Author: Mike Byrne
Date: 11:21:05 03/13/04
This mate was the pretty finale of a game won by USSR Grandmaster Bronstein
against a 1963 chess computer called EVM "M-20.
This game may be the earliest recorded between a Grandmaster and a computer - if
you know of a earlier , please post.
[Event "Training"]
[Site "Training"]
[Date "1963.??.??"]
[Round "?"]
[White "Bronstein"]
[Black "EVM M20"]
[Result "1-0"]
[ECO "C34"]
[PlyCount "45"]
[EventDate "1963.??.??"]
[Source "www.ChessliB.no"]
[SourceDate "2003.02.24"]
1. e4 e5 2. f4 exf4 3. Nf3 Nf6 4. e5 Ng4 5. d4 g5 6. Nc3 Ne3 7. Qe2 Nxf1 8. Ne4
Ne3 9. Nf6+ Ke7 10. Bd2 Nxc2+ 11. Kf2 Nxa1 12. Nd5+ Ke6 13. Qc4 b5 {
[d]rnbq1b1r/p1pp1p1p/4k3/1p1NP1p1/2QP1p2/5N2/PP1B1KPP/n6R/ w}
Bronstein announced the mate in 10 moves at this point during the game.
}
14. Nxg5+ Qxg5 15. Nxf4+ Ke7 16. Nd5+ Ke6 17. Nxc7+ Ke7 18. Nd5+ Ke8 19. Qxc8+
Qd8 20. Nc7+ Ke7 21. Bb4+ d6 22. Bxd6+ Qxd6 23. Qe8# 1-0
Crafty v19.11 SE [Kasparov] (2 cpus)
SE code enabled
White(1): rnbq1b1r/p1pp1p1p/4k3/1p1NP1p1/2QP1p2/5N2/PP1B1KPP/n6R/ w
White(1): go
clearing hash tables
time surplus 0.00 time limit 16666:39 (16666:39)
time surplus 0.00 time limit 16666:39 (16666:39)
depth time score variation (1)
1 0.00 -5.40 1. Nxc7+ Ke7 2. Nxb5
1-> 0.01 -5.40 1. Nxc7+ Ke7 2. Nxb5
2 0.01 ++ 1. Nxc7+!!
2 0.01 -1.85 1. Nxc7+ Ke7 2. Bb4+ d6 3. Bxd6+ Kd7
4. Qxf7+
2-> 0.03 -1.85 1. Nxc7+ Ke7 2. Bb4+ d6 3. Bxd6+ Kd7
4. Qxf7+
3 0.03 ++ 1. Nxc7+!!
3 0.05 -0.20 1. Nxc7+ Kf5 2. Qxf7+ Ke4 3. Re1+ Kd3
4. Nxa8
3-> 0.06 -0.20 1. Nxc7+ Kf5 2. Qxf7+ Ke4 3. Re1+ Kd3
4. Nxa8
4 0.06 ++ 1. Nxc7+!!
4 0.08 0.81 1. Nxc7+ Ke7 2. Bb4+ d6 3. Bxd6+ Kd7
4. Qxf7+ Kc6 5. Qd5+ Kb6 6. Nxa8+
4-> 0.09 0.81 1. Nxc7+ Ke7 2. Bb4+ d6 3. Bxd6+ Kd7
4. Qxf7+ Kc6 5. Qd5+ Kb6 6. Nxa8+
5 0.09 ++ 1. Nxc7+!!
5 0.12 2.50 1. Nxc7+ Ke7 2. Bb4+ d6 3. Bxd6+ Qxd6
4. exd6+ Kd8 5. Nxb5 Be6
5 0.12 3.20 1. Nxg5+ Qxg5 2. Nxf4+ Ke7 3. Nd5+
Ke8 4. Nxc7+ Kd8 5. Bxg5+ f6 6. Bxf6+
5-> 0.15 3.20 1. Nxg5+ Qxg5 2. Nxf4+ Ke7 3. Nd5+
Ke8 4. Nxc7+ Kd8 5. Bxg5+ f6 6. Bxf6+
(s=3)
6 0.15 ++ 1. Nxg5+!!
6 0.17 5.08 1. Nxg5+ Qxg5 2. Nxf4+ Ke7 3. Nd5+
Ke8 4. Nxc7+ Kd8 5. Bxg5+ Be7 6. Bxe7+
Kxe7 7. Qb4+ d6 8. Nxa8 (s=2)
6-> 0.30 5.08 1. Nxg5+ Qxg5 2. Nxf4+ Ke7 3. Nd5+
Ke8 4. Nxc7+ Kd8 5. Bxg5+ Be7 6. Bxe7+
Kxe7 7. Qb4+ d6 8. Nxa8 (s=5)
7 0.30 ++ 1. Nxg5+!!
