about analysis of correspondence game

[Uri Blass]

It seems that Fritz was used for the analysis in the following link

http://www.iccf.com/content/index.php?o ... &Itemid=83

It is written that 31.h6 is a computer move but rybka does not see it when my old Fritz8 see it immediately.

[D]6k1/p2q1pp1/1p1Pp3/5nQP/2rP4/P2R4/5P2/3R2K1 w - - 0 1

Analysis by Rybka 2.2n2 32-bit :

31.d4-d5
± (0.71) Depth: 2 00:00:00
31.d4-d5
² (0.66) Depth: 3 00:00:00
31.d4-d5
² (0.35) Depth: 4 00:00:00
31.h5-h6
² (0.56) Depth: 4 00:00:00
31.h5-h6 f7-f6
² (0.55) Depth: 5 00:00:00
31.h5-h6 f7-f6 32.Qg5-g6
² (0.45) Depth: 6 00:00:00 7kN
31.h5-h6 f7-f6 32.Qg5-g2 Nf5xh6
= (0.25) Depth: 7 00:00:00 16kN
31.d4-d5 e6-e5 32.h5-h6 f7-f6
² (0.31) Depth: 7 00:00:00 21kN
31.d4-d5 e6-e5 32.h5-h6 f7-f6 33.Qg5-d2
= (0.11) Depth: 8 00:00:00 40kN
31.Qg5-g2 Qd7xd6 32.Qg2-a8+ Kg8-h7 33.Qa8xa7 Rc4xd4
= (0.16) Depth: 8 00:00:00 64kN
31.Qg5-f4 Kg8-h7 32.Qf4-e5 f7-f6 33.Qe5-e2
= (0.19) Depth: 8 00:00:01 117kN
31.Rd1-c1 f7-f6 32.Qg5-d2 b6-b5 33.Rc1xc4
² (0.30) Depth: 8 00:00:01 123kN
31.Rd1-c1 f7-f6 32.Qg5-d2 b6-b5 33.Rc1xc4 b5xc4 34.Rd3-c3
² (0.30) Depth: 9 00:00:01 134kN
31.Rd1-c1 f7-f6 32.Qg5-d2 b6-b5 33.Rc1xc4 b5xc4 34.Rd3-c3 Nf5xd6
² (0.49) Depth: 10 00:00:03 200kN
31.Rd1-c1 f7-f6 32.Qg5-d2 b6-b5 33.Rc1xc4 b5xc4 34.Rd3-c3 Nf5xd6 35.Qd2-f4
² (0.33) Depth: 11 00:00:04 233kN
31.Rd1-e1 f7-f6 32.Qg5-g6 Rc4xd4 33.Rd3xd4 Nf5xd4 34.Qg6-g4 Qd7xd6 35.Re1-c1
² (0.45) Depth: 11 00:00:05 331kN
31.Rd1-e1 f7-f6 32.Qg5-g6 Rc4xd4 33.Rd3xd4 Nf5xd4 34.Qg6-g4 Qd7xd6 35.Re1-c1 Qd6-d8
² (0.46) Depth: 12 00:00:05 393kN
31.Rd1-e1 f7-f6 32.Qg5-g6 a7-a5 33.h5-h6 Nf5xh6 34.Qg6-e4
² (0.48) Depth: 13 00:00:13 989kN
31.Rd1-e1 f7-f6 32.Qg5-g6 a7-a6 33.h5-h6 Nf5xh6 34.Qg6-e4
² (0.43) Depth: 14 00:00:27 1995kN
31.Rd1-c1 f7-f6 32.Qg5-d2 b6-b5 33.Rc1xc4 b5xc4 34.Rd3-c3 Nf5xd6 35.Qd2-f4 Kg8-h7 36.Qf4-g4 Qd7-f7
² (0.47) Depth: 14 00:00:29 2149kN
31.Rd1-c1 Rc4xc1+ 32.Qg5xc1 Qd7xd6 33.Qc1-c8+ Kg8-h7 34.d4-d5 Qd6-e5 35.Qc8-c3 Qe5-f4 36.d5xe6 f7xe6 37.Qc3-c6 Qf4-e5
² (0.56) Depth: 15 00:00:51 3738kN
31.Rd1-c1 Rc4xc1+ 32.Qg5xc1 Qd7xd6 33.Qc1-c8+ Kg8-h7 34.d4-d5 Qd6-e5 35.Qc8-c3 Qe5-f4 36.d5xe6 Qf4-g4+ 37.Kg1-f1 f7xe6
² (0.58) Depth: 16 00:01:07 4806kN
31.Rd1-c1 Rc4xc1+ 32.Qg5xc1 Qd7xd6 33.Qc1-c8+ Kg8-h7 34.d4-d5 Qd6-e5 35.Qc8-c3 Qe5-f4 36.d5xe6 Qf4-g4+ 37.Kg1-f1 f7xe6
² (0.56) Depth: 17 00:01:42 7134kN
31.Rd1-c1 Rc4xc1+ 32.Qg5xc1 Qd7xd6 33.Qc1-c8+ Kg8-h7 34.d4-d5 Qd6-e5 35.Qc8-c3 Qe5-f4 36.d5xe6 Qf4-g4+ 37.Kg1-f1 f7xe6
² (0.53) Depth: 18 00:02:28 10846kN
31.Rd1-c1 Rc4xc1+ 32.Qg5xc1 Qd7xd6 33.Qc1-c8+ Kg8-h7 34.d4-d5 Qd6-e5 35.Qc8-c3 Qe5-f4 36.d5xe6 Qf4-g4+ 37.Kg1-f1 f7xe6
² (0.53) Depth: 19 00:03:53 17952kN
31.Rd1-c1 Rc4xc1+ 32.Qg5xc1 Qd7xd6 33.Qc1-c8+ Kg8-h7 34.d4-d5 Qd6-e5 35.Qc8-c3 Qe5-f4 36.d5xe6 Qf4-g4+ 37.Kg1-f1 f7xe6
² (0.48) Depth: 20 00:10:15 46084kN
31.Rd1-c1 b6-b5 32.d4-d5 Qd7xd6 33.Rc1-e1 Kg8-f8 34.Re1-d1 Kf8-g8 35.h5-h6 Nf5xh6 36.d5xe6 Qd6xe6 37.Qg5xb5 Qe6-g4+
² (0.45) Depth: 21 00:19:49 91637kN
31.Rd1-c1 b6-b5 32.d4-d5 Qd7xd6 33.Rc1-e1 Kg8-f8 34.Re1-d1 Kf8-g8 35.h5-h6 Nf5xh6 36.d5xe6 Qd6xe6 37.Qg5xb5 Qe6-g4+
² (0.45) Depth: 22 00:30:47 145699kN

(, 13.05.2007)


