and wrong!George Tsavdaris wrote: I wonder how difficult is to program engines for a primitive kind of planning like that Uri has shown. Primitive because it's simple and straightforward.
a hard test position for computers that I composed
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Re: a hard test position for computers that I composed
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Re: a hard test position for computers that I composed
Which engines find mate-in-20?
[D]1kb5/1p1pN1K1/pP1P4/P7/8/8/8/3b4 w - - 17 9
[D]1kb5/1p1pN1K1/pP1P4/P7/8/8/8/3b4 w - - 17 9
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Re: a hard test position for computers that I composed
Stockfish-2.0.1 (8 threads) does:zullil wrote:Which engines find mate-in-20?
[D]1kb5/1p1pN1K1/pP1P4/P7/8/8/8/3b4 w - - 17 9
Code: Select all
Searching: 1kb5/1p1pN1K1/pP1P4/P7/8/8/8/3b4 w - -
infinite: 1 ponder: 0 time: 0 increment: 0 moves to go: 0
1 -4.12 00:01 30 Kf6
2 -4.16 00:01 58 Kf6 Bf3
3 -4.00 00:01 142 Kf6 Bf3 Ke5
4 -4.00 00:01 324 Kf6 Bb3 Ke5 Bc4
5 -4.04 00:01 494 Kf6 Bb3 Ke5 Bc4 Nxc8 Kxc8
6 > -3.96 00:01 704 Kf6 Bb3 Ke5 Bc4 Nd5
6 > -3.88 00:01 815 Kf6 Bb3 Ke5 Bc4 Nd5
6 -3.92 00:01 1089 Kf6 Bc2 Ke5 Bb3 Kd4 Be6
7 -3.96 00:01 1419 Kf6 Bc2 Ke5 Bb3 Kd4 Be6 Nxc8 Kxc8
8 > -3.84 00:01 1981 Kf6 Bc2 Ke5 Bb3 Kd4 Be6 Nd5
8 -3.84 00:01 3459 Kf6 Bb3 Ke5 Be6 Nd5 Bf7 Nf6 Bc4
9 -3.76 00:01 4097 Kf6 Bb3 Ke5 Be6 Nd5 Bf7 Nf6 Bb3 Kd4 Be6
10 -3.76 00:01 5245 Kf6 Bb3 Ke5 Be6 Nd5 Bf7 Kd4 Bg6 Ke5 Bc2 Nf6
11 > -3.68 00:01 8768 Kf6 Bb3 Ke5 Be6 Nd5 Bf7 Kd4 Bg6 Ke5 Bc2 Kd4
11 -3.68 00:01 9376 Kf6 Bb3 Ke5 Be6 Nd5 Bf7 Kd4 Bg6 Nf6 Bc2 Ke5 Bb3
Kd4 Be6 Nd5 Bg4 Nf6 Be6
12 < -3.76 00:01 11688 Kf6 Bb3 Ke5 Be6 Nd5 Bf7 Kd4 Bg6 Nf6 Bc2 Ke5 Bb3
Kd4 Be6 Nd5 Bg4 Ke5 Bf3 Ne7 Bh5 Nd5 Be2 Ne7 Bf3
