Author: Heiner Marxen
Date: 13:20:22 01/19/02
Go up one level in this thread
On January 19, 2002 at 03:50:40, Matthias Gemuh wrote: > >How long does your program take? >Yace, Goliath Light, Nimzo, Comet and CM8000 need only seconds !! >What of Shredder, Tigers, Junior, Hiarcs and Fritz? > >[D]5r2/r3Npkp/3pn1p1/qbnNp2P/1p2P3/5P2/PP1QB1P1/1KR4R w - - 0 1 > >HyLogicChess needs 51 minutes :( on an Athlon 1.4 GHz, 32 MB Hash. >Looks like I must go optimizing extensions again. > >[1] (0.90) 1.Bxb5 (00h:00m:00s) >[2] (0.91) 1.h6 Kh8 2.Bxb5 (00h:00m:00s) >[3] (0.91) 1.h6 Kh8 2.Bxb5 Qxb5 (00h:00m:00s) >[4] (1.30) 1.h6 Kh8 2.Bxb5 Qxb5 3.Rhd1 (00h:00m:00s) >[5] (0.77) 1.b3 Bxe2 2.Qxe2 Raa8 3.g3 (00h:00m:01s) >[6] (-0.54) 1.h6 Kh8 2.Nxb4 Bxe2 3.Qxe2 Rxe7 4.Nc6 Nd4 (00h:00m:12s) >[7] (0.24) 1.b3 Nxb3 (00h:00m:32s) >[8] (0.90) 1.Bc4 Nxe4 2.h6 Kh8 3.fxe4 Bxc4 4.Nxb4 d5 5.exd5 (00h:01m:07s) >[9] (0.66) 1.Nxb4 Bxe2 2.Qxe2 Rxe7 3.Nd5 Rd7 4.b4 Nd4 5.bxa5 (00h:02m:38s) >[10] (2.03) 1.Bc4 gxh5 2.Qxb4 Qxb4 3.Nf5 Kg8 4.Nxb4 Bxc4 5.Rxc4 Rd8 >(00h:10m:26s) >[11] (6.39) 1.Bc4 Kh8 2.Qh6 (00h:33m:53s) >[12] (+Mate in 10) 1.Qh6 Kxh6 2.hxg6 Kg5 3.Rh5 Kxh5 4.f4 Bxe2 5.Nf6 Kh6 6.Rh1 >Bh5 7.Rxh5 Kg7 8.Ne8 Rxe8 9.Rxh7 Kf6 10.Rxf7 (00h:51m:14s) > >Regards, >Matthias. This one is surprisingly easy for Chest: 4 minutes on Athlon 1500+ with 128MB hash finds Qh6+ to be the unique key for mate in 10: PV: Qh6+ Kxh6 hxg6+ Kg5 Rh5+ Kxh5 f4+ Bxe2 Nf6+ Kh6 Rh1+ Bh5 Rxh5+ Kg7 Ne8+ Rxe8 Rxh7+ Kf6 Rxf7# Seems like black has enough active material to cut down the EBF to fairly below 6 (per move, not per ply): # 4 0.02s [ 2.00] 2kN [ 6.72] 1.00 380- 0 # 5 0.09s [ 4.50] 8kN [ 3.82] 1.18 1675- 0 # 6 0.62s [ 6.89] 61kN [ 7.20] 1.36 12269- 0 # 7 2.17s [ 3.50] 231kN [ 3.82] 2.01 45365- 0 # 8 9.59s [ 4.42] 1138kN [ 4.92] 2.56 221053- 0 # 9 43.53s [ 4.54] 5394kN [ 4.74] 3.04 1009781- 155 # 10 241.47s [ 5.55] 30335kN [ 5.62] 3.32 5394124- 2204107 Cheers, Heiner
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