Author: Matthew White
Date: 15:07:12 12/02/02
Go up one level in this thread
Tested the positions with Ruffian 1.0.1 on a PIII 800. Results inline. I'm still
incredibly impressed by this engine.
Matt
On December 02, 2002 at 13:45:57, Peter McKenzie wrote:
>I've been looking at some positions from the Warp-Diep game from the WCCC in
>Maastricht this year. Here are a few test positions:
>
>[D]7k/p3Qp1p/1p2n3/4nqP1/2P5/2P3R1/P5RP/3r2BK w - -
Depth Time Score Best line
8/19 1.03 2.86 Qxa7 Nf4 Qa8+ Kg7 Rf2 Ned3 Rff3 Ne5 Qa4 Nxf3 Qxd1
8--> 3.06 2.86 Qxa7 Nf4 Qa8+ Kg7 Rf2 Ned3 Rff3 Ne5 Qa4 Nxf3 Qxd1
9/24 3.88 2.73 Qxa7 Nf4 Qa8+ Kg7 Rf2 Ned3 Rff3 Ne5 Re3 Nxc4
9--> 10.31 2.73 Qxa7 Nf4 Qa8+ Kg7 Rf2 Ned3 Rff3 Ne5 Re3 Nxc4
10/24 11.59 -- Qxa7
10/26 15.31 2.15 Qxa7 Nf4 Qe7 Kg8 Qe8+ Kg7 g6 hxg6 Rg5 Rxg1+ Rxg1
Qe4+ R5g2 Kh6
10/28 28.56 x.xx Re2
10/29 43.48 2.44 Re2 Nd3 Qf6+ Qxf6 gxf6 Ndf4 Re4 Nh5 Rf3 Kg8 Rf5 Nc5
10/29 47.95 x.xx Qf6+
10--> 59.38 2.44 Re2 Nd3 Qf6+ Qxf6 gxf6 Ndf4 Re4 Nh5 Rf3 Kg8 Rf5 Nc5
11/32 1:20 2.39 Re2 Nd3 Qf6+ Qxf6 gxf6 Ndf4 Rf2 h5 Rb2 h4 Rg4 h3
Rg3
11/32 1:31 x.xx Qf6+
11/32 1:37 2.47 Qf6+ Qxf6 gxf6 Rd8 c5 bxc5 Rb2 Nd7 Rb7 Nxf6 Rxf7
Ne4 Rgf3
11--> 1:45 2.47 Qf6+ Qxf6 gxf6 Rd8 c5 bxc5 Rb2 Nd7 Rb7 Nxf6 Rxf7
Ne4 Rgf3
12/32 1:55 2.50 Qf6+ Qxf6 gxf6 h6 Rg8+ Kh7 Ra8 Nc6 Rc8 Na5 Re8 Nc6
Rg3 Rd2 Rg2 Nc7 Rxd2 Nxe8 Rd7
12--> 2:28 2.50 Qf6+ Qxf6 gxf6 h6 Rg8+ Kh7 Ra8 Nc6 Rc8 Na5 Re8 Nc6
Rg3 Rd2 Rg2 Nc7 Rxd2 Nxe8 Rd7
13/36 2:50 2.51 Qf6+ Qxf6 gxf6 h6 Rg8+ Kh7 Rb8 Rf1 Rb7 Rxf6 Rxa7
Nxc4 Rd7 Ng5 Rc7 Ne5 Bd4
It likes Qf6+ after ~45 seconds.
>
>Warp played Qe8+ followed by Qa4 here, which wasn't very good.
>Qf6+ was suggested and certainly looks like an improvement, although perhaps its
>not so easy to white to make progress there.
>
>The current Warp however prefers Qxa7, which also looks good. Personally I like
>Qxa7 better than Qf6.
>What do other engines play here?
