Author: Mihaly Szalai
Date: 12:03:04 09/05/04
Go up one level in this thread
On September 05, 2004 at 13:54:33, John Merlino wrote: >On September 05, 2004 at 11:18:44, Mihaly Szalai wrote: > >>[D]r4rk1/5pP1/1n1p4/1pqPpNb1/p5p1/P1P2P2/8/1KBnQ2R b - - 0 30 >> >>When I moved 30. Nf5, Pro Deo played 30...Bh4 INSTANTLY! >>Had it seen that all moves loses and chose a quick end?? >>I cannot believe it. > >Believe it -- the great mate finder, The King, says that it is true. 29...Nxd1 >leads to a Mate in 15 (or better) starting with 30.Nf5, and it only takes The >King 10 seconds to say so. This is on a P4-2.4: > >Time Depth Score Positions Moves >0:00 1/3 -3.48 2173 30.gxf8=Q+ Rxf8 31.Nxd1 Bxc1 32.Kxc1 > Qxa3+ 33.Nb2 Nxd5 34.fxg4 >0:00 1/3 -2.15 12809 30.Nf5 f6 31.gxf8=Q+ Kxf8 32.Qxd1 > Bxc1 33.Qxc1 gxf3 34.Rh8+ Kf7 >0:00 1/4 -1.87 22066 30.Nf5 f6 31.Rh8+ Kf7 32.gxf8=Q+ > Rxf8 33.Rh7+ Ke8 34.Qxd1 Bxc1 35.Qxc1 > Nxd5 >0:00 1/5 -1.72 96775 30.Nf5 Nxc3+ 31.Qxc3 f6 32.Rh8+ > Kf7 33.gxf8=Q+ Rxf8 34.Rh7+ Kg8 > 35.Rg7+ Kh8 36.Qxc5 dxc5 37.Bxg5 > fxg5 >0:01 1/6 0.00 280995 30.Nf5 Nxc3+ 31.Ka1 f6 32.Rh8+ > Kf7 33.gxf8=Q+ Rxf8 34.Rh7+ Kg6 > 35.Qh1 Ncxd5 36.Qh5+ Kxf5 37.Qxg4+ > Kg6 38.Qh5+ Kf5 39.Qg4+ >0:10 1/7 Mate15 2029987 30.Nf5 Nxc3+ 31.Ka1 f6 32.Rh8+ > Kf7 33.Rxf8+ Rxf8 34.Qh1 Ncxd5 > 35.Qh5+ Kg8 36.Qh8+ Kf7 37.gxf8=Q+ > Ke6 38.Qe8+ Ne7 39.Qxe7+ Kd5 40.Qf7+ > Kc6 41.Qhe8+ Nd7 42.Qexd7+ Kb6 > 43.Qa7+ Kc6 44.Ne7# >0:12 1/8 Mate14 2611709 30.Nf5 Nxc3+ 31.Ka1 f6 32.Rh8+ > Kf7 33.Rxf8+ Rxf8 34.Qh1 Ncxd5 > 35.Qh5+ Kg8 36.Qh8+ Kf7 37.gxf8=Q+ > Ke6 38.Ng7+ Kd7 39.Qe8+ Kc7 40.Qb8+ > Kc6 41.Qhe8+ Nd7 42.Qec8+ Nc7 43.Qcb7# > >0:19 1/9 Mate13 4289554 30.Nf5 Nxc3+ 31.Ka1 f6 32.Rh8+ > Kf7 33.Rxf8+ Rxf8 34.Qh1 Ncxd5 > 35.Qh5+ Kg8 36.Qh8+ Kf7 37.gxf8=Q+ > Ke6 38.Qe8+ Ne7 39.Qhg8+ Kxf5 40.Qh7+ > Ke6 41.Qexe7+ Kd5 42.Qe4# >0:36 2/10 Mate13 8365367 30.Nf5 Nxc3+ 31.Ka1 f6 32.Rh8+ > Kf7 33.Rxf8+ Rxf8 34.Qh1 Ncxd5 > 35.Qh5+ Kg8 36.Qh8+ Kf7 37.gxf8=Q+ > Ke6 38.Qe8+ Ne7 39.Qhg8+ Kxf5 40.Qh7+ > Ke6 41.Qexe7+ Kd5 42.Qe4# > >But 30...Bh4 is far worse than 30...Nxc3+. The first move leads to a Mate in 5 >(as you found), but the latter makes you have to find 31.Ka1! (which you did in >your analysis below), because 31.Kb2 would lose. Although I suspect that you >would have found it OTB -- you're obviously pretty good! > >>30... Nxc3+ 31. Ka1 f6 32. Rh8+ Kf7 33. Rxf8+ Rxf8 34. Qh1 is too deep. >> >>Cheers >>Mihaly > >Great game! > >jm Thank you John. The King is as amazing as ever. However I still don't understand why played PD 30...Bh4 instantly. Here is the analysis of Pro Deo with Eduard's settings: 8 and a half minutes! 30...Bxc1 31.Rh8# # (#0) Depth: 1 00:00:00 30...Nxc3+ 31.Ka1 -+ (-8.28) Depth: 1 00:00:00 30...Nxc3+ 31.Ka1 -+ (-8.28) Depth: 2 00:00:00 30...Nxc3+ 31.Ka1 Bh4 32.gxf8Q+ Kxf8 33.Qxh4 gxf3 -+ (-3.73) Depth: 3 00:00:01 30...Nxc3+ 31.Qxc3 Bh4 32.gxf8Q+ Rxf8 -+ (-1.81) Depth: 4 00:00:01 30...Bh4 31.gxf8Q+ Rxf8 32.Qxd1 Nxd5 -+ (-2.24) Depth: 4 00:00:01 30...Bh4 31.gxf8Q+ -+ (-2.24) Depth: 5 00:00:01 30...Bh4 31.gxf8Q+ -+ (-2.24) Depth: 6 00:00:01 86kN 30...Bh4 31.gxf8Q+ Rxf8 32.Qxd1 -+ (-2.24) Depth: 7 00:00:01 193kN 30...Bh4 31.gxf8Q+ -+ (-2.24) Depth: 8 00:00:03 380kN 30...Bh4 31.Qxh4 Nxc3+ 32.Ka1 f6 33.gxf8Q+ Kxf8 +- (#4) Depth: 9 00:00:07 2093kN 30...Nxc3+ 31.Qxc3 f6 32.gxf8Q+ Rxf8 33.Qb2 Nxd5 -+ (-1.74) Depth: 9 00:00:22 9719kN 30...Nxc3+ 31.Qxc3 f6 32.gxf8Q+ Kxf8 33.Qd3 Bxc1 = (0.00) Depth: 10 00:00:31 13920kN 30...Nxc3+ 31.Qxc3 f6 32.gxf8Q+ Kxf8 33.Qd3 Bxc1 = (0.00) Depth: 11 00:01:08 29932kN 30...Nxc3+ 31.Ka1 f6 32.Rh8+ Kf7 33.Rxf8+ Rxf8 34.Qh1 Ncxd5 35.Qh5+ Kg8 36.Qh8+ Kf7 37.Qg8+ +- (#13) Depth: 12 00:08:31 250135kN (Szalai, Celeron 1.7 GHz 05.09.2004)
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