Author: Andrew Williams
Date: 14:09:43 03/16/99
Go up one level in this thread
On March 16, 1999 at 13:39:12, Will Singleton wrote: > >On March 16, 1999 at 02:44:55, Bruce Moreland wrote: > >> >>On March 16, 1999 at 01:09:52, Steffen Jakob wrote: >> >>>On March 15, 1999 at 17:40:38, Will Singleton wrote: >>> >>>[...] >>> >>>>u2600 Position of the Week >>>> >>>>The following position is from the game PostModernist - Amateur, played this >>>>week on fics or ICC. PM makes an interesting move, Bf5, which appears >>>>pretty speculative, but seems to me to be the best move. No program I have >>>>tested will play it. Question -- is it the best move, and if so, how did >>>>PM come to play it? >>>> >>>>2r1k2r/1pq3p1/p1n1ppP1/3p3n/3P4/1QNBP2P/PP4Pb/R3BR1K w k - >>> >>>Hossa likes e4 in this position: >> >>Mine also wants to play e4 but Bf5 might be even nastier, it's hard to tell. >>Not a position you want to play with black, regardless. >> >>bruce > >I thought Bf5 was the bolder move, really dominates the board and anticipates >recovering the bishop on h2, or better. My eval after Bf5 exf5 Nxd5 Qd6 Rxf5 is >greater than 2 (after a 9 ply search from that position). Several moves would >probably win, but I liked the style of Bf5. > Hi Will, This is PostModernist's log file output at the time - as you can see, it saw the move after 9 seconds, but this is with the benefit of the TT being already stuffed. I've changed the eval somewhat since, but it still likes Bf5 at about depth 8 (11 secs). I also searched to d9 after the line you mention, and I get -2.9 for Black. Andrew Williams --- Pondering (GWT=0), assuming move: f6 --- 2= 128 0 47 Na4 Ng3 Bxg3 Bxg3 Nc5 Nd8 Rac1 3= 128 0 137 Na4 Ng3 Bxg3 Bxg3 Nc5 Nd8 Rac1 4= 128 0 227 Na4 Ng3 Bxg3 Bxg3 Nc5 Nd8 Rac1 5= 128 0 317 Na4 Ng3 Bxg3 Bxg3 Nc5 Nd8 Rac1 6= 128 0 407 Na4 Ng3 Bxg3 Bxg3 Nc5 Nd8 Rac1 7= 137 3 125628 Na4 Bg3 Nb6 Rb8 Bc3 Qd6 8b 158 9 431077 Bf5 exf5 Nxd5 Qb8 Nb6 Rd8 Qf7 8= 177 11 527141 Bf5 exf5 Nxd5 Qd6 Qxb7 Rb8 --- Pondering finished --- time 68000 otim 64400 f7f6 PONDERING MOVE RIGHT 2= 150 15 719124 Bf5 exf5 Nxd5 Qd6 Qxb7 Rb8 3= 151 15 719227 Bf5 exf5 Nxd5 Qd6 Qxb7 Rb8 4= 152 15 720429 Bf5 exf5 Nxd5 Qd6 Qxb7 Rb8 5= 152 15 722614 Bf5 exf5 Nxd5 Qd6 Qxb7 Rb8 6= 155 16 733703 Bf5 exf5 Nxd5 Qd6 Qxb7 Rb8 7= 150 16 766337 Bf5 exf5 Nxd5 Qd6 Qxb7 Rb8 8= 156 18 864018 Bf5 exf5 Nxd5 Qd6 Qxb7 Rb8 NODES PER SECOND 45500
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