Author: Uri Blass
Date: 10:01:26 10/21/03
Go up one level in this thread
On October 21, 2003 at 12:41:51, Uri Blass wrote: >On October 21, 2003 at 12:34:20, Uri Blass wrote: > >>On October 21, 2003 at 12:28:33, Uri Blass wrote: >> >>>On October 21, 2003 at 11:53:02, Tord Romstad wrote: >>> >>>>I don't run my engine through WAC very often, but before releasing a new >>>>version (which I will do within a couple of days) I run the whole suite as >>>>a sanity test. This time, the following position made me worried: >>>> >>>>[D]8/8/2Kp4/3P1B2/2P2k2/5p2/8/8 w - - bm Bc8; id "WAC146"; >>>> >>>>Previously, my program had no problems with this position. The new >>>>version, which is the first one to include tablebase support, prefers >>>>Bd3 instead of Bc8. At ply 21, the score is +12 for white. When I >>>>disable tablebases, the program plays Bc8. >>>> >>>>Does Bd3 also win, or should I look for yet another bug? >>> >>>Bd3 is also winning and is one of the solutions >>> >>>8/8/2Kp4/3P1B2/2P2k2/5p2/8/8 w - - bm Bc8 Bd3 Bh3; id "WAC.146"; >>> >>> >>> >>>> >>>>One of the hardest positions in WAC for my engine is number 163: >>>> >>>>[D]5rk1/2p4p/2p4r/3P4/4p1b1/1Q2NqPp/PP3P1K/R4R2 b - - bm Qg2+; id "WAC163"; >>>> >>>>On a Pentium IV 2.4 GHz, I need 11 plies and 1m53s to find the winning move. >>> >>>Congratulations >>>Your program is better than Shredder7.04 that cannot find it even after 13 plies >>> >>>Analysis on A1000 >>>New game >>>[D]5rk1/2p4p/2p4r/3P4/4p1b1/1Q2NqPp/PP3P1K/R4R2 b - - 0 1 >>> >>>Analysis by Shredder 7.04: >>> >>>1...cxd5 2.Nxg4 Qxg4 3.Qxd5+ Kh8 >>> ³ (-0.26) Depth: 1/5 00:00:00 >>>1...cxd5 2.Nxg4 Qxg4 3.Qxd5+ Kh8 >>> ³ (-0.26) Depth: 2/5 00:00:00 >>>1...cxd5 2.Qxd5+ Kh8 3.Qe5+ Rff6 4.Qxc7 >>> = (0.04) Depth: 3/8 00:00:00 >>>1...cxd5 2.Qxd5+ Be6 3.Qe5 >>> = (0.12) Depth: 3/10 00:00:00 >>>1...cxd5 2.Qxd5+ Be6 3.Qe5 c6 >>> = (0.07) Depth: 4/10 00:00:00 >>>1...cxd5 2.Qxd5+ Be6 3.Qd1 Rf4 4.gxf4 Qxf2+ 5.Rxf2 >>> ² (0.32) Depth: 5/17 00:00:00 >>>1...cxd5 2.Qxd5+ Be6 3.Qd1 Rb8 4.Qxf3 exf3 5.Rfb1 >>> ² (0.45) Depth: 5/17 00:00:00 >>>1...cxd5 2.Qxd5+ Be6 3.Qd1 Qxd1 4.Nxd1 Bd5 >>> ² (0.48) Depth: 6/18 00:00:00 37kN >>>1...cxd5 2.Qxd5+ Be6 3.Qd1 Qf6 4.a4 Qxb2 5.Ng4 Rg6 >>> ² (0.51) Depth: 7/18 00:00:01 111kN >>>1...Rd6 2.Rad1 Kh8 3.dxc6 Rxd1 4.Qg8+ Kxg8 >>> ² (0.50) Depth: 7/18 00:00:01 145kN >>>1...Rd6 2.Rad1 Kh8 3.Qc4 Bd7 4.Qc3+ Rff6 5.a3 