7 0.34 8.40 1. Nxg5+ Qxg5 2. Nxc7+ Ke7 3. Nd5+
Ke6 4. Nxf4+ Ke7 5. Nd5+ Ke8 6. Qxc8+
Qd8 7. Nc7+ Ke7 8. Bg5+ f6 9. exf6+
Kf7 10. Qxd8 (s=4)
7-> 0.70 8.40 1. Nxg5+ Qxg5 2. Nxc7+ Ke7 3. Nd5+
Ke6 4. Nxf4+ Ke7 5. Nd5+ Ke8 6. Qxc8+
Qd8 7. Nc7+ Ke7 8. Bg5+ f6 9. exf6+
Kf7 10. Qxd8 (s=4)
8 0.72 ++ 1. Nxg5+!!
8 0.81 Mat10 1. Nxg5+ Qxg5 2. Nxc7+ Ke7 3. Nd5+
Ke6 4. Nxf4+ Ke7 5. Nd5+ Ke8 6. Qxc8+
Qd8 7. Nc7+ Ke7 8. Bb4+ d6 9. Bxd6+
Qxd6 10. Qe8# (s=3)
8-> 2.05 Mat10 1. Nxg5+ Qxg5 2. Nxc7+ Ke7 3. Nd5+
Ke6 4. Nxf4+ Ke7 5. Nd5+ Ke8 6. Qxc8+
Qd8 7. Nc7+ Ke7 8. Bb4+ d6 9. Bxd6+
Qxd6 10. Qe8# (s=3)
time=2.05 cpu=174% mat=-10 n=2611786 fh=98% nps=1.27M
ext-> chk=163679 cap=3383 pp=6053 1rep=11762 mate=199
predicted=0 nodes=2611786 evals=9330 50move=0
endgame tablebase-> probes=0 hits=0
SMP-> split=251 stop=12 data=3/128 cpu=3.58 elap=2.05
mate in 10 moves.
White(1): Nxg5+
time used: 2.05
Pocket Chess Genius on Dell 590 Mhz(oc) 6 seconds to see mate.
Pocket Fritz 2 "" "" 37 seconds to see mate
Pocket Grandmaster Ruffian 1.0.4 26 seconds to see mate
Psion 2.5.1, 1.7 Ghz. - did not see mate after 10 minutes
PC Chess Genius 1, 1.7 Ghz P4, - 26 seconds to see mate
PC Chess Genius 3, 1.7 Ghz P4, - 31 seconds
Chess Genius 5, 1.7 Ghz P4 - 26 seconds to see mate
Chess Genius Classic 7.1, 1.7 Ghz P4 - 23 seconds
some old pc results
http://membres.lycos.fr/albillo/ajedre2a.htm
Fritz 8 took 36 seconds on machine and came up with a mate-in-11.
Bronstein - EVM M20
rnbq1b1r/p1pp1p1p/4k3/1p1NP1p1/2QP1p2/5N2/PP1B1KPP/n6R w - b6 0 1
Analysis by Fritz 8:
14.Nxg5+ Qxg5 15.Nxf4+ Ke7 16.Nd5+ Ke8 17.Nxc7+ Kd8 18.Bxg5+ Be7 19.Bxe7+ Kxe7
20.Qc5+ Kd8 21.Nxa8 Na6 22.Qd6 Rg8 23.Rxa1 Bb7
+- (8.31) Depth: 7/38 00:00:00 188kN
14.Nxg5+ Qxg5 15.Nxf4+ Ke7 16.Nd5+ Ke8 17.Nxc7+ Kd8 18.Bxg5+ Be7 19.Bxe7+ Kxe7
20.Qc5+ Kd8 21.Nxa8 Na6 22.Qd6 Rg8 23.Rxa1 Bb7
+- (8.31) Depth: 8/20 00:00:00 291kN
14.Nxg5+ Qxg5 15.Nxf4+ Ke7 16.Nd5+ Ke8 17.Nxc7+ Kd8 18.Bxg5+ Be7 19.Bxe7+ Kxe7
20.Qc5+ Kd8 21.Nxa8 Na6 22.Qd6 Rg8 23.Rxa1 Bb7
+- (8.31) Depth: 9/29 00:00:01 622kN
14.Nxg5+ Qxg5 15.Nxf4+ Ke7 16.Nd5+ Ke8 17.Nxc7+ Kd8 18.Bxg5+ Be7 19.Bxe7+ Kxe7
20.Qc5+ Kd8 21.Nxa8 Na6 22.Qd6 Rg8 23.Rxa1 Bb7
+- (8.31) Depth: 10/33 00:00:03 1414kN
14.Nxg5+!
+- (8.63) Depth: 11/34 00:00:08 4467kN
14.Nxg5+!
+- (8.91) Depth: 11/34 00:00:08 4470kN
14.Nxg5+!
+- (9.53) Depth: 11/34 00:00:09 4477kN
14.Nxg5+ Kf5 15.Qd3+
+- (#11) Depth: 11/42 00:00:36 20358kN
14.Nxg5+ Kf5 15.Qd3+
+- (#11) Depth: 11/42 00:00:45 25149kN
(Byrne, Secane, PA USA 13.03.2004)
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Last modified: Thu, 15 Apr 21 08:11:13 -0700
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