ASEAN Primary School Sport Olympiad
Jakarta, Indonesia
R3 Standard Event G/90
White: Raul Sol Cruz, Jr. [Philippines]
Black: Harleiff bin Hannif [Malaysia]
Sicilian Defense B50
1.e4 c5 2.Nf3 d6 3.c3 Nf6 4.Be2
Rhal have reached this position several times in the past; Alcausin in February 2010, Alfonso and Castro in April 2010.
4... a6 5.O-O Nbd7 6.d3 Qc7 7.Nbd2 e6 8.d4 cxd4 9.cxd4 b5 10.Re1 Be7
11... Bb7 12.Bf1 O-O 13.Bb2 Rfc8 14.Rc1
Fight for the possesion of open files. Heisman in Element of Positional Evaluation
14... Qb6 15.Qe2 Rxc1 16.Rxc1 Rc8 17.Rxc8+ Bxc8
18.g3
[18.Qe1 - 19.Bd3]
You try to identify the least active piece, the worst piece, in your own camp, and you look for a way to activate it. Kosikov in Elements of Chess Strategy
18... Bb7 19.Bg2 Qc7 20.Qd3 d5
21.e5
[21.Ne5]
21... Ne4 22.Ne1
[22.Nb1]
24... Qxc2 25.Nxc2 b4 26.Bf1 Nb8 27.a3 Na6 28.a4 Nc7 29.Bc1 Ba6 30.Bxa6 Nxa6 31.Be3 f6 32.f4 Nb8 33.Kf2 Kf7 34.Kf3 Nc6 35.h4 f5 36.Bf2 Nb8 37.Ne1 Na6 38.Nc2 h6 39.h5 g6 40.hxg6+ Kxg6
Result: 1/2- 1/2
Jakarta, Indonesia
R3 Standard Event G/90
White: Raul Sol Cruz, Jr. [Philippines]
Black: Harleiff bin Hannif [Malaysia]
Sicilian Defense B50
1.e4 c5 2.Nf3 d6 3.c3 Nf6 4.Be2
Rhal have reached this position several times in the past; Alcausin in February 2010, Alfonso and Castro in April 2010.
4... a6 5.O-O Nbd7 6.d3 Qc7 7.Nbd2 e6 8.d4 cxd4 9.cxd4 b5 10.Re1 Be7
11.b3
[11.a4 b4 12.Bd3 O-O 13.Nb3 Bb7 14.Bd2 a5 15.Rc1]11... Bb7 12.Bf1 O-O 13.Bb2 Rfc8 14.Rc1
Fight for the possesion of open files. Heisman in Element of Positional Evaluation
14... Qb6 15.Qe2 Rxc1 16.Rxc1 Rc8 17.Rxc8+ Bxc8
[18.Qe1 - 19.Bd3]
You try to identify the least active piece, the worst piece, in your own camp, and you look for a way to activate it. Kosikov in Elements of Chess Strategy
18... Bb7 19.Bg2 Qc7 20.Qd3 d5
[21.Ne5]
21... Ne4 22.Ne1
[22.Nb1]
22... Nxd2 [22... Qa5!] 23.Qxd2 a5
24.Qc2
[24.Nd3 - 25.Bf3 - 26.Kg2]24... Qxc2 25.Nxc2 b4 26.Bf1 Nb8 27.a3 Na6 28.a4 Nc7 29.Bc1 Ba6 30.Bxa6 Nxa6 31.Be3 f6 32.f4 Nb8 33.Kf2 Kf7 34.Kf3 Nc6 35.h4 f5 36.Bf2 Nb8 37.Ne1 Na6 38.Nc2 h6 39.h5 g6 40.hxg6+ Kxg6
Result: 1/2- 1/2
11.b3?-a serious mistake- the rule here: the pawn is the soul of chess; it may rule or break the game! With b3, Black can continue with Bb7 12.Bf1 (11.Bd3? Qc3-+) Rc8 with an edge; Black controls the c-file & an invasion with Qc2 later.
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