>
>[D]8/p4pkp/1p2n3/2P1n1P1/8/1QP3R1/P5RP/2qr2BK b - -
Depth Time Score Best line
8--> 1.19 -1.80 ... Nxc5 Qb4 Rd3 Rxd3 Ncxd3 Qe7 Qxc3 Qxa7 Nf4
9/20 2.28 -1.84 ... Nxc5 Qb4 Kg8 Qh4 Ng6 Qh6 Nd3 Re2 Qxc3
9--> 3.80 -1.84 ... Nxc5 Qb4 Kg8 Qh4 Ng6 Qh6 Nd3 Re2 Qxc3
10/22 6.09 -1.75 ... Nxc5 Qb4 Rd3 Qh4 Qxc3 Bxc5 Qxc5 Qh6+ Kg8 Rxd3
Nxd3 Re2
10/24 7.22 x.xx ... Nf4
10/24 8.01 -1.52 ... Nf4 Rc2 Rxg1+ Rxg1 Qe3 Qb1 Qf3+ Rgg2 Nxg2 Rxg2
Nd3 Kg1 Nxc5 Qc2
10--> 8.58 -1.52 ... Nf4 Rc2 Rxg1+ Rxg1 Qe3 Qb1 Qf3+ Rgg2 Nxg2 Rxg2
Nd3 Kg1 Nxc5 Qc2
11/25 10.85 -1.19 ... Nf4 Rc2 Rxg1+ Rxg1 Qe3 Qb1 Qf3+ Rgg2 Nxg2 Rxg2
Nd3 Qg1 bxc5 c4 f5
11--> 12.92 -1.19 ... Nf4 Rc2 Rxg1+ Rxg1 Qe3 Qb1 Qf3+ Rgg2 Nxg2 Rxg2
Nd3 Qg1 bxc5 c4 f5
12/30 18.39 -1.12 ... Nf4 Rc2 Rxg1+ Rxg1 Qe3 Qb1 Qe4+ Rcg2 Ned3 Qf1
Nxg2 Rxg2 Nf4 cxb6 axb6 Kg1 Nxg2 Qxg2
12--> 24.61 -1.12 ... Nf4 Rc2 Rxg1+ Rxg1 Qe3 Qb1 Qe4+ Rcg2 Ned3 Qf1
Nxg2 Rxg2 Nf4 cxb6 axb6 Kg1 Nxg2 Qxg2
13/30 36.31 ++ ... Nf4
13/34 1:31 -0.14 ... Nf4 Rc2 Rxg1+ Rxg1 Qe3 Qb1 Qe4+ Rcg2 Ned3 Qf1
Nxg2 Qf6+ Kg8 Qd8+ Kg7 Qd4+ Qxd4 cxd4 Ne3 c6
13--> 1:47 -0.14 ... Nf4 Rc2 Rxg1+ Rxg1 Qe3 Qb1 Qe4+ Rcg2 Ned3 Qf1
Nxg2 Qf6+ Kg8 Qd8+ Kg7 Qd4+ Qxd4 cxd4 Ne3 c6
14/34 2:36 0.00 ... Nf4 Rc2 Rxg1+ Rxg1 Qe3 Qb1 Qe4+ Rcg2 Ned3 Qf1
Nxg2 Qf6+ Kg8 Qd8+ Kg7 Qf6+
14--> 2:51 0.00 ... Nf4 Rc2 Rxg1+ Rxg1 Qe3 Qb1 Qe4+ Rcg2 Ned3 Qf1
Nxg2 Qf6+ Kg8 Qd8+ Kg7 Qf6+
15... 2:51 1/46 Nf4
It finds the draw after 2:36, and it plays Nf4!! after 7.22 seconds.
>
>Here Diep played Nf4!! which forces a draw. How long do other engines take to
>find Nf4 ?
>Warp needs about 11 minutes on my PIII 1Ghz.
>
>[D]8/p4pkp/1p6/2P1n1P1/5n2/1QP1q3/P1R4P/6RK w - -
Depth Time Score Best line
8--> 1.12 1.19 Qb1 Qf3+ Rgg2 Nxg2 Rxg2 Nd3 Qg1 bxc5 c4 f5
9/20 1.46 1.12 Qb1 Qe4+ Rcg2 Ned3 Qf1 Nxg2 Rxg2 Nf4 cxb6 axb6 Kg1
Nxg2 Qxg2
9--> 1.97 1.12 Qb1 Qe4+ Rcg2 Ned3 Qf1 Nxg2 Rxg2 Nf4 cxb6 axb6 Kg1
Nxg2 Qxg2
10/24 2.05 -- Qb1
10/27 2.73 0.14 Qb1 Qe4+ Rcg2 Ned3 Qf1 Nxg2 Qf6+ Kg8 Qd8+ Kg7 Qd4+
Qxd4 cxd4 Ne3 c6
10--> 4.43 0.14 Qb1 Qe4+ Rcg2 Ned3 Qf1 Nxg2 Qf6+ Kg8 Qd8+ Kg7 Qd4+
Qxd4 cxd4 Ne3 c6
11/27 5.01 0.00 Qb1 Qe4+ Rcg2 Ned3 Qf1 Nxg2 Qf6+ Kg8 Qd8+ Kg7 Qf6+
11--> 8.25 0.00 Qb1 Qe4+ Rcg2 Ned3 Qf1 Nxg2 Qf6+ Kg8 Qd8+ Kg7 Qf6+
12/27 12.38 0.02 Qb1 Qe4+ Rcg2 Ned3 Qf1 Nxg2 Rxg2 Nf4 h3 Nxg2 Qxg2
Qe1+ Kh2 bxc5 c4 f5
12--> 24.51 0.02 Qb1 Qe4+ Rcg2 Ned3 Qf1 Nxg2 Rxg2 Nf4 h3 Nxg2 Qxg2
Qe1+ Kh2 bxc5 c4 f5
13/34 53.60 ++ Qb1
13/34 1:01 0.00 Qb1 Qf3+ Rgg2 Nxg2 Rxg2 Nd3 Qg1 bxc5 c4 Nf4 Qf2 Qxg2+
Qxg2 Nxg2 Kxg2 f5 gxf6+ Kxf6 Kf3 h5
13--> 1:15 0.00 Qb1 Qf3+ Rgg2 Nxg2 Rxg2 Nd3 Qg1 bxc5 c4 Nf4 Qf2 Qxg2+
Qxg2 Nxg2 Kxg2 f5 gxf6+ Kxf6 Kf3 h5
It basically found the draw after 5 seconds, lost it slightly, and then picked
it up again at a minute. Though one might argue that an evaluation of 0.02 is
still a draw.
>
>This is the game after Nf4 Rc2 Rxg1 Rxg1 Qe3.
>How long for your engine to show a draw score here? Warp's score drops to +0.3
>at depth 12, in about 3.5 minutes. I'll let it continue to see when it sees the
>draw.
>
>thanks,
>Peter
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