Nd5 Be2
12 -3.68 00:01 13201 Kf6 Bb3 Ke5 Be6 Nd5 Bf7 Kd4 Bg6 Nf6 Bc2 Ke5 Bb3
Kd4 Be6 Nd5 Bf5 Nf6 Be6
13 < -3.76 00:01 13863 Kf6 Bb3 Ke5 Be6 Nd5 Bf7 Kd4 Bg6 Nf6 Bc2 Ke5 Bb3
Kd4 Be6 Nd5 Bf5 Nf6 Bc2
13 -3.76 00:01 14999 Kf6 Bb3 Ke5 Be6 Nd5 Bf7 Kd4 Bg6 Nf6 Bc2 Ke5 Bb3
Kd4 Be6 Nd5 Bf5 Nf6 Bc2
14 > -3.68 00:01 15848 Kf6 Bb3 Ke5 Be6 Nd5 Bf7 Kd4 Bg6 Nf6 Bc2 Ke5 Bb3
Nd5 Bc4 Kd4 Bb3 Ne7 Be6 Nd5 Bf5 Nf6 Bc2
14 -3.76 00:01 21356 Kf6 Bb3 Ke5 Be6 Nd5 Bf7 Kd4 Bg6 Nf6 Bc2 Ke5 Bb3
Kd4 Be6 Nd5 Bf5 Ne7 Be6 Ng6 Bg4 Ne5 Be6 Ke4
15 -3.76 00:01 24163 Kf6 Bb3 Ke5 Be6 Nd5 Bf7 Kd4 Bg6 Nf6 Bc2 Ke5 Bd1
Ke4 Be2 Ke5 Bf3 Kd4
16 > -3.68 00:01 29542 Kf6 Bb3 Ke5 Be6 Nd5 Bf7 Kd4 Bg6 Nf6 Bc2 Ke5 Bd1
Ke4 Be2 Kd5
16 -3.68 00:01 31609 Kf6 Bb3 Ke5 Be6 Nd5 Bf7 Kd4 Bg6 Nf6 Bc2 Ke5 Bd1
Nd5 Be2 Ne7 Bh5 Nd5 Bg6 Nf6 Bc2 Nd5 Bd3 Ne7 Bc4
Nd5 Bd3
17 -3.72 00:01 59960 Kf6 Bb3 Ke5 Be6 Nd5 Bf7 Ne7 Be6
17 > -3.60 00:01 66485 Kf8 Bf3 Ke8 Bg2 Kd8
17 > -3.52 00:01 69539 Kf8 Bf3 Ke8 Bg2 Kd8
17 > -3.35 00:01 71996 Kf8 Bh5 Kg8 Bf3 Kf8 Be4 Ke8
17 > -3.02 00:01 73963 Kf8 Bh5 Kg8 Be2 Kf8 Bh5
17 > -2.38 00:01 75922 Kf8 Bh5 Kg8 Be2 Kf8 Bh5
17 > -1.09 00:01 78563 Kf8 Bh5 Kg8 Be2 Kf8 Bh5
17 +0.00 00:01 86474 Kf8 Bh5 Kg8 Be2 Kf8 Bh5
18 +0.00 00:01 88313 Kf8 Bh5 Kg8 Be2 Kf8 Bh5
19 +0.00 00:01 91198 Kf8 Bh5 Kg8 Be2 Kf8 Bh5
20 +0.00 00:01 93346 Kf8 Bh5 Kg8 Be2 Kf8 Bh5
21 +0.00 00:01 95899 Kf8 Bh5 Kg8 Be2 Kf8 Bh5
22 +0.00 00:01 98927 Kf8 Bh5 Kg8 Be2 Kf8 Bh5
23 +0.00 00:01 104176 Kf8 Bh5 Kg8 Be2 Kf8 Bh5
24 +0.00 00:01 107948 Kf8 Bh5 Kg8 Be2 Kf8 Bh5
25 +0.00 00:01 113318 Kf8 Bh5 Kg8 Be2 Kf8 Bh5
26 +0.00 00:01 121738 Kf8 Bh5 Kg8 Be2 Kf8 Bh5
27 +0.00 00:01 131797 Kf8 Bh5 Kg8 Be2 Kf8 Bh5
28 +0.00 00:01 137045 Kf8 Bh5 Kg8 Be2 Kf8 Bh5
29 +0.00 00:01 148347 Kf8 Bh5 Kg8 Be2 Kf8 Bh5