cxd5 6.Nxd5 >>> ² (0.47) Depth: 7/18 00:00:01 161kN >>>1...Rd6 2.Rad1 Kh8 3.Qb7 Rxd5 4.Nxd5 cxd5 5.Rg1 >>> ² (0.48) Depth: 8/23 00:00:02 322kN >>>1...Rd6 2.Rad1 Kh8 3.a4 cxd5 4.Rxd5 Qe2 5.Qc3+ Kg8 6.Rg5+ Rg6 7.Qb3+ Kh8 >>> ² (0.60) Depth: 9/23 00:00:04 664kN >>>1...cxd5 2.Qxd5+ Be6 3.Qd1 Qf6 4.Qc2 Rg6 5.a4 Qe5 6.Qc3 Qxc3 >>> ² (0.59) Depth: 9/26 00:00:05 747kN >>>1...cxd5 2.Qxd5+ Be6 3.Qd1 Qf6 4.Qc2 Rb8 5.b3 Qe5 6.Rad1 Rg6 >>> ² (0.46) Depth: 9/26 00:00:06 918kN >>>1...cxd5 2.Qxd5+ Be6 3.Qd1 Qxd1 4.Nxd1 Rhf6 5.Re1 Bg4 6.a4 Bxd1 7.Raxd1 Rxf2+ >>>8.Kxh3 Re8 >>> ² (0.35) Depth: 10/28 00:00:10 1523kN >>>1...cxd5 2.Qxd5+ Be6 3.Qd1 Rhf6 4.Rc1 Bxa2 5.Rxc7 Qxd1 6.Nxd1 Bb3 7.Kxh3 Bxd1 >>>8.Rxd1 Rxf2 >>> = (0.17) Depth: 11/32 00:00:20 3257kN >>>1...cxd5 2.Qxd5+ Be6 3.Qd1 Rhf6 4.a4 Qxd1 5.Nxd1 e3 6.Nxe3 Rxf2+ 7.Rxf2 Rxf2+ >>>8.Kg1 Rxb2 >>> ² (0.29) Depth: 12/37 00:00:38 6038kN >>>1...cxd5 2.Qxd5+ Be6 3.Qd1 Rhf6 4.a4 Qxd1 5.Nxd1 e3 6.Kg1 Bc4 7.Nxe3 >>> = (0.04) Depth: 13/37 00:01:26 13252kN >>>1...cxd5 2.Qxd5+ Be6 3.Qb5 Bc8 4.Qd5+ Qf7 5.Qxf7+ Rxf7 6.Kh1 Ba6 7.Ng4 Kg7 >>>8.Nxh6 >>> = (0.03) Depth: 13/38 00:03:27 32739kN >>> >>>(Blass, Tel-Aviv 21.10.2003) >>> >>> >>> >>> >>> >>> >>>>The problem is to find the line 1... Qg2+ 2. Nxg2 hxg2+ 3. Kxg2 Bf3+ 4. Qxf3 >>>>exf3+ 5. Kg1 Rf5! followed by Rfh5. Without nullmove pruning, this position >>>>is solved within a few seconds. >>>> >>>>This is rather annoying, as I have lost more games than I would like on >>>>the ICC because of missing similar tactics. Are there any inexpensive >>>>tricks to help me solve this kind of positions more quickly? >>>> >>>>Tord >>> >>>Yes >>> >>>Movei has no problem to solve it after 7 plies because it can see a threat >>>thanks to smaller king safety evaluation(it does not see a mate threat but the >>>threat that it see is enough not to prune). >>> >>>Uri >> >>I can add that shredder finally finds the solution after 14 plies. >> >>New game >>5rk1/2p4p/2p4r/3P4/4p1b1/1Q2NqPp/PP3P1K/R4R2 b - - 0 1 >> >>Analysis by Shredder 7.04: >> >> = (0.00) Depth: 14/41 00:09:27 88548kN >>1...Qg2+ 2.Nxg2 hxg2+ 3.Kg1 gxf1Q+ 4.Rxf1 Bf3 5.d6+ Kg7 6.Qc3+ Rff6 7.Qb3 >> = (-0.01) Depth: 14/41 00:10:51 102352kN >>1...Qg2+ 2.Nxg2 hxg2+ 3.Kg1 gxf1Q+ 4.Rxf1 Bf3 5.d6+ Kg7 6.Qc3+ Rff6 7.Qb3 cxd6 >>8.Qxf3 exf3 >> ³ (-0.36) Depth: 14/41 00:10:54 102800kN >>1...Qg2+ 2.Nxg2 hxg2+ 3.Kxg2 Bf3+ 4.Qxf3 exf3+ 5.Kg1 