Author: Uri Blass
Date: 13:28:14 06/08/03
I want to find the mistakes of movei against
Sos in Leo's tournament and I may use them as test positions for future
versions.
Note that the problem of finding the losing mistake is often hard to find and it
is hard to know the exact point that the position became lost instead of
inferior.
I decided to try to find the point that movei lost material.
I have a version of yace only material and I gave it the position
after move 13 of white.
Yace(only material) use the following values for material:
Queen=10.01,Rook=5,Bishop=3.5,Knight=3.4,Pawn=0.8
Yace only finished 46 out of 53 moves to analyze and I will not give it to
finish iteration 14 but it seems that already at move 13 black is losing
material(yace only material cannot finish depth 14 even after more than 5
hours).
SOS 99.11.03 - Movei 0.08.068
[D]2kr3r/ppp1ppbp/2n3p1/7n/1qbPP3/2N1BNP1/PP3PBP/1R1QR1K1 b - - 0 1
Analysis by Yace 0.99.56:
13...Qxc3 14.bxc3 Bxa2
+- (5.81) Depth: 1 00:00:03
13...Nxg3 14.fxg3 Nxd4
+- (1.80) Depth: 1 00:00:03
13...Nxd4 14.Nxd4 Bxd4 15.Bxd4 Rxd4 16.Qxd4 Qxc3
± (0.80) Depth: 1 00:00:03
13...Bf8
= (0.00) Depth: 1 00:00:04
13...Bf8 14.Bg5
= (0.00) Depth: 2 00:00:04
13...Bf8 14.Bg5 Be6
= (0.00) Depth: 3 00:00:04
13...Bf8 14.Bg5 Be6 15.a4
= (0.00) Depth: 4 00:00:04
13...Bf8 14.Bg5 Be6 15.a4 Qd6
= (0.00) Depth: 5 00:00:04 17kN
13...Bf8 14.Bh3+ Kb8 15.g4 Nf6 16.e5 Nd5
= (0.00) Depth: 6 00:00:04 88kN
13...Bf8 14.d5 Kb8 15.a3 Qxa3 16.bxa3 Nf6
² (0.40) Depth: 7 00:00:05 391kN
13...Bf8 14.d5 a6 15.Ng5 Ne5 16.f4 Nd3 17.Nxf7
² (0.70) Depth: 7 00:00:05 391kN
13...Qb6 14.d5 Qa5 15.Bb6 axb6 16.Na4
² (0.69) Depth: 7 00:00:06 724kN
13...Qb6 14.d5 Qa6 15.g4 Bxc3 16.bxc3 Nf6 17.Nd2
= (0.10) Depth: 7 00:00:07 724kN
13...Qa5 14.d5 Bxc3 15.bxc3 Bxa2 16.dxc6 Rxd1 17.Rbxd1
= (0.09) Depth: 7 00:00:07 1042kN
13...Qa5 14.a3 Nf6 15.Nd2 Bd3 16.Bh3+ Kb8 17.Nb3
= (0.00) Depth: 7 00:00:07 1042kN
13...Qa5 14.Nd2 Qa6 15.Nxc4 Qxc4 16.Bh3+ Kb8 17.Bf1 Qe6 18.d5
= (0.10) Depth: 8 00:00:09 1369kN
13...Na5 14.a3 Qd6 15.Nd2 Bd3 16.Qxh5 gxh5 17.Nb5
= (0.09) Depth: 8 00:00:20 5166kN
13...Na5 14.a3 Qd6 15.Nd2 Bd3 16.Bh3+ Kb8 17.e5 Qa6
= (0.00) Depth: 8 00:00:20 5166kN
