Author: Uri Blass
Date: 11:13:36 08/22/03
Go up one level in this thread
On August 22, 2003 at 12:52:23, Tord Romstad wrote: >On August 22, 2003 at 12:12:42, Uri Blass wrote: > >>On August 22, 2003 at 11:56:42, Tord Romstad wrote: >> >>>50 million nodes is a lot. I think most modern programs (even weak ones) >>>should solve this a lot faster, and I'm sure Spector would too if you >>>had continued developing it. >> >>I think that you overestimate other programs. >>I believe that a lot of programs need more than 50M nodes > >Perhaps. But so far, Shredder is the only example we have seen. I can show you easily more examples of engines that need more than 50M nodes and about half of the engines that I try need more than 50M nodes(I tried only engines that I consider as not weak engines). Comet:more than 50M nodes to see the mate New game 2qrr1n1/3b1kp1/2pBpn1p/1p2PP2/p2P4/1BP5/P3Q1PP/4RRK1 w - - 0 1 Analysis by Comet B60: 1.fxe6+ Bxe6 ² (0.63) Depth: 1/9 00:00:00 1.fxe6+ Bxe6 ² (0.63) Depth: 1/9 00:00:00 1.fxe6+ Bxe6 2.Bc2 ² (0.63) Depth: 2/17 00:00:00 1.fxe6+ Bxe6 2.Bc2 g6 3.Be4 ² (0.70) Depth: 3/18 00:00:00 1.exf6 axb3 2.Qh5+ Kxf6 3.Rxe6+ Bxe6 4.fxe6+ Kxe6 ± (1.23) Depth: 3/18 00:00:00 1.exf6 Nxf6 2.Bc2 exf5 ± (1.35) Depth: 3/18 00:00:00 1.exf6 Nxf6 2.fxe6+ Bxe6 3.Bxe6+ Qxe6 4.Be5 +- (1.59) Depth: 4/18 00:00:00 1.exf6 Nxf6 2.fxe6+ Bxe6 3.c4 ± (1.23) Depth: 5/23 00:00:00 160kN 1.exf6 Nxf6 2.fxe6+ Rxe6 3.Bxe6+ Bxe6 4.Rxf6+ Ke8 ± (1.23) Depth: 5/23 00:00:01 299kN 1.exf6 Nxf6 2.fxe6+ Rxe6 3.Bxe6+ Kg6 +- (1.58) Depth: 6/23 00:00:01 301kN 1.exf6 Nxf6 2.fxe6+ Bxe6 3.Qxe6+ Qxe6 4.Bxa4 +- (1.58) Depth: 6/29 00:00:01 464kN 1.exf6 Nxf6 2.fxe6+ Bxe6 3.Qxe6+ Qxe6 4.Bxe6+ Rxe6 5.c4 ± (1.22) Depth: 7/36 00:00:04 1201kN 1.exf6 Nxf6 2.Bc2 exf5 3.Be7 Ng8 ± (1.16) Depth: 7/36 00:00:08 2366kN 1.exf6 Nxf6 2.fxe6+ Bxe6 3.Bxe6+ Rxe6 4.Qxe6+ Kg6 +- (1.51) Depth: 