.Qc2 
   (21.cd5?? cd4 22.Bd4 Rc1 23.Rc1 Ba3–+) 
21...Ne4 22.Ne4 
   (22.cd5 cd4 23.Ne4 fe4–+) 
22...fe4 23.Bh3 
   (better is 23.dc5 Rc5 24.cd5=) 
23...cd4–/+ 24.Bd7 Rc4 25.Qb2 Qc7 26.Bd4 Qd7 27.e3 Qc6 28.Rb1 h6 29.Qb8 Rc1 
30.Rc1 Qc1 31.Kg2 Qa3 32.Qa8 Qd6 33.Qa4 Kh7 34.Qe8 Kg8 35.h4 Qe7 36.Qa8 
Qd6 37.Qe8 ½–½




(9) Majul Martinez,Isolina (2075) – Zagorskaya,Tatiana (2170)
Yerevan ol (Women), 1996

1.Nf3 Nf6 2.b4 d6 3.c4 a5N 
   (3...a6 4.Nc3 Nc6 5.a3 e5 6.e4 Bg4 7.Be2 Be7 8.0–0 0–0 9.h3 Be6 
   10.Re1 Nd4 11.Nd4 ed4 12.Nd5 Ne4 13.d3 Nc3 14.Nc3 dc3 15.Qc2 Bf6 
   16.Be3 c6 17.Rac1 a5 18.b5 dick99–sagonek/kurnik 2011/1–0 (51); 
   3...Bf5 4.Bb2 c6 5.d3 Nbd7 6.g3 Qb6 7.a3 Ng4 8.e3 Ne3 9.fe3 Qe3 10.Qe2 
   Qb6 11.Nh4 Be6 12.Qf2 Qc7 13.Bg2 a5 14.Nd2 ab4 15.a4 Nc5 16.Qe3 Ra4 
   17.Ra4 Na4 18.Ba1 racvac001 (1695)–carabanchel (1865)/kurnik 2012/
   1–0 (57); 
   3...e5 4.Nc3 g6 5.g3 Bg7 6.Bg2 0–0 7.0–0 Nh5 8.Rb1 f5 9.Qb3 Kh8 10.c5 
   e4 11.Ne1 Nf6 12.cd6 cd6 13.d3 d5 14.Bg5 Nc6 15.de4 de4 16.Nc2 h6 
   17.Be3 Qe8 18.Bc5 Welling,G–Harestad,H/Velden 1995/1–0 (49)) 
4.b5 Nbd7 5.d4 g6 6.Bb2 Bg7 7.Qc2 0–0 8.e3 Re8 9.Be2 e5 10.de5 de5 11.e4 
Nc5 12.Nbd2 Nh5 13.Nb3 Nb3 14.ab3 Nf4 15.0–0 b6 16.Rfd1 Qe7 17.Bc3 Bb7 
18.Bf1 Qc5 19.g3 Ne6 20.Bg2 Nd4 21.Qb2 Rad8 22.Ne1 Qe7 23.b4 ab4 24.Bb4 
Qe6 25.Rdc1 Bh6 26.Rc3 c5 27.bc6 Nc6 28.Ba3 Nd4 29.Nd3 White intends c5
 29...Rc8 Exerts pressure on the isolated pawn 30.c5 Qg4 
   (better is 30...Ba6!?–/+) 
31.Re1= b5 32.Nb4 Qe6 33.Nd5 Bf8 Attacks the isolani on c5 34.Rec1 
Bc6 35.Bb4 h5 36.h4 Kg7 37.Kh2 Red8 38.Re3 Kh8 39.Ra3 f5 40.Nb6 Rc7 
41.Nd5 Rf7 42.Ba5 Rdd7 43.Nb6 Ra7 44.ef5 Qf5 45.Bc6 Nc6 46.Be1 Ra3 47.Qa3 
g5 
   (better is 47...Kh7!? 48.Qa2 Nd4–+) 
48.hg5+= Nd4 49.g6 Qg6 50.Qb2?? 
   (50.Qa8 h4! 51.Rc3–+ (51.gh4?? Nf3 52.Qf3 Rf3–+)) 
50...h4 51.f4 
   (51.Kg1 hg3 52.f4–+ (worse is 52.fg3 Nf3 53.Kf1 Qd3 54.Kg2 Ne1 55.Re1 Qf3 
   56.Kg1 Bc5 57.Qd4 Rh7 58.Qc5 Rh1)) 
51...hg3 52.Bg3 
   (52.Kg1 Qd3 53.Nd5–+) 
52...Rh7 53.Kg2 
   (53.Kg1 Qg3 54.Qg2 Nf3 55.Kf1 Nd2 56.Ke2 Qg2 57.Kd3 Rh3 58.Kc2 Nc4 
   59.Kd1 Qd2) 
Qe4 
   (53...Qe4 54.Kf2 Qf3 55.Ke1 Qe3 56.Kf1 Rh1 57.Kg2 Qf3) 
0–1




