Author: Robert Hyatt
Date: 16:32:43 09/07/04
Go up one level in this thread
On September 07, 2004 at 16:46:03, Albert Silver wrote: >Using the new switch [Time Control = 125] and [Time Control Status = ALWAYS] to >help Pro Deo use its time better, Pro Deo scored 20.5 - 19.5 in the Nunn 2 set >against Ruffian 1.05. It had previously lost, though I must admit I don't >remember the score. > >I then tested my new settings and it too scored 20.5 - 19.5. It squandered a >number of winning positions, which was probably due to the time control, but >most annoying of all, was to see it lose a very basic opposite colored bishop >ending despite being a pawn up! This was in the last game. It played a terrible >blunder and managed to lose. I checked to see whether this was due to my own >settings, but Pro Deo default also plays this move and needs 3 minutes 34 >seconds to find the right move. Still, to be fair, even Junior 8 takes over 2 >minutes to see this, whereas Shredder 7.04 takes a mere 6 seconds. It's one of >those issues where 2 distant passed pawns overcome the bishop. > >How does your engine do? Make sure it thinks long enough to consider the >maneuver Kf5 bringing around the king. I let Crafty run for 10+ minutes. It liked Bc2 with a score of 0.0 instantly, and never wavered from that move through 10+ minutes on my dual 2.8ghz xeon... > > Albert > >Ruffian 1.05 - Pro Deo 1.0 > >[D]8/7b/4k2P/3p4/pKp5/P1B5/8/8 b - - 0 1 > >Analysis by Pro Deo 1.0: > >69...Kf5 70.Kxa4 Ke4 71.Kb4 Kd3 72.Bf6 d4 73.a4 c3 74.Ka3 Be4 75.a5 >² (0.43) Depth: 18 00:01:43 151580kN >69...Bc2 70.Bd4 Kd6 71.Bf2 Bd3 72.Kxa4 c3 73.Bd4 c2 74.Be3 Be4 >= (0.00) Depth: 18 00:03:34 316763kN > >Analysis by Junior 8: > >69...Kf5 70.Kxa4 Ke4 71.Kb4 Kd3 72.Be5 d4 73.Kc5 c3 74.Bxd4 c2 75.Bb2 Kd2 76.a4 >c1B 77.Bxc1+ Kxc1 >= (0.00) Depth: 26 00:00:18 22052kN >69...Kf5 70.Kxa4 Ke4 71.Kb4 d4 72.Kxc4 dxc3 73.Kxc3 Kd5 74.Kb4 Kc6 75.a4 Kb6 >76.Kc3 Ka5 77.Kb3 Bg8+ 78.Ka3 Bh7 >= (0.10) Depth: 28 00:01:29 120238kN >69...Bc2 70.Kc5 >= (0.00) Depth: 28 00:02:01 170295kN > >Analysis by Shredder 7.04: > >69...Kf5 70.Kxa4 Bg8 71.Kb4 Kg6 72.Bg7 d4 73.Bxd4 Kxh6 74.a4 c3 75.Kxc3 Bd5 >76.Kb4 Kg6 > = (0.13) Depth: 18/33 00:00:05 3012kN >69...Bc2 70.Bd4 Ke7 71.Kc5 Be4 72.h7 Bxh7 73.Kxd5 > = (0.12) Depth: 18/35 00:00:06 3796kN >69...Bc2 70.Bd4 Ke7 71.Kc5 Be4 72.Kb4 Bc2 73.Kc5 Be4 74.Kb4 Bc2 75.Kc5 > = (0.00) Depth: 18/35 00:00:07 4758kN >69...Bc2 70.Bd4 Ke7 71.Kc5 Be4 72.Kb4 Bc2 73.Kc5 Be4 74.Kb4 Bc2 75.Kc5 > = (0.00) Depth: 19/31 00:00:10 6289kN > >(Silver, Private 07.09.2004)
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