Rf5 6.Rfe1 Rfh5 7.Re8+ Kf7 >>8.Re7+ Kxe7 9.Re1+ Kf6 10.Ra1 Rh1# >> -+ (-#11) Depth: 14/41 00:11:35 110687kN >>1...Qg2+ 2.Nxg2 hxg2+ 3.Kxg2 Bf3+ 4.Qxf3 exf3+ 5.Kg1 Rf5 6.Rfe1 Rfh5 7.Re8+ Kf7 >>8.Re7+ Kxe7 9.Re1+ Kf6 10.Ra1 Rh1# >> -+ (-#11) Depth: 15/41 00:11:36 110692kN >>1...Qg2+ 2.Nxg2 hxg2+ 3.Kxg2 Bf3+ 4.Qxf3 exf3+ 5.Kg1 Rf5 6.Rfe1 Rfh5 7.Re8+ Kf7 >>8.Re7+ Kxe7 9.Re1+ Kf6 10.Ra1 Rh1# >> -+ (-#11) Depth: 16/41 00:11:37 110702kN >>1...Qg2+ 2.Nxg2 hxg2+ 3.Kxg2 Bf3+ 4.Qxf3 exf3+ 5.Kg1 Rf5 6.Rfe1 Rfh5 7.Re8+ Kf7 >>8.Re7+ Kxe7 9.Re1+ Kf6 10.Ra1 Rh1# >> -+ (-#11) Depth: 17/41 00:11:38 110731kN >>1...Qg2+ 2.Nxg2 hxg2+ 3.Kxg2 Bf3+ 4.Qxf3 exf3+ 5.Kg1 Rf5 6.Rfe1 Rfh5 7.Re8+ Kf7 >>8.Re7+ Kxe7 9.Re1+ Kf6 10.Ra1 Rh1# >> -+ (-#11) Depth: 18/41 00:11:39 110860kN >>1...Qg2+ 2.Nxg2 hxg2+ 3.Kxg2 Bf3+ 4.Qxf3 exf3+ 5.Kg1 Rf5 6.Rfe1 Rfh5 7.Re8+ Kf7 >>8.Re7+ Kxe7 9.Re1+ Kf6 10.Ra1 Rh1# >> -+ (-#11) Depth: 19/41 00:11:40 111014kN >>1...Qg2+ 2.Nxg2 hxg2+ 3.Kxg2 Bf3+ 4.Qxf3 exf3+ 5.Kg1 Rf5 6.Rfe1 Rfh5 7.Re8+ Kf7 >>8.Re7+ Kxe7 9.Re1+ Kf6 10.Ra1 Rh1# >> -+ (-#11) Depth: 20/41 00:11:41 111227kN >>1...Qg2+ 2.Nxg2 hxg2+ 3.Kxg2 Bf3+ 4.Qxf3 exf3+ 5.Kg1 Rf5 6.Rfe1 Rfh5 7.Re8+ Kf7 >>8.Re7+ Kxe7 9.Re1+ Kf6 10.Ra1 Rh1# >> -+ (-#11) Depth: 21/41 00:11:44 111626kN >> >>(Blass, Tel-Aviv 21.10.2003) >> >>Uri > >You are also better than Fritz8.0.0.8 that needs 13 plies > >New game >5rk1/2p4p/2p4r/3P4/4p1b1/1Q2NqPp/PP3P1K/R4R2 b - - 0 1 > >Analysis by Fritz 8: > >1...cxd5 2.Qxd5+ Be6 3.Qd1 Qf7 4.Ng4 Bxg4 5.Qxg4+ Qg6 6.Qxg6+ hxg6 7.a4 > ³ (-0.38) Depth: 7/23 00:00:00 155kN >1...cxd5 2.Qxd5+ Be6 3.Qd1 Qf7 4.Ng4 Bxg4 5.Qxg4+ Qg6 6.Qd7 c6 7.a4 > ³ (-0.41) Depth: 8/28 00:00:00 367kN >1...cxd5 2.Qxd5+ Be6 3.Qd1 Qf7 4.Ng4 Bxg4 5.Qxg4+ Qg6 6.Qxg6+ hxg6 7.Rae1 Rb8 >8.b3 > ³ (-0.38) Depth: 9/27 00:00:02 672kN >1...cxd5 2.Qxd5+ Be6 3.Qd1 Qf7 4.Ng4 Bxg4 5.Qxg4+ Qg6 6.Qxg6+ hxg6 7.Rae1 Rb8 >8.b3 Re8 > ³ (-0.34) Depth: 10/33 00:00:07 2540kN >1...cxd5 2.Qxd5+ Be6 3.Qd4 Rhf6 4.Rac1 Bxa2 5.Rxc7 Be6 6.b4 Rb8 7.Qc5 h6 > ³ (-0.56) Depth: 11/42 00:00:24 9556kN >1...cxd5 2.Qxd5+ Be6 3.Qd4 Rhf6 4.Rac1 Bxa2 5.Rxc7 Bb3 6.Rb7 Qe2 7.Kh1 Bc2 8.b4 > ³ (-0.47) Depth: 12/36 00:00:47 19380kN >1...cxd5 2.Qxd5+ Be6 3.Qd4 Rhf6 4.Rac1 Bxa2 5.Rxc7 Bb3 6.Re7 Qe2 7.Kh1 Qd3 >8.Rxe4 > ³ (-0.44) Depth: 13/42 00:01:46 45145kN >1...Qg2+! > ³ (-0.47) Depth: 13/42 00:02:17 58859kN >1...Qg2+! > ³ (-0.63) Depth: 13/42 00:02:17 