Author: Heiner Marxen
Date: 19:02:32 11/02/01
Go up one level in this thread
On November 02, 2001 at 18:29:21, leonid wrote: >On November 02, 2001 at 17:20:27, Paul wrote: > >>On November 02, 2001 at 17:05:48, Angrim wrote: >> >>>On November 02, 2001 at 10:12:03, leonid wrote: >>> >>>>Hi >>>> >>>>This one look like reflection of somebody free fantasy. In reality, it came from >>>>absence of it. Was written after furtive glance on one Chinese character. >>>> >>>>[D]8/qkqqqqQ1/q2Q4/nPBNB3/q3B3/bNRQR3/q2P4/qrrbnQK1 w - - >>>> >>>>Please indicate your result. >>>> >>>>Thanks, >>>>Leonid. >>> >>>Same system as usual: >>>proved that move d6xc7 wins, 15 turns(roughly 30 ply) >>>PN2:11172611 evals, 267628 expands, 42.24 seconds >>> >>>After manually making the move bxa6 instead, it finds that >>>black has lost in 3 seconds. >>> >>>Angrim >> >>Hi guys, > >Hello to Everybody! Hello! >>Indeed, mine starts with bxa6+ (p3/933) ... but I know PNx search doesn't care >>about the shortest line: >> >>00:09 WM9 07 bxa6+ Kb8 Qh8+ Qde8 Qxc7+ Qexc7 Qb5+ Qxb5 Qxb5+ Qb6 Qxb6+ Kc8 Qxc7+ >>Qxc7 Qxe8+ Qd8 Ne7# > >If I read correctly your response, it is mate in 9. It is really shortest mate >and your program do very well. > >Mine was not very efficent in selective and find mate only in 10 moves. Five >seconds. Brute force found mate in 9, after 52 min of search. Fine! Chest confirms all this (2.5 hours K7/600 with 350 MB hash): PV: bxa6+ Kb8 Qh8+ Qc8 Qxc8+ Kxc8 Nxe7+ Qfxe7 Bf5+ Qad7 Bxd7+ Qcxd7 Bxa7+ Qc7 Qff5+ Qd7 Qfxd7# This is the only key move. Leonid's time appears to be similar to that of Chest, this time: # 1 0.00s 0kN 0.87 1- 0 # 2 0.01s 0kN 1.00 1- 0 # 3 0.04s [ 4.00] 2kN [ 17.74] 0.97 76- 0 # 4 0.28s [ 7.00] 15kN [ 9.66] 1.04 1353- 0 # 5 2.62s [ 9.36] 117kN [ 7.73] 1.16 13556- 0 # 6 18.96s [ 7.24] 859kN [ 7.37] 1.30 106311- 0 # 7 141.96s [ 7.49] 6480kN [ 7.54] 1.44 843816- 0 # 8 1099.97s [ 7.75] 50015kN [ 7.72] 1.64 6709202- 207220 # 9 8881.32s [ 8.07] 394504kN [ 7.89] 1.76 54835847- 46087946 EBF was remarkably stable, just a bit below 8. >And how you people is impressed with the last Microsoft decision? I heard it >today with big interest. Do you think that inner Windows structures and data >will be published, and it will help to all of us in writing our new code? What decision? Do you have some URL to read? Ein schönes Wochenende wünscht Heiner >Cheers and good week-end for You! >Leonid. > > >>Groetjes, >>Paul, who's no minister or CHEN2 :)
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