13...Na5 14.Bd2 Nc6 15.g4 Nf6 16.d5 Na5 17.Ne5 Rdf8 18.Nxc4
= (0.10) Depth: 9 00:00:34 9474kN
13...e6 14.g4 Nf6 15.Nd2 Nxd4 16.Nxc4 Qxc4 17.Qxd4 Rxd4 18.Bxd4
= (0.09) Depth: 9 00:01:26 25042kN
13...e6 14.g4 Nf6 15.Bh3 Kb8 16.a3 Qa5 17.e5 Ng8
= (0.00) Depth: 9 00:01:27 25501kN
13...e6 14.g4 Nf6 15.Bh3 Kb8 16.a3 Qa5 17.e5 Ng8 18.Nd2
= (0.00) Depth: 10 00:01:36 29516kN
13...e6 14.g4 Nf6 15.Bh3 Kb8 16.a3 Qa5 17.e5 Ng8 18.Nd2 Bd3
= (0.00) Depth: 11 00:02:38 60258kN
13...e6 14.g4 Nf6 15.Bh3 Kb8 16.a3 Qa5 17.e5 Ng8 18.Nd2 Bd3 19.Nb3
= (0.00) Depth: 12 00:05:50 153600kN
13...e6 14.g4 Nf6 15.Bh3 Kb8 16.a3 Qf8 17.e5 Ng8 18.Qc1 Bd3 19.Ra1 Re8
= (0.00) Depth: 13 00:13:26 366031kN
13...e6 14.a3 Qf8 15.Qa4 Ba6 16.e5 Bh6 17.b4 Bxe3 18.fxe3 Nf4 19.gxf4 Qxb4
20.axb4 Nxb4
² (0.40) Depth: 14 00:28:37 784069kN
13...e6 14.a3 Qb3 15.Ng5 Rd7 16.d5 exd5 17.Bh3 Qxd1 18.Bxd7+ Kxd7 19.Nxd1 dxe4
20.Nxe4 Nf6 21.Nxf6+ Bxf6
² (0.70) Depth: 14 00:43:24 1065081kN
13...Be6 14.d5 Bg4 15.dxc6 Rxd1 16.Nxd1
² (0.69) Depth: 14 03:14:56 109523kN
13...Be6 14.d5 Bg4 15.Qc2 Bxf3 16.Bxf3 Ne5 17.Be2 Qa5 18.Nb5
² (0.69) Depth: 14 03:21:57 271323kN
(Blass, Tel-Aviv 08.06.2003)
In the game movei did not find the best defence
and after 13...e6 14.a3 Qf8?(Qb3 was probably better) 15.Qa4 Ba6 16.Red1
Ne7?(Nb8 is probably better)
17.b4 c6 18.b5 got a clearly lost position.
Here is the full game(the match ended in 2-2)
[Event "WBEC4-1st Division"]
[Site "ATHLON-MP2200"]
[Date "2003.06.07"]
[Round "6.1"]
[White "SOS 99.11.03"]
[Black "Movei 0.08.068"]
[Result "1-0"]
[PlyCount "67"]
[EventDate "2003.??.??"]
[TimeControl "40/2400:0"]
1. d4 Nf6 2. c4 g6 3. g3 d5 4. cxd5 Qxd5 5. Nf3 Nc6 6. Nc3 Qa5 7. Bg2 Be6 8.
O-O O-O-O 9. e4 Bc4 10. Re1 Bg7 11. Bf4 Nh5 12. Be3 Qb4 13. Rb1 e6 14. a3 Qf8
15. Qa4 Ba6 16. Red1 Ne7 17. b4 c6 18. b5 cxb5 19. Nxb5 Kb8 20. Nxa7 Rd6 21. e5
Nd5 22. exd6 Kxa7 23. Ne5 Qxd6 24. Rxb7+ Kxb7 25. Rb1+ Ka7 26. Bxd5 Rb8 27.
Rxb8 exd5 28. Rb1 Nxg3 29. Nc6+ Qxc6 30. Qxc6 Ne2+ 31. Kh1 Bb5 32. Qxb5 Ng3+
33. hxg3 h6 34. Qa4# {Movei->White mates} 1-0
Uri
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Last modified: Thu, 15 Apr 21 08:11:13 -0700
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