58935kN >1...Qg2+! > µ (-0.94) Depth: 13/42 00:02:18 59020kN >1...Qg2+! > -+ (-1.56) Depth: 13/42 00:02:18 59277kN >1...Qg2+ 2.Nxg2 hxg2+ 3.Kxg2 Bf3+ 4.Qxf3 exf3+ 5.Kg1 Rf5 6.Rae1 Rfh5 > -+ (-8.13) Depth: 13/42 00:02:21 60647kN >1...Qg2+! > -+ (-8.41) Depth: 14/30 00:02:23 61529kN >1...Qg2+! > -+ (-8.69) Depth: 14/30 00:02:24 61861kN >1...Qg2+! > -+ (-9.25) Depth: 14/30 00:02:25 62256kN >1...Qg2+ 2.Nxg2 hxg2+ 3.Kxg2 Bf3+ 4.Qxf3 exf3+ 5.Kg1 Rf5 6.Rfe1 Rfh5 > -+ (-#12) Depth: 14/40 00:02:29 63884kN >1...Qg2+ 2.Nxg2 hxg2+ 3.Kxg2 Bf3+ 4.Qxf3 exf3+ 5.Kg1 Rf5 6.Rfe1 Rfh5 > -+ (-#12) Depth: 14/40 00:02:35 66551kN > >(Blass, Tel-Aviv 21.10.2003) Analysis by more programs. Your result is not so bad relative to other programs New game 5rk1/2p4p/2p4r/3P4/4p1b1/1Q2NqPp/PP3P1K/R4R2 b - - 0 1 Analysis by Junior 7: 1...Qxe3 2.Qxe3 Rhf6 +- (4.08) Depth: 3 00:00:00 1...Bc8 2.d6+ ³ (-0.26) Depth: 3 00:00:00 1...Bd7 2.d6+ ³ (-0.28) Depth: 3 00:00:00 1...cxd5 2.Qxd5+ Be6 3.Qg5+ Rg6 ³ (-0.31) Depth: 3 00:00:00 1...cxd5 2.Qxd5+ Be6 3.Qg5+ Rg6 4.Qe7 Rgf6 = (-0.15) Depth: 6 00:00:00 12kN 1...cxd5! ³ (-0.45) Depth: 9 00:00:00 93kN 1...cxd5 2.Qxd5+ Be6 3.Qc5 Rg6 4.a4 Qe2 ³ (-0.50) Depth: 9 00:00:00 215kN 1...cxd5 2.Qxd5+ Be6 3.Qd1 Rhf6 4.Qxf3 Rxf3 5.Kg1 h2+ 6.Kg2 h1Q+ 7.Kxh1 Rxf2 8.Rxf2 Rxf2 ³ (-0.33) Depth: 12 00:00:04 3339kN 1...cxd5 2.Qxd5+ Be6 3.Qb5 Qf7 4.Rac1 Rf6 5.Qg5+ Qg6 6.Qxg6+ hxg6 7.Rc2 c5 8.a4 g5 ³ (-0.26) Depth: 15 00:00:32 24300kN 1...c5 2.a4 Rb6 3.Qc3 Bc8 4.a5 Rbf6 5.Qxc5 Ba6 ³ (-0.49) Depth: 15 00:00:41 30091kN 1...c5 2.a4 Rb6 3.Qa2 c4 4.Rae1 Rb3 5.Qa1 h5 6.Nxc4 ³ (-0.53) Depth: 17 00:01:42 69027kN 1...Qg2+! µ (-0.79) Depth: 17 00:02:36 107141kN 1...Qg2+ 2.Nxg2 hxg2+ 3.Kxg2 Bf3+ 4.Qxf3 exf3+ 5.Kg1 Rf5 6.Rfe1 Rfh5 7.Re8+ Kf7 8.Re7+ Kxe7 9.Re1+ Kd8 10.Re8+ Kxe8 -+ (-#11) Depth: 17 00:02:45 112451kN (Blass, Tel-Aviv 21.10.2003) New game 5rk1/2p4p/2p4r/3P4/4p1b1/1Q2NqPp/PP3P1K/R4R2 b - - 0 1 Analysis by Quark: 1...cxd5 2.Qxd5+ Be6 3.Qe5 Qe2 = (-0.17) Depth: 4 00:00:00 1...cxd5 2.Qxd5+ Be6 3.Qe5 Qe2 4.Qg5+ = (-0.19) Depth: 5 00:00:00 1...cxd5 2.Qxd5+ Be6 3.Qe5 Qe2 4.Qg5+ = (-0.19) Depth: 5 00:00:01 1...cxd5 2.Qxd5+ Be6 3.Qg5+ Rg6 4.Qb5 Rgf6 5.Qg5+ ³ (-0.35) Depth: 6 00:00:01 76kN 1...cxd5 2.Qxd5+ Be6 3.Qg5+ Rg6 4.Qb5 Rgf6 5.Qg5+ ³ (-0.35) Depth: 6 00:00:01 123kN 1...cxd5 2.Qxd5+ Be6 3.Qb5 Qh5 4.Qxh5 Rxh5 5.a4 ³ (-0.31) Depth: 7 00:00:01 266kN 1...cxd5 