Author: Enrique Irazoqui
Date: 09:37:06 03/13/01
Go up one level in this thread
On March 13, 2001 at 11:53:39, Dan Andersson wrote:
>I was involved in a consultation game recently with interesting play where we
>reached a position of some interest. I left the game after I failed to convince
>the rest of the black players of my move, up till then I had managed to sway
>them over. The 21st move chosen is ok, but white gets more activity than he
>deserves.
>
>[Event "ICS Unrated standard match"]
>[Site "freechess.org"]
>[Date "2001.03.12"]
>[Round "-"]
>[White "Kokesh"]
>[Black "Chessty"]
>[Result "1-0"]
>[WhiteElo "1676"]
>[BlackElo "1500"]
>[TimeControl "3600+60"]
>
>1. e4 c5 2. Nf3 d6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 a6 6. Be3 Ng4 7. Bg5 h6 8.
>Bc1 b5 9. Ncxb5 e5 10. Nf5 Bxf5 11. exf5 Nf6 12. Nc3 d5 13. f4 e4 14. Be3
>Nc6 15. Bd4 Bb4 16. Be2 O-O 17. a3 Nxd4 18. Qxd4 Bxc3+ 19. Qxc3 d4 20. Qd2
>Qb6 21. Qb4 Rfb8 22. Qxb6 Rxb6 23. O-O-O Rd8 24. Bc4 Ng4 25. Rhe1 Nf2 26.
>Rd2 e3 27. Rxe3 Rbd6 28. Re7 Ng4 29. Rxf7
>{Chessty resigns} 1-0
>
>[D]r4rk1/5pp1/pq3n1p/5P2/1Q1ppP2/P7/1PP1B1PP/R3K2R b KQ - 0 21
>
>Here I recommended Qxb4 followed by Rfc8, a paradoxical move dictated solely by
>my liking of double edged tactical endgames, it gives white back some activity
>though. The thing is, will any chess program find the best move in the position?
>Qa7! is best, white is unable to castle at any flank, look what happens after
>22. O-O-O d3!, after Rad1 white is stranded and will lose fast.
>
>Regards Dan Andersson
All programs I tried like Qa7 best. Deep Shredder was the quickest to pick it
and the one that felt happiest about it.
Enrique
Analysis by Deep Shredder:
Engine: Deep Shredder
by Stefan Meyer-Kahlen
1.00 0:00 +1.51-- 1.Bxf6 exf6 (5) 0.3
1.00 0:00 +0.84-- 1.Bxf6 Bxf6 2.axb4 (17) 1.1
1.00 0:00 +0.65 1.Bxf6 Bxf6 2.axb4 (24) 1.6
1.00 0:00 +0.73++ 1.Nd5 Nxd5 2.Bxg7 Kxg7 3.exd5 bxa3 (182) 12.1
1.00 0:00 +0.96 1.Nd5 Bxd5 2.exd5 bxa3 (263) 17.5
1.00 0:00 +6.04++ 1.Qh6 Bxh6+ (508) 33.8
