Author: Heiner Marxen
Date: 10:56:54 07/18/01
Go up one level in this thread
On July 18, 2001 at 13:32:46, Christoph Fieberg wrote:
>On July 18, 2001 at 13:02:03, José de Jesús García Ruvalcaba wrote:
>
>>On July 18, 2001 at 12:50:22, Vincent Lejeune wrote:
>>
>>>[Event "ICS Unrated standard match"]
>>>[Site "chessclub.com"]
>>>[Date "2001.07.18"]
>>>[Round "-"]
>>>[White "*DeepFritz(C)"]
>>>[Black "*Huebner(GER)"]
>>>[Result "1/2-1/2"]
>>>[WhiteElo "0"]
>>>[BlackElo "2612"]
>>>[TimeControl "7200"]
>>>
>>>1. e4 e6 2. d4 d5 3. exd5 exd5 4. Nf3 Nf6 5. c4 Bb4+ 6. Nc3 O-O 7. Be2 dxc4
>>>8. Bxc4 Bg4 9. O-O Nc6 10. Be3 Qd7 11. a3 Ba5 12. Rc1 Rad8 13. Na4 Bb6 14.
>>>Nxb6 axb6 15. b4 Qd6 16. b5 Na5 17. Be2 Nd5 18. Qd3 Rfe8 19. Ng5 Bxe2 20.
>>>Qxh7+ Kf8 21. Rfe1 Nxe3 22. Rxe2 Qh6 23. fxe3 Qxg5 24. Rxc7 Qh6 25. Qxh6
>>>gxh6 26. Kf2 Rc8 27. Rec2 Rxc7 28. Rxc7 Re7 29. Rc8+ Re8 30. Rc7 f5 31. Kf3
>>>Re7 32. Rc8+ Kf7 33. Kf4 Ke6 34. Rf8 Rf7 35. d5+ Ke7 36. Rxf7+ Kxf7 37.
>>>Kxf5 Nc4 38. e4 Nxa3 39. g4 Nxb5 40. e5 Nc7 41. d6 Ne6 42. h4 b5 43. g5
>>>Ng7+ 44. Ke4 hxg5 45. hxg5 b4 46. Kd3 Kg6 47. Kc4 Kxg5 48. Kxb4 Kf5 49. Kc5
>>>Kxe5 50. Kb6
>>>1/2-1/2
>>>
>>>
>>>
>>>40...Nc7 draw BUT 40...Nc3 win !
>>
>>Ok, let's see the position,
>>[D] 8/1p3k2/1p5p/1n1PPK2/6P1/8/7P/8 b - - 0 40
>>This position is way above my technical abilities to judge, I would need several
>>hours of home analysis to reach any conclusion ):
>>José.
>
>
>Analysis by Chess Tiger 14.0:
>(Depth 16, after 35 minutes)
>
>1. -+ (-2.64): 40...Sc3 41.d6 b5 42.h4 b4 43.g5 b3 44.g6+ Kg7 45.d7 b2 46.Ke6
>b1D 47.d8D Dxg6+ 48.Df6+ Dxf6+ 49.exf6+ Kf8 50.f7
>2. -+ (-1.46): 40...Sc7 41.e6+ Ke7 42.Ke5 Se8 43.h4 b5 44.g5 h5 45.g6 b4 46.Kd4
>b5 47.Kd3 Kf6 48.Kd4 Kxg6
>3. -+ (-1.42): 40...Sd4+ 41.Ke4 Sb3 42.e6+ Ke7 43.h4 b5 44.g5 hxg5 45.h5 Sc5+
>46.Ke5 b4 47.h6 b3 48.h7 Sd3+ 49.Ke4 b2 50.h8D
>4. µ (-1.31): 40...Sa3 41.e6+ Kf8 42.Ke5 b5 43.Kd6 Ke8 44.Kc5 Ke7 45.h4 b6+
>46.Kd4 b4 47.g5 Sc2+ 48.Kd3 b3 49.Kc3 hxg5 50.hxg5
>5. µ (-0.80): 40...Sa7 41.Ke4 b5 42.Kd4 Sc6+ 43.dxc6 bxc6 44.h4 Ke6 45.h5 b4
>46.g5 hxg5 47.h6 b3 48.h7 b2 49.Kc5 b1D
>
>Christoph
Crafty likes Nc3 already after 9 seconds better than Nc7, and sticks to it:
Crafty v17.7 (1 cpus)
White(1): ponder off
pondering disabled.