2.Qxd5+ Be6 3.Qb5 Qh5 4.Qxh5 Rxh5 5.a4 ³ (-0.31) Depth: 7 00:00:02 398kN 1...cxd5 2.Qxd5+ Be6 3.Qg5+ Rg6 4.Qc5 c6 5.b3 Qe2 6.Nc4 ³ (-0.37) Depth: 8 00:00:03 623kN 1...cxd5 2.Qxd5+ Be6 3.Qg5+ Rg6 4.Qc5 c6 5.b3 Qe2 6.Nc4 ³ (-0.37) Depth: 8 00:00:04 979kN 1...cxd5 2.Qxd5+ Be6 3.Qg5+ Rg6 4.Qc5 Qf7 5.Rac1 Bxa2 6.Qxc7 Qe6 ³ (-0.43) Depth: 9 00:00:05 1502kN 1...cxd5 2.Qxd5+ Be6 3.Qg5+ Rg6 4.Qc5 Qf7 5.Rac1 Bxa2 6.Qxc7 Qe6 ³ (-0.43) Depth: 9 00:00:07 2282kN 1...cxd5 2.Qxd5+ Be6 3.Qb5 Qf7 4.Qg5+ Rg6 5.Qh4 Qg7 6.Qxe4 Qxb2 7.Nc2 Bxa2 ³ (-0.42) Depth: 10 00:00:16 4915kN 1...cxd5 2.Qxd5+ Be6 3.Qb5 Qf7 4.Qg5+ Rg6 5.Qh4 Qg7 6.Qxe4 Qxb2 7.Nc2 Bxa2 ³ (-0.42) Depth: 10 00:00:29 9461kN 1...cxd5 2.Qxd5+ Be6 3.Qb5 c6 4.Qa6 Qh5 5.Rad1 Rhf6 6.Rd2 Qe5 7.Qa7 ³ (-0.56) Depth: 11 00:01:11 22321kN 1...cxd5 2.Qxd5+ Be6 3.Qb5 c6 4.Qa6 Qh5 5.Rad1 Rhf6 6.Rd2 Qe5 7.Qa7 ³ (-0.56) Depth: 11 00:01:30 28784kN 1...cxd5 2.Qxd5+ Be6 3.Qb5 c6 4.Qxc6 Qe2 5.Kg1 Qxb2 6.Qxe4 h2+ 7.Kh1 Rxf2 8.Qa8+ ³ (-0.45) Depth: 12 00:02:46 52597kN 1...Qg2+ ³ (-0.46) Depth: 12 00:03:46 72180kN 1...Qg2+ -+ (-1.46) Depth: 12 00:03:48 72732kN 1...Qg2+ -+ (-5.46) Depth: 12 00:03:50 73343kN 1...Qg2+ 2.Nxg2 hxg2+ 3.Kxg2 Bf3+ 4.Qxf3 exf3+ 5.Kg1 Rf5 6.Rfe1 Rfh5 7.Re8+ Kf7 8.Re7+ Kxe7 9.Re1+ Kd8 10.Re8+ Kxe8 11.dxc6 Rh1# -+ (-319.78) Depth: 12 00:04:04 78250kN 1...Qg2+ 2.Nxg2 hxg2+ 3.Kxg2 Bf3+ 4.Qxf3 exf3+ 5.Kg1 Rf5 6.Rfe1 Rfh5 7.Re8+ Kf7 8.Re7+ Kxe7 9.Re1+ Kd8 10.Re8+ Kxe8 11.dxc6 Rh1# -+ (-319.78) Depth: 12 00:04:08 79837kN (Blass, Tel-Aviv 21.10.2003) New game 5rk1/2p4p/2p4r/3P4/4p1b1/1Q2NqPp/PP3P1K/R4R2 b - - 0 1 Analysis by Crafty 19.01: 1...c5 2.Nxg4 Qxg4 ² (0.29) Depth: 1/9 00:00:00 1...c5 2.Qc4 ² (0.31) Depth: 2/9 00:00:00 1...c5 2.Qc4 Qe2 3.Qxe2 Bxe2 ± (1.05) Depth: 3/9 00:00:00 1...cxd5 2.Qxd5+ Be6 3.Qe5 = (0.24) Depth: 3/9 00:00:00 1...cxd5 2.Qxd5+ Be6 3.Qe5 c6 = (0.25) Depth: 4/14 00:00:00 1...cxd5 2.Qxd5+ Rf7 3.Qd1 Rd7 4.Qxf3 Bxf3 ² (0.44) Depth: 5/14 00:00:00 1...cxd5 2.Qxd5+ Rf7 3.Qd8+ Kg7 4.Qd4+ Rhf6 5.Nxg4 Qxg4 ² (0.38) Depth: 6/16 00:00:00 64kN 1...cxd5 2.Qxd5+ Be6 3.Qg5+ Rg6 4.Qe5 Qe2 5.Qxe4 Rxf2+ 6.Rxf2 Qxf2+ = (0.19) Depth: 7/19 00:00:01 215kN 1...cxd5 2.Qxd5+ Be6 3.Qd1 Qxd1 4.Nxd1 Kf7 5.a4 Bg4 ² (0.44) Depth: 8/20 00:00:02 465kN 1...Rf7 2.dxc6 Rxc6 3.a4 Rg6 4.Qc4 Bf5 5.Nxf5 Qxf5 ² (0.35) Depth: 8/20 00:00:03 742kN 1...Rf7 2.dxc6 Rxc6 3.a4 Rb6 4.Qc2 Rbf6 5.a5 h5 ² (0.39) Depth: 9/22 