1.00 0:00 +2.72 1.Qh6 Bxh6+ (523) 34.8
2.00 0:00 -4.06-- 1.Qh6 Bxh6+ 2.Rxh6 (613) 40.8
2.00 0:00 -4.84-- 1.Qh6 Bxh6+ 2.Rxh6 (636) 42.4
2.00 0:00 -9.05 1.Qh6 Bxh6+ 2.Rxh6 bxc3 3.Bxc3 (740) 49.3
2.00 0:00 +0.65++ 1.Bxf6 Bxf6 2.Bc4 (748) 49.8
2.00 0:00 +0.65 1.Bxf6 Bxf6 2.Bc4 (760) 50.6
2.00 0:00 +0.79++ 1.Nd5 Qc4 (916) 61.0
2.00 0:00 +0.96 1.Nd5 Bxd5 2.exd5 bxa3 (1.003) 66.8
3.00 0:00 +0.96 1.Nd5 Bxd5 2.exd5 bxa3 (2.580) 172.0
4.00 0:00 +0.71-- 1.Nd5 Bxd5 2.Qxd5 Nxd5 3.Rh8+ Bxh8 (5.785) 186.6
4.00 0:00 +0.21-- 1.Nd5 Bxd5 2.Qxd5 Nxd5 3.Rh8+ Bxh8 (6.422) 207.1
4.00 0:00 +0.13 1.Nd5 Bxd5 2.Bxf6 Bxf6 3.Qxd5 bxa3 (12.161) 258.7
4.00 0:00 +0.14++ 1.axb4 Rb5 2.Nxb5 Qxc2+ 3.Rxc2 (16.994) 274.0
4.00 0:00 +0.49++ 1.axb4 Rb5 2.Nxb5 Qxc2+ 3.Rxc2 (18.255) 294.4
4.00 0:00 +0.73 1.axb4 Rxb4 2.Qe3 Qc6 3.Be2 (22.997) 294.8
5.00 0:00 +0.55 1.axb4 Rxb4 2.Qe3 Qc6 3.g5 Nd5 4.Nxd5 Bxd4 5.Nxe7+ Kf8
6.Nxc6 Bxe3+ 7.Kd1 Rxc6 (31.256) 250.0
6.00 0:00 +0.68 1.axb4 Rxb4 2.Qe3 Qc6 3.g5 Nh5 4.Bxg7 Kxg7 (95.686) 322.1
7.01 0:00 +0.43-- 1.axb4 Rxb4 2.Qe3 Qa5 3.Bxf6 Bxf6 4.Rh8+ Bxh8 5.Rxh8+
Kxh8 6.Qd4+ Rxd4 (265.032) 377.0
7.01 0:00 +0.34 1.axb4 Rxb4 2.Bxf6 exf6 3.Qh4 f5 4.Qh7+ Kf8 5.gxf5 Bxc3
6.bxc3 Qxc3 7.fxe6 Qxf3 (350.062) 379.6
7.09 0:02 +0.35++ 1.Bxf6 exf6 2.Qh4 Bxg4 3.fxg4 Rf8 4.Bxa6 bxa3 5.Kd2 Rxb2
(844.132) 385.9
7.09 0:02 +0.36 1.Bxf6 exf6 2.Qh4 f5 3.axb4 Bxc3 4.bxc3 Qxc3 5.Qh7+ Kf8
6.gxf5 (895.384) 387.2
best move: Bd4xf6 time: 0:05.859 min n/s: 396.631 CPU 197.8% nodes: 2.323.864
position:
1.00 0:00 -0.78-- 1...Qxb4+ 2.axb4 (2)
1.00 0:00 +0.62 1...Qxb4+ 2.axb4 (8)
1.00 0:00 +0.68++ 1...Qc7 (18)
1.00 0:00 +1.26++ 1...Qc7 2.Qxd4 Qxc2 (20)
1.00 0:00 +1.41 1...Qc7 2.Qxd4 Qxc2 (24)
2.00 0:00 +1.41 1...Qc7 2.Qxd4 Qxc2 (219)
3.00 0:00 +1.41 1...Qc7 2.Qxd4 Qxc2 (866)
4.00 0:00 +1.36 1...Qc7 2.Qxd4 Rfd8 3.Qa4 Qxf4 4.Bxa6 Qxf5 (3.526)
5.00 0:00 +1.36 1...Qc7 2.Qxd4 Rfd8 3.Qa4 Qxf4 4.Bxa6 Qxf5 (7.549) 471.8
6.00 0:00 +1.25 1...Qc7 2.Qxd4 Qxf4 3.Qf2 Qe5 4.c3 (27.167) 431.2