New game - Glaurung 2-epsilon/2, Blitz:3'
6k1/p2q1pp1/1p1Pp3/5nQP/2rP4/P2R4/5P2/3R2K1 w - - 0 1

Analysis by Rybka 2.3.1 32-bit :

31.h5-h6
² (0.41) Depth: 2 00:00:00
31.d4-d5
² (0.56) Depth: 2 00:00:00
31.d4-d5
² (0.48) Depth: 3 00:00:00
31.d4-d5
² (0.42) Depth: 4 00:00:00
31.d4-d5 Qd7xd6
² (0.41) Depth: 5 00:00:00
31.d4-d5 Qd7xd6 32.d5xe6 Qd6xe6
= (0.18) Depth: 6 00:00:00 16kN
31.h5-h6 f7-f6 32.Qg5-g6
² (0.41) Depth: 6 00:00:00 18kN
31.h5-h6 f7-f6 32.Qg5-g2 Nf5xh6
= (0.13) Depth: 7 00:00:00 33kN
31.Rd3-h3 Qd7xd6 32.h5-h6 Rc4xd4 33.Rd1xd4
² (0.30) Depth: 7 00:00:00 54kN
31.Rd3-h3 Kg8-h7 32.h5-h6 g7xh6 33.Qg5-f6 Kh7-g8
= (0.13) Depth: 8 00:00:01 68kN
31.Rd3-h3 Kg8-h7 32.d4-d5 Qd7xd6 33.Rh3-d3 Qd6-d7
= (0.04) Depth: 9 00:00:01 97kN
31.Qg5-f4 f7-f6 32.Qf4-f3 b6-b5 33.d4-d5 e6-e5
= (0.25) Depth: 9 00:00:04 291kN
31.Qg5-f4 Kg8-h7 32.Qf4-e5 Nf5xd6 33.d4-d5 Rc4-g4+ 34.Kg1-f1 Nd6-c4
= (0.20) Depth: 10 00:00:05 349kN
31.Qg5-f4 Kg8-h7 32.Qf4-e5 Nf5xd6 33.d4-d5 Rc4-g4+ 34.Kg1-f1 Nd6-c4 35.Qe5-c3
= (0.08) Depth: 11 00:00:06 399kN
31.Rd1-e1 Qd7xd6 32.d4-d5 Kg8-f8 33.Rd3-d1 Rc4-h4 34.Qg5-g2 e6-e5
² (0.46) Depth: 11 00:00:09 591kN
31.Rd1-e1 Qd7xd6 32.d4-d5 Kg8-f8 33.Rd3-d1 Rc4-h4 34.Qg5-g2 Nf5-d4 35.h5-h6
= (0.14) Depth: 12 00:00:10 649kN
31.Rd1-e1 Qd7xd6 32.d4-d5 Kg8-f8 33.Re1-d1 Kf8-g8 34.d5xe6 Qd6xe6 35.Rd3-d5 Nf5-h4 36.Qg5-e3 Rc4-g4+ 37.Kg1-h1
² (0.26) Depth: 13 00:00:12 807kN
31.Rd1-e1 Qd7xd6 32.d4-d5 Kg8-f8 33.Rd3-d1 Rc4-h4 34.Qg5-g2 Nf5-d4 35.h5-h6 g7xh6 36.d5xe6 f7xe6 37.Rd1-c1
= (0.15) Depth: 14 00:00:18 1199kN
31.Rd3-h3 Qd7xd6 32.h5-h6 Rc4xd4 33.Rd1xd4 Qd6xd4
² (0.41) Depth: 14 00:00:37 2424kN
31.Rd3-h3 Qd7xd6 32.h5-h6 Rc4xd4 33.Rd1xd4 Qd6xd4
² (0.42) Depth: 15 00:00:44 2861kN
31.Rd3-h3 Qd7xd6 32.h5-h6 Rc4xd4 33.Rd1xd4 Qd6xd4
² (0.40) Depth: 16 00:00:53 3490kN
31.Rd3-h3 Qd7xd6 32.h5-h6 Rc4xd4 33.Rd1xd4 Qd6xd4
² (0.37) Depth: 17 00:01:12 4821kN
31.Rd3-h3 Qd7xd6 32.h5-h6 Rc4xd4 33.Rd1xd4 Qd6xd4 34.h6xg7
² (0.41) Depth: 18 00:01:54 7535kN
31.Rd3-h3 Qd7xd6 32.h5-h6 Rc4xd4 33.Rd1xd4 Qd6xd4 34.h6xg7 Qd4-d1+
² (0.42) Depth: 19 00:03:28 14031kN
31.Rd3-h3 Qd7xd6 32.h5-h6 Rc4xd4 33.Rd1xd4 Qd6xd4 34.h6xg7 Qd4-d1+
² (0.42) Depth: 20 00:05:27 21664kN

(, 13.05.2007)


New game - Glaurung 2-epsilon/2, Blitz:3'
6k1/p2q1pp1/1p1Pp3/5nQP/2rP4/P2R4/5P2/3R2K1 w - - 0 1

Analysis by Fritz 8:

31.h5-h6 f7-f6 32.Qg5-g6 Nf5xh6 33.Rd3-h3 Nh6-f7 34.Rd1-e1 Nf7xd6
± (1.06) Depth: 7/21 00:00:00 52kN
31.h5-h6 f7-f6 32.Qg5-g6 Nf5xh6 33.Rd3-h3 Kg8-f8 34.Rd1-e1 Nh6-f7 35.Rh3-h7 Nf7xd6
± (1.00) Depth: 8/21 00:00:00 108kN
31.h5-h6 f7-f6 32.Qg5-g6 Nf5xh6 33.Rd3-h3 Kg8-f8 34.Rd1-e1 Nh6-f7 35.Rh3-h7 Nf7xd6
± (1.00) Depth: 9/22 00:00:00 303kN
31.h5-h6 f7-f6 32.Qg5-g6 Nf5xh6 33.Rd3-h3 Kg8-h8 34.Rh3-f3 Qd7xd6 35.Rf3-g3 Qd6-d7
± (0.78) Depth: 10/22 00:00:00 785kN
31.h5-h6 f7-f6 32.Qg5-g6 Nf5xh6 33.Rd3-h3 Kg8-h8 34.Rh3-f3 Qd7xd6 35.Qg6-e8+ Kh8-h7 36.Rf3-g3 g7-g5 37.Rd1-e1 Rc4-c2
± (0.84) Depth: 11/34 00:00:02 2814kN
31.h5-h6 f7-f6 32.Qg5-g6 Nf5xh6 33.Rd3-h3 Nh6-f7 34.Qg6-h7+ Kg8-f8 35.Rh3-g3 Nf7-g5 36.Qh7-h8+ Kf8-f7 37.d4-d5 Qd7xd6 38.d5xe6+
± (0.78) Depth: 12/28 00:00:05 6695kN
31.h5-h6 f7-f6 32.Qg5-g6 Nf5xh6 33.Rd3-h3 Nh6-f5 34.Qg6-h7+ Kg8-f8 35.Qh7-h8+ Kf8-f7 36.Qh8-h5+
± (1.03) Depth: 13/35 00:00:17 20759kN

(, 13.05.2007)

[Terry McCracken]

h6 looks like a human move as well.

