Author: Dann Corbit
Date: 09:56:05 01/03/02
Go up one level in this thread
On January 03, 2002 at 12:44:49, pavel wrote:
>[D]r3k2r/p4ppp/4p3/3qQ3/1pN5/1K6/1P2B1PP/7R b kq - 0 22
>
>Can your program find 22.Be2 ?
>
>According to the commentator (Kramnik?) this is a very good move.
>
>Here is the game, which has been taken from the CM8k database.
>
>
>-------------------------------------------------------------------------
>
>Vladimir Kramnik - Alexei Shirov
>Linares Spain (5), 2000
>
>"I can't remember making any really serious mistakes in this tournament," said
>Kramnik after sharing first with Kasparov in a double round robin (ahead of
>Leko, Khalifman, Anand and Shirov). This game sheds light on a critical
>variation of the Slav Defense that has baffled theory for decades. After only a
>dozen moves an ending is reached where Black has three pawns for a piece. "In
>general I have the feeling that it might be slightly better for White, although
>close to a draw," noted Kramnik, whose flawless endgame technique helps avenge
>his loss of a match to Shirov in 1998. 1.Nf3 d5 2.d4 c6 3.c4 Nf6 4.Nc3 dxc4 5.a4
>Bf5 6.Ne5 Kramnik has used this Krause Attack rather consistently since 1994 and
>scored good results with it. Two rounds earlier against Anand he tried 6. e3.
>6...e6 7.f3 Bb4 8.e4 Bxe4 This piece sac is virtually forced, since White
>regains the pawn advantageously after 8...Bg6 9. Bxc4. 9.fxe4 Nxe4 10.Bd2 Qxd4
>11.Nxe4 Qxe4+ 12.Qe2 Bxd2+ 13.Kxd2 Qd5+ 14.Kc2 Na6 15.Nxc4 b5 More active than
>15...Rd8 16. Qe5 Qxe5 17. Nxe5 Nb4 18. Kb3 Nd5 19. Bc4 as in Evans-Kramer, New
>York 1951. Nowadays, no way has been found for White to show a real advantage
>after 15...0-0 16. Qe5 Rfb8. 16.axb5 Nb4+ 17.Kc3 cxb5 18.Rd1 Better than 18.
>Kxb4 bxc4 19. Qxc4 Rb8. 18...Qc5 "This might be called a novelty, though it was
>played in Topalov-Anand, Dos Hermanas 1997. More usual is 18...bxc4 19. Rxd5
>Nxd5 20. Kd2. It's not easy to break Black's position, but it's no fun for him
>as he is suffering all game long and the best he can hope for is a draw." --
>Kramnik 19.Qe5 Nd5+ 20.Rxd5 b4+ White stands well after 20...Qxd5 21. Nd6 Kf8
>22.Qxd5 exd5 23. Nxb5. 21.Kb3 Qxd5 22.Be2 "This is a very good move, which set
>him thinking for a long time. After the game Shirov told me he had not looked at
>this possibility in his preparation. 22. Qxg7 was possible and does not lose by
>force or anything, but it is very dangerous for White after 22...Qd1 23. Ka2 Qa4
>24. Na3. I think he was mainly expecting 22. Qxd5 exd5 23. Na5 but I did not
>like the idea that his king might come into the center. I opted for the text
>since it forces him to castle and remove his king from the center." -- Kramnik
>22...0-0 Simply bad is 22...Qxg2? 23. Nd6 Kf8 24. Rf1. 23.Qxd5 exd5 24.Na5 Rfe8
>"Black does have a material edge, but it is clear that some of his pawns are
>going to fall. I still believe that with very accurate play Black must be able
>to make a draw. But it is an uphill struggle, as witness the fact that Alexei,
>who is a good player, tried and failed." -- Kramnik 25.Bf3 Rac8 26.Rd1 Re3+
>27.Ka4 b3 28.Rxd5 g6 It's useful to stop back rank mate threats once and for
>all. 29.Rd7 Rc2 30.Ka3 Kg7 "This position requires deep analysis. There were
>some alternatives such as 30...a6 which during the game I actually believed to
>be his best option but still 31. Bd5 Rf2 32. Nc4 Ree2 33. Kxb3 with reasonable
>winning chances, even though it will not be easy. Also 30...Rxf3 31. gxf3 Rxh2
>32. Nxb3 h5 33.Rxa7 h4 34. Rc7 is highly complicated. Too difficult to
>calculate, and that's why my opponent got into serious time trouble." -- Kramnik
>31.Rxa7 h5 32.h3 h4 33.Rb7 Rc5 34.Kb4 Rf5 35.Rc7 g5 36.Nxb3 Rf4+ 37.Rc4 Rxc4+ "A
>serious mistake in time pressure. But it seems Black is lost anyway, which
>leaves the question of where exactly he went wrong? Difficult to say, perhaps
>his position was already very unpleasant right after the opening and it never
>recovered. Obviously his best chance was 37...Rexf3 38. gxf3 Rxf3 39. Rc3 (the
>point of 35. Rc7!) Rf2 40. Ka3 f5 41. Nd4 and White should be winning." --
>Kramnik 38.Kxc4 f5 39.Nd4 Kf6 40.b4 Re1 "He had probably overlooked that after
>40...Ke5 41. Nc2 very nicely traps his rook." -- Kramnik 41.b5 Ke5 42.Nc6+ Kd6
>43.b6 Rc1+ 44.Kb5 g4 45.b7 Rb1+ 46.Nb4 Kc7 47.hxg4 fxg4 48.Be4 If 48...Rb2 39.