(10) Majul Martinez,Isolina (2085) – Castano,Duvan Martin
Cartagena op, 2000

1.Nf3 Nf6 2.b4 e6 3.a3 a5 4.b5 b6 5.Bb2 Bb7 
   (5...c5 6.e3 d5 7.c4 Bb7 8.cd5 ed5 9.Be2 Be7 10.0–0 Nbd7 11.d3 0–0 
   12.a4 Qc7 13.Nc3 Rac8 14.Rc1 Rfd8 15.Qb3 Ne5 16.Ne5 Qe5 17.Ne4 Qe6 
   18.Nf6 Bf6 19.Bf3 Rc7 20.Bf6 Ferretti,F (2265)–De Barberis,M (2095)/
   80th Ann. FSI, FICS INT 2001/0–1 (64)) 
6.e3 d5 
   (6...c5 7.bc6 dc6 8.Be2 Be7 9.0–0 Nbd7 10.d4 0–0 11.Nbd2 Rc8 12.c4 c5 
   13.a4 h6 14.Re1 Qc7 15.Qb3 Rfd8 16.h3 Ne4 17.Ne4 Be4 18.Rac1 Rb8 
   19.Red1 Nf6 20.Ne5 Bd6 21.Bf1 d4nf6 (1915)–behxheti2011 (1795)/
   kurnik 2011/½–½ (58)) 
7.c4N 
   (7.Nc3 Nbd7 8.Be2 Bd6 9.0–0 0–0 10.Nd4 e5 11.Nf5 Ne8 12.f4 f6 13.Bg4 
   g6 14.Nd6 Nd6 15.Be6 Kg7 16.fe5 fe5 17.Nd5 Bd5 18.Bd5 Rb8 19.Rf8 Qf8 
   20.Qe2 Qe7 21.Rf1 Nf6 lucya (2120)–cagme_US (1915)/GameColony.com 
   2002/1–0 (32)) 
7...Nbd7 8.Be2 dc4 9.Bc4 Bd6 10.Ba2 
   (10.d3 c5=) 
10...0–0 11.0–0 Ng4 12.g3 Nge5 13.Ne5 Ne5 14.f4 Nd3 15.Bd4 Be7 
   (15...c5 16.bc6 Bc6 17.Qg4=) 
16.Nc3 
   (16.Qc2 Nc5=) 
16...Bf6 17.Ne2 
   (17.Bf6 Qf6 18.Qe2 Rfd8=) 
17...e5 
   (17...c5 18.bc6 Bc6 19.Bf6 Qf6 20.Qb3+=) 
18.fe5= Ne5 19.Be5 Be5 20.d4 Bd6 21.Nc3 
   (21.Qd3 Qd7=) 
21...Qg5+= 22.Qe1 Rae8 23.e4 Qg4 24.Qf2 Kh8 25.Bb1 f5 26.ef5 Rf6 27.Bd3 
Bg3?? 
   (better is 27...Re7=) 
28.hg3+– Rh6 29.d5 Qh5 30.Qg2 Re3 31.Rae1?? 
   (better is 31.Rad1+–) 
31...Rd3+= Exerts pressure on the isolated pawn 32.g4 Qf7 Increasing 
the pressure on the isolated pawn on d5 33.Rf3 
   (33.Re5 Qf8 34.Rfe1 Qc5 35.Kf1 Rf6 36.Re8 Rf8+–) 
33...Rf3= 
   (33...Bd5 34.Rd3 Rd6 35.Nd5+–) 
34.Qf3 Rd6 35.Re5 h6 36.Qe4 Qf6? 