30 +0.00 00:01 158492 Kf8 Bh5 Kg8 Be2 Kf8 Bh5
31 +0.00 00:01 168301 Kf8 Bh5 Kg8 Be2 Kf8 Bh5
32 +0.00 00:01 177865 Kf8 Bh5 Kg8 Be2 Kf8 Bh5
33 +0.00 00:01 192434 Kf8 Bh5 Kg8 Be2 Kf8 Bh5
34 +0.00 00:01 210787 Kf8 Bh5 Kg8 Be2 Kf8 Bh5
35 +0.00 00:01 230477 Kf8 Bh5 Kg8 Be2 Kf8 Bh5
36 +0.00 00:01 255378 Kf8 Bh5 Kg8 Be2 Kf8 Bh5
36 > +0.08 00:01 412702 Kf7 Bf3 Ke8 Bd1 Kd8 Bf3 Nxc8 Be2 Ne7 Bg4 Nd5 Bf3
Nf6
36 > +0.16 00:01 459761 Kf7 Bf3 Ke8 Bd1 Kd8 Bf3 Nxc8 Be2 Ne7 Bg4 Nd5 Bf5
Nf6
36 > +0.32 00:01 561807 Kf7 Bf3 Ke8 Bd1 Kd8 Bf3 Nxc8 Be2 Ne7 Bg4 Nd5 Bf5
Nf6
36 > +0.65 00:01 664420 Kf7 Bf3 Ke8 Bd1 Kd8 Bf3 Nxc8 Be2 Ne7 Bg4 Nd5 Bf5
Nf6
36 > +1.29 00:01 879542 Kf7 Bf3 Ke8 Bd1 Kd8 Bf3 Nxc8 Be2 Ne7 Bg4 Nd5 Bf5
Nf6
36 > +2.59 00:01 1107K Kf7 Bf3 Ke8 Bd1 Kd8 Bf3 Nxc8 Be2 Ne7 Bg4 Nd5 Bf5
Nf6 Ka8 Nxd7 Bh3 Ke8
36 > +5.17 00:02 4592K Kf7 Bf3 Ke8 Bd1 Kd8 Bf3 Nxc8 Be2 Ne7 Bg4 Nd5 Bf5
Nf6 Ka8 Nxd7 Bh3 Ke8 Bf5 Ke7 Bh3 Ne5
36 > +10.34 00:02 4680K Kf7 Bf3 Ke8 Bd1 Kd8 Bf3 Nxc8 Be2 Ne7 Bg4 Nd5 Bf5
Nf6 Ka8 Nxd7 Bg6 Ke7 Bf5 Nf6 Kb8 d7 Bxd7 Kxd7 Ka8
Ke7 Kb8 Ke8 Ka8 Nd5 Kb8 Kd8 Ka8 Ne7 Kb8 Kd7 Ka8
Nc6 bxc6 Kc7
36 > +20.69 00:02 4742K Kf7 Bf3 Ke8 Bd1 Kd8 Bf3 Nxc8 Be2 Ne7 Bg4 Nd5 Bf5
Nf6 Ka8 Nxd7 Bg6 Ke7 Bf5 Nf6 Kb8 d7 Bxd7 Kxd7 Ka8
Ke7 Kb8 Ke8 Ka8 Nd5 Kb8 Kd8 Ka8 Ne7 Kb8 Kd7 Ka8
Nc6 bxc6 Kc7
36 > +41.37 00:02 4968K Kf7 Bf3 Ke8 Bd1 Kd8 Bf3 Nxc8 Be2 Ne7 Bg4 Nd5 Bf5
Nf6 Ka8 Nxd7 Bg6 Ke7 Bf5 Nf6 Kb8 d7 Bxd7 Kxd7 Ka8
Ke7 Kb8 Ke8 Ka8 Nd5 Kb8 Kd8 Ka8 Ne7 Kb8 Kd7 Ka8
Nc6 bxc6 Kc7
36 > +82.75 00:02 5000K Kf7 Bf3 Ke8 Bd1 Kd8 Bf3 Nxc8 Be2 Ne7 Bg4 Nd5 Bf5
Nf6 Ka8 Nxd7 Bg6 Ke7 Bf5 Nf6 Kb8 d7 Bxd7 Kxd7 Ka8
Ke7 Kb8 Ke8 Ka8 Nd5 Kb8 Kd8 Ka8 Ne7 Kb8 Kd7 Ka8
Nc6 bxc6 Kc7
36 +3.52 00:05 18503K Kf7 Bh5+ Kf8 Ka8 Nxc8 Kb8 Ne7 Ka8 Nd5 Kb8 Nf6 Bf3
Nxd7+ Kc8 Ke7 Bg2 Ne5 Bh3 Ke8 Be6 Ng6 Bd7+ Ke7