8/36 00:00:11 3419kN 1.exf6 Nxf6 2.fxe6+ Bxe6 3.Bxe6+ Qxe6 4.Qxe6+ Rxe6 5.Rxf6+ gxf6 6.c4 +- (1.51) Depth: 8/36 00:00:15 4422kN 1.exf6 Nxf6 2.fxe6+ Bxe6 3.Bxe6+ Rxe6 4.Qxe6+ Qxe6 5.Rxe6 Kxe6 6.c4 ± (1.15) Depth: 9/36 00:00:33 10427kN 1.Qh5+ Nxh5 2.fxe6+ Kg6 3.Bc2+ Kg5 4.Rf5+ Kg6 5.Rf6+ Kg5 6.Rg6+ Kh4 7.Re4+ Nf4 8.Rxf4+ Kh5 9.Rxg7 Qb8 10.Bxb8 Rxe6 +- (1.86) Depth: 9/38 00:00:55 17605kN 1.Qh5+ Nxh5 2.fxe6+ Kg6 3.Bc2+ Kg5 4.Rf5+ Kg6 5.Rf6+ Kg5 6.Rg6+ Kh4 7.Re4+ Nf4 8.Rxf4+ Kh5 9.Rxg7 Qc7 10.Bxc7 Bxe6 +- (2.57) Depth: 9/39 00:00:56 18358kN 1.Qh5+ Nxh5 2.fxe6+ Kg6 3.Bc2+ Kg5 4.Rf5+ Kg6 5.Rf6+ Kg5 6.Rg6+ Kh4 7.Re4+ Nf4 8.Rxf4+ Kh5 9.Rxg7 Qc7 10.Bxc7 Bxe6 +- (3.28) Depth: 9/39 00:00:58 19290kN 1.Qh5+ Nxh5 2.fxe6+ Kg6 3.Bc2+ Kg5 4.Rf5+ Kg6 5.Rf6+ Kg5 6.Rg6+ Kh4 7.Re4+ Nf4 8.Rxf4+ Kh5 9.Rxg7 Qc7 10.Bxc7 Bxe6 +- (3.99) Depth: 9/39 00:00:59 20089kN 1.Qh5+ Nxh5 2.fxe6+ Kg6 3.Bc2+ Kg5 4.Rf5+ Kg6 5.Rf6+ Kg5 6.Rg6+ Kh4 7.Re4+ Nf4 8.Rxf4+ Kh5 9.Rxg7 Re7 10.Bxe7 Nf6 11.exd7 Qb7 +- (4.70) Depth: 9/39 00:01:07 24208kN 1.Qh5+ Nxh5 2.fxe6+ Kg6 3.Bc2+ Kg5 4.Rf5+ Kg6 5.Rf6+ Kg5 6.Rg6+ Kf4 7.exd7 Rxe5 8.dxc8Q Rxd6 +- (6.41) Depth: 9/39 00:01:17 29405kN 1.Qh5+ Nxh5 2.fxe6+ Kg6 3.Bc2+ Kg5 4.Rf5+ Kg6 5.Rf6+ Kg5 6.Rg6+ Kh4 7.Re4+ Nf4 8.Rxf4+ Kh5 9.g3 b4 10.exd7 Qc7 11.Bxc7 Rf8 +- (9.12) Depth: 9/39 00:01:30 35964kN 1.Qh5+ Nxh5 2.fxe6+ Kg6 3.Bc2+ Kg5 4.Rf5+ Kg6 5.Rf6+ Kg5 6.Rg6+ Kf4 7.exd7 Rxe5 8.dxc8Q Rd7 +- (12.83) Depth: 9/39 00:01:39 41007kN 1.Qh5+ Nxh5 2.fxe6+ Kg6 3.Bc2+ Kg5 4.Rf5+ Kg6 5.Rf6+ Kg5 6.Rg6+ Kf4 7.exd7 Re7 8.dxc8Q Rdd7 +- (17.54) Depth: 9/39 00:01:49 47392kN 1.Qh5+ Nxh5 2.fxe6+ Kg6 3.Bc2+ Kg5 4.Rf5+ Kh4 5.Be7+ Kg4 6.h3+ Kg3 7.exd7 b4 8.dxc8Q Rd5 9.Qxe8 bxc3 10.Rxh5 Nxe7 11.Qxe7 Rxd4 12.Qxg7+ +- (23.25) Depth: 9/39 00:02:00 54003kN 1.Qh5+ Nxh5 2.fxe6+ Kg6 3.Bc2+ Kg5 4.Rf5+ Kh4 5.Be7+ g5 6.Re4+ Nf4 7.Rfxf4+ Kh5 8.Rh4+ Kg6 9.Ref4+ Kg7 10.Rf7+ Kh8 