00:00:04 1346kN 1...Qg2+ 2.Nxg2 hxg2+ 3.Kxg2 Bf3+ 4.Qxf3 exf3+ 5.Kg1 cxd5 6.Rfe1 Rd6 7.Re7 Rf7 8.Rae1 d4 ² (0.31) Depth: 9/22 00:00:05 1791kN 1...Qg2+ 2.Nxg2 hxg2+ 3.Kxg2 Bf3+ 4.Qxf3 exf3+ 5.Kg1 cxd5 6.Rfe1 d4 7.Re7 Rf7 8.Re8+ Kg7 9.a4 ² (0.48) Depth: 10/24 00:00:07 2664kN 1...Rf7 2.dxc6 Rxc6 3.a4 Rd6 4.Qc2 Be6 5.a5 Ra6 6.Nc4 ² (0.41) Depth: 10/24 00:00:11 4259kN 1...Rf7 2.dxc6 Rxc6 3.a4 Rd6 4.Qb8+ Rf8 5.Qb4 Be6 6.a5 Ra6 7.Qe7 ² (0.42) Depth: 11/25 00:00:24 10283kN 1...cxd5 2.Qxd5+ Be6 3.Qd1 Qxd1 4.Nxd1 Rhf6 5.Rc1 Bg4 6.Rxc7 Bxd1 7.Rxd1 Rxf2+ = (0.19) Depth: 11/25 00:00:37 16135kN 1...cxd5 2.Qxd5+ Be6 3.Qc5 Qe2 4.Nd5 Qf3 5.Ne3 = (0.00) Depth: 12/26 00:01:34 42626kN (Blass, Tel-Aviv 21.10.2003) New game 5rk1/2p4p/2p4r/3P4/4p1b1/1Q2NqPp/PP3P1K/R4R2 b - - 0 1 Analysis by Comet B60: 1...Qxe3 2.fxe3 +- (7.79) Depth: 1/7 00:00:00 1...cxd5 2.Qxd5+ Be6 ³ (-0.67) Depth: 1/8 00:00:00 1...cxd5 2.Qxd5+ Be6 ³ (-0.65) Depth: 2/12 00:00:00 1...cxd5 2.Qxd5+ Kh8 3.Qc5 = (0.05) Depth: 3/12 00:00:00 1...c5 2.Qb5 Rb8 ³ (-0.29) Depth: 3/12 00:00:00 1...c5 2.Qc3 Rb8 = (-0.05) Depth: 3/13 00:00:00 1...c5 2.Qa3 Rb8 3.Rac1 Qd1 ² (0.31) Depth: 4/18 00:00:00 1...cxd5 2.Qxd5+ Be6 3.Qg5+ Rg6 4.Qe7 = (-0.05) Depth: 4/18 00:00:00 1...cxd5 2.Qxd5+ Be6 3.Qg5+ Rg6 4.Qe5 Rb8 5.Rac1 = (-0.25) Depth: 5/18 00:00:00 100kN 1...cxd5 2.Qxd5+ Be6 3.Qg5+ = (-0.25) Depth: 6/21 00:00:01 232kN 1...cxd5 2.Qxd5+ Be6 3.Qg5+ Rg6 4.Qe5 Qe2 5.Kg1 Rgf6 ³ (-0.40) Depth: 7/22 00:00:02 556kN 1...cxd5 2.Qxd5+ Be6 3.Qd1 Qxd1 4.Nxd1 c5 5.Re1 Bd5 6.Rc1 ³ (-0.31) Depth: 8/23 00:00:06 1557kN 1...cxd5 2.Qxd5+ Be6 3.Qb5 Qh5 4.Qxh5 Rxh5 5.Rac1 Bxa2 6.Rxc7 Rf7 ³ (-0.29) Depth: 9/29 00:00:21 5622kN 1...Qg2+ 2.Nxg2 hxg2+ 3.Kxg2 Bf3+ 4.Qxf3 exf3+ 5.Kg1 Rf5 6.Rfc1 Rfh5 7.Kf1 cxd5 8.b4 Re6 ³ (-0.31) Depth: 9/29 00:00:38 13953kN 1...Qg2+ 2.Nxg2 hxg2+ 3.Kxg2 Bf3+ 4.Qxf3 exf3+ 5.Kg1 Rf5 6.d6 cxd6 7.a4 Rfh5 8.g4 Rg5 9.Rfd1 ³ (-0.66) Depth: 10/29 00:00:58 28519kN 1...Qg2+ 2.Nxg2 hxg2+ 3.Kxg2 Bf3+ 4.Qxf3 exf3+ 5.Kg1 Rf5 6.Rae1 Rfh5 7.Re5 Rxe5 8.dxc6 µ (-1.37) Depth: 10/32 00:01:19 45415kN (Blass, Tel-Aviv 21.10.2003) New game 5rk1/2p4p/2p4r/3P4/4p1b1/1Q2NqPp/PP3P1K/R4R2 b - - 0 1 Analysis by Goliath Light 1.5: 1...c5 2.Qc4 Rb6 3.Nxg4 Qxg4 = (-0.25) Depth: 6/16 00:00:00 1...c5 2.Qc3 Rb6 3.Qe5 ³ (-0.36) Depth: 6/16 00:00:00 42kN 1...c5 2.Qc3 Rb6 3.Qe5 ³ (-0.36) Depth: 7/17 00:00:00 69kN 1...c5 2.Qc3 Rb6 3.Qe5 = (-0.06) Depth: 