Bh3 Ne5 Bf5 Nd3 Bd7 Kf6 Bg4 Kf7 Bd7 Nc5 Bf5 Ke7
Bg4 Ke8 Bd7+ Kf7
37 > +7.03 00:05 18841K Kf7 Bh5+ Kf8 Ka8 Nxc8 Kb8 Na7 Bg4 Ke7 Be6 Kd8 Bg4
Nc8 Ka8 Ke8 Kb8 Ne7 Ka8 Nd5 Bf3 Nf6 Kb8 Nxd7+ Ka8
Ne5 Be2 d7 Bb5 Ke7 Bxd7 Kxd7 Kb8 Kd8 Ka8 Nc6 bxc6
Kc7 c5 b7+ Ka7 b8=Q#
37 > +12.96 00:05 18842K Kf7 Bh5+ Kf8 Ka8 Nxc8 Kb8 Na7 Bg4 Ke7 Be6 Kd8 Bg4
Nc8 Ka8 Ke8 Kb8 Ne7 Ka8 Nd5 Bf3 Nf6 Kb8 Nxd7+ Ka8
Ne5 Be2 d7 Bb5 Ke7 Bxd7 Kxd7 Kb8 Kd8 Ka8 Nc6 bxc6
Kc7 c5 b7+ Ka7 b8=Q#
37 > +17.63 00:05 18843K Kf7 Bh5+ Kf8 Ka8 Nxc8 Kb8 Na7 Bg4 Ke7 Be6 Kd8 Bg4
Nc8 Ka8 Ke8 Kb8 Ne7 Ka8 Nd5 Bf3 Nf6 Kb8 Nxd7+ Ka8
Ne5 Be2 d7 Bb5 Ke7 Bxd7 Kxd7 Kb8 Kd8 Ka8 Nc6 bxc6
Kc7 c5 b7+ Ka7 b8=Q#
37 > +31.64 00:05 18844K Kf7 Bh5+ Kf8 Ka8 Nxc8 Kb8 Na7 Bg4 Ke7 Be6 Kd8 Bg4
Nc8 Ka8 Ke8 Kb8 Ne7 Ka8 Nd5 Bf3 Nf6 Kb8 Nxd7+ Ka8
Ne5 Be2 d7 Bb5 Ke7 Bxd7 Kxd7 Kb8 Kd8 Ka8 Nc6 bxc6
Kc7 c5 b7+ Ka7 b8=Q#
37 > +82.75 00:05 18844K Kf7 Bh5+ Kf8 Ka8 Nxc8 Kb8 Na7 Bg4 Ke7 Be6 Kd8 Bg4
Nc8 Ka8 Ke8 Kb8 Ne7 Ka8 Nd5 Bf3 Nf6 Kb8 Nxd7+ Ka8
Ne5 Be2 d7 Bb5 Ke7 Bxd7 Kxd7 Kb8 Kd8 Ka8 Nc6 bxc6
Kc7 c5 b7+ Ka7 b8=Q#
37 > #22 00:05 18845K Kf7 Bh5+ Kf8 Ka8 Nxc8 Kb8 Na7 Bg4 Ke7 Be6 Kd8 Bg4
Nc8 Ka8 Ke8 Kb8 Ne7 Ka8 Nd5 Bf3 Nf6 Kb8 Nxd7+ Ka8
Ne5 Be2 d7 Bb5 Ke7 Bxd7 Kxd7 Kb8 Kd8 Ka8 Nc6 bxc6
Kc7 c5 b7+ Ka7 b8=Q#
37 #20 00:06 24629K Kf7 Bh5+ Kf8 Ka8 Nxc8 Kb8 Na7 Bg4 Ke7 Be6 Kd8 Bg4
Nc8 Bh5 Ne7 Bf7 Kxd7 Bh5 Kd8 Be2 d7 Bb5 Ke8 Ba4
Nc8 Bc6 Na7 Ba4 Ke7 Bxd7 Kxd7 Ka8 Nc6 bxc6 Kc7 c5
b7+ Ka7 b8=Q#
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Re: a hard test position for computers that I composed
Hi Jouni,Jouni wrote:Michael, how did You solve with Chest? My Chest is not solving (1. position) in 10 minutes by Autoturbo with any seach order
if you look at ChestUCI's output you see that Michael has set fixed K2 manually before starting the search.
