The World - Gert Jan Timmerman [A88]
Chessgames Challenge chessgames.com
3 days per move, majority voting for world team
[Rybka 2.3.2a mp ]
1.d4 f5
2.g3 Nf6
3.Bg2 g6
4.c4 Bg7
5.Nc3 0-0
6.Nf3 d6
7.0-0 c6
8.Qb3
0.35/22
(8.d5 was almost played by the world team, which switched to 8.Qb3 at the last minute. Deep Rybka analysis
at 29-ply suggests 8.Rb1 is the most promising move here.)
8...Na6
9.Rd1 0.35/21 Kh8 0.43/19
(Timmerman took a 1-week extension before playing this move)
10.Qa3 0.34/22
(10.Bd2, 10.Rb1 and 10.Bg5 are the top three moves with a 27-ply Rybka analysis)
10...Nc7 0.34/21
11.d5= 0.21/22
(11.Ng5 Ne6 12.Rb1 Nxg5 13.Bxg5 Be6 14.Bxf6 Bxf6 15.d5 cxd5 16.Nxd5 Bxd5 17.Bxd5 Qd7 0.34)
11...Bd7 0.21/21
12.Rb1 0.20/21
(Plomp-Kamenets, 2002 continued 12.Qb3 Rb8 13.Be3 c5)
12...a5 0.16/22
13.dxc6 0.16/22
bxc6 0.21/22
14.c5 0.22/24 Ne4
0.20/23
15.cxd6 0.18/22 exd6 0.23/23
16.Bf4 0.21/23 d5 0.21/22
17.Be5 0.21/23 Re8 0.21/24
18.Bxg7+ 0.19/23 Kxg7 0.27/24
19.Rbc1 0.21/23 Qe7 0.21/24
20.Qxe7+ 0.19/24 Rxe7 0.22/25
21.Na4 0.20/22 Nb5 0.55/25
(21...Rb8 22.Nd4 Rb4 23.Bxe4 Rxa4 24.Bb1 Rb4 25.b3 Rb6 26.e3 Re8 27.Rc5 0.20 we were expecting this
move)
22.Nb6 0.55/26 Ra6 0.55/27
23.Nxd7 0.46/24 Rxd7 0.52/24
24.Ne5 0.57/27 Rd6 0.52/24
25.f3 0.43/26 Nf6 0.51/26
26.a4 0.51/29 Nc7 0.54/26
27.Bf1 0.51/27 Re6 0.48/24
28.f4 0.51/25 Ne4 0.68/26
(28...Ng4 29.Nxg4 fxg4 30.Rc5 Kf8 31.Rdc1 Ke7 32.e4 Rb6 33.exd5 Nxd5 34.Rxa5 Rxb2 35.Ra7+ 0.51)
29.e3 0.68/28 Rb6 0.68/26
30.Bd3 0.68/25 Na6 0.68/26
31.b4 0.68/26 Nxb4 0.63/25
32.Bxe4 0.71/28 fxe4 0.65/27
33.Nd7 0.72/31 Rb7 0.65/30
34.Nc5 0.69/31 Ree7 0.69/30
35.Nxb7 0.66/27 Rxb7 0.75/28
36.g4 0.74/26 Rc7?? 0.83/30
(The losing move. 36...Kf6=)
37.Rc5 0.82/28 Ra7 0.83/28
38.h4 0.51/27
(38.Kg2 Ra6 39.Rcc1 Kf6 40.h4 Na2 41.Rc2 Nb4 42.Rc3 Ke6 43.h5 Na2 44.Rb3 Nb4 0.83)
38...Ra6� 0.83/28
(38...Kf6 39.Rf1 Ke7 40.f5 Kd6 41.Rcc1 Nd3 42.Rb1 Ne5 43.fxg6 Nf3+ 44.Kg2 hxg6 45.Rh1 0.51)
39.Rcc1 0.77/26 Kf6 0.83/27
40.Rf1! 0.75/26
(In his post-game comments, Timmerman thought this move was strong)
40...Nd3� 1.20/29
(40...h5 41.f5 hxg4 42.fxg6+ Kxg6 43.Rf8 Nd3 44.Rcf1 c5 45.R1f5 Rd6 46.Rg5+ Kh7 47.Rf7+ 0.75)
41.Rb1 1.20/27
(Threatening to penetrate down the b-file)
41...h5 1.26/28
42.gxh5 1.29/29 gxh5 1.29/28
43.Rb8 1.29/26
(The idea of penetrating with both rooks will prove to be the winning idea)
43...c5+- 1.74/26
(43...Ra7 44.Rf8+ Ke7 45.Rh8 Kd6 46.Rh6+ Kc5 47.f5 Rf7 48.Re6 Kb6 49.Kg2 Kc7 50.Kg3 1.29)
44.Rfb1 1.74/27 d4 2.19/27
45.Kf1 1.84/25
(White temporarily sacrifices a pawn in order to get the king into the game)
dxe3+- 2.46/28
(45...Rd6 46.Ke2 Nb4 47.Rh8 Rd5 48.Rg1 Nc2 49.Rg5 Nxe3 50.Rh6+ Ke7 51.Rhxh5 Kd6 52.Rh6+ 1.84)
46.Rf8+ 2.46/27 Ke7 2.46/26
47.Rbb8 2.46/25 Rg6 3.05/25
48.Rbe8+ 3.05/28 Kd6 3.05/27
49.Rxe4 3.05/26 Kd5 3.05/26
50.f5 2.80/26 Rg3?+- 4.42/29
(50...Rg1+ 51.Kxg1 Kxe4 52.f6 Ke5 53.f7 Ke6 54.Kf1 Nf4 55.Re8+ Kxf7 56.Rxe3 Kf6 57.Re8 2.80)
51.Rfe8 4.42/29 c4 3.87/27
52.f6 4.28/26 Rf3+ 3.99/26
53.Ke2 4.47/27 Rxf6 4.43/27
54.Kxe3 4.52/26 Rc6 5.12/27
55.Rd4+ 4.51/26 Kc5 5.12/28
56.Rb8 5.12/27 Re6+ 4.51/25
57.Re4 4.98/23 Rxe4+ 4.51/24
58.Kxe4 5.12/26 Nf2+ 4.63/27
59.Kf3 5.12/24 Ng4 5.12/24
60.Rb5+ 5.74/24 Kd4 5.12/25
61.Rxh5 5.12/23 c3 5.12/22
62.Ke2 5.85/21 1-0
