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Subject: Nxg5 sacrifice + long-term pin

Author: Alastair Scott

Date: 12:24:39 03/05/02


Given that I'm a weakish player the programs below should've beaten me easily.
Not so, and it looks as though the Nxg5 sacrifice (with subsequent Bxg5 and a
long-term pin along the h4-d8 diagonal) may be a general difficulty; the Crafty
game is particularly interesting.

(Both games 'game in 15')

[Event "Casual Game"]
[Site "London, United Kingdom"]
[Date "2002.02.26"]
[Round "1"]
[White "Alastair Scott"]
[Black "Crafty 18.13 (PIII/500)"]
[Result "1/2-1/2"]

1.e4 c6 2.d4 d5 3.Nc3 dxe4 4.Nxe4 Nd7 5.Nf3 Ngf6 6.Bd3 Nxe4 7.Bxe4 Nf6 8.Bd3 Bg4
9.Be2 e6 10.c3 Bd6 11.O-O
O-O 12.Bg5 h6 13.Bh4 c5 14.h3 Bf5 15.Bd3 Bxd3 16.Qxd3 g5 17.Nxg5 hxg5 18.Bxg5
cxd4 19. cxd4 Rc8 20.f4 Kg7
21.f5 e5 22.Qg3 Ne4 23.f6+ Kg6 24.Qg4 Nxg5 25.h4 Qxf6 26.Rxf6+ Kxf6 27.Qxg5+ Ke6
28.Re1 f6 29.Qg4+ Ke7
30.dxe5 fxe5 31.Qg7+ Rf7 32.Qg5+ Rf6 33.h5 Ke6 34.h6 Rh8 35.h7 Bc5+ 36.Re3 Bxe3+
37.Qxe3 Rf7 38.Qb3+ Kf6
39.Qe3 Rhxh7 40.Qxa7 Rh4 41.Qb6+ Kf5 42.Qf2+ Rf4 43.Qc2+ e4 44.b4 Rh7 45.Qc5+
Ke6 46.b5 Rhf7 47.a4 Rf1+
48.Kh2 Rh7+ 49.Kg3 Rg7+ 50.Kh2 Rh7+ 51.Kg3 Rg7+ 52.Kh2 Rh7+ 53. Kg3 Rg7+ 54.Kh2
Rh7+ 55.Kg3 Rg7+ 1/2-1/2

[Event "Casual Game"]
[Site "London, United Kingdom"]
[Date "2002.03.03"]
[Round "1"]
[White "Alastair Scott"]
[Black "Chess Tiger 14.7 for PalmOS (33MHz)"]
[Result "1-0"]

1.e4 e5 2.Nf3 Nc6 3.Bb5 a6 4.Ba4 Nf6 5.O-O Be7 6.Re1 b5 7.Bb3 d6 8.c3 O-O 9.h3
Na5 10.Bc2 c5 11.d4 Qc7
12.d5 Rd8 13.Nbd2 Bf8 14.Nf1 Nc4 15.b3 Nb6 16.Ng3 h6 17.Nh4 g6 18.Be3 Qe7 19.Nf3
g5 20.Nxg5 hxg5 21.Bxg5
Ra7 22.Nh5 Bg7 23.Qf3 Nbd7 24.Nxg7 Kxg7 25.Re3 Rg8 26.h4 Nb6 27.h5 Rh8 28.h6+
Rxh6 29.Bxh6+ Kxh6 30.Qg3 Ng4
31.Qh3+ Kg7 32.Rg3 Qg5 33.Bd1 Nxd5 34.exd5 f5 35.Bxg4 fxg4 36.Qh2 Qf4 37.Qh5 Rf7
38.Rf1 Rf8 39.Qh4 Bf5
40.Qe7+ Rf7 41.Qxd6 Kh8 42.Qxa6 Be4 43.d6 Rf8 44.d7 Qf5 45.Qd6 Rd8 46.Rd1 Qg5
47.Qxc5 Bc2 48.Rd6 Qf4 49.Qc8
Qf8 50.Qc5 Qf4 51.Qxb5 Bf5 52.Qd5 Kg7 53.Re3 g3 54.Rxg3+ Bg4 55.Rxg4+ Qxg4
56.Qxe5+ Kg8 57.Qe8+ Rxe8
58.dxe8Q+ Kh7 59.Qg6+ Qxg6 60.Rxg6 Kxg6 61.a4 Kf5 62.a5 Ke4 63.a6 Kd3 64.c4 Kc3
65.a7 Kxb3 66.c5 Kb4 67.c6
Kc5 68.a8Q Kb6 69.Qb7+ Ka5 70.c7 Ka4 71.c8Q Ka3 72.Qc3+ Ka2 73.Qbb2# 1-0



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