White(1): hash 192M
hash table memory = 192M bytes.
White(1): setboard 8/1p3k2/1p5p/1n1PPK2/6P1/8/7P/8 b - - 0 40
+---+---+---+---+---+---+---+---+
8 | | | | | | | | |
+---+---+---+---+---+---+---+---+
7 | | *P| | | | *K| | |
+---+---+---+---+---+---+---+---+
6 | | *P| | | | | | *P|
+---+---+---+---+---+---+---+---+
5 | | *N| | P | P | K | | |
+---+---+---+---+---+---+---+---+
4 | | | | | | | P | |
+---+---+---+---+---+---+---+---+
3 | | | | | | | | |
+---+---+---+---+---+---+---+---+
2 | | | | | | | | P |
+---+---+---+---+---+---+---+---+
1 | | | | | | | | |
+---+---+---+---+---+---+---+---+
a b c d e f g h
Black(1): egtb
EGTB access enabled
using tbpath=/home/heiner/ca/TB34
4 piece tablebase files found
1430kb of RAM used for TB indices and decompression tables
Black(1): st 900
search time set to 900.00.
Black(1): go
end-game phase
clearing hash tables
time surplus 0.00 time limit 15:00 (15:00)
nss depth time score variation (1)
8 1.06 1.97 1. ... Nd4+ 2. Ke4 Ne2 3. Kf5 b5 4.
d6 Nd4+ <HT>
8-> 1.24 1.97 1. ... Nd4+ 2. Ke4 Ne2 3. Kf5 b5 4.
d6 Nd4+ <HT>
9 1.53 1.96 1. ... Nd4+ 2. Ke4 Ne2 3. h4 Nc3+ 4.
Kd4 Nb5+ 5. Kc4 Na3+ 6. Kb3 Nb1 7.
e6+ Ke7 8. Kc4
9-> 1.95 1.96 1. ... Nd4+ 2. Ke4 Ne2 3. h4 Nc3+ 4.
Kd4 Nb5+ 5. Kc4 Na3+ 6. Kb3 Nb1 7.
e6+ Ke7 8. Kc4
10 2.74 1.90 1. ... Nd4+ 2. Ke4 Ne2 3. h4 Ng3+ 4.
Kf4 b5 5. g5 h5 6. d6 Ke6 7. g6
10 3.60 ++ 1. ... Nc7!!
10 4.21 2.35 1. ... Nc7 2. Ke4 b5 3. d6 Ne6 4. Ke3
Ke8 5. Ke4 Kd7 6. Kd5
(3) 10-> 4.59 2.35 1. ... Nc7 2. Ke4 b5 3. d6 Ne6 4. Ke3
Ke8 5. Ke4 Kd7 6. Kd5
11 5.45 -- 1. ... Nc7
(2) 11 5.72 1.93 1. ... Nc7 2. e6+ Ke7 3. Ke5 Nb5 4.
h4 Nd6 5. g5 h5 6. g6 Nc4+ 7. Kf5 b5
11 8.53 ++ 1. ... Nc3!!
