Author: John Merlino
Date: 12:40:16 08/09/02
Go up one level in this thread
On August 09, 2002 at 15:31:31, John Merlino wrote: >On August 09, 2002 at 15:22:49, Slater Wold wrote: > >>On August 09, 2002 at 14:47:12, John Merlino wrote: >> >>>On August 09, 2002 at 14:36:41, Slater Wold wrote: >>> >>>>[D]1q4k1/1rb1rpp1/2p2n2/p2p4/3P2P1/2N1PQ1P/1P6/R1B2RK1 b - - 0 37 >>>> >>>>Anyone get Rxb2? >>>> >>>>I am @ work so I cannot really study this, but it looks pretty nice from what I >>>>can see. >>> >>>Chessmaster 9000, on a PIII-600, says no sale. It did take a good long look at >>>it, though: >>> >>>Time Depth Score Positions Moves >>>0:00 1/3 -0.86 1340 37...Rb3 38.Ra3 Rxa3 39.bxa3 >>>0:00 1/4 -0.80 3799 37...Rb3 38.g5 Ne4 39.Nxe4 dxe4 >>>0:00 1/5 -0.67 17492 37...Rb3 38.Qf2 Rb4 39.Qc2 Re6 >>>0:01 1/5 -0.68 42114 37...Bh2+ 38.Kh1 Qc7 39.g5 Ne4 >>> 40.Nxe4 Rxe4 >>>0:01 1/6 -0.68 64374 37...Bh2+ 38.Kh1 Qc7 39.g5 Ne4 >>> 40.Nxe4 Rxe4 >>>0:01 1/6 -0.80 86115 37...Rb3 38.Qf2 Nh7 39.Qf5 g6 40.Qc2 >>> Ng5 >>>0:03 1/7 -0.74 206219 37...Rb3 38.g5 Ne4 39.Nxe4 dxe4 >>> 40.Qf5 Rb5 >>>0:10 1/8 -0.78 647210 37...Rb3 38.Qf2 Nh7 39.Ra3 Rxa3 >>> 40.bxa3 Ng5 41.Qh4 f6 42.Kg2 >>>0:29 1/9 -0.69 1906490 37...Rb3 38.Qf2 Rb4 39.Qc2 Nh7 >>> 40.h4 Bg3 41.Rxa5 Bxh4 42.Rf4 >>>0:43 1/9 -0.75 2872154 37...Rb4 38.Qf2 Qe8 39.Kh1 Ne4 >>> 40.Nxe4 Rxe4 41.Ra3 Re7 42.Qc2 >>>1:34 1/10 -0.78 6403879 37...Rb4 38.Qf2 Qe8 39.Kh1 Ne4 >>> 40.Nxe4 Rxe4 41.Ra3 Re7 42.Qc2 Rc4 >>>4:31 2/11 -0.73 19090601 37...Rb4 38.Rf2 Ne4 39.Nxe4 dxe4 >>> 40.Qg2 Qb5 41.Rc2 Re6 42.Rc5 Qd3 >>> 43.Ra3 >>>6:17 2/11 -0.80 26150126 37...Qd8 38.g5 Qd6 39.Rf2 Ne4 40.Nxe4 >>> dxe4 41.Qg4 Rb5 42.Ra3 Re8 43.Rc3 >>> >>>jm >> >>Well, Rxb2 led to a win against a pretty decent opponent in a standard game (not >>blitz). I won't say it's the *only* move, but at least I know it does win, >>pretty convincingly too. > >You're almost certainly correct. I'm pretty hampered by a pretty slow processor, >and CM might have found the move with a better CPU. Maybe someday I'll have a >1GHz! ;-) > >jm Then again, further analysis, after forcing Rxb2 Bxb2 Qxb2, shows that CM9000 still doesn't like it better than Qd8: Time Depth Score Positions Moves 0:00 1/3 -0.25 2337 39.Rfc1 Qd2 40.Qe2 Qxe3+ 41.Qxe3 Rxe3 0:00 1/4 -0.25 5318 39.Rfc1 Qd2 40.Qe2 Qxe3+ 41.Qxe3 Rxe3 0:00 1/5 -0.64 15389 39.Rfc1 Qd2 40.Qe2 Qxe3+ 41.Qxe3 Rxe3 42.Na4 Rxh3 43.Rxc6 0:01 1/6 -0.64 40240 39.Rfc1 Qd2 40.Qe2 Qxe3+ 41.Qxe3 Rxe3 42.Na4 Rxh3 43.Rxc6 0:03 1/6 -0.54 53406 39.Ne2 Qd2 40.Ra3 Ne4 41.Rb3 Bd6 0:04 1/7 -0.75 108681 39.Ne2 Qd2 40.Ra3 Ne4 41.Kg2 Bd6 42.Raa1 0:05 1/8 -0.61 206562 39.Ne2 Qd2 40.Ra3 Ne4 41.Kg2 Qb4 42.Rfa1 Qb2 0:13 1/9 -0.89 736221 39.Ne2 Qd2 40.g5 Rxe3 41.Ra2 Qd3 42.Qf5 Qxf5 43.Rxf5 Ne4 0:18 1/9 -0.77 1173819 39.Rfc1 Qd2 40.Qe2 Qxe3+ 41.Qxe3 Rxe3 42.Nd1 Rg3+ 43.Kf1 Bb6 44.Rxc6 Bxd4 45.Rc8+ Kh7 46.Rxa5 Rxh3 0:33 2/10 -0.77 2474414 39.Rfc1 Qd2 40.Qe2 Qxe3+ 41.Qxe3 Rxe3 42.Nd1 Rg3+ 43.Kf1 Bb6 44.Rxc6 Bxd4 45.Rc8+ Kh7 46.Rxa5 Rxh3 2:04 3/11 -0.59 10427185 39.Rfc1 Qd2 40.Qe2 Qxe3+ 41.Qxe3 Rxe3 42.Nd1 Rg3+ 43.Kf1 Bb6 44.Rxc6 Bxd4 45.Rxa5 Rxh3 46.Rc7 6:55 4/12 -0.52 35620726 39.Rfc1 Qd2 40.Qe2 Qxe3+ 41.Qxe3 Rxe3 42.Nd1 Re6 43.Nf2 Bb6 44.Ra4 Ne4 45.Nxe4 Rxe4 jm
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