One move a computer does not make

[Marc MP]

It seems that Fritz was used for the analysis in the following link

http://www.iccf.com/content/index.php?o ... &Itemid=83

It is written that 31.h6 is a computer move but rybka does not see it when my old Fritz8 see it immediately.

[D]6k1/p2q1pp1/1p1Pp3/5nQP/2rP4/P2R4/5P2/3R2K1 w - - 0 1

Analysis by Rybka 2.2n2 32-bit :

31.d4-d5
± (0.71) Depth: 2 00:00:00
31.d4-d5
² (0.66) Depth: 3 00:00:00
31.d4-d5
² (0.35) Depth: 4 00:00:00
31.h5-h6
² (0.56) Depth: 4 00:00:00
31.h5-h6 f7-f6
² (0.55) Depth: 5 00:00:00
31.h5-h6 f7-f6 32.Qg5-g6
² (0.45) Depth: 6 00:00:00 7kN
31.h5-h6 f7-f6 32.Qg5-g2 Nf5xh6
= (0.25) Depth: 7 00:00:00 16kN
31.d4-d5 e6-e5 32.h5-h6 f7-f6
² (0.31) Depth: 7 00:00:00 21kN
31.d4-d5 e6-e5 32.h5-h6 f7-f6 33.Qg5-d2
= (0.11) Depth: 8 00:00:00 40kN
31.Qg5-g2 Qd7xd6 32.Qg2-a8+ Kg8-h7 33.Qa8xa7 Rc4xd4
= (0.16) Depth: 8 00:00:00 64kN
31.Qg5-f4 Kg8-h7 32.Qf4-e5 f7-f6 33.Qe5-e2
= (0.19) Depth: 8 00:00:01 117kN
31.Rd1-c1 f7-f6 32.Qg5-d2 b6-b5 33.Rc1xc4
² (0.30) Depth: 8 00:00:01 123kN
31.Rd1-c1 f7-f6 32.Qg5-d2 b6-b5 33.Rc1xc4 b5xc4 34.Rd3-c3
² (0.30) Depth: 9 00:00:01 134kN
31.Rd1-c1 f7-f6 32.Qg5-d2 b6-b5 33.Rc1xc4 b5xc4 34.Rd3-c3 Nf5xd6
² (0.49) Depth: 10 00:00:03 200kN
31.Rd1-c1 f7-f6 32.Qg5-d2 b6-b5 33.Rc1xc4 b5xc4 34.Rd3-c3 Nf5xd6 35.Qd2-f4
² (0.33) Depth: 11 00:00:04 233kN
31.Rd1-e1 f7-f6 32.Qg5-g6 Rc4xd4 33.Rd3xd4 Nf5xd4 34.Qg6-g4 Qd7xd6 35.Re1-c1
² (0.45) Depth: 11 00:00:05 331kN
31.Rd1-e1 f7-f6 32.Qg5-g6 Rc4xd4 33.Rd3xd4 Nf5xd4 34.Qg6-g4 Qd7xd6 35.Re1-c1 Qd6-d8
² (0.46) Depth: 12 00:00:05 393kN
31.Rd1-e1 f7-f6 32.Qg5-g6 a7-a5 33.h5-h6 Nf5xh6 34.Qg6-e4
² (0.48) Depth: 13 00:00:13 989kN
31.Rd1-e1 f7-f6 32.Qg5-g6 a7-a6 33.h5-h6 Nf5xh6 34.Qg6-e4
² (0.43) Depth: 14 00:00:27 1995kN
31.Rd1-c1 f7-f6 32.Qg5-d2 b6-b5 33.Rc1xc4 b5xc4 34.Rd3-c3 Nf5xd6 35.Qd2-f4 Kg8-h7 36.Qf4-g4 Qd7-f7
² (0.47) Depth: 14 00:00:29 2149kN
31.Rd1-c1 Rc4xc1+ 32.Qg5xc1 Qd7xd6 33.Qc1-c8+ Kg8-h7 34.d4-d5 Qd6-e5 35.Qc8-c3 Qe5-f4 36.d5xe6 f7xe6 37.Qc3-c6 Qf4-e5
² (0.56) Depth: 15 00:00:51 3738kN
31.Rd1-c1 Rc4xc1+ 32.Qg5xc1 Qd7xd6 33.Qc1-c8+ Kg8-h7 34.d4-d5 Qd6-e5 35.Qc8-c3 Qe5-f4 36.d5xe6 Qf4-g4+ 37.Kg1-f1 f7xe6
² (0.58) Depth: 16 00:01:07 4806kN
31.Rd1-c1 Rc4xc1+ 32.Qg5xc1 Qd7xd6 33.Qc1-c8+ Kg8-h7 34.d4-d5 Qd6-e5 35.Qc8-c3 Qe5-f4 36.d5xe6 Qf4-g4+ 37.Kg1-f1 f7xe6
² (0.56) Depth: 17 00:01:42 7134kN
31.Rd1-c1 Rc4xc1+ 32.Qg5xc1 Qd7xd6 33.Qc1-c8+ Kg8-h7 34.d4-d5 Qd6-e5 35.Qc8-c3 Qe5-f4 36.d5xe6 Qf4-g4+ 37.Kg1-f1 f7xe6
² (0.53) Depth: 18 00:02:28 10846kN
31.Rd1-c1 Rc4xc1+ 32.Qg5xc1 Qd7xd6 33.Qc1-c8+ Kg8-h7 34.d4-d5 Qd6-e5 35.Qc8-c3 Qe5-f4 36.d5xe6 Qf4-g4+ 37.Kg1-f1 f7xe6
² (0.53) Depth: 19 00:03:53 17952kN
31.Rd1-c1 Rc4xc1+ 32.Qg5xc1 Qd7xd6 33.Qc1-c8+ Kg8-h7 34.d4-d5 Qd6-e5 35.Qc8-c3 Qe5-f4 36.d5xe6 Qf4-g4+ 37.Kg1-f1 f7xe6
² (0.48) Depth: 20 00:10:15 46084kN
31.Rd1-c1 b6-b5 32.d4-d5 Qd7xd6 33.Rc1-e1 Kg8-f8 34.Re1-d1 Kf8-g8 35.h5-h6 Nf5xh6 36.d5xe6 Qd6xe6 37.Qg5xb5 Qe6-g4+
² (0.45) Depth: 21 00:19:49 91637kN
31.Rd1-c1 b6-b5 32.d4-d5 Qd7xd6 33.Rc1-e1 Kg8-f8 34.Re1-d1 Kf8-g8 35.h5-h6 Nf5xh6 36.d5xe6 Qd6xe6 37.Qg5xb5 Qe6-g4+
² (0.45) Depth: 22 00:30:47 145699kN

