Author: Jim Monaghan
Date: 18:13:32 11/13/02
Go up one level in this thread
>>Latest Movei on AMD1000 Mhz scored better than Crafty on 450 Mhz based on the >>results. >> >>Movei solved 224 out of 360 in 10 seconds per move and I am responsible for some >>noise by using the internet and writing something in word at part of the time Hi Uri, That's an excellent result (62.22% = IQ elo of 2311)! Little Movei is a tactical monster. >>summery of movei's results >> >>Sec Solved Total >>---- ------ ------ >> 1 152 152 >> 2 25 177 >> 3 15 192 >> 4 11 203 >> 5 7 210 >> 6 5 215 >> 7 3 218 >> 8 0 218 >> 9 5 223 >> 10 1 224 >>Id: IQ.956 >>[D]2qr1r2/p2n1ppk/1p2p2p/5b2/2PP2NQ/1B4R1/P4PPP/R5K1 w - - 0 1 >>Bm: Bc2 >> >>Hard one >>More than 7 minutes only to fail high when it does not know if the fail high is >>correct fail high. >> >>This move is a move that I am going to prune in a game but I guess that movei is >>smarter than me. >> >>At the time of writing these lines latest movei still did not solve the fail >>high. >> >>depth=12 +0.28 a1d1 c8c7 h4e7 d8e8 e7b4 f5g4 g3g4 f7f5 b3c2 h7g8 g4g6 d7f6 >>Nodes: 49462753 NPS: 166244 >>Time: 00:04:57.53 >> >>depth=12 +0.29 b3c2 >>Nodes: 73988995 NPS: 167866 >>Time: 00:07:20.76 >> >>Uri > >I did not look at the analysis but movei solved the fail high few minutes ago >and analysis later seems to go fast. >I understand now that the idea of Bc2 is to let Rh3 later and the way to think >about it for humans should be first to think about Rh3 and after seeing that the >bishop can take the rook to think how to get the bishop out of f5. Exactly right. Here is Shredder 6.0 11.01 0:17 +0.33 1.Rc1 Qc7 2.Ne3 Bg6 3.Bc2 Bxc2 4.Rxc2 Nf6 5.f3 Kh8 6.Re2 (4.595.334) 262.6 11.02 0:18 +0.34++ 1.Re1 Qc6 (4.775.282) 261.9 11.02 0:37 +0.34 1.Re1 Qc7 2.Nxh6 gxh6 3.Qxh6+ Kxh6 4.f3 Qc6 5.Rh3+ Bxh3 6.Rxe6+ fxe6 (9.771.612) 264.0 11.17 1:16 +0.35++ 1.Rh3 Bxg4 2.Qxg4 Nf6 3.Qf4 Qc6 4.Re3 Nh5 5.Qe5 f6 6.Bc2+ (21.170.616) 276.7 11.17 1:23 +0.42 1.Rh3 Bxg4 2.Qxg4 Nf6 3.Qf4 Qc6 4.Re3 Kg8 5.f3 b5 6.c5 a5 (23.063.661) 276.6 12.01 1:54 +0.42 1.Rh3 Bxg4 2.Qxg4 Nf6 3.Qf4 Kg8 4.Re1 Rfe8 5.Re5 Nd7 6.Reh5 e5 (30.951.536) 269.1 12.03 2:35 +0.43++ 1.Rc1 Qc7 2.Ne3 Bg6 3.Bc2 Bxc2 4.Rxc2 Nf6 5.f3 Kh8 6.Re2 a6 (42.119.642) 270.8 12.03 3:03 +0.44 1.Rc1 Qc6 2.Ne3 Bg6 3.Bc2 Bxc2 4.Rxc2 Nf6 5.f3 a6 6.Rxg7+ (49.526.088) 270.0 12.20 5:59 +0.45++ 1.Bc2 Qxc4 2.Nxh6 gxh6 3.Rh3 Kg8 4.Qxh6 Qxd4 5.Rg3+ Bg6 6.Bxg6 Qxa1+ 7.Bb1+ (101.945.636) 283.4 12.20 6:57 +0.80++ 1.Bc2 Qxc4 2.Nxh6 gxh6 3.Rh3 Kg8 4.Qxh6 Qxd4 5.Rg3+ Bg6 6.Bxg6 Qxf2+ 7.Kxf2 fxg6+ 8.Qxf8+ Rxf8+ 9.Rf3 Nb8 (120.325.265) 