7.01 0:00 +1.37 1...Qc7 2.Qxd4 Qxf4 3.Qf2 Qe5 4.Qb6 Rfc8 (68.544) 364.5
8.01 0:00 +1.12-- 1...Qc7 2.Qxd4 Qxf4 3.Rd1 Nd5 4.Rf1 Qxh2 5.Qxd5 Qxg2
(125.300) 380.8
8.01 0:00 +1.02 1...Qc7 2.Qxd4 Rad8 3.Qc3 Qxf4 4.Bxa6 e3 5.Rd1 (208.474)
381.1
9.01 0:01 +1.23 1...Qc7 2.Qxd4 Qxf4 3.Rd1 Rfc8 4.Bc4 Rab8 5.a4 Rd8
(483.567) 386.8
10.01 0:03 +1.07 1...Qc7 2.Qxd4 Qxf4 3.Rd1 Rfc8 4.Bc4 a5 5.Rd2 Qxf5 6.Rf2
(1.202.840) 396.7
10.02 0:04 +1.08++ 1...Qa7 2.Rd1 Rfd8 3.Kf1 Qc7 4.g3 Rab8 5.h3 (1.670.105)
390.0
10.02 0:05 +1.16 1...Qa7 2.Rd1 Rfd8 3.Qa4 a5 4.g4 Rac8 5.b4 Qc7 6.bxa5 Qxf4
7.Rxd4 (2.044.310) 388.2
11.01 0:08 +1.29 1...Qa7 2.Rd1 Rfd8 3.g4 Rab8 4.Qa5 Rd6 5.b4 Rc6 6.Kf1 Re8
(3.470.310) 394.4
12.01 0:17 +1.24 1...Qa7 2.Rd1 Rfd8 3.g4 d3 4.cxd3 exd3 5.Rxd3 Rxd3 6.Bxd3
Nxg4 7.Qd2 Re8+ 8.Kf1 Qd4 (7.020.340) 396.5
13.01 0:43 +1.49++ 1...Qa7 2.Rd1 Rfd8 3.g4 d3 4.cxd3 exd3 5.Rxd3 Rxd3 6.Kf1
Qe3 7.Qa4 (17.235.105) 391.8
13.01 1:04 +1.61 1...Qa7 2.Rd1 Rfd8 3.Qa4 d3 4.cxd3 Qe3 5.Kf1 exd3 6.Bf3 Rd4
7.Qc6 Re8 8.Qxa6 d2 9.Qe2 (25.289.313) 390.9
14.01 3:01 +1.86++ 1...Qa7 2.Rd1 Rfd8 3.Qa4 d3 4.cxd3 exd3 5.Rxd3 Rxd3
6.Bxd3 Qe3+ 7.Be2 Rc8 8.Kf1 Rc1+ 9.Bd1 Qd2 10.Qxa6 Rxd1+ (70.493.674) 389.3
New position
r4rk1/5pp1/pq3n1p/5P2/1Q1ppP2/P7/1PP1B1PP/R3K2R b KQ - 0 1
Analysis by DEEP FRITZ :
1...Rfb8 2.Qxb6 Rxb6
= (-0.19) Depth: 2/6 00:00:00
1...Rfb8 2.Qxb6 Rxb6
= (-0.19) Depth: 2/6 00:00:00
1...Rfb8 2.Qxb6 Rxb6
= (-0.19) Depth: 2/6 00:00:00
1...Rfb8 2.Qxb6 Rxb6 3.0-0-0
= (-0.22) Depth: 3/9 00:00:00
1...Qxb4+!
= (-0.25) Depth: 3/10 00:00:00
1...Qxb4+ 2.axb4 Rfc8 3.Kd2 Rc6
= (-0.19) Depth: 4/12 00:00:00 1kN
1...Rfb8!
= (-0.22) Depth: 4/12 00:00:00 1kN
1...Rfb8! 2.Ra2
= (-0.25) Depth: 4/13 00:00:00 2kN
1...Rab8!
³ (-0.28) Depth: 4/13 00:00:00 3kN
1...Qxb4+ 2.axb4 Rfc8 3.Kd2 Rcb8 4.Ra4
= (-0.19) Depth: 5/18 00:00:00 8kN
1...Qxb4+ 2.axb4 Rfc8 3.Kd2 Rcb8 4.Ra4
= (-0.19) Depth: 5/18 00:00:00 8kN
1...Qxb4+ 2.axb4 Rfc8 3.Kd2 Rcb8 4.Ra4
= (-0.19) Depth: 5/18 00:00:00 8kN
1...Qxb4+ 2.axb4 Rfc8 3.Kd2 Rcb8 4.Ra4
= (-0.19) Depth: 5/18 00:00:00 8kN
1...Qxb4+!