(, 13.05.2007)


New game - Glaurung 2-epsilon/2, Blitz:3'
6k1/p2q1pp1/1p1Pp3/5nQP/2rP4/P2R4/5P2/3R2K1 w - - 0 1

Analysis by Rybka 2.3.1 32-bit :

31.h5-h6
² (0.41) Depth: 2 00:00:00
31.d4-d5
² (0.56) Depth: 2 00:00:00
31.d4-d5
² (0.48) Depth: 3 00:00:00
31.d4-d5
² (0.42) Depth: 4 00:00:00
31.d4-d5 Qd7xd6
² (0.41) Depth: 5 00:00:00
31.d4-d5 Qd7xd6 32.d5xe6 Qd6xe6
= (0.18) Depth: 6 00:00:00 16kN
31.h5-h6 f7-f6 32.Qg5-g6
² (0.41) Depth: 6 00:00:00 18kN
31.h5-h6 f7-f6 32.Qg5-g2 Nf5xh6
= (0.13) Depth: 7 00:00:00 33kN
31.Rd3-h3 Qd7xd6 32.h5-h6 Rc4xd4 33.Rd1xd4
² (0.30) Depth: 7 00:00:00 54kN
31.Rd3-h3 Kg8-h7 32.h5-h6 g7xh6 33.Qg5-f6 Kh7-g8
= (0.13) Depth: 8 00:00:01 68kN
31.Rd3-h3 Kg8-h7 32.d4-d5 Qd7xd6 33.Rh3-d3 Qd6-d7
= (0.04) Depth: 9 00:00:01 97kN
31.Qg5-f4 f7-f6 32.Qf4-f3 b6-b5 33.d4-d5 e6-e5
= (0.25) Depth: 9 00:00:04 291kN
31.Qg5-f4 Kg8-h7 32.Qf4-e5 Nf5xd6 33.d4-d5 Rc4-g4+ 34.Kg1-f1 Nd6-c4
= (0.20) Depth: 10 00:00:05 349kN
31.Qg5-f4 Kg8-h7 32.Qf4-e5 Nf5xd6 33.d4-d5 Rc4-g4+ 34.Kg1-f1 Nd6-c4 35.Qe5-c3
= (0.08) Depth: 11 00:00:06 399kN
31.Rd1-e1 Qd7xd6 32.d4-d5 Kg8-f8 33.Rd3-d1 Rc4-h4 34.Qg5-g2 e6-e5
² (0.46) Depth: 11 00:00:09 591kN
31.Rd1-e1 Qd7xd6 32.d4-d5 Kg8-f8 33.Rd3-d1 Rc4-h4 34.Qg5-g2 Nf5-d4 35.h5-h6
= (0.14) Depth: 12 00:00:10 649kN
31.Rd1-e1 Qd7xd6 32.d4-d5 Kg8-f8 33.Re1-d1 Kf8-g8 34.d5xe6 Qd6xe6 35.Rd3-d5 Nf5-h4 36.Qg5-e3 Rc4-g4+ 37.Kg1-h1
² (0.26) Depth: 13 00:00:12 807kN
31.Rd1-e1 Qd7xd6 32.d4-d5 Kg8-f8 33.Rd3-d1 Rc4-h4 34.Qg5-g2 Nf5-d4 35.h5-h6 g7xh6 36.d5xe6 f7xe6 37.Rd1-c1
= (0.15) Depth: 14 00:00:18 1199kN
31.Rd3-h3 Qd7xd6 32.h5-h6 Rc4xd4 33.Rd1xd4 Qd6xd4
² (0.41) Depth: 14 00:00:37 2424kN
31.Rd3-h3 Qd7xd6 32.h5-h6 Rc4xd4 33.Rd1xd4 Qd6xd4
² (0.42) Depth: 15 00:00:44 2861kN
31.Rd3-h3 Qd7xd6 32.h5-h6 Rc4xd4 33.Rd1xd4 Qd6xd4
² (0.40) Depth: 16 00:00:53 3490kN
31.Rd3-h3 Qd7xd6 32.h5-h6 Rc4xd4 33.Rd1xd4 Qd6xd4
² (0.37) Depth: 17 00:01:12 4821kN
31.Rd3-h3 Qd7xd6 32.h5-h6 Rc4xd4 33.Rd1xd4 Qd6xd4 34.h6xg7
² (0.41) Depth: 18 00:01:54 7535kN
31.Rd3-h3 Qd7xd6 32.h5-h6 Rc4xd4 33.Rd1xd4 Qd6xd4 34.h6xg7 Qd4-d1+
² (0.42) Depth: 19 00:03:28 14031kN
31.Rd3-h3 Qd7xd6 32.h5-h6 Rc4xd4 33.Rd1xd4 Qd6xd4 34.h6xg7 Qd4-d1+
² (0.42) Depth: 20 00:05:27 21664kN

(, 13.05.2007)


New game - Glaurung 2-epsilon/2, Blitz:3'
6k1/p2q1pp1/1p1Pp3/5nQP/2rP4/P2R4/5P2/3R2K1 w - - 0 1

Analysis by Fritz 8:

31.h5-h6 f7-f6 32.Qg5-g6 Nf5xh6 33.Rd3-h3 Nh6-f7 34.Rd1-e1 Nf7xd6
± (1.06) Depth: 7/21 00:00:00 52kN
31.h5-h6 f7-f6 32.Qg5-g6 Nf5xh6 33.Rd3-h3 Kg8-f8 34.Rd1-e1 Nh6-f7 35.Rh3-h7 Nf7xd6
± (1.00) Depth: 8/21 00:00:00 108kN
31.h5-h6 f7-f6 32.Qg5-g6 Nf5xh6 33.Rd3-h3 Kg8-f8 34.Rd1-e1 Nh6-f7 35.Rh3-h7 Nf7xd6
± (1.00) Depth: 9/22 00:00:00 303kN
31.h5-h6 f7-f6 32.Qg5-g6 Nf5xh6 33.Rd3-h3 Kg8-h8 34.Rh3-f3 Qd7xd6 35.Rf3-g3 Qd6-d7
± (0.78) Depth: 10/22 00:00:00 785kN
31.h5-h6 f7-f6 32.Qg5-g6 Nf5xh6 33.Rd3-h3 Kg8-h8 34.Rh3-f3 Qd7xd6 35.Qg6-e8+ Kh8-h7 36.Rf3-g3 g7-g5 37.Rd1-e1 Rc4-c2
± (0.84) Depth: 11/34 00:00:02 2814kN
31.h5-h6 f7-f6 32.Qg5-g6 Nf5xh6 33.Rd3-h3 Nh6-f7 34.Qg6-h7+ Kg8-f8 35.Rh3-g3 Nf7-g5 36.Qh7-h8+ Kf8-f7 37.d4-d5 Qd7xd6 38.d5xe6+
± (0.78) Depth: 12/28 00:00:05 6695kN
31.h5-h6 f7-f6 32.Qg5-g6 Nf5xh6 33.Rd3-h3 Nh6-f5 34.Qg6-h7+ Kg8-f8 35.Qh7-h8+ Kf8-f7 36.Qh8-h5+
± (1.03) Depth: 13/35 00:00:17 20759kN