11.Bxg5 Rf8 12.Rxh6+ Nxh6 13.Bf6+ Kg8 14.Rg7+ Kh8 15.Rh7+ Kg8 16.Rh8# +- (#15) Depth: 9/39 00:02:10 60560kN (Blass, Tel-Aviv 22.08.2003) Crafty needs more than 50M nodes New game 2qrr1n1/3b1kp1/2pBpn1p/1p2PP2/p2P4/1BP5/P3Q1PP/4RRK1 w - - 0 1 Analysis by Crafty 19.01: 1.Bxa4 bxa4 2.exf6 exf5 µ (-1.17) Depth: 1/17 00:00:00 1.Bxa4 bxa4 2.exf6 exf5 µ (-1.17) Depth: 2/17 00:00:00 1.fxe6+ µ (-0.77) Depth: 2/17 00:00:00 1.fxe6+ Bxe6 2.Qh5+ g6 µ (-0.77) Depth: 2/17 00:00:00 1.fxe6+ Bxe6 2.exf6 Rxd6 -+ (-1.75) Depth: 3/17 00:00:00 1.Bxa4 bxa4 2.exf6 exf5 µ (-1.17) Depth: 3/17 00:00:00 1.exf6 ³ (-0.37) Depth: 3/17 00:00:00 1.exf6 axb3 2.Qh5+ Kxf6 3.fxe6# = (-0.02) Depth: 3/17 00:00:00 1.exf6 axb3 2.Qh5+ Kxf6 3.fxe6# = (-0.02) Depth: 4/17 00:00:00 1.exf6 axb3 2.Qh5+ Kxf6 3.fxe6# ² (0.38) Depth: 5/18 00:00:00 1.exf6 Nxf6 2.Bxe6+ Bxe6 3.fxe6+ Qxe6 4.Be5 ± (1.14) Depth: 5/18 00:00:00 1.exf6 Nxf6 2.Bxe6+ Bxe6 3.fxe6+ Rxe6 4.Qh5+ Kg8 ± (0.74) Depth: 6/19 00:00:00 72kN 1.exf6 Nxf6 2.Bxe6+ Bxe6 3.fxe6+ Rxe6 4.Be5 Kg8 5.Qf2 ± (0.73) Depth: 7/20 00:00:01 222kN 1.exf6 Nxf6 2.fxe6+ Bxe6 3.Bxe6+ Rxe6 4.Be5 Kg8 5.Qf2 Rf8 6.Re3 ² (0.61) Depth: 8/24 00:00:03 704kN 1.exf6 Nxf6 2.Bc2 exf5 3.Qf3 Be6 4.Qf4 Kg8 5.Re3 ² (0.54) Depth: 9/24 00:00:06 1903kN 1.exf6 Nxf6 2.Bxe6+ Bxe6 3.fxe6+ Rxe6 ² (0.46) Depth: 10/28 00:00:19 7516kN 1.exf6 Nxf6 2.Bxe6+ Bxe6 3.fxe6+ Rxe6 4.Be5 Kg8 5.Rf4 Rde8 6.Qf2 Nd7 ² (0.43) Depth: 11/29 00:00:52 24004kN 1.exf6 Nxf6 2.Bxe6+ Bxe6 3.fxe6+ Rxe6 4.Be5 Kg8 5.Rf4 Rde8 6.Qf2 Nd7 ± (0.83) Depth: 12/34 00:02:23 69657kN (Blass, Tel-Aviv 22.08.2003) Sjeng12.13 needs more than 50M nodes New game 2qrr1n1/3b1kp1/2pBpn1p/1p2PP2/p2P4/1BP5/P3Q1PP/4RRK1 w - - 0 1 Analysis by Sjeng 12.13: 1.exf6 axb3 = (0.11) Depth: 2 00:00:00 1.exf6 ² (0.61) Depth: 3/17 00:00:00 1.exf6 ² (0.60) Depth: 3/17 00:00:00 1.exf6 axb3 2.Qh5+ Kxf6 3.fxe6# ± (1.13) Depth: 3/17 