7/19 00:00:00 152kN 1...c5 2.Qa3 Rb6 3.Rac1 h5 4.Rxc5 = (0.07) Depth: 7/19 00:00:00 162kN 1...cxd5 = (-0.04) Depth: 7/24 00:00:00 253kN 1...cxd5 2.Qxd5+ Be6 3.Qg5+ Rg6 4.Qc5 Qf6 5.Nd5 Qg5 6.Ne7+ Kf7 7.Qxg5 Rxg5 ³ (-0.30) Depth: 7/34 00:00:01 1511kN 1...cxd5 2.Qxd5+ Be6 3.Qg5+ Rg6 4.Qc5 Qf6 5.Nd5 Qg5 6.Ne7+ Kf7 7.Qxg5 Rxg5 ³ (-0.30) Depth: 8/34 00:00:02 1615kN 1...cxd5 2.Qxd5+ Be6 3.Qg5+ Rg6 4.Qc5 Qf7 5.Qc2 Rf6 6.Qxe4 Rxf2+ 7.Rxf2 Qxf2+ 8.Kh1 = (-0.20) Depth: 8/34 00:00:04 3436kN 1...cxd5 2.Qxd5+ Be6 3.Qg5+ Rg6 4.Qc5 Qf7 5.Qc2 Rf6 6.Qxe4 Rxf2+ 7.Rxf2 Qxf2+ 8.Kh1 = (-0.20) Depth: 9/34 00:00:05 4268kN 1...cxd5 2.Qxd5+ Be6 3.Qg5+ Rg6 4.Qb5 c6 5.Qxc6 Bxa2 6.Qc2 Bd5 7.Ra7 Rc6 8.Qd2 ³ (-0.39) Depth: 9/34 00:00:10 10188kN 1...cxd5 2.Qxd5+ Be6 3.Qg5+ Rg6 4.Qb5 c6 5.Qxc6 Bxa2 6.Qc2 Bd5 7.Ra7 Rc6 8.Qd2 ³ (-0.39) Depth: 10/34 00:00:11 11572kN 1...cxd5 2.Qxd5+ Be6 3.Qd1 Rhf6 4.Rc1 Qxd1 5.Nxd1 e3 6.Rc2 exf2 7.Rfxf2 Bg4 8.Rcd2 = (-0.22) Depth: 10/37 00:00:22 23585kN 1...Qg2+ ³ (-0.33) Depth: 10/37 00:00:27 30411kN 1...Qg2+ 2.Nxg2 hxg2+ 3.Kxg2 Bf3+ 4.Qxf3 -+ (-4.64) Depth: 10/37 00:00:29 32047kN 1...Qg2+ 2.Nxg2 hxg2+ 3.Kxg2 Bf3+ 4.Qxf3 -+ (-4.64) Depth: 11/37 00:00:29 32694kN 1...Qg2+ 2.Nxg2 hxg2+ 3.Kxg2 Bf3+ 4.Qxf3 -+ (-4.94) Depth: 11/37 00:00:29 32969kN 1...Qg2+ 2.Nxg2 hxg2+ 3.Kxg2 Bf3+ 4.Qxf3 -+ (-5.74) Depth: 11/37 00:00:29 33012kN 1...Qg2+ 2.Nxg2 hxg2+ 3.Kxg2 Bf3+ 4.Qxf3 exf3+ 5.Kg1 Rf5 6.Rfe1 Rfh5 7.Re8+ Kf7 8.Re7+ Kxe7 9.d6+ cxd6 10.Re1+ Kd7 11.Re7+ Kxe7 12.g4 -+ (-12.61) Depth: 11/37 00:00:30 33862kN 1...Qg2+ 2.Nxg2 hxg2+ 3.Kxg2 Bf3+ 4.Qxf3 exf3+ 5.Kg1 Rf5 6.Rfe1 Rfh5 7.Re8+ Kf7 8.Re7+ Kxe7 9.d6+ cxd6 10.Re1+ Kd7 11.Re7+ Kxe7 12.g4 -+ (-12.61) Depth: 12/37 00:00:32 37196kN 1...Qg2+ 2.Nxg2 hxg2+ 3.Kxg2 Bf3+ 4.Qxf3 exf3+ 5.Kg1 Rf5 6.Rfe1 Rfh5 7.Re8+ Kf7 8.Re7+ Kxe7 9.d6+ cxd6 10.Re1+ Kd7 11.Re7+ Kxe7 12.g4 -+ (-12.94) Depth: 12/37 00:00:32 37891kN 1...Qg2+ 2.Nxg2 hxg2+ 3.Kxg2 Bf3+ 4.Qxf3 exf3+ 5.Kg1 Rf5 6.Rfe1 Rfh5 7.Re8+ Kf7 8.Re7+ Kxe7 9.d6+ cxd6 10.Re1+ Kd7 11.Re7+ Kxe7 12.g4 -+ (-13.77) Depth: 12/37 00:00:32 37903kN 1...Qg2+ 2.Nxg2 hxg2+ 3.Kxg2 Bf3+ 4.Qxf3 exf3+ 5.Kg1 Rf5 6.Rfe1 Rfh5 7.Re8+ Kf7 8.Re7+ Kxe7 9.Re1+ Kd8 10.Re8+ Kxe8 11.dxc6 Rh1# -+ (-#11) Depth: 12/37 00:00:33 41352kN (Blass, Tel-Aviv 21.10.2003) New game 5rk1/2p4p/2p4r/3P4/4p1b1/1Q2NqPp/PP3P1K/R4R2 b - - 0 1 Analysis by Hiarcs 7.32: 1...Rhf6 2.Nxg4 Qxg4 3.dxc6+ Kh8 = (-0.23) Depth: 