Regards,
Franz
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Re: a hard test position for computers that I composed
A so-called 'dual-brain' ...Michael Diosi wrote: of course, I used my own intelligence
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Re: a hard test position for computers that I composed
Hi,zullil wrote:Which engines find mate-in-20?
[D]1kb5/1p1pN1K1/pP1P4/P7/8/8/8/3b4 w - - 17 9
FEN: 1kb5/1p1pN1K1/pP1P4/P7/8/8/8/3b4 w - - 17 9
ChestUCI+Brain:
FEN: 1kb5/1p1pN1K1/pP1P4/P7/8/8/8/3b4 w - - (5+6)
Stellungs-Analyse: C0/R0/K2/P2/X8 W:2/14
AutoTurbo-Suche nach 1. Spezial-Matt [C1/R0/K2/P0/X0] in 50 (Hash=64MB)
AutoTurbo-Suche nach 1. Spezial-Matt [C0/R1/K2/P0/X0] in 50 (Hash=64MB)
AutoTurbo-Suche nach 1. Spezial-Matt [C0/R2/K2/P0/X0] in 50 (Hash=64MB)
AutoTurbo-Suche nach 1. Spezial-Matt [C0/R-2/K2/P0/X0] in 50 (Hash=64MB)
AutoTurbo-Suche nach 1. Spezial-Matt [C0/R3/K2/P0/X0] in 50 (Hash=64MB)
AutoTurbo-Suche nach 1. Spezial-Matt [C0/R-3/K2/P0/X0] in 50 (Hash=64MB)
AutoTurbo-Suche nach 1. Spezial-Matt [C0/R0/K2/P1/X0] in 50 (Hash=64MB)
AutoTurbo-Suche nach 1. Spezial-Matt [C0/R0/K2/P2/X0] in 50 (Hash=64MB)
20/50 00:11 3.794.730 420.142 +M20 9.Kg7-f7
20/20 00:11 4.057.716 411.533 +M20 9.Kg7-f7 Bd1-h5+ 10.Kf7-f8 Kb8-a8 11.Ne7xc8 Ka8-b8 12.Nc8-a7 Bh5-g4 13.Kf8-e8 Bg4-h3 14.Ke8-d8 Bh3-g4 15.Na7-c8 Bg4-h5 16.Nc8-e7 Bh5-f7 17.Ne7-f5 Bf7-g8 18.Nf5-d4 Bg8-f7 19.Nd4-f3 Bf7-g8 20.Nf3-e5 Bg8-e6 21.Ne5xd7+ Kb8-a8 22.Nd7-c5 Be6-d5 23.Kd8-c7 Bd5-e6 24.Nc5xb7 Be6-f5 25.Nb7-c5 Bf5-e4 26.d6-d7 Be4-f5 27.d7-d8Q+ Bf5-c8 28.Qd8xc8+
Matt in 20 gefunden ! (1. Lösung in 00:09)
20/20 00:11 4.057.716 411.533 +M20 9.Kg7-f7 Bd1-h5+ 10.Kf7-f8 Kb8-a8 11.Ne7xc8 Ka8-b8 12.Nc8-a7 Bh5-g4 13.Kf8-e8 Bg4-h3 14.Ke8-d8 Bh3-g4 15.Na7-c8 Bg4-h5 16.Nc8-e7 Bh5-f7 17.Ne7-f5 Bf7-g8 18.Nf5-d4 Bg8-f7 19.Nd4-f3 Bf7-g8 20.Nf3-e5 Bg8-e6 21.Ne5xd7+ Kb8-a8 22.Nd7-c5 Be6-d5 23.Kd8-c7 Bd5-e6 24.Nc5xb7 Be6-f5 25.Nb7-c5 Bf5-e4 26.d6-d7 Be4-f5 27.d7-d8Q+ Bf5-c8 28.Qd8xc8+