³ (-0.50) Depth: 6/17 00:00:00 25kN
1...Qxb4+! 2.axb4 Nd5 3.Kd2 Nxf4 4.g3
³ (-0.69) Depth: 6/17 00:00:00 30kN
1...Qxb4+ 2.axb4 Nd5 3.Kf2 Nxb4 4.c3 dxc3 5.bxc3 Nd3+ 6.Bxd3
³ (-0.69) Depth: 7/21 00:00:00 79kN
1...Qxb4+ 2.axb4 Nd5 3.0-0-0 Nxf4 4.Bc4 Rfd8 5.Rhe1 e3
µ (-0.75) Depth: 8/24 00:00:00 207kN
1...Qxb4+ 2.axb4 Nd5 3.0-0-0 Nxf4 4.Bc4 Rfd8 5.g3 Ng2 6.Kd2
³ (-0.59) Depth: 9/25 00:00:00 404kN
1...Qxb4+ 2.axb4 Rfc8 3.Kd2 Nd5 4.Rhc1 Nxb4 5.c3 dxc3+ 6.Rxc3 Rd8+ 7.Ke3
³ (-0.63) Depth: 10/25 00:00:00 991kN
1...Qxb4+ 2.axb4 Rfc8 3.Kd2 Nd5 4.Rhc1 Nxb4 5.c3 e3+ 6.Kd1 dxc3 7.bxc3
µ (-0.75) Depth: 11/28 00:00:01 2105kN
1...Qxb4+ 2.axb4 Rfc8 3.Kd2 Nd5 4.Ra4 Nxf4 5.Bxa6 e3+ 6.Kd1 Nxg2 7.Rg1
µ (-0.72) Depth: 12/29 00:00:03 4938kN
1...Qxb4+ 2.axb4 Rfc8 3.Kd2 Nd5 4.Rhc1 Nxb4 5.c3 e3+ 6.Kd1 dxc3 7.bxc3
³ (-0.63) Depth: 13/32 00:00:11 14462kN
1...Qxb4+ 2.axb4 Rfc8 3.Kd2 Nd5 4.Rhc1 Nxb4 5.c3 e3+ 6.Kd1 dxc3 7.bxc3
³ (-0.63) Depth: 14/34 00:00:42 54275kN
1...Qa7!
³ (-0.66) Depth: 14/38 00:01:27 109576kN
1...Qa7! 2.Rd1 Rfd8 3.Qd2 Rac8 4.b3 d3 5.cxd3 exd3 6.Bxd3 Ng4 7.Rf1
µ (-0.91) Depth: 14/38 00:02:39 193111kN
1...Qa7 2.Qd2 Rfd8 3.0-0-0 Rab8 4.Rhe1 a5 5.a4 d3 6.Bf1 Rdc8 7.Bxd3
µ (-1.19) Depth: 15/37 00:05:42 407759kN
1...Qa7 2.Qd2 Rfd8 3.b3 Nd5 4.Bc4 Ne3 5.f6 gxf6 6.Qe2 Qc7 7.g3
µ (-1.16) Depth: 16/40 00:12:08 897056kN
(Irazoqui, Cadaqués 13.03.2001)
New position
r4rk1/5pp1/pq3n1p/5P2/1Q1ppP2/P7/1PP1B1PP/R3K2R b KQ - 0 1
Analysis by Junior 7 beta:
1...Qxb4+ 2.axb4 e3 3.Bxa6
= (-0.15) Depth: 3 00:00:00
1...Qxb4+ 2.axb4 Rfb8 3.Bxa6 Rxb4 4.b3
= (0.00) Depth: 6 00:00:00 3kN
1...Qc7 2.Rf1 Qxc2 3.Qxd4 Rfc8
= (-0.14) Depth: 6 00:00:00 7kN
1...Qc7 2.Qxd4 Rfd8 3.Qe3 Qxc2 4.b4 Nd5 5.Qc5
= (-0.19) Depth: 9 00:00:00 67kN
1...Qxb4+ 2.axb4 Rfb8 3.b3 Rxb4 4.Rxa6 Rxa6 5.Bxa6
= (-0.20) Depth: 9 00:00:00 87kN
1...Qxb4+ 2.axb4 Nd5 3.Kd2 e3+ 4.Kd1 Nxb4 5.Bc4 Rfc8
³ (-0.48) Depth: 12 00:00:01 759kN
1...Qxb4+ 2.axb4 Nd5 3.Kf2 Nxb4 4.Rhc1 Rfc8 5.c3
³ (-0.51) Depth: 15 00:00:11 8852kN
1...Qa7 2.Rd1 d3 3.cxd3 Rab8 4.Qa5 Rb5 5.Qd2 e3 6.Qc3 Rfb8 7.b4 Rxf5 8.d4
³ (-0.54) Depth: 15 00:00:30 21265kN
1...Qa7!
µ (-0.84) Depth: 17 00:02:34 110328kN
(Irazoqui, Cadaqués 13.03.2001)
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