Author: Uri Blass
Date: 23:15:52 06/14/02
Go up one level in this thread
On June 14, 2002 at 19:23:40, Jon Dart wrote: >Here are some new positions from Arasan games I've added to my test suite: > >Arasan2.60: Best move f5: > >[D] rn3rk1/pb1p1p1p/1p2pBp1/8/1qPN1P2/8/2QRB2P/4K1R1 w - - > >Arasan2.61: Best move Bf5: > >[D] r1b1r1k1/ppq2p1p/3b2pQ/3pn3/8/2P4P/PPBN1PP1/R1B1R1K1 b - - > >Arasan2.62: Best move f4: > >[D] rn3rk1/pb2b2p/5p2/2p1qNp1/1p2p1Q1/4B3/PPPN1PPP/R4RK1 w - - > >These are all pretty hard for Arasan, although not for some programs. > >Solution times: > > Arasan 5.4 Arasan 6.0 >2.60 f5 378 seconds. 272 seconds >2.61 Bf5 40 seconds 140 seconds >2.62 f4 114 seconds 89 seconds > >on a P4 Xeon 1.8GHz with 64MB hashtables (I have no idea why 6.0 is >slower on the middle test). Movei on p200(128 Mbytes hash) has only problems with the middle test Bf5. It is clearly faster than arasan in 1.f5 and 1.f4 inspite of slower hardware(I did not consider time of clearing the hash tbales but it is not a lot of time even on p200). f5 is an obvious choice for positional reasons: 6 4 599 133980 c2b3 b4c5 b3b5 d7d6 g1g5 c5a3 6 5 1076 245567 f4f5 6 7 1236 281096 f4f5 f8c8 c2b2 b4c5 f5g6 f7g6 6 7 1302 294294 f4f5 f8c8 c2b2 b4c5 f5g6 f7g6 7 15 1664 375306 f4f5 e6f5 d4f5 f8e8 f5d6 e8e6 f6c3 7 15 3982 886864 f4f5 e6f5 d4f5 f8e8 f5d6 e8e6 f6c3 8 8 4910 1082149 f4f5 e6f5 d4f5 f8e8 f5d6 e8e6 f6c3 b4c5 8 8 9035 1974451 f4f5 e6f5 d4f5 f8e8 f5d6 e8e6 f6c3 b4c5 9 13 12633 2747202 f4f5 e6f5 d4f5 f8e8 f5d6 e8e6 c2b2 b4c5 g1g5 9 13 36756 8600498 f4f5 e6f5 d4f5 f8e8 f5d6 e8e6 c2b2 b4c5 g1g5 10 17 45171 10627475 f4f5 e6f5 d4f5 f8e8 c2b2 b4b2 f6b2 b7f3 f5d6 e8e7 The same is for f4 when it can even see some tactics at depth 10. 7 -2 1637 413799 d2c4 e5c7 c4d2 c5c4 f5h6 g8h8 h6f5 c4c3 b2c3 7 -1 2637 681984 f2f4 7 51 2812 717420 f2f4 e4f3 d2f3 e5c7 f5e7 c7e7 g4c4 e7f7 c4f7 f8f7 e3c5 7 51 3268 822320 f2f4 e4f3 d2f3 e5c7 f5e7 c7e7 g4c4 e7f7 c4f7 f8f7 e3c5 8 52 3807 956394 f2f4 e4f3 d2f3 e5c7 g4c4 g8h8 f5e7 b7f3 g2f3 c7e7 e3c5 8 52 7899 1967754 f2f4 e4f3 d2f3 e5c7 g4c4 g8h8 f5e7 b7f3 g2f3 c7e7 e3c5 9 55 9744 2414388 f2f4 e4f3 d2f3 e5c7 g4c4 g8h8 f5e7 b7f3 e7f5 f3c6 e3c5 9 55 18972 4662441 f2f4 e4f3 d2f3 e5c7 g4c4 g8h8 f5e7 b7f3 e7f5 f3c6 e3c5 10 151 36685 8854655 f2f4 e4f3 d2f3 e5c7 g4c4 g8h8 f5e7 c7e7 e3c5 e7c7 c4b5 f8c8 c5b4 b7f3 f1f3 The only not easy position is Bf5 when even after Bf5 it needs time to see that Bxf5 is not good because of Bxf5 Ng4. 8 13 5037 1323344 c2f5 g6f5 h6g5 e5g6 e1e8 a8e8 d2f3 c7e7 g5e7 g6e7 c1h6 f5f4 9 -208 17478 4307642 c2f5 e5g4 e1e8 a8e8 h3g4 e8e1 d2f1 c7c4 f5d3 c4d3 g2g3 d3f1 g1h2 f1f2 9 -207 26826 6681091 c2b3 9 -131 36482 8709784 c2b3 e5g4 e1e8 a8e8 h3g4 e8e1 d2f1 f5d3 g2g3 d6g3 g1g2 d3f1 g2g1 9 -131 44287 10546754 c2b3 e5g4 e1e8 a8e8 h3g4 e8e1 d2f1 f5d3 g2g3 d6g3 g1g2 d3f1 g2g1 Uri
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