11 8.79 2.61 1. ... Nc3 2. d6 b5 3. e6+ Ke8 4. Ke5
b4 5. d7+ Kd8 6. Kd4 Nb5+ 7. Kc4 Nc7
8. Kxb4 Nxe6
(4) 11-> 9.19 2.61 1. ... Nc3 2. d6 b5 3. e6+ Ke8 4. Ke5
b4 5. d7+ Kd8 6. Kd4 Nb5+ 7. Kc4 Nc7
8. Kxb4 Nxe6
(3) 12 9.84 2.61 1. ... Nc3 2. d6 b5 3. e6+ Ke8 4. Ke5
b4 5. d7+ Kd8 6. Kd4 Nb5+ 7. Kc4 Nc7
8. Kxb4 Nxe6
(4) 12-> 16.17 2.61 1. ... Nc3 2. d6 b5 3. e6+ Ke8 4. Ke5
b4 5. d7+ Kd8 6. Kd4 Nb5+ 7. Kc4 Nc7
8. Kxb4 Nxe6
13 16.99 ++ 1. ... Nc3!!
(3) 13 22.47 3.97 1. ... Nc3 2. d6 b5 3. h4 b4 4. g5
b3 5. g6+ Kg7 6. d7 b2 7. d8=Q b1=Q+
8. Ke6 Qb3+ 9. Ke7 Qb4+ 10. Ke6 Kxg6
(2) 13-> 33.04 3.97 1. ... Nc3 2. d6 b5 3. h4 b4 4. g5
b3 5. g6+ Kg7 6. d7 b2 7. d8=Q b1=Q+
8. Ke6 Qb3+ 9. Ke7 Qb4+ 10. Ke6 Kxg6
14 36.85 4.15 1. ... Nc3 2. d6 b5 3. h4 b4 4. g5
b3 5. g6+ Kg7 6. d7 b2 7. d8=Q b1=Q+
8. Ke6 Qxg6+ 9. Qf6+ Qxf6+ 10. exf6+
Kf8 11. h5 b5 12. Ke5
(4) 14-> 58.81 4.15 1. ... Nc3 2. d6 b5 3. h4 b4 4. g5
b3 5. g6+ Kg7 6. d7 b2 7. d8=Q b1=Q+
8. Ke6 Qxg6+ 9. Qf6+ Qxf6+ 10. exf6+
Kf8 11. h5 b5 12. Ke5
(3) 15 1:09 4.45 1. ... Nc3 2. d6 b5 3. e6+ Ke8 4. d7+
Ke7 5. Ke5 b4 6. Kd4 Nb5+ 7. Kc4 Nc7
8. Kxb4 Nxe6 9. Kc4 Kxd7 10. Kd5
(2) 15-> 1:52 4.45 1. ... Nc3 2. d6 b5 3. e6+ Ke8 4. d7+
Ke7 5. Ke5 b4 6. Kd4 Nb5+ 7. Kc4 Nc7
8. Kxb4 Nxe6 9. Kc4 Kxd7 10. Kd5
16 2:36 -- 1. ... Nc3
16 3:16 3.35 1. ... Nc3 2. e6+ Ke8 3. Ke5 b5 4.
h4 b4 5. g5 hxg5 6. h5 Ne2 7. h6 Nf4
8. h7 Ng6+ 9. Kf5 Nh8 10. Ke4 Ke7
(4) 16-> 8:45 3.35 1. ... Nc3 2. e6+ Ke8 3. Ke5 b5 4.
h4 b4 5. g5 hxg5 6. h5 Ne2 7. h6 Nf4
8. h7 Ng6+ 9. Kf5 Nh8 10. Ke4 Ke7
17 9:18 -- 1. ... Nc3
time=15:00 cpu=98% mat=2 n=308371209 fh=94% nps=342417
ext-> checks=28473557 recaps=284194 pawns=5001621 1rep=2762253
thrt:102843
predicted=0 nodes=308371209 evals=19203233
endgame tablebase-> probes done=353 successful=353
SMP-> split=0 stop=0 data=0/64 cpu=14:49 elap=15:00
(done on K7/600)
Regards,
Heiner
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