   (better is 36...Rd8+/–) 
37.Ne2?? 
   (37.Re8 Kh7 38.Re6 Bd5 
     A) 39.Nd5?! Qa1 40.Kf2 Qa2 41.Ke3 Qd5 (worse is 41...Rd5 42.f6 Rf5 
      43.Qf5 g6 44.Re7 Kh8 45.Rh7 Kh7 46.Qd7 Qf7 47.Qf7 Kh8 48.Qg7 mate
      ) 42.Qd5 Rd5=;
     B) 39.Rd6 cd6 40.Nd5 (worse is 40.Qd5 Qc3 41.Qd6 Qe1 42.Kg2 Qe2 43.Kg3 
      Qb5+=) 40...Qa1 41.Kf2 Qb2 42.Kg3 Qa3 43.Kh4+–) 
37...Rd8 
   (37...Kg8 38.Nf4 Rd8 39.Re8 Re8 40.Qe8 Kh7 41.Qg6 Qg6 42.fg6 (worse is 
   42.Ng6 Bd5 43.Ne5 h5–/+) 42...Kg8 43.Kf2+/–) 
38.Nf4+= Qg5 39.Re8 Re8 40.Qe8 Kh7 41.Qg6 Qg6 42.fg6 
   (worse is 42.Ng6 Bd5 43.Ne5 h5–/+) 
42...Kg8 43.Kf2 Bc8 44.Kf3 
   (44.Kg3!? Kf8 45.a4+=) 
44...Kf8= 45.Nh5 a4 46.Kf4 
   (46.Nf4!?=) 
46...Bd7+= 47.Ke5 
   (47.g5!? hg5 48.Kg5 Bb5 49.Kf5+=) 
47...Bg4 48.Nf4 Ke7 49.Ng2 h5 50.Ne3 Bd7 51.Nc4 White prepares d6 
   (51.Ng2 Bb5 52.Kf5 Bd3 53.Kg5 Be4–+) 
51...Bb5 52.d6 Kd7 53.Ne3 cd6 54.Ke4 
   (54.Kf4 Bd3 55.Nd5 b5–+) 
54...Ke6 55.Kf4 d5 
   (55...Kf6 56.Nd5 Kg6 57.Nb6–+) 
56.Kg5 Bd3 
   (56...Be2 57.Nf5 Bg4 58.Ne3–+) 
57.Ng2 Ke5 58.Nf4 Bc4 
   (better is 58...Be4!? 59.Ne2–+) 
59.Nh5 d4 60.Ng7 d3 61.Nf5 d2 
   (better is 61...b5 62.Ne3 d2 63.g7–+) 
62.Ne3 Ke4 63.Nd1 Kd3 
   (63...b5 64.Nc3 Kd4–+) 
64.Kf4 Kc2 65.Ne3 Kc1 66.Ke4 d1Q 67.Nd1 Kd1 68.Kd4 Bb3 69.Kc3 Kc1 70.g7 
Kb1 
   (better is 70...b5 71.Kb4 Bc4 72.Kc3–+) 
71.Kb4 Ka2 72.g8Q Bg8 73.Ka4 Bc4 74.Kb4 Ba6 75.Ka4 Kb2 76.Kb4 Kc2 77.a4 
   (77.Ka4 Kd3–+) 
77...Kb2 78.a5 b5 79.Kc5 Kc3 80.Kb6 b4 81.Ka6 b3 82.Kb7 b2 83.a6 b1Q 
84.Ka8 Qe4 85.Kb8 Qe8 86.Kb7 Qd7 
   (86...Qd7 87.Kb8 Kb4 88.a7 Ka5 89.a8N Kb5 90.Nc7 Kc6 91.Ka7 Qc7 
   92.Ka6 Qb6#) 
0–1