Michael
http://www.playwitharena.com
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Re: a hard test position for computers that I composed
OK I see - finally dual version of Chest
Jouni
Jouni
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Re: a hard test position for computers that I composed
Nueva partida
k1b5/1p1p4/p1bP4/PP6/8/6N1/8/K7 w - - 0 1
Analysis by Zappa Mexico II x64:
1.b6 Af3 2.Rb2 Ag4 3.Rc3 Rb8 4.Rd3 Ae6 5.Rd4 Ah3 6.Ch5 Ag4 7.Cf4 Ad1 8.Re5 Ac2 9.Rf6 Ae4 10.Rg7 Ac2 11.Rf7 Ab1 12.Re8 Aa2 13.Cg6 Ra8 14.Rd8 Ac4 15.Ce7 Rb8 16.Cxc8 Ae6 17.Ce7 Af7 18.Rxd7 Ah5 19.Rd8 Ae2 20.d7 Ab5 21.Cc8 Aa4 22.Re7 Axd7 23.Rxd7 Ra8 24.Rd8 Rb8 25.Ce7 Ra8 26.Cc6 bxc6 27.Rc8 c5 28.b7+ Ra7 29.b8D#
+- (5.14) Profundidad: 31/1 00:00:00 0kN
1.b6 Af3 2.Rb2 Ag4 3.Rc3 Rb8 4.Rd3 Ae6 5.Rd4 Ah3 6.Ch5 Ag4 7.Cf4 Ad1 8.Re5 Ac2 9.Rf6 Ae4 10.Rg7 Ac2 11.Rf7 Ab1 12.Re8 Aa2 13.Cg6 Ra8 14.Rd8 Ac4 15.Ce7 Rb8 16.Cxc8 Ae6 17.Ce7 Af7 18.Rxd7 Ah5 19.Rd8 Ae2 20.d7 Ab5 21.Cc8 Aa4 22.Re7 Axd7 23.Rxd7 Ra8 24.Rd8 Rb8 25.Ce7 Ra8 26.Cc6 bxc6 27.Rc8 c5 28.b7+ Ra7 29.b8D#
+- (5.14) Profundidad: 31/72 00:00:10 44910kN, tb=16634
1.b6 Af3 2.Rb2 Ag4 3.Rc3 Rb8 4.Rd3 Ae6 5.Rd4 Ah3 6.Ch5 Ag4 7.Cf4 Ad1 8.Re5 Ac2 9.Rf6 Ae4 10.Rg7 Ra8 11.Rf8 Rb8 12.Rf7 Ah1 13.Cg6 Ad5+ 14.Re8 Aa2 15.Ce7 Ra8 16.Cxc8 Ae6 17.Rd8 Rb8 18.Ce7 Af7 19.Rxd7 Ah5 20.Rd8 Ae2 21.d7 Ab5 22.Cc8 Aa4 23.Re7 Axd7 24.Rxd7 Ra8 25.Rd8 Rb8 26.Ce7 Ra8 27.Cc6 bxc6 28.Rc8 c5 29.b7+ Ra7 30.b8D#
+- (5.14) Profundidad: 32/72 00:00:16 74959kN, tb=16643
1.b6 Af3 2.Rb2 Ag4 3.Rc3 Rb8 4.Rd3 Ae6 5.Rd4 Ah3 6.Ch5 Ag4 7.Cf4 Ad1 8.Re5 Ac2 9.Rf6 Ae4 10.Rg7 Ra8 11.Rf8 Rb8 12.Rf7 Ah1 13.Cg6 Ad5+ 14.Re8 Aa2 15.Ce7 Ra8 16.Cxc8 Ae6 17.Rd8 Rb8 18.Ce7 Af7 19.Rxd7 Ah5 20.Rd8 Ae2 21.d7 Ab5 22.Cc8 Aa4 23.Re7 Axd7 24.Rxd7 Ra8 25.Rd8 Rb8 26.Ce7 Ra8 27.Cc6 bxc6