288.0 best move: Bb3-c2 time: 18:43.576 min n/s: 311.490 CPU 96.4% nodes: 349.974.086 >depth=13 +2.24 b3c2 f8h8 g4h6 g7h6 h4h5 d7e5 d4e5 d8f8 g3h3 h7g8 c2f5 e6f5 h3g3 >g8h7 a1d1 >Nodes: 286405465 NPS: 165674 >Time: 00:28:48.72 > >depth=14 +2.46 b3c2 f8h8 g4h6 g7h6 h4h5 d7e5 d4e5 d8f8 g3h3 h7g8 c2f5 e6f5 h3g3 >g8h7 a1d1 f5f4 >Nodes: 332814871 NPS: 165382 >Time: 00:33:32.39 > >I also checked if I can blame the new pruning for not finding >Bc2 > >Here is analysis of previous version(without the special pruning) > >depth=10 +0.34 a1c1 c8c6 c1e1 f8e8 g4e3 d7f6 e3f5 e6f5 g3e3 e8e3 f2e3 >Nodes: 35128776 NPS: 160368 >Time: 00:03:39.05 > >depth=11 +0.31 a1d1 >Nodes: 65801863 NPS: 159508 >Time: 00:06:52.53 > >depth=11 +0.36 a1d1 f7f6 h4h5 f5g6 h5b5 e6e5 d4e5 a7a6 b5b4 f6e5 g4e3 >Nodes: 79342912 NPS: 159294 >Time: 00:08:18.09 > >depth=11 +0.37 b3c2 >Nodes: 91050402 NPS: 160015 >Time: 00:09:29.01 > >depth=11 +0.50 b3c2 f8h8 h4e7 h8f8 c2f5 e6f5 g4e5 f5f4 g3c3 h7g8 e5d7 d8d7 e7e4 >Nodes: 109364352 NPS: 160924 >Time: 00:11:19.60 > > >The old version can find Bc2 at depth 11 but it needs more time to see the fail >high. > >On the other hand it needs less time to solve the fail high. Hmmm ... the older version seems better on this position. >Next position that was not solved. > >[D]1k1r4/ppq2p2/8/2pPb1r1/2P1Q1B1/6P1/PP3PK1/R4R2 b - - 0 1 > >This seems to be also a positional problem because after f5 Bxf5 Bxg3 Bg4 there >is no forced win that I can see. Engine: Shredder 6 13.01 4:51 +0.94 1...f5 2.Bxf5 Bxg3 3.Bg4 Bd6 4.f3 Bh2 5.Rh1 Qg3+ 6.Kf1 Rf8 7.Re1 a6 8.Re2 Rxg4 (72.166.790) 247.2 best move: f7-f5 time: 12:42.706 min n/s: 199.794 CPU 63.7% nodes: 152.384.451 Even though Black is down two pawns, he has a lot of pressure on the dark squares (opposite coloured bishops always favour the attacker) and it's difficult to see how White can improve his position. Does Black steadily make progress? 1... f5 2. Bxf5 Bxg3 3. Bg4 Bd6 4. f3 Bh2 5. Qe1 Rdg8 6. Rd1 Qh7 -+ looks good for Black. Hmmm ... I can see why you would want to call this a "positional" problem. It's not 100% clear. In the game White blundered: 1... f5 2. Bxf5 Bxg3 3. Rfe1? Bxf2+! 4. Kxf2 Qh2+ and it was over quickly. Cheers, Jim >latest movei changes it's mind at depth 11 from the right solution to anather >move. > >depth=11 -0.85 d8g8 >Nodes: 20428106 NPS: 158874 >Time: 00:02:08.58 >depth=11 -0.79 d8g8 a1e1 c7d6 f2f4 g5g4 e4e5 g4g3 g2f2 d6e5 f4e5 g3g2 f2e3 g8g3 >e3f4 g3g4 f4f3 g4g3 f3e4 g2b2 f1f7 b2a2 >Nodes: 26315464 NPS: 158136 >Time: 00:02:46.41 > > >Uri
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