(, 13.05.2007)

Hi Uri,

Some engines find it quickly:

Sjeng 2.5

00:00:00.0 0,92 3 642 h6
00:00:00.0 0,82 3 1440 h6 Qxd6 hxg7 Nxg7
00:00:00.0 0,82 3 2399 h6 Qxd6 hxg7 Nxg7
00:00:00.1 1,22 4 5466 h6
00:00:00.1 1,39 4 7684 h6 Qxd6 hxg7 Nxg7 Rg3
00:00:00.1 1,00 5 12761 h6 f6 Qg6 Qxd6 hxg7 Nxg7
00:00:00.2 1,40 6 18944 h6
00:00:00.2 1,56 6 25642 h6 f6 Qg6 Nxd6 h7+ Kh8 Rc3
00:00:00.3 1,36 7 47706 h6 f6 Qg6 Nxh6 Rh3 Nf5 Qh7+ Kf7
00:00:00.4 1,43 8 81325 h6 f6 Qg6 Nxh6 Rh3 Nf5 Qh7+ Kf7 Qh5+ Kf8 Qh8+ Kf7
00:00:00.6 1,03 9 145837 h6
00:00:00.8 0,86 9 194453 h6 f6 Qg6 Nxh6 Rh3 Kf8 Qd3 Rc6 Qe4 Qxd6 Re1
00:00:01.1 0,86 9 323212 h6 f6 Qg6 Nxh6 Rh3 Kf8 Qd3 Rc6 Qe4 Qxd6 Re1
00:00:02.3 0,69 10 698766 h6 f6 Qg6 Nxh6 Rh3 Nf5 Kh1 Nxd6 Rg1 Nf5 Qxf6 Qc6+ Kh2 Rxd4
00:00:04.8 0,67 11 1503989 h6 f6 Qg6 Nxh6 Re1 Nf5 d5 e5 Rh3 Nxd6 Rh7 Qg4+ Kh1
00:00:16.0 0,53 12 5210999 h6 f6 Qg6 Nxh6 Rh3 Nf5 Qh7+ Kf8 Qh8+ Kf7 Qh5+ Kg8 d5 Nxd6 Qf3 Kf7 Rh8 e5
00:01:14.3 0,53 13 25315160 h6 f6 Qg6 Nxh6 Rh3 Nf5 d5 e5 Kh2 Nxd6 Rg1 Qf7 Qd3 Kf8 Rh8+ Ke7 Rh7 Rf4 Qe2 Nf5 Rh3

Scorpio 1.91 JA

00:00:03.5 2,08 8 330451 h6 f6 Qg6 Nxd6 h7+ Kh8 Re3 Nf5
00:00:03.5 2,08 8 346094 h6 f6 Qg6 Nxd6 h7+ Kh8 Re3 Nf5
00:00:03.8 2,16 9 523745 h6 f6 Qg6 Nxh6 Rh3 Kh8 a4 Qxd6 Qe8+ Kh7
00:00:04.0 2,16 9 628666 h6 f6 Qg6 Nxh6 Rh3 Kh8 a4 Qxd6 Qe8+ Kh7
00:00:04.4 2,16 10 816187 h6 f6 Qg6 Nxh6 Rh3 Kh8 a4 Qxd6
00:00:05.3 2,16 10 1261643 h6 f6 Qg6 Nxh6 Rh3 Kh8 a4 Qxd6
00:00:07.0 1,93 11 2153133 h6 f6 Qg6 Nxh6 Rh3 Nf5 Rb1 Nxd6 Qh7+ Kf8 Qh8+ Kf7
00:00:08.7 1,93 11 3068697 h6 f6 Qg6 Nxh6 Rh3 Nf5 Rb1 Nxd6 Qh7+ Kf8 Qh8+ Kf7
00:00:10.0 1,91 12 3765602 h6 f6 Qg6 Nxh6 Rh3 Nf5 Re1 Nxd6 Qh7+ Kf7 Rg3 Nf5
00:00:15.1 1,91 12 6352458 h6 f6 Qg6 Nxh6 Rh3 Nf5 Re1 Nxd6 Qh7+ Kf7 Rg3
00:00:18.8 2,04 13 8054771 h6 f6 Qg6 Nxh6 Rh3 Nf5 Qh7+ Kf7 Qh5+ Kg8 d5 exd5 Re1 Re4 Qh7+ Kf7
00:00:23.1 2,04 13 10175142 h6 f6 Qg6 Nxh6 Rh3 Nf5 Qh7+ Kf7 Qh5+ Kg8 d5 exd5 Re1 Re4 Qh7+ Kf7
00:00:28.0 1,71 14 12682400 h6 f6 Qg6 Nxh6 Rh3 Nf5 d5 exd5 Qh7+ Kf8 Qh8+ Kf7 Rxd5 Rc1+ Kh2 Nxd6 Rg3 g5

Pro Deo 1.2

00:00:03.3 1,06 7 358252 h6
00:00:03.3 1,95 7 428692 h6 f6 Qg6 Nxh6 Rh3 Kh8 Rg3 Rc1 Rxc1
00:00:03.4 1,83 8 557173 h6 f6 Qg6 Nxh6 Rg3 Nf5 Rh3 Nxd6 Rh1
00:00:04.1 1,60 9 918506 h6 f6 h7+ Kxh7 Rh3+ Nh6 Qg3 Rc6 f4 Rxd6
00:00:06.4 1,70 10 2616005 h6 f6 Qg6 Nxh6 Rg3 Kh8 d5 exd5 Re1 Rc8
00:00:12.5 1,92 11 7136170 h6 Qxd6 hxg7 Qe7 Qg2 Qf6 d5 Nh4 Qg3 b5 dxe6 Qxg7
00:00:27.1 2,12 12 18169865 h6 Qxd6 hxg7 Qe7 Qg2 Nxg7 Rg3 Qf8 Rh3 Qe8 Qg3 Qf8 Qg5 b5 Qxb5
00:01:01.5 2,13 13 44368382 h6 f6 Qg6 Nxh6 Rh3 Nf5 d5 exd5 Re1 Re4 Rxe4 dxe4 Qg4
00:01:51.7 1,68 14 83373114 h6 f6 Qg6 Nxh6 Rh3 Nf5 d5 exd5 Qh7+ Kf8 Qh8+ Kf7 Rxd5 Nxd6 Rg3 Rc1+ Kh2 b5

Some others didn't find it:

Strelka:

18 05:18 285.706.168 901.281 +0,88 d1c1 f7f6 g5d2 b6b5 c1c4 b5c4 d3c3 f5d6 d2f4 g8h7 f4g4 d7f7 c3c1 f6f5 g4g5 d6e4 g5g6 f7g6 h5g6 h7h6 c1c4 h6g6
Best move: Rd1-c1, Value: +0,88, Depth: 18, Time: 05:18,092, 285.706.168 Nodes, 901.281 N/sec.