+- (5.14) Profundidad: 32/72 00:00:58 274mN, tb=59411
1.b6 Af3 2.Rb2 Ag4 3.Rc3 Rb8 4.Rd3 Ae6 5.Ce2 Af5+ 6.Rd4 Ah7 7.Cf4 Ag8 8.Re5 Ah7 9.Rf6 Ae4 10.Re7 Ra8 11.Rf8 Rb8 12.Rf7 Ah1 13.Cg6 Ad5+ 14.Re8 Aa2 15.Ce7 Ra8 16.Cxc8 Ae6 17.Rd8 Rb8 18.Ce7 Af7 19.Rxd7 Ah5 20.Rd8 Ae2 21.d7 Ab5 22.Cc8 Aa4 23.Re7 Axd7 24.Rxd7 Ra8 25.Rd8 Rb8 26.Ce7 Ra8 27.Cc6 bxc6
+- (11.13) Profundidad: 33/72 00:01:14 379mN, tb=59412
k1b5/1p1p4/p1bP4/PP6/8/6N1/8/K7 w - - 0 1
Analysis by Zappa Mexico II x64:
1.b6 Af3 2.Rb2 Ag4 3.Rc3 Rb8 4.Rd3 Ae6 5.Rd4 Ah3 6.Ch5 Ag4 7.Cf4 Ad1 8.Re5 Ac2 9.Rf6 Ae4 10.Rg7 Ac2 11.Rf7 Ab1 12.Re8 Aa2 13.Cg6 Ra8 14.Rd8 Ac4 15.Ce7 Rb8 16.Cxc8 Ae6 17.Ce7 Af7 18.Rxd7 Ah5 19.Rd8 Ae2 20.d7 Ab5 21.Cc8 Aa4 22.Re7 Axd7 23.Rxd7 Ra8 24.Rd8 Rb8 25.Ce7 Ra8 26.Cc6 bxc6 27.Rc8 c5 28.b7+ Ra7 29.b8D#
+- (5.14) Profundidad: 31/1 00:00:00 0kN
1.b6 Af3 2.Rb2 Ag4 3.Rc3 Rb8 4.Rd3 Ae6 5.Rd4 Ah3 6.Ch5 Ag4 7.Cf4 Ad1 8.Re5 Ac2 9.Rf6 Ae4 10.Rg7 Ac2 11.Rf7 Ab1 12.Re8 Aa2 13.Cg6 Ra8 14.Rd8 Ac4 15.Ce7 Rb8 16.Cxc8 Ae6 17.Ce7 Af7 18.Rxd7 Ah5 19.Rd8 Ae2 20.d7 Ab5 21.Cc8 Aa4 22.Re7 Axd7 23.Rxd7 Ra8 24.Rd8 Rb8 25.Ce7 Ra8 26.Cc6 bxc6 27.Rc8 c5 28.b7+ Ra7 29.b8D#
+- (5.14) Profundidad: 31/72 00:00:10 44910kN, tb=16634
1.b6 Af3 2.Rb2 Ag4 3.Rc3 Rb8 4.Rd3 Ae6 5.Rd4 Ah3 6.Ch5 Ag4 7.Cf4 Ad1 8.Re5 Ac2 9.Rf6 Ae4 10.Rg7 Ra8 11.Rf8 Rb8 12.Rf7 Ah1 13.Cg6 Ad5+ 14.Re8 Aa2 15.Ce7 Ra8 16.Cxc8 Ae6 17.Rd8 Rb8 18.Ce7 Af7 19.Rxd7 Ah5 20.Rd8 Ae2 21.d7 Ab5 22.Cc8 Aa4 23.Re7 Axd7 24.Rxd7 Ra8 25.Rd8 Rb8 26.Ce7 Ra8 27.Cc6 bxc6 28.Rc8 c5 29.b7+ Ra7 30.b8D#
+- (5.14) Profundidad: 32/72 00:00:16 74959kN, tb=16643
1.b6 Af3 2.Rb2 Ag4 3.Rc3 Rb8 4.Rd3 Ae6 5.Rd4 Ah3 6.Ch5 Ag4 7.Cf4 Ad1 8.Re5 Ac2 9.Rf6 Ae4 10.Rg7 Ra8 11.Rf8 Rb8 12.Rf7 Ah1 13.Cg6 Ad5+ 14.Re8 Aa2 15.Ce7 Ra8 16.Cxc8 Ae6 17.Rd8 Rb8 18.Ce7 Af7 19.Rxd7 Ah5 20.Rd8 Ae2 21.d7 Ab5 22.Cc8 Aa4 23.Re7 Axd7 24.Rxd7 Ra8 25.Rd8 Rb8 26.Ce7 Ra8 27.Cc6 bxc6
