Moderator: Ras
From Leo's website:Volker Pittlik wrote:... or with the draw detection tool?
Volker
According to the tablesbases that is a draw in maximum 16 moves. OTOH it is not a stalemate.Result :1/2-1/2 {stalemate}
Warning level :4
Final position: 7r/4k3/8/8/4BK2/4P3/8/8 w - - 0 90
Analyze result:* {no draw found}
No. The matches were run under Winboard (unless Leo has changed something recently, which I doubt), which means that there is no draw detection tool involved. Winboard just accepts draw claims from the engine, and instantly stops the game. These stalemate claims must be originating in Crafty; there is no other possibility. