Author: Bas Hamstra
Date: 15:32:58 02/25/04
Go up one level in this thread
On February 25, 2004 at 13:42:11, Leen Ammeraal wrote:
>In general, I very much agree with Bas. I use Arena all the time
>and I am very glad that I can see the table of results during
>the tournament, just to mention one nice point.
>
>However, in the following position, List, installed as a WinBoard engine and
>playing White, claimed a draw due to insufficient
>material, and Arena agreed, although Queen
>(installed as a UCI engine and playing Black)
>had rightly indicated that it could win:
>
>8/8/4K3/8/2p1k2N/8/8/8 b - - 0 60
>
>This problem also occurred in some other games between
>List and Queen, and it occurred also in a previous
>Arena version. I reported this in the Arena forum
>but the bug was not fixed. When an engine makes an incorrect
>draw claim, Arena should not grant it, in my opinion.
>
>Below is a fragment of the debug file showing
>the problem.
>
>Leen Ammeraal
>
>42239579<1:info depth 8 time 0 nodes 51 score cp 32731 pv d4e4
>42239610<1:info depth 9 time 0 nodes 58 score cp 32731 pv d4e4
>42239641<1:info depth 10 time 0 nodes 65 score cp 32731 pv d4e4
>42239672<1:Movenr: 59 (black)
>42239672<1:info depth 10 time 0 nodes 70 score cp 32731 pv d4e4
>42239704<1:bestmove d4e4
>42239704*1*Found move:Kd4-e4
>42239985*2*Start calc, move no: 118
>42240344>2:time 6850
>42240344>2:otim 9860
>42240344>2:d4e4
>42240391<2: 1 0 0 0 f3h4
>42240422<2: 1 17 1 0 f3e5
>42240454<2: 1 17 1 0 f3e5
>42240485<2: 2 -23 1 0 -- f3e5
>42240516<2: 2 -56 1 0 f3e5 c4c3
>42240547<2: 2 -16 1 0 ++ f3h4
>42240594<2: 2 0 3 0 f3h4
>42240625<2: 2 0 3 0 f3h4
>42240657<2: 3 0 3 0 f3h4
>42240719<2: 3 0 3 0 f3h4
>42240750<2: 4 0 4 0 f3h4
>42240782<2: 4 0 4 0 f3h4
>42240813<2: 5 0 4 0 f3h4
>42240844<2: 5 0 4 0 f3h4
>42240891<2: 6 0 4 0 f3h4
>42240922<2: 6 0 6 0 f3h4
>42240985<2: 7 0 6 0 f3h4
>42241016<2: 7 0 6 1 f3h4
>42241047<2: 8 0 7 1 f3h4
>42241079<2: 8 0 7 2 f3h4
>42241110<2: 9 0 7 2 f3h4
>42241141<2: 9 0 7 4 f3h4
>42241172<2: 10 0 7 4 f3h4
>42241219<2: 10 0 9 8 f3h4
>42241250<2: 11 0 9 8 f3h4
>42241282<2: 11 0 10 15 f3h4
>42241313<2: 12 0 10 15 f3h4
>42241344<2: 12 0 10 28 f3h4
>42241375<2: 13 0 12 28 f3h4
>42241422<2: 13 0 14 55 f3h4
>42241485<2: 14 0 14 55 f3h4
>42241547<2: 14 0 20 178 f3h4
>42241579<2: 15 0 20 178 f3h4
>42241610<2: 15 0 34 498 f3h4
>42241641<2: 16 0 34 498 f3h4
>42241672<2: 16 0 60 1080 f3h4
>42241704<2: 17 0 60 1080 f3h4
>42241735<2: 17 0 98 1941 f3h4
>42241766<2: 18 0 100 1941 f3h4
>42241954<2: 18 0 156 3319 f3h4
>42241985<2: 19 0 157 3319 f3h4
>42242969<2: 19 0 257 5898 f3h4
>42243000<2:move f3h4
>42243000*2*Found move:Nf3xh4
>42243094<2:1/2-1/2 {Insufficient material}
>42243094*2*engine sets a draw detected...
>42243297********Game end: ½-½ {Draw by mutual agreement}
>42243297********Last game finished draw in 60 moves
>
>
>Here is a fragment of the pgn file of this game:
>[Event "Arena tournament"]
>[Site "PRIVE-IQ4GF504L"]
>[Date "2004.02.21"]
>[Round "16"]
>[White "List"]
>[Black "Q243"]
>[Result "1/2-1/2"]
>[ECO "C45"]
>[Opening "Scotch Game"]
>[Time "06:45:27"]
>[Variation "Goering Gambit"]
>[TimeControl "40/120:40/120:40/120"]
>[Termination "normal"]
>[PlyCount "120"]
>[WhiteType "program"]
>[BlackType "program"]
>...
>56.Ke5 {(e6e5 c4c5 e5e4 c5c4
>e4e3 c6c5 h3f4 h4h3 f4h3) 0.00/16 2} c5 {(c6c5) 0.00/25} 57.Ke6 {(e5e6 c4d3 e6d5
>c5c4 h3f4 d3e3 d5c4) 0.00/16 2} Kd4 {(Kc4d4) M500/10} 58.Ng1 {(h3g1 d4d3 g1f3
>h4h3
>e6d5 c5c4 f3e5 d3c2 e5c4) 0.00/17 3} c4 {(c5c4) M500/10} 59.Nf3+ {(g1f3 d4e3
>f3h4)
>0.00/18 2} Ke4 {(Kd4e4) M500/10} 60.Nxh4 {(f3h4) 0.00/19 2} {Draw by mutual
>agreement} 1/2-1/2
I agree. I saw a case today (version 1.03) where I *suspect* Arena adjudicated a
lost endgame to a draw. Since neither engine showed a draw score, this is
probably false. But these are all easy to fix things I would think.
Bas.
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