SlowChess Blitz WV2.1 (190 MB hash)
FEN: 6k1/p2q1pp1/1p1Pp3/5nQP/2rP4/P2R4/5P2/3R2K1 w - -

[14] 0.58 10:12.3 Re1 Qxd6 d5 Rd4 dxe6 Rxd3 exf7+ Kf8 Qxf5 Rd1 Rxd1 Qxd1+ Kg2 Qb3 Qc8+ Kxf7 Qb7+ Ke6 Qxa7

Nobody in the Fruit family found it either. Finally Chess Tiger takes on h6 after sometime but followed by Rg3 instead of Rh3:

00:04:33.7 0,38 19 176073639 Rc1 f6 Qd2 Rxc1+ Qxc1 Nxd6 h6 Nf5 hxg7 Qxg7+ Kf1 Qd7 d5 exd5 Qd1 Qh7 Qg4+ Kf7 Qg2 Ne7 Rg3 d4
00:06:22.5 0,40 19 247475324 h6 f6 Qg6 Nxh6 Rg3 Nf5 Rg4 Kf8 d5 Rxg4+ Qxg4 Qxd6 dxe6 Qxe6 Rd8+ Ke7 Ra8 a5 Ra7+ Kf8 Kf1 g5 Rc7
00:10:18.6 0,58 20 405143781 h6 f6 Qg6 Nxh6 Rg3 Nf5 Rg4 Qa4 Rd3 Qc6 d5 Rxg4+ Qxg4 Qxd6 Qe4 Kf7 dxe6+ Qxe6 Qb7+ Kg6 Kf1 Qc4

I checked the game until the end and it seems like h6 is a real good move. Variations are deep but white seems to win by force.

[Uri Blass]

h6 looks like a human move as well.

One move a computer does not make

There are different humans and different computers.

There are chess programs that like h6 when there are humans who do not like it.

You cannot get conclusions about other people based on the move that you like
and you cannot get conclusions about other computers based on the move that rybka or toga like.

Uri

[nuff]

The article states

In this position there was a decision to be made on 2 fundamental ways to proceed: 31. Qf4 or Rc1.
Rc1 on the one hand is what I would have chosen in an OTB game ('human move'), or the difficult to calculate 31. h6, the 'computer move“.

You cannot rely on Rybka alone to form the assessment of a position or judge what is or is not a computer move. Don't forget that there is the statement in the article

I analysed this position for several weeks, including my CC leave. Obviously White had to play towards the kingside, but how to continue?. Black is fully developed and has no weak points that I could provoke....

Both a human and a computer should analyse those lines with several weeks to move at CC time controls.

[Eelco de Groot]

Toga Checkov has difficulty in finding the win in the variations after 31.h6 and would prefer to play 31.Qf4


[D]6k1/p2q1pp1/1p1Pp3/5nQP/2rP4/P2R4/5P2/3R2K1 w - -

Engine: Toga 1.3 "Checkov" 2 (256 MB)
gemaakt door Thomas Gaksch and Fabien Letouzey

20 49:37 +0.68 1.Df4 b5 2.Dg5 Dxd6 3.d5 Th4 4.dxe6 Dxe6
5.Td8+ Kh7 6.T8d5 Pe7 7.Dxh4 Pxd5
8.Td4 Pc3 9.Kg2 Dc6+ 10.f3 De6
11.Df2 Pd5 12.Te4 Dd7 (2.218.607.684) 752

20 62:59 +0.43 1.Kf1 Dxd6 2.d5 f6 3.Dg6 Th4 4.Dg2 Txh5
5.Df3 Tg5 6.dxe6 Dxe6 7.Da8+ Kh7
8.Th3+ Kg6 9.Tdd3 De5 10.Dd8 Tg4
11.Dd7 De7 12.Dc8 Th4 (2.843.146.062) 752

After 1...h6 Toga sees only a small advantage for White (two best moves)

6k1/p2q1pp1/1p1Pp2P/5nQ1/2rP4/P2R4/5P2/3R2K1 b - -

Engine: Toga 1.3 "Checkov" 2 (256 MB)
gemaakt door Thomas Gaksch and Fabien Letouzey

20 12:57 -0.52 1...f6 2.Dg6 Pxh6 3.Tg3 Pf5 4.Tg4 Pxd6
5.Dxf6 Pf5 6.De5 Tc5 7.Db8+ Tc8
8.Df4 Tc2 9.Te1 Tc4 10.Db8+ Kh7
11.Kf1 Txd4 12.Dh2+ Kg8 (575.146.403) 739

20 17:21 -1.27 1...Dxd6 2.hxg7 De7 3.Dh5 Dh4 4.Dh8+ Dxh8
5.gxh8D+ Kxh8 6.d5 exd5 7.Txd5 Tg4+
8.Kf1 Tf4 9.T1d3 Kg7 10.Tc3 Kg6
11.Td7 Ta4 12.Tdc7 f6 13.Tb7 Kg5
14.Td3 Td4 (770.450.914) 739

___________________________________________________________

21 24:38 -0.46 1...f6 2.Dg6 Pxh6 3.Tg3 Pf5 4.Tg4 Pxd6
5.Dxf6 Pf5 6.De5 Tc5 7.Db8+ Tc8
8.Df4 Tc4 9.Td3 b5 10.De5 Tc1+
11.Kg2 Tc2 12.Th3 Dd5+ 13.Dxd5 exd5 (1.095.131.928) 749

21 36:07 -1.27 1...Dxd6 2.hxg7 De7 3.Dh5 Dh4 4.Dh8+ Dxh8
5.gxh8D+ Kxh8 6.d5 exd5 7.Txd5 Tg4+
8.Kf1 Tf4 9.T1d3 Kg7 10.Tc3 Kg6
11.Td7 Ta4 12.Tdc7 f6 13.Tb7 Kg5
14.Td3 Td4 (1.624.033.759) 749

