Sunday, May 15, 2011

Game of the Week

T.Scott - M.Rohe
05.05.2011
Spring Green General Store, Spring Green, WI
Time Control: G/40 +5
[A47: 1 d4 Nf6 2 Nf3 b6: Torre, London and Colle Systems]

1.d4 Nf6 2.Nf3 b6
Queen’s Indian Defense (A47)

3.Nc3 Bb7 4.e4 Nxe4= 5.Nxe4 Bxe4
Black has a cramped position. Black's piece can't move: f8

6.Bd3
White threatens to win material: Bd3xe4

6...Bb7
Trading the light squared bishops may have been slightly better for Black.

 7.Bf4 e6
Black is behind in development

8.0–0 c5
[8...Bd6 9.Ne5³]

9.c3 cxd4 10.cxd4
[10.Nxd4 a6²]
Nxd4 avoids an isolated pawn for White.

10...Be7= 11.Qe2 0–0
Black is behind in development.

12.Rac1 Nc6 13.Qe4 g6 14.a3
Black has a cramped position
White could have taken some initiative by playing Bh6, attacking the rook.

14...Bf6
Attacking the isolated pawn on d4

15.Be5??
[¹15.Bd6 was possible 15...Re8 16.Qe3³]

15...Nxe5–+ 16.Qxb7 Nxd3 17.Rc3
[17.Rc2 doesn't do any good 17...Rc8 18.Rd2 Nf4–+]

17...Nf4 18.Rc7
[18.Qe4 doesn't improve anything 18...Nd5 19.Rc2 Rc8–+]

18...Qb8
With Black ahead a piece + a pawn, forcing the trade of queens is the thing to do and diminishes White's chances of a quick mating attack.

 19.Rxd7

[19.Rd1 doesn't get the bull off the ice 19...Qxb7 20.Rxb7 Rfb8 21.Rxd7 Rd8 22.Rxd8+ Rxd8–+]

19...Qxb7 20.Rxb7 Rfc8
[20...Ne2+ might be the shorter path 21.Kh1 Nxd4 22.Nxd4 Bxd4 23.b3–+]

21.g3
[21.Rd1 is not the saving move 21...Rc2–+]

21...Ne2+ 22.Kg2 Nxd4 23.Nxd4 Bxd4 24.Rd7
[24.Rd1 is not much help 24...Bxb2 25.Rdd7 Rcb8–+]
Better for White is moving the queenside pawns to light squares, making them immune from attack by Black's dark squared bishop.

24...Bxb2 25.Rd3 Rc1 26.Rxc1 Bxc1 27.Rc3 Bg5
[27...Bb2 and Black can already relax 28.Rd3–+]

28.h4 Be7 29.Kh3
[29.Kf3 doesn't change the outcome of the game 29...Rd8–+]

29...Bc5 30.Kg2
[30.f3 does not help much 30...Rd8 31.a4 Kg7–+]

30...Rd8 31.a4 Rd4 32.Rb3
[32.a5 does not improve anything 32...Rd2–+]

32...Rxa4 33.Rd3
[33.Rb2 doesn't get the cat off the tree 33...Bd4 34.Rd2 b5–+]

33...Rd4 34.Rxd4 Bxd4 35.Kf1 a5 36.Ke2 a4 37.Kd3 Bb2
[37...a3 keeps an even firmer grip 38.Kxd4 a2 39.h5–+]
a3 would promote a pawn quicker, but Black has this game well in hand.

38.Kc2 a3 39.Kb1 f5 40.f4 Kf7 41.Ka2 Kf6 42.Kb1
[42.Kb3 is no salvation 42...e5 43.Kc2 e4 44.h5 gxh5 45.Kb3 Ke6 46.g4 hxg4 47.Kc2 Kd5 48.Kb3 g3 49.Ka4 Kc5 50.Kb3 g2 51.Kc2 g1Q 52.Kb3 Qb1 53.Ka4 Qd1#]

42...e5 43.fxe5+ Kxe5 44.Ka2
[44.h5 does not save the day 44...Kd5 45.Kc2 Kc4 46.hxg6 hxg6 47.g4 Bc3 48.Kb1 Kb3 49.Kc1 f4 50.g5 a2 51.Kd1 f3 52.Kc1 a1Q#]

44...Ke4
[44...Kd5 45.Kb3 h5 46.Kc2 Kc4 47.Kd2 Bd4 48.Ke2 a2 49.Kd2 a1Q 50.Ke2 Qb2+ 51.Kd1 Kd3 52.Ke1 Qe2#]

45.Kb3 Kf3
[45...Kd5 46.h5 gxh5 47.g4 hxg4 48.Kc2 Kc4 49.Kd2 Bd4 50.Ke1 a2 51.Kd2 a1Q 52.Ke2 Qa2+ 53.Ke1 Qc2 54.Kf1 Qf2#]

46.Ka2 Kxg3 47.Kb1 f4 48.Ka2
[48.Kc2 cannot undo what has already been done 48...f3 49.Kd3 a2 50.Ke4 a1Q 51.Kd5 Qa8+ 52.Kd6 f2 53.Kc7 f1Q 54.Kxb6 Qb8+ 55.Kc6 Qfb5#]

48...f3 49.Kb1
[49.h5 cannot change destiny 49...f2 50.hxg6 f1Q 51.g7 Bxg7 52.Kb3 Qd3+ 53.Ka4 a2 54.Kb4 Bf8+ 55.Ka4 a1Q#]

49...f2 50.Ka2
[50.Kc2 hardly improves anything 50...Kf3 51.h5 gxh5 52.Kb3 f1Q 53.Kc2 b5 54.Kb3 Qc4#]

50...f1=Q 51.h5
[51.Kb3 doesn't change anything anymore 51...Qb5+ 52.Kc2 a2 53.Kd2 a1Q 54.Ke3 Qe1#]

51...Qc4+ 52.Kb1 a2+
[52...Bd4 53.hxg6 a2#]

53.Kxb2 Qe2+ 54.Ka1 Qc2 55.hxg6 Qb1# 0–1
Black Mates

[Analysis by Deep Rybka 4.1 ]
Annotation by Mike Rohe and Taylor Scott

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