00:00:00 1.exf6 axb3 2.Qh5+ Kxf6 3.fxe6# ± (1.13) Depth: 3/17 00:00:00 1.exf6 Nxf6 2.Bc2 Kg8 3.fxe6 Bxe6 ± (1.33) Depth: 4/17 00:00:00 1.exf6 Nxf6 2.Bc2 Kg8 3.fxe6 Bxe6 ± (1.33) Depth: 4/17 00:00:00 1.exf6 ± (0.83) Depth: 5/22 00:00:01 1.exf6 Nxf6 2.fxe6+ Bxe6 3.Bxe6+ Rxe6 4.Be5 Kg8 5.Rf5 Rde8 ² (0.37) Depth: 5/26 00:00:02 1.fxe6+ Bxe6 2.Bc2 Rxd6 3.exd6 Bc4 4.Qh5+ Kf8 5.d7 Qxd7 ² (0.54) Depth: 5/26 00:00:04 1.fxe6+ Bxe6 2.Bc2 Rxd6 3.exd6 Bc4 4.Qh5+ Kf8 5.d7 Qxd7 ² (0.54) Depth: 5/26 00:00:04 1.fxe6+ Bxe6 2.Bc2 Rxd6 3.exd6 Bc4 4.Qh5+ Kf8 5.Rxe8+ Qxe8 6.Qc5 Qe3+ 7.Rf2 Qxc3 8.Qxc6 Qxd4 ² (0.66) Depth: 6/26 00:00:08 3023kN 1.fxe6+ Bxe6 2.Bc2 Rxd6 3.exd6 Bc4 4.Qh5+ Kf8 5.Rxe8+ Qxe8 6.Qc5 Qe3+ 7.Rf2 Qxc3 8.Qxc6 Qxd4 ² (0.66) Depth: 6/28 00:00:11 4433kN 1.fxe6+ Bxe6 2.Bc2 g6 3.Bc5 Bf5 4.c4 Qa6 5.cxb5 Qxb5 ± (0.84) Depth: 7/28 00:00:24 10232kN 1.fxe6+ Bxe6 2.Bc2 g6 3.Bc5 Bf5 4.c4 Qa6 5.cxb5 Qxb5 ± (0.84) Depth: 7/31 00:00:37 16056kN 1.fxe6+ Bxe6 2.Bc2 g6 3.Bc5 Bf5 4.Bxf5 gxf5 5.Qc2 Nd5 6.Rxf5+ Ke6 ± (0.74) Depth: 8/31 00:01:17 33511kN 1.exf6 ± (1.34) Depth: 8/33 00:01:44 46050kN 1.exf6 ± (1.33) Depth: 8/33 00:01:55 52158kN (Blass, Tel-Aviv 22.08.2003) Junior7 needs more than 50M nodes New game 2qrr1n1/3b1kp1/2pBpn1p/1p2PP2/p2P4/1BP5/P3Q1PP/4RRK1 w - - 0 1 Analysis by Junior 7: 1.Bxa4 bxa4 2.exf6 Nxf6 = (-0.20) Depth: 3 00:00:00 1.exf6 Nxf6 2.fxe6+ Bxe6 3.Qh5+ Kg8 ± (1.26) Depth: 3 00:00:00 3kN 1.exf6 Nxf6 2.fxe6+ Bxe6 3.Bxe6+ Rxe6 4.Be5 Kg8 ± (0.99) Depth: 6 00:00:00 15kN 1.exf6 Nxf6 2.fxe6+ Bxe6 3.Qh5+ Kg8 4.Rxe6 Rxe6 5.Rxf6 axb3 ² (0.40) Depth: 9 00:00:00 255kN 1.fxe6+ Bxe6 2.Qh5+ g6 3.Rxf6+ Nxf6 4.Qf3 axb3 5.Qxf6+ Kg8 6.Qxg6+ Kh8 7.Qxh6+ Kg8 8.Qg6+ Kh8 9.axb3 ² (0.59) Depth: 9 00:00:01 657kN 1.fxe6+! ± (0.89) Depth: 12 00:00:03 2537kN 1.fxe6+ Bxe6 2.exf6 gxf6 3.Qh5+ Kg7 4.Bxe6 Rxe6 5.Qg4+ Kf7 6.Rxe6 Qxe6 7.Qxe6+ Kxe6 8.Bc5 Kd7 ± (1.31) Depth: 