>Kc4 h3 50. gxh3 gxh3 51. Kc3 decides the issue (51...Re2 52. Na6). 1-0 1-0
>
>
>-----------------------------------------------------------------------------
>
>
>Fritz 7 finds it in 17mins but it doesnt seem to think that its an advantage for
>white. So I am letting it work on this position for some more time.
I am going to see if any program finds it quickly...
Pepito wants to castle:
Son correctas:
+----+----+----+----+----+----+----+----+
8 | *R | | | | *K | | | *R |
+----+----+----+----+----+----+----+----+
7 | *P | | | | | *P | *P | *P |
+----+----+----+----+----+----+----+----+
6 | | | | | *P | | | |
+----+----+----+----+----+----+----+----+
5 | | | | *Q | Q | | | |
+----+----+----+----+----+----+----+----+
4 | | *P | N | | | | | |
+----+----+----+----+----+----+----+----+
3 | | K | | | | | | |
+----+----+----+----+----+----+----+----+
2 | | P | | | B | | P | P |
+----+----+----+----+----+----+----+----+
1 | | | | | | | | R |
+----+----+----+----+----+----+----+----+
a b c d e f g h
5 148 94 13009 Qd5xg2 ?? Nc4-d6 Ke8-e7 Rh1-f1 f6
5 138 95 15140 Qd5xg2 Qe5-b5 Ke8-f8 Qb5xb4 Kf8-g8 Qb4-e1 Ra8-d8 Kb3-a2
5 138 96 18841 Qd5xg2 Qe5-b5 Ke8-f8 Qb5xb4 Kf8-g8 Qb4-e1 Ra8-d8 Kb3-a2
6 118 106 53263 O-O Qe5xd5 e6xd5 Nc4-a5 Rf8-b8 Na5-c6 Rb8-e8
6 118 110 63806 O-O Qe5xd5 e6xd5 Nc4-a5 Rf8-b8 Na5-c6 Rb8-e8
7 98 113 76616 O-O Qe5xd5 e6xd5 Nc4-a5 Rf8-b8 Na5-c6 Rb8-e8 Rh1-e1
7 98 129 128104 O-O Qe5xd5 e6xd5 Nc4-a5 Rf8-b8 Na5-c6 Rb8-e8 Rh1-e1
8 65 196 362604 O-O ?? Qe5xd5 e6xd5 Nc4-a5 Rf8-b8 Na5-c6 Rb8-e8 Rh1-e1
8 54 206 403067 O-O Qe5xd5 e6xd5 Nc4-a5 Ra8-c8 Be2-a6 Rc8-c5 Kb3xb4
Rc5-c2
8 54 240 536727 O-O Qe5xd5 e6xd5 Nc4-a5 Ra8-c8 Be2-a6 Rc8-c5 Kb3xb4
Rc5-c2
9 67 259 617648 O-O Qe5xd5 e6xd5 Nc4-a5 Ra8-c8 Be2-f3 Rf8-d8 Rh1-d1 d4
Kb3xb4
9 67 347 953997 O-O Qe5xd5 e6xd5 Nc4-a5 Ra8-c8 Be2-f3 Rf8-d8 Rh1-d1 d4
Kb3xb4
10 37 415 1218952 O-O Qe5xd5 e6xd5 Nc4-a5 Rf8-e8 Be2-f3 Ra8-d8 Rh1-d1 d4
Na5-c6 Re8-e3 Kb3xb4
10 37 826 2642691 O-O Qe5xd5 e6xd5 Nc4-a5 Rf8-e8 Be2-f3 Ra8-d8 Rh1-d1 d4
Na5-c6 Re8-e3 Kb3xb4
11 27 977 3283919 O-O Qe5xd5 e6xd5 Nc4-a5 Ra8-e8 Be2-f3 Re8-e3 Kb3xb4 d4
Na5-c6 d3 Rh1-a1 Rf8-a8 Ra1xa7 Ra8xa7 Nc6xa7
11 27 2027 7263997 O-O Qe5xd5 e6xd5 Nc4-a5 Ra8-e8 Be2-f3 Re8-e3 Kb3xb4 d4
Na5-c6 d3 Rh1-a1 Rf8-a8 Ra1xa7 Ra8xa7 Nc6xa7
12 9 2467 9104870 O-O Qe5xd5 e6xd5 Nc4-a5 Rf8-e8 Be2-f3 Ra8-c8 Rh1-d1
Re8-e5 Kb3xb4 Rc8-b8 Kb4-c5 d4 Bf3-d5 Re5-h5 Kc5xd4 Rh5xh2
12 9 8777 32407453 O-O Qe5xd5 e6xd5 Nc4-a5 Rf8-e8 Be2-f3 Ra8-c8 Rh1-d1
Re8-e5 Kb3xb4 Rc8-b8 Kb4-c5 d4 Bf3-d5 Re5-h5 Kc5xd4 Rh5xh2
13 16 9583 35682972 O-O Qe5xd5 e6xd5 Nc4-a5 Rf8-e8 Be2-f3 Ra8-c8 Rh1-d1
Re8-e5 Rd1-d4 a6 Rd4xd5 Re5xd5 Bf3xd5 Rc8-d8
13 16 13971 51522084 O-O Qe5xd5 e6xd5 Nc4-a5 Rf8-e8 Be2-f3 Ra8-c8 Rh1-d1
Re8-e5 Rd1-d4 a6 Rd4xd5 Re5xd5 Bf3xd5 Rc8-d8
14 14 16792 63398732 O-O Qe5xd5 e6xd5 Nc4-a5 Ra8-d8 Rh1-d1 Rd8-d6 Be2-f3 d4
Na5-c6 d3 Nc6-e7 Kg8-h8 Kb3-c4 d2 Ne7-d5 Rf8-c8 Kc4-b3 Rd6-h
6 Rd1xd2 Rh6xh2 Kb3xb4
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