+- (5.14) Profundidad: 32/72 00:00:58 274mN, tb=59411
1.b6 Af3 2.Rb2 Ag4 3.Rc3 Rb8 4.Rd3 Ae6 5.Ce2 Af5+ 6.Rd4 Ah7 7.Cf4 Ag8 8.Re5 Ah7 9.Rf6 Ae4 10.Re7 Ra8 11.Rf8 Rb8 12.Rf7 Ah1 13.Cg6 Ad5+ 14.Re8 Aa2 15.Ce7 Ra8 16.Cxc8 Ae6 17.Rd8 Rb8 18.Ce7 Af7 19.Rxd7 Ah5 20.Rd8 Ae2 21.d7 Ab5 22.Cc8 Aa4 23.Re7 Axd7 24.Rxd7 Ra8 25.Rd8 Rb8 26.Ce7 Ra8 27.Cc6 bxc6
+- (11.13) Profundidad: 33/72 00:01:14 379mN, tb=59412
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Re: a hard test position for computers that I composed
Since the position is illegal, I believe there is a correction needed.
[D]k1b5/1p1p4/p1bP4/PP6/8/6N1/8/K7 w - - 0 1 bm b6
???
George Tsavdaris wrote:
The programs were successful only on some types of positions, but really stupid about others. Despite repeated efforts by talented researchers and programmers, it failed time after time, in OTB play.
We aren't using alpha-beta and exhaustive searches because we like it. We're using them because everything else, has fallen far short of it.
[D]k1b5/1p1p4/p1bP4/PP6/8/6N1/8/K7 w - - 0 1 bm b6
???
George Tsavdaris wrote:
That was tried for several years, but found wanting. Indeed, AI was seen by many as the superstar of the future for chess programs.I wonder how difficult is to program engines for a primitive kind of planning like that Uri has shown. Primitive because it's simple and straightforward.
The programs were successful only on some types of positions, but really stupid about others. Despite repeated efforts by talented researchers and programmers, it failed time after time, in OTB play.
We aren't using alpha-beta and exhaustive searches because we like it. We're using them because everything else, has fallen far short of it.
Last edited by Dave Mitchell on Sat Jan 15, 2011 4:27 am, edited 1 time in total.