Author: Robert Hyatt
Date: 19:12:52 05/08/04
Go up one level in this thread
On May 08, 2004 at 22:01:20, Uri Blass wrote: >On May 08, 2004 at 20:52:07, Robert Hyatt wrote: > >>On May 08, 2004 at 14:26:39, Uri Blass wrote: >> >>>On May 08, 2004 at 13:38:38, Robert Hyatt wrote: >>> >>>>On May 08, 2004 at 13:25:03, Will Singleton wrote: >>>> >>>>>On May 08, 2004 at 13:14:04, Kurt Utzinger wrote: >>>>> >>>>>>On May 08, 2004 at 11:54:58, Rob Basham wrote: >>>>>> >>>>>>>[D]2r2rk1/p1q1bpp1/1p6/n2R4/8/P4N2/1B2QPPP/5RK1 w - - 0 1 >>>>>>> >>>>>>>White plays....Bxg7...! >>>>>>> >>>>>>>Any programs find this neat move? >>>>>>> >>>>>>>this is taken from the 24 brilliant moves file.... >>>>>>> >>>>>>>thanks >>>>>>>Rob >>>>>> >>>>>> >>>>>> My beloved Aristarch 4.41 can't find the winning move >>>>>> within reasonable time. >>>>>> Kurt >>>>>> >>>>>>Aristarch 4.41 UCI1: (P4 1.8/32 MB hash) >>>>>> 2- 00:00 -0.42 Bxg7 Kxg7 >>>>>> 2 00:00 -1.03 Bxg7 Kxg7 >>>>>> 2+ 00:00 -1.02 h4 Bxa3 >>>>>> 2+ 00:00 -0.82 h4 Bxa3 >>>>>> 2 00:00 0.24 h4 Rfd8 >>>>>> 2+ 00:00 0.25 h3 Rfd8 >>>>>> 2 00:00 0.32 h3 Rfd8 >>>>>> 2+ 00:00 0.33 Qd3 Rfd8 >>>>>> 2 00:00 0.34 Qd3 Rfd8 >>>>>> 2+ 00:00 0.35 Re1 Qc4 >>>>>> 2+ 00:00 0.55 Re1 Qc4 >>>>>> 2 00:00 0.64 Re1 Rfd8 >>>>>> 2+ 00:00 0.65 Rfd1 Rfd8 >>>>>> 2 00:00 0.69 Rfd1 Rfd8 >>>>>> 2+ 00:00 0.70 Rc1 Rfd8 >>>>>> 2 00:00 0.75 Rc1 Nc4 >>>>>> 3 00:00 0.82 Rc1 Nc4 a4 >>>>>> 3+ 00:00 0.83 Rfd1 Rfd8 Ng5 >>>>>> 3 00:00 0.92 Rfd1 Nc4 Rd7 >>>>>> 3+ 00:00 0.93 Re1 Rfd8 Rxd8+ Rxd8 Qxe7 >>>>>> 3 00:00 1.03 Re1 Rfe8 Qe4 >>>>>> 4- 00:00 0.61 Re1 Rfe8 Qe4 Bxa3 >>>>>> 4 00:00 0.52 Re1 Rfe8 Qe3 Nc4 >>>>>> 4+ 00:00 0.53 Rfd1 Nc4 Rd7 Nxa3 >>>>>> 4+ 00:00 0.73 Rfd1 Nc4 Rd7 Nxa3 >>>>>> 4 00:00 0.79 Rfd1 Rfd8 Qe4 Nc4 >>>>>> 4+ 00:00 0.80 Rc1 Nc4 Nd2 Nxb2 >>>>>> 4 00:00 0.80 Rc1 Bc5 Qe4 Rfe8 >>>>>> 5 00:00 0.81 Rc1 Nc4 Ne5 Qb7 Rd7 >>>>>> 6 00:00 0.67 Rc1 Bc5 Qe4 Nb3 Re1 Rfd8 >>>>>> 6+ 00:00 0.68 Qe4 Nc4 Rc1 Rfd8 Rxd8+ Bxd8 Qe8+ Kh7 Qf8 Bf6 >>>>>> 6 00:00 0.87 Qe4 Qc2 Qxe7 Nc6 Qg5 Qxb2 >>>>>> 7 00:00 0.78 Qe4 Qc4 Qf5 Qb3 Rb1 Rcd8 Rb5 >>>>>> 7+ 00:00 0.79 Rc1 Bc5 Qe4 Nb3 Re1 Rfd8 Qf5 >>>>>> 7 00:01 0.88 Rc1 Qb7 Rcd1 Rfe8 Rd7 Bd6 Ne5 Rxe5 >>>>>> 8 00:01 0.78 Rc1 Qxc1+ Bxc1 Rxc1+ Ne1 Bxa3 Qe4 Rc4 Qe3 Bc5 >>>>>> 9 00:03 0.77 Rc1 Qxc1+ Bxc1 Rxc1+ Ne1 Bxa3 Qe4 Nc4 Rh5 Rd8 Qh7+ Kf8 Qe4 >>>>>> 9+ 00:04 0.78 Qe4 Qc2 Qxe7 Nc6 Qd6 Qxb2 Rd2 Rfd8 Qxd8+ Nxd8 >>>>>> 9 00:05 0.93 Qe4 Qc4 Rd4 Qc2 Qxe7 Nc6 Qe4 Qxb2 Rd6 >>>>>> 9+ 00:08 0.94 Nd2 Rfd8 Qg4 g6 Rxd8+ Qxd8 Ne4 Rc2 Rd1 Rxb2 Rxd8+ Bxd8 >>>>>> 9 00:09 0.99 Nd2 Bd6 Qg4 Bxh2+ Kh1 f5 Rxf5 Rxf5 Qxf5 Nc4 Nxc4 Qxc4 >>>>>>10 00:15 1.34 Nd2 Bd6 Ne4 Bxh2+ Kh1 Qc2 Rd2 Qc7 Bxg7 Nc4 Qg4 Nxd2 >>>>>>11 00:33 1.28 Nd2 Rfd8 Qg4 g6 Qh3 f6 Qe6+ Kf8 Bxf6 Rxd5 >>>>>>11+ 00:40 1.29 Bxg7 Kxg7 Ne5 Qb7 Qg4+ Kh8 Qh5+ >>>>>>11+ 00:42 1.49 Bxg7 Kxg7 Ne5 Qb7 Qg4+ Kh8 Qh5+ >>>>>>11 00:47 1.66 Bxg7 Kxg7 Ne5 Rfd8 >>>>>>12 01:00 1.27 Bxg7 Kxg7 Ne5 Rfd8 >>>>>>12+ 01:13 1.28 Nd2 Nc6 Qg4 Bf6 Bxf6 Rfe8 >>>>>>12 01:30 1.31 Nd2 Nc4 Nxc4 >>>>>>13 02:59 1.45 Nd2 Rcd8 >>>>>>14 09:03 1.18 Nd2 Rcd8 >>>>> >>>>> >>>>>Likely because Bxg7 isn't winning? I don't see it. >>>>> >>>>>1. Bxg7 Kxg7 2. Ne5 Rfd8 3. Qg4+ Kf8 4. Qf5 f6 5. Nd7+ Rxd7 6. Rxd7 Qe5 7. Qh3 >>>>>Rc7 * >>>> >>>> >>>>I let Crafty burn a while and it doesn't like Bg7 particularly either. It >>>>thinks the score after Bg7 is about the same as the score for other moves by >>>>white. I noticed in the PV after Bxg7 that it saw this as two pieces for a rook >>>>and pawn, which it will not like much, ever, unless it finds something >>>>tactically farther down the line: >>>> >>>> 11-> 23.98 0.65 1. ... Kxg7 2. Ne5 Rfd8 3. Qg4+ Kf8 >>>> 4. Nd7+ Rxd7 5. Rxd7 Qc3 6. Rxa7 Bxa3 >>>> 7. Qd7 Qc4 >>>> 12 1:15 0.62 1. ... Kxg7 2. Ne5 Rfd8 3. Qg4+ Kf8 >>>> 4. Nd7+ Rxd7 5. Rxd7 Qc4 6. Qh3 Qh4 >>>> 7. Qf5 Qf6 8. Qd3 >>>> 12-> 1:19 0.62 1. ... Kxg7 2. Ne5 Rfd8 3. Qg4+ Kf8 >>>> 4. Nd7+ Rxd7 5. Rxd7 Qc4 6. Qh3 Qh4 >>>> 7. Qf5 Qf6 8. Qd3 >>>> 13 4:17 0.92 1. ... Kxg7 2. Ne5 Rfd8 3. Qh5 Bf6 >>>> 4. Nd7 Rxd7 5. Qg4+ Kf8 6. Rxd7 Qc4 >>>> 7. Qf3 Qc6 8. Qf5 >>>> 13-> 4:37 0.92 1. ... Kxg7 2. Ne5 Rfd8 3. Qh5 Bf6 >>>> 4. Nd7 Rxd7 5. Qg4+ Kf8 6. Rxd7 Qc4 >>>> 7. Qf3 Qc6 8. Qf5 >>> >>>Deep blue JR already proved that ksparov blundered when he played Bxg7 and the >>>right move is Rh5 >> >>I don't buy that. It might have proved that Kasparov lost after Bxg7, but it >>hardly proves that Rh5 is right and Bxg7 is wrong. White can lose just as >>easily as black can win... > >Bxg7 is not a losing move but Rh5 is better based on analysis of chess programs. > >It was not exactly correct that Deep blue JR proved that kasparov missed the win >by Bxg7 but it is correct that Rh5 seems to be better also based on analysis of >other programs. > >Uri That I'll buy. After Vincent's ruinous use of the word "proof" and "proves" I try to be a bit more careful to avoid looking as idiotic as he does when he overuses either word (proof usually rather than proves)..
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