After 1...f6 2.Qg6 Nxh6


6k1/p2q2p1/1p1PppQn/8/2rP4/P2R4/5P2/3R2K1 w - -

Engine: Toga 1.3 "Checkov" 2 (256 MB)
gemaakt door Thomas Gaksch and Fabien Letouzey

21 70:51 +0.53 3.Tg3 Pf5 4.Tg4 Pxd6 5.Dxf6 Pf5
6.De5 Tc5 7.Db8+ Tc8 8.Df4 Tc4 9.De4 Kf8
10.Kf1 Dd5 11.Dxd5 exd5 12.Tg5 g6
13.Txg6 Pxd4 14.f4 Kf7 (3.151.348.077) 747

21 117:38 +0.28 3.Th3 Pf7 4.d5 Da4 5.Dh7+ Kf8 6.Tdd3 exd5
7.Df5 Pxd6 8.Dxd5 Tc1+ 9.Kh2 Df4+
10.Kg2 Dg4+ 11.Thg3 De4+ 12.Dxe4 Pxe4
13.Tge3 f5 14.Td7 a6 15.Tf3 g6
16.Th3 (5.279.103.678) 747

Going deeper, Toga still sees nothing although at one point it sees the whole variation starting with 4.Qh7 and 7.f4 ;
34.Qh7+ Kf8 35.Rg3 Ng5 36.Qd3 b5 37.f4 Nf7 38.Qh7 g5 39.fxg5 Qxd6 40.Rg4 Qxa3
but only evaluates it at +0.43...

After 1...f6 2.Qg6 Nxh6 3.Rh3 Nf7


[D]6k1/p2q1np1/1p1PppQ1/8/2rP4/P6R/5P2/3R2K1 w - -

Engine: Toga 1.3 "Checkov" 2 (256 MB)
gemaakt door Thomas Gaksch and Fabien Letouzey

17 3:10 +0.43 4.Dh7+ Kf8 5.Tg3 Pg5 6.Dd3 b5 7.f4 Pf7 8.Dh7 g5 9.fxg5 Dxd6 10.Tg4 Dxa3 11.gxf6 De3+ 12.Kh2 Df2+ 13.Kh1 Dxf6 14.Tg8+ Ke7 15.Dh3 Pd6 (140.869.525) 741
17 3:01 +0.35 4.d5 Da4 5.Dh7+ Kf8 6.Tdd3 exd5 7.Thg3 Tc1+ 8.Kg2 g5 9.Df5 De4+ 10.Dxe4 dxe4 11.Td2 Tc6 12.d7 Ke7 13.Th3 Pd6 14.Th7+ Kd8 15.Td1 b5 16.Tdh1 (134.514.647) 741
_____________________________________________________________
18 8:29 +0.39 4.d5 Da4 5.Dh7+ Kf8 6.Tdd3 exd5 7.Thg3 Tc1+ 8.Kg2 g5 9.Df5 De4+ 10.Dxe4 dxe4 11.Td2 Tc6 12.d7 Ke7 13.Th3 Pd6 14.Th7+ Kd8 15.Td1 b5 16.Td5 g4 (374.411.823) 731
18 9:08 +0.26 4.Dh7+ Kf8 5.Tg3 Pg5 6.Dd3 b5 7.a4 a6 8.f4 Pf7 9.d5 exd5 10.Dxd5 Txf4 11.Da8+ Pd8 12.a5 Tg4 13.Kh2 Th4+ 14.Kg2 f5 15.Dxa6 f4 16.Tf1 Kg8 (400.897.499) 731
_____________________________________________________________

19 18:45 +0.28 4.d5 Da4 5.Dh7+ Kf8 6.Tdd3 exd5
7.Df5 Pxd6 8.Dxd5 Tc1+ 9.Kh2 Df4+
10.Kg2 Dg4+ 11.Thg3 De4+ 12.Dxe4 Pxe4
13.Tge3 f5 14.Td7 a6 15.Tf3 g6
16.Th3 Ke8 17.Thh7 (701.484.125) 635

19 33:30 +0.25 4.Dh7+ Kf8 5.Tg3 Pg5 6.Dd3 b5 7.a4 Dxd6
8.axb5 Dd5 9.Te3 Ta4 10.Db3 Tc4
11.f4 Pf7 12.Da3+ Pd6 13.Th3 Tc7
14.Th7 Kf7 (1.276.966.672) 635

Finally after 1...f6 2.Qg6 Nxh6 3.Rh3 Nf7 4.Qh7+ Kf8 5.Rg3 Ng5 6.Qd3 b5
Toga sees the true consequences of what Fritz Baumbach had planned in his notebook probably several weeks before:

[D]5k2/p2q2p1/3Ppp2/1p4n1/2rP4/P2Q2R1/5P2/3R2K1 w - -

19 5:00 +1.16 7.f4 Pf7 8.Dh7 g5 9.fxg5 Dxd6 10.Tg4 Dxa3
11.g6 De3+ 12.Kh1 Dh6+ 13.Th4 Dxh7
14.Txh7 Pd6 15.Txa7 Ta4 16.Th7 Pf5
17.Tf7+ Kg8 18.Txf6 Pxd4 (208.563.880) 687

19 7:35 +0.23 7.a4 Dxd6 8.axb5 Dd5 9.Te3 Ta4
10.Db3 Tc4 11.f4 Pf7 12.Th3 Pd6
13.Th8+ Kf7 14.Dd3 Pxb5 15.Dh7 Pxd4
16.Dg8+ Kg6 17.De8+ Kf5 18.Th5+ g5 (313.195.033) 687

_____________________________________________________________

20 14:34 +1.54 7.f4 Pf7 8.Dh7 g5 9.fxg5 Dxd6 10.Tg4 Dxa3
11.g6 De3+ 12.Kh1 Dh6+ 13.Th4 Dxh7
14.gxh7 Ph8 15.Tg1 Ke7 16.Tg7+ Kd6
17.Txa7 b4 18.Ta8 Tc1+ 19.Kg2 Tc2+
20.Kf3 (572.845.220) 637

20 27:35 +0.04 7.a4 Dxd6 8.axb5 Dd5 9.Te3 Ta4
10.Db3 Tc4 11.f4 Pf7 12.Th3 Pd6
13.Dd3 Kf7 14.Th8 Pxb5 15.Dh7 Txd4
16.Dg8+ Kg6 17.Tf1 (1.055.495.915) 637



Baumbach,Dr. F - Valent,P
XIII CC Olympiad ICCF, 29.04.2007
[Baumbach, F]