(11) Majul Martinez,Isolina (2085) – Garcia,Eduardo
Cartagena op, 2000

1.Nf3 Nf6 2.d3 d6 3.b4 g6 4.Bb2 Bg7 5.g3 0–0 6.Bg2 e5 7.0–0 h6 8.c4 
   (8.Nbd2 Nh7 9.Qc1 f5 10.Re1 Nd7 11.Nh4 g5 12.Nhf3 Nhf6 13.a3 Nb6 
   14.a4 Be6 15.a5 Nbd7 16.c4 f4 17.Qc2 Re8 18.Rf1 Nf8 19.Nb3 Ng6 20.c5 
   g4 21.Nfd2 d5 22.e4 f3 linakip–stanislawtym/kurnik 2012/1–0 (36)) 
8...Be6 9.Qc2N 
   (9.Nbd2 Qc8 (9...Qd7 10.c5 Bh3 11.cd6 cd6 12.a4 Re8 13.b5 Bg2 14.Kg2 
   Qe6 15.Rc1 Nbd7 16.Nc4 Nb6 17.e4 Nc4 18.Rc4 Rac8 19.Qe2 Rc4 20.dc4 Rc8 
   21.Nd2 h5 22.Qe3 b6 23.h3 Kh7 24.f4 Davis,E–Buchanan,W/SCO–ch St 
   Andrews 1983/½–½ (70)) 10.Qc2 Nc6 11.b5 Ne7 12.Rfc1 b6 13.d4 
   Nd7 14.de5 de5 15.Bc3 c5 16.a4 a5 17.Qb2 Qc7 18.Ne1 Rad8 19.Nd3 Nf5 
   20.Re1 Rfe8 21.Rac1 f6 22.Bd5 Nf8 23.e4 Nd4 Sigurjonsson–Belkadi/
   Lugano 1968 (38); 
   9.Nc3 Qd7 10.Re1 Bh3 11.Bh1 Nc6 12.b5 Ne7 13.a4 Ng4 14.Nd2 f5 15.Bb7 
   f4 16.Nde4 Rab8 17.Bd5 Kh8 18.Qd2 h5 19.f3 Ne3 20.gf4 ef4 21.Nf2 c6 
   22.Be4 d5 23.bc6 Qc6 Benidze,D (2505)–Isik,E (2180)/Troya Open, 
   Canakkale TUR 2010/1–0 (53)) 
9...c6 10.Nbd2 Nbd7 11.d4 e4 12.Ne4 Ne4 13.Qe4 Bc4 14.Qc2 Nb6 15.a4 a5 
16.Rfe1 Be6 
   (worse is 16...ab4 17.a5+/–) 
17.ba5 Nc4 18.Bc3 Na5 19.Rab1 Qd7 20.e4 Nc4 21.Bb4 Rfc8 22.Nd2 Nd2 23.Bd2 
Kh7 24.Bc3 d5 25.Rb6 c5 Attacks the isolani on a4 26.Qb2 Rc7 
   (26...cd4!? 27.Bd4 Bd4 28.Qd4 Ra4+=) 
27.ed5+= Bd5 28.Bd5 Qd5 29.dc5 Bc3 30.Qc3 Ra4 31.Re8 
   (31.Qe5 Qc5 32.Qc5 Rc5 33.Rb7 Kg7=) 
31...Qd1 
   (31...Rd4!? 32.Rb1 Rc5–/+) 
32.Kg2= Qd5 33.f3 Qd4 34.Qd4 Rd4 35.Rb5 Rd5 36.Rb8 b7 gets attention 
36...Rdc5 37.Rc5 Rc5 38.Rb7 ½–½

Play 1.b4 at Chessworld.net!

Chessworld.net on behalf of Marek have set up a continuous stream of 1.b4 tournaments.

These tournaments should always be available to join. As soon as four players are paired, another one will automatically be set up.

Available lines:
• 1.b4 (4 players, 1 day/move)
• 1.b4 e5 2.Bb2 Bb4 3.Be5 Nf6 (4 players, 3 days/move)
• 1.b4 e5 2.Bb2 Bb4 3.f4 ef4 4.Bg7 Qh4 5.g3 fg3 6.Bg2 gh2 7.Kf1 hg1Q 8.Kg1 (Kucharkowski-Meybohm gambit, 6 players, 10 days move)
• 1.b4 e5 2.Bb2 f6 3.e4 Bb4 4.Bc4 (Sokolski gambit, 4 players, 3 days/move)
• 1.c4 Nf6 2.b4 (English orangutan, 4 players, 3 days/move)
• 1.e4 c5 2.b4 (Sicilian: Wing gambit, 4 players, 10 days/move)
• 1.e4 e6 2.Nf3 d5 3.e5 c5 4.b4 (French: Wing gambit, 4 players, 3 days/move)

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2014-12-01 Alexandr Krivoshapko