12 00:00:09 7298kN 1.fxe6+ Bxe6 2.exf6 gxf6 3.Bxe6+ Rxe6 4.Qh5+ Kg7 5.Qg4+ Kf7 6.Bc5 Rxe1 7.Qh5+ Kg7 8.Rxe1 ± (1.28) Depth: 14 00:00:42 30857kN 1.exf6! +- (1.61) Depth: 14 00:00:46 33739kN 1.exf6 Nxf6 2.fxe6+ Bxe6 3.Qh5+ Kg8 4.Rxf6 Bxb3 5.Be7 Rf8 6.Rxf8+ Rxf8 7.axb3 Rf5 8.Qd1 a3 +- (2.72) Depth: 14 00:01:04 46648kN 1.Qh5+! +- (2.73) Depth: 14 00:01:10 50055kN 1.Qh5+ Nxh5 2.fxe6+ Kg6 3.Bc2+ Kg5 4.Rf5+ Kg6 5.Rf6+ Kg5 6.Rg6+ Kh4 7.Re4+ Nf4 8.Rxf4+ Kh5 9.g3 Bxe6 10.Rh4# +- (#10) Depth: 14 00:01:14 52619kN 1.Qh5+ Nxh5 2.fxe6+ Kg6 3.Bc2+ Kg5 4.Rf5+ Kg6 5.Rf6+ Kg5 6.Rg6+ Kh4 7.Re4+ Nf4 8.Rxf4+ Kh5 9.g3 Bxe6 10.Rh4# +- (#10) Depth: 14 00:01:16 53356kN (Blass, Tel-Aviv 22.08.2003) > >I still think the majority of modern programs should find this in >5M nodes or less, but I could be wrong. My own program is not very >good at finding mates (nor any other type of tactics), and I would >expect most other programs to be faster. > >>Maybe you do not use enough pruning so you can solve it fast. > >I never prune checks; this seems too dangerous. > >Perhaps Shredder is using an asymmetric search, and prunes some checking >moves at even plies when it considers itself to have a winning advantage? >What happens if you make the move Qh5+ and let Shredder analyse the >position? I don't have Shredder, but my guess is that it will find >the mate very quickly if you first execute the right first move. In this case it needs depth 11 to see the mate New game 2qrr1n1/3b1kp1/2pBpn1p/1p2PP1Q/p2P4/1BP5/P5PP/4RRK1 b - - 0 1 Analysis by Shredder 7.04: 1...Nxh5 2.fxe6+ Kg6 3.Bc2+ Kg5 4.Rf5+ Kg4 5.Rf4+ Nxf4 6.h3+ Nxh3+ 7.gxh3+ Kxh3 ± (1.20) Depth: 1/1 00:00:00 1...Nxh5 2.fxe6+ Kg6 3.Bc2+ Kg5 4.Rf5+ Kg4 5.Rf4+ Nxf4 6.h3+ Nxh3+ 7.gxh3+ Kxh3 ² (0.70) Depth: 1/13 00:00:00 1...Nxh5 2.fxe6+ Kg6 3.exd7 Qxd7 -+ (-7.09) Depth: 1/13 00:00:00 1...Nxh5 2.fxe6+ Kg6 3.exd7 Qxd7 -+ (-7.09) Depth: 2/13 00:00:00 1...Nxh5 2.fxe6+ Kg6 3.exd7 Qxd7 -+ (-7.09) Depth: 3/13 00:00:00 1...Nxh5 2.fxe6+ Kg6 3.exd7 Qxd7 -+ (-7.09) Depth: 4/13 00:00:00 1...Nxh5 2.fxe6+ Kg6 3.Bc2+ Kg5 4.Rf5+ Kh4 5.exd7 Qxd7 -+ (-6.78) Depth: 5/15 00:00:00 1...Nxh5 2.fxe6+ Kg6 3.Bc2+ Kg5 4.Rf5+ Kh4 5.Re4+ Nf4 6.Rfxf4+ Kh5 -+ (-5.33) Depth: 5/16 00:00:00 1...Nxh5 2.fxe6+ Kg6 3.Bc2+ Kg5 4.Be7+ Nxe7 5.Rf5+ Nxf5 6.h4+ Kxh4 -+ (-5.33) Depth: 5/17 00:00:00 1...Nxh5 2.fxe6+ Kg6 3.Bc2+ Kg5 4.Rf5+ Kg4 5.h3+ Kg3 6.Re3+ Kh4 7.Re4+ Nf4 8.Rexf4+ Kg3 -+ (-4.80) Depth: 6/17 00:00:00 3kN 1...Nxh5 2.fxe6+ Kg6 3.Bc2+ Kg5 4.Rf5+ Kg4 5.h3+ Kg3 6.Re3+ Kh4 7.Re4+ Nf4 8.Rexf4+ Kg3 9.exd7 Qxd7 -+ (-3.72) Depth: 6/17 00:00:00 3kN 1...Nxh5 2.fxe6+ Kg6 3.Bc2+ Kg5 4.Rf5+ Kg6 5.Rf4+ Kg5 6.Rf5+ Kg6 7.Rf4+ Kg5 8.Rf5+ Kg6 = (0.05) Depth: 6/17 00:00:00 6kN 1...Nxh5 2.fxe6+ Kg6 3.Bc2+ Kg5 4.Rf5+ Kg6 5.Rf4+ Kg5 6.Rf5+ Kg6 7.Rf4+ Kg5 8.Rf5+ Kg6 = (0.05) Depth: 7/21 00:00:00 14kN 1...Nxh5 2.fxe6+ Kg6 3.Bc2+ Kg5 4.Rf5+ Kg6 5.Rf4+ Kg5 6.Rf5+ Kg6 7.Rf4+ Kg5 8.Rf5+ Kg6 = (0.05) Depth: 8/21 00:00:00 31kN 1...Nxh5 2.fxe6+ Kg6 3.Bc2+ Kg5 4.Rf5+ Kg6 5.Rf4+ Kg5 6.Rf5+ Kg6 7.Rf4+ Kg5 8.Rf5+ Kg6 = (0.05) Depth: 9/26 00:00:00 117kN 1...Nxh5 2.fxe6+ Kg6 3.Bc2+ Kg5 4.Rf5+ Kg6 5.Rf6+ Kg5 6.h4+ Kxh4 7.Re4+ Nf4 8.Rexf4+ Kg5 9.R4f5+ Kh4 10.Rf4+ Kg5 11.R4f5+ Kh4 12.Rf4+ Kg5 = (0.09) Depth: 10/27 00:00:01 322kN 1...Nxh5 2.fxe6+ Kg6 3.Bc2+ Kg5 4.Rf5+ Kg6 5.Rf6+ Kg5 6.Rg6+ Kh4 7.Re4+ Nf4 8.Rxf4+ Kh5 9.Rxg7 Rf8 10.Bd1# ² (0.34) Depth: 11/28 00:00:02 370kN 1...Nxh5 2.fxe6+ Kg6 3.Bc2+ Kg5 4.Rf5+ Kg6 5.Rf6+ Kg5 6.Rg6+ Kh4 7.Re4+ Nf4 8.Rxf4+ Kh5 9.Rxg7 Ne7 10.Bd1# ± (0.84) Depth: 11/28 00:00:02 378kN 1...Nxh5 2.fxe6+ Kg6 3.Bc2+ Kg5 4.Rf5+ Kg6 5.Rf6+ Kg5 6.Rg6+ Kh4 7.Re4+ Nf4 8.Rxf4+ Kh5 9.g3 Bxe6 10.Rh4# +- (#9) Depth: 11/28 00:00:02 409kN 1...Nxh5 2.fxe6+ Kg6 3.Bc2+ Kg5 4.Rf5+ Kg6 5.Rf6+ Kg5 6.Rg6+ Kh4 7.Re4+ Nf4 8.Rxf4+ Kh5 9.g3 Bxe6 10.Rh4# +- (#9) Depth: 12/28 00:00:02 409kN 1...Nxh5 2.fxe6+ Kg6 3.Bc2+ Kg5 4.Rf5+ Kg6 5.Rf6+ Kg5 6.Rg6+ Kh4 7.Re4+ Nf4 8.Rxf4+ Kh5 9.g3 Bxe6 10.Rh4# +- (#9) Depth: 13/28 00:00:02 409kN 1...Nxh5 2.fxe6+ Kg6 3.Bc2+ Kg5 4.Rf5+ Kg6 5.Rf6+ Kg5 6.Rg6+ Kh4 7.Re4+ Nf4 8.Rxf4+ Kh5 9.g3 Bxe6 10.Rh4# +- (#9) Depth: 14/28 00:00:02 413kN 1...Nxh5 2.fxe6+ Kg6 3.Bc2+ Kg5 4.Rf5+ Kg6 5.Rf6+ Kg5 6.Rg6+ Kh4 7.Re4+ Nf4 8.Rxf4+ Kh5 9.g3 Bxe6 10.Rh4# +- (#9) Depth: 15/28 00:00:02 430kN 1...Nxh5 2.fxe6+ Kg6 3.Bc2+ Kg5 4.Rf5+ Kg6 5.Rf6+ Kg5 6.Rg6+ Kh4 7.Re4+ Nf4 8.Rxf4+ Kh5 9.g3 Bxe6 10.Rh4# +- (#9) Depth: 16/28 00:00:02 459kN 1...Nxh5 2.fxe6+ Kg6 3.Bc2+ Kg5 4.Rf5+ Kg6 5.Rf6+ Kg5 6.Rg6+ Kh4 7.Re4+ Nf4 8.Rxf4+ Kh5 9.g3 Bxe6 10.Rh4# +- (#9) Depth: 17/28 00:00:03 478kN 1...Nxh5 2.fxe6+ Kg6 3.Bc2+ Kg5 4.Rf5+ Kg6 5.Rf6+ Kg5 6.Rg6+ Kh4 7.Re4+ Nf4 8.Rxf4+ Kh5 9.g3 Bxe6 10.Rh4# +- (#9) Depth: 18/28 00:00:03 515kN 1...Nxh5 2.fxe6+ Kg6 3.Bc2+ Kg5 4.Rf5+ Kg6 5.Rf6+ Kg5 6.Rg6+ Kh4 7.Re4+ Nf4 8.Rxf4+ Kh5 9.g3 Bxe6 10.Rh4# +- (#9) Depth: 19/28 00:00:03 564kN 1...Nxh5 2.fxe6+ Kg6 3.Bc2+ Kg5 4.Rf5+ Kg6 5.Rf6+ Kg5 6.Rg6+ Kh4 7.Re4+ Nf4 8.Rxf4+ Kh5 9.g3 Bxe6 10.Rh4# +- (#9) Depth: 20/28 00:00:04 685kN 1...Nxh5 2.fxe6+ Kg6 3.Bc2+ Kg5 4.Rf5+ Kg6 5.Rf6+ Kg5 6.Rg6+ Kh4 7.Re4+ Nf4 8.Rxf4+ Kh5 9.g3 Bxe6 10.Rh4# +- (#9) Depth: 21/29 00:00:05 876kN 1...Nxh5 2.fxe6+ Kg6 3.Bc2+ Kg5 4.Rf5+ Kg6 5.Rf6+ Kg5 6.Rg6+ Kh4 7.Re4+ Nf4 8.Rxf4+ Kh5 9.g3 Bxe6 10.Rh4# +- (#9) Depth: 22/29 00:00:07 1103kN 1...Nxh5 2.fxe6+ Kg6 3.Bc2+ Kg5 4.Rf5+ Kg6 5.Rf6+ Kg5 6.Rg6+ Kh4 7.Re4+ Nf4 8.Rxf4+ Kh5 9.g3 Bxe6 10.Rh4# +- (#9) Depth: 23/29 00:00:09 1535kN 1...Nxh5 2.fxe6+ Kg6 3.Bc2+ Kg5 4.Rf5+ Kg6 5.Rf6+ Kg5 6.Rg6+ Kh4 7.Re4+ Nf4 8.Rxf4+ Kh5 9.g3 Bxe6 10.Rh4# +- (#9) Depth: 24/29 00:00:12 2211kN (Blass, Tel-Aviv 22.08.2003) Uri
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