1.d4 Nf6 2.c4 e6 3.Nf3 b6 4.Nc3 Bb7 5.a3 d5 6.cxd5 Nxd5 7.Qc2 Nxc3 8.bxc3 Be7 9.e4 0-0 10.Bd3 c5 11.0-0 Qc8 12.Qe2 Ba6 13.Rd1 Bxd3 14.Rxd3 Nd7 15.e5 cxd4
[The first game with this position was Radjabow-Anand, Linares 2003 15...Qc6 16.Bg5 Rfe8 17.Bxe7 Rxe7 18.Ng5 cxd4 19.cxd4 f6 20.exf6 Nxf6 21.Re1 h6 22.Nf3 Rc8 23.Ne5 Qc2 24.Qf3 Nd5 25.Qg3 ½-½ Radjabov,T (2624)-Anand,V (2753)/Linares 2003]

16.cxd4 Re8 17.Bg5 Qa6
With this move black goes his own way. In earlier games the position of the queen wasn`t fixed this early. Usually Black continued with 17. ... Nf8 or 17. ... Bf8. 17. ... Qa6 looks logical, it prepares the occupation of the c-file with the rooks whilst the pawn on a3 is in range. If Black succeeds in changing a rook in the c-file, his position is slightly better. In spite of that 17. ... Qa6 is not good, because the queen is too far away from the battle. After the game, my opponent also regarded it as a mistake.

18.Bxe7 Rxe7 19.Rad1 Nf8
I analysed this position for several weeks, including my CC leave. Obviously White had to play towards the kingside, but how to continue?. Black is fully developed and has no weak points that I could provoke. There is the possibility to advance the h-pawn. In this sense I had already noted 20. h4 on my answering card, but after some days I didn`t like this variation -
20.h4 Rd8 (20...Rc8 21.Ng5 Rec7 22.Ne4) 21.Qe3 Red7 22.h5 h6! (if the h-pawn is allowed to go one step more, black is really in danger). After that I checked
20. Qe3, 20.Qe3 Rc8 21.Ng5 Rec7 22.Ne4 Rc1 and black has achieved the goal, to change one of the rooks.
My third choice but in terms of strength this is my strongest move. 20.Ng5 ]

20.Ng5 Rc7 21.Qf3 Rd8 22.h4 h6 23.Ne4 Ng6 24.h5 Ne7 25.g4!
After provocation of the attacking mark, white started a textbook attack.

25...Qb7 26.g5 hxg5
Here it was extremely difficult to decide between 2 good-looking moves, d5 and Qg4. My fingers tingled when considering the move 27. d5, because the d5 pawn can only be captured with the knight.
27.d5 Nxd5 (27...Rxd5 28.Nxg5; 27...exd5 28.Nd6) 28.Nxg5 Qc6 29.Qe4 Qc4 30.Qh7+ Kf8 31.Ne4 Ke7 32.Rf3 Nf4 33.Re1 (33.Rxd8 Qf1+! and mate) 33...Ne2+ 34.Kg2 Rf8 35.Re3 Rcc8 36.Nd6 and white wins the exchange.

But there would have been some counter chances for my opponent, and so I chose the safer continuation.

27.Qg4
Now Black has a difficult choice, apart from the move played there were the following alternative.
27...Rcd7 28.h6 gxh6 29.Nf6+ Kg7 30.f4 Ng6 31.fxg5 h5 32.Nxh5+ Kf8 33.Nf4;
27...Rf8 28.h6 gxh6 29.Nf6+ Kg7 30.f4 Rh8 31.fxg5 hxg5 32.Rh3;
27...Qa8 28.Nxg5 Qc8 29.h6 gxh6 30.Ne4+ Kh8 31.Rh3 Nf5 32.Qf4 Rg8+ 33.Kh2]

27...Rc4
The best answer, sacrificing an exchange black achieved active positions for its pieces. It was really difficult to foresee that White has in some 10 moves the better end.

28.Nd6 Rxd6 29.exd6 Nf5 30.Qxg5 Qd7
In this position there was a decision to be made on 2 fundamental ways to proceed: 31. Qf4 or Rc1.
Rc1 on the one hand is what I would have chosen in an OTB game ('human move'), or the difficult to calculate 31. h6, the 'computer move'.

31.h6 f6 32.Qg6 Nxh6 33.Rh3 Nf7
With great pleasure I took off this answering card from my letter box, because the next 10 moves were already written down in my analysis book. The alternative was [33...Nf5.]
After that was planned 34. d5 e5 35. Qh7+ Kf7 36.Kh2 with the practical unavoidable threat 37. Rg1, for example, 36. ... Rf4 37.Rc1 Nxd6 38.Rhc3 Ne8 39.Qh5+ Ke7 40.Rc8], or 36...e4 37.Qh5+ Kf8 38.Rg1 Nxd6 39.Rhg3, all leading to a win.
34.Qh7+ Kf8 35.Rg3 Ng5 36.Qd3 b5 37.f4 Nf7 38.Qh7 g5 39.fxg5 Qxd6 40.Rg4 Qxa3 41.g6 Qe3+ 42.Kh1 Qf4
42...Qf3+ 43.Rg2 Qxd1+ 44.Kh2;
42...Qh6+ 43.Rh4]

43.Qxf7#

Great game from ex world-champion Baumbach and apparently difficult to analyze for some programs

Eelco

[nuff]

Is that former CC champ Baumbach called Fritz or is his nickname Fritz because he used Fritz? http://en.wikipedia.org/wiki/Friedrich_Baumbach

[Eelco de Groot]

Is that former CC champ Baumbach called Fritz or is his nickname Fritz because he used Fritz? http://en.wikipedia.org/wiki/Friedrich_Baumbach

Hello John, yes they are one and the same. At the time that he was world champion, between 1983 and 1989 I think Fritz was not yet that useful for correspondence chess and apparently Baumbach does not need a computer anyway! Not even for his e-mail I think, everything is done by postcards! Fritz is short for Friedrich here, I'm not sure whether Fritz is actually named after Frederic Friedel?


Fritz Baumbach

I can recommend Baumbach's book: Fernschach: 52-54 - stop, Tips und Tricks vom Weltmeister (unter Mitarbeit von Heinrich Burger). Sportverlag Berlin 1991. ISBN 3-328-00398-3
but I'm not sure it was translated in English, I could not find an English title



Eelco

[Terry McCracken]

h6 looks like a human move as well.

One move a computer does not make

There are different humans and different computers.

There are chess programs that like h6 when there are humans who do not like it.

You cannot get conclusions about other people based on the move that you like
and you cannot get conclusions about other computers based on the move that rybka or toga like.

Uri

Isn't that what I said?

Terry

[smirobth]

Is that former CC champ Baumbach called Fritz or is his nickname Fritz because he used Fritz? http://en.wikipedia.org/wiki/Friedrich_Baumbach

Mr. Baumbach goes by the first name of Fritz in all correspondence I have had with him.