1 00:00:00 1...Rhf6 2.dxc6+ Be6 = (-0.10) Depth: 2/10 00:00:00 1...Kh8 2.Qc3+ Rff6 = (-0.18) Depth: 2/10 00:00:00 1...cxd5 2.Qxd5+ ³ (-0.64) Depth: 2/13 00:00:00 1...cxd5 2.Qxd5+ ³ (-0.64) Depth: 2/13 00:00:00 1...cxd5 2.Qxd5+ Be6 3.Qe5 ³ (-0.46) Depth: 3/13 00:00:00 1...cxd5 2.Qxd5+ Be6 3.Qc6 Qe2 4.Qc2 Qxc2 5.Nxc2 ³ (-0.31) Depth: 4/13 00:00:00 1...cxd5 2.Qxd5+ ³ (-0.56) Depth: 5/19 00:00:00 23kN 1...cxd5 2.Qxd5+ Be6 3.Qc5 Rhf6 4.Qg5+ Rg6 ³ (-0.58) Depth: 5/21 00:00:00 34kN 1...cxd5 2.Qxd5+ Be6 3.Qc5 ³ (-0.58) Depth: 6/21 00:00:00 50kN 1...cxd5 2.Qxd5+ Be6 3.Qd1 Qxd1 4.Nxd1 Rhf6 ³ (-0.66) Depth: 7/23 00:00:04 428kN 1...cxd5 2.Qxd5+ ³ (-0.41) Depth: 8/25 00:00:14 1377kN 1...cxd5 2.Qxd5+ Be6 3.Qb5 Rh5 4.Qc6 Bg4 5.Qc3 ³ (-0.41) Depth: 8/27 00:00:17 1605kN 1...cxd5 2.Qxd5+ Be6 3.Qd1 Qxd1 4.Nxd1 Rhf6 5.b3 e3 6.Nxe3 Rxf2+ 7.Rxf2 Rxf2+ 8.Kg1 ³ (-0.53) Depth: 9/27 00:01:05 6121kN 1...Qg2+ 2.Nxg2 ³ (-0.66) Depth: 9/29 00:01:40 9514kN 1...Qg2+ 2.Nxg2 hxg2+ 3.Kxg2 Bf3+ 4.Qxf3 exf3+ 5.Kg1 Rf5 -+ (-4.31) Depth: 9/29 00:01:42 9791kN 1...Qg2+ 2.Nxg2 -+ (-4.56) Depth: 10/29 00:01:43 9869kN 1...Qg2+ 2.Nxg2 hxg2+ 3.Kxg2 Bf3+ -+ (-4.57) Depth: 10/29 00:01:44 9892kN 1...Qg2+ 2.Nxg2 -+ (-4.82) Depth: 11/30 00:01:49 10621kN 1...Qg2+ 2.Nxg2 hxg2+ 3.Kxg2 Bf3+ 4.Qxf3 exf3+ 5.Kg1 Rf5 6.Rfe1 Rfh5 7.Re8+ Kf7 8.Re7+ Kxe7 9.Re1+ Kf7 10.Re7+ Kxe7 11.d6+ cxd6 12.b4 Rh1# -+ (-#12) Depth: 11/30 00:01:49 10622kN 1...Qg2+ 2.Nxg2 hxg2+ 3.Kxg2 Bf3+ 4.Qxf3 exf3+ 5.Kg1 Rf5 6.Rfe1 Rfh5 7.Re8+ Kf7 8.Re7+ Kxe7 9.Re1+ Kf7 10.Re7+ Kxe7 11.d6+ cxd6 12.b4 Rh1# -+ (-#12) Depth: 11/30 00:01:50 10776kN (Blass, Tel-Aviv 21.10.2003) New game 5rk1/2p4p/2p4r/3P4/4p1b1/1Q2NqPp/PP3P1K/R4R2 b - - 0 1 Analysis by Pharaon 2.62: 1...cxd5 2.Qxd5+ Be6 3.Qd1 Qxd1 4.Nxd1 Kg7 ³ (-0.44) Depth: 5/15 00:00:00 1...cxd5 2.Qxd5+ Be6 3.Qd1 Qf7 4.Kh1 Rf6 ³ (-0.33) Depth: 6/15 00:00:00 83kN 1...cxd5 2.Qxd5+ Be6 3.Qd1 Qxd1 4.Nxd1 Bc4 5.Re1 Bd3 = (-0.24) Depth: 7/15 00:00:02 286kN 1...cxd5 2.Qxd5+ Be6 3.Qd1 Qxd1 4.Nxd1 Rhf6 5.Rc1 Bg4 6.f4 = (-0.08) Depth: 8/15 00:00:04 780kN 1...cxd5 2.Qxd5+ Be6 3.Qd1 Qxd1 4.Nxd1 Rhf6 5.Rc1 e3 6.Rc2 exf2 7.Nxf2 Rf3 = (-0.14) Depth: 9/15 00:00:21 3628kN 1...c5 = (-0.14) Depth: 9/15 00:00:32 5550kN 1...cxd5 2.Qxd5+ Be6 3.Qd1 Qxd1 4.Nxd1 Kg7 5.a4 Rf3 6.a5 = (-0.24) Depth: 10/15 00:01:08 11648kN (Blass, Tel-Aviv 21.10.2003)
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