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Subject: Re: Start your engines - Queen sac (C 19.06)

Author: Slater Wold

Date: 14:50:23 11/29/03

Go up one level in this thread


On November 29, 2003 at 14:22:08, George Sobala wrote:

>How quickly does your engine find the queen sac?
>Rebel 12 prefers it instantly.
>
>This position came up in a tournament game on ICC yesterday, Rebel 12 v (I
>think) Fritz 8 with a human operator, 10 6 time control.
>
>[D] rnr3k1/1b1nbppp/pq2p3/1p1pN3/3P1P2/4P1P1/PPQBN1BP/2R2RK1 w - - 4 1
>
>[Event "ICC tourney 438 (10 6)"]
>[Site "Internet Chess Club"]
>[Date "28/11/2003"]
>[Round "2"]
>[White "redshift"]
>[Black "KevNY"]
>[Result "1-0"]
>[WhiteElo "2903"]
>[BlackElo "2334"]
>[Opening "Queen's Indian: 4.g3"]
>
>1. c4 Nf6 2. Nf3 e6 3. d4 b6 4. g3 Bb4+ 5. Bd2 Be7 6. Bg2 c6 7. Nc3 d5 8. Ne5
>O-O 9. cxd5
>cxd5 10. O-O Bb7 11. Rc1 Nfd7 12. f4 a6 13. e3 b5 14. Ne2 Qb6 15. Qc2 Rc8 16.
>Qxc8+ Bxc8
>17. Rxc8+ Nf8 18. f5 Qb7 19. Rfc1 Bd6 20. fxe6 fxe6 21. Bh3 g5 22. Ba5 Ra7 23.
>Rd8 b4
>24. Rxd6 Qb5 25. Rd8 Qxe2 26. Rf1 Qxe3+ 27. Kh1 Kg7 28. Rxb8 Ng6 29. Bb6 Re7 30.
>Bd8
>Nxe5 31. Bxe7 Qxd4 32. Bf6+ Kh6 33. Re8 Qd3 34. Bxe5 Qe4+ 35. Kg1 Qe3+ 36. Rf2
>Qe1+ 37. Kg2
>Qe4+ 38. Kf1 Kh5 39. Bxe6 b3 40. g4+ { Black resigns} 1-0

starting thread 1
                6->   0.17  -0.18   1. Qxc8+ Bxc8 2. Rxc8+ Nf8 3. Nc6 Nxc6
                                    4. Rxa8 f5 (s=4)
                7     0.23  -0.16   1. Qxc8+ Bxc8 2. Rxc8+ Nf8 3. Nc6 Qb7
                                    4. Nxe7+ Qxe7 5. f5 Qd7 6. Rc5 (s=3)
                7->   0.39  -0.16   1. Qxc8+ Bxc8 2. Rxc8+ Nf8 3. Nc6 Qb7
                                    4. Nxe7+ Qxe7 5. f5 Qd7 6. Rc5 (s=2)
                8     0.67  -0.07   1. Qxc8+ Bxc8 2. Rxc8+ Nf8 3. f5 Qd6
                                    4. fxe6 Qxe6 5. Rc7 f6 6. Nf4
                8->   1.03  -0.07   1. Qxc8+ Bxc8 2. Rxc8+ Nf8 3. f5 Qd6
                                    4. fxe6 Qxe6 5. Rc7 f6 6. Nf4
                9     1.53  -0.13   1. Qxc8+ Bxc8 2. Rxc8+ Nf8 3. Rfc1
                                    f5 4. Nd7 Qd6 5. Nxb8 Rxb8 6. Rxb8
                                    Qxb8 7. Kf2
                9->   2.16  -0.13   1. Qxc8+ Bxc8 2. Rxc8+ Nf8 3. Rfc1
                                    f5 4. Nd7 Qd6 5. Nxb8 Rxb8 6. Rxb8
                                    Qxb8 7. Kf2
               10     3.16  -0.12   1. Qxc8+ Bxc8 2. Rxc8+ Nf8 3. f5 Qb7
                                    4. Rfc1 Bd6 5. Nf4 g5 6. Nh3 Qe7
               10->   5.27  -0.12   1. Qxc8+ Bxc8 2. Rxc8+ Nf8 3. f5 Qb7
                                    4. Rfc1 Bd6 5. Nf4 g5 6. Nh3 Qe7 (s=2)
               11     8.39  -0.08   1. Qxc8+ Bxc8 2. Rxc8+ Nf8 3. Rfc1
                                    b4 4. Nc6 Bd6 5. Nxb8 Rxb8 6. Kf2 Rxc8
                                    7. Rxc8 f5 8. h3
               11->  11.80  -0.08   1. Qxc8+ Bxc8 2. Rxc8+ Nf8 3. Rfc1
                                    b4 4. Nc6 Bd6 5. Nxb8 Rxb8 6. Kf2 Rxc8
                                    7. Rxc8 f5 8. h3
               12    19.30     ++   1. Qxc8+!!
               12    22.78   0.55   1. Qxc8+ Bxc8 2. Rxc8+ Nf8 3. f5 Qb7
                                    4. Rfc1 Bd6 5. fxe6 fxe6 6. Bh3 g6
                                    7. Bxe6+ Kg7 8. Bg4 Qe7
               12->  24.88   0.55   1. Qxc8+ Bxc8 2. Rxc8+ Nf8 3. f5 Qb7
                                    4. Rfc1 Bd6 5. fxe6 fxe6 6. Bh3 g6
                                    7. Bxe6+ Kg7 8. Bg4 Qe7
               13    29.63   0.60   1. Qxc8+ Bxc8 2. Rxc8+ Nf8 3. f5 Qb7
                                    4. Rfc1 Bd6 5. fxe6 fxe6 6. Bh3 g6
                                    7. Bxe6+ Kg7 8. Bb4 h6 9. Bxd6 Nxe6
               13->  34.69   0.60   1. Qxc8+ Bxc8 2. Rxc8+ Nf8 3. f5 Qb7
                                    4. Rfc1 Bd6 5. fxe6 fxe6 6. Bh3 g6
                                    7. Bxe6+ Kg7 8. Bb4 h6 9. Bxd6 Nxe6
               14    46.61   0.98   1. Qxc8+ Bxc8 2. Rxc8+ Nf8 3. f5 Qb7
                                    4. Rxf8+ Kxf8 5. fxe6 f6 6. Nc3 Ra7
                                    7. Nxd5 Qc8 8. Nxe7 Rxe7 9. d5 Ke8
               14->  52.03   0.98   1. Qxc8+ Bxc8 2. Rxc8+ Nf8 3. f5 Qb7
                                    4. Rxf8+ Kxf8 5. fxe6 f6 6. Nc3 Ra7
                                    7. Nxd5 Qc8 8. Nxe7 Rxe7 9. d5 Ke8
              time=1:00  cpu=199%  mat=0  n=82702976  fh=94%  nps=1377k
              ext-> chk=992844 cap=201939 pp=39859 1rep=85500 mate=5948
              predicted=0  nodes=82702976  evals=26146644
              endgame tablebase-> probes=0  hits=0
              SMP->  split=690  stop=57  data=5/4096  cpu=1:59  elap=1:00



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