Author: Albert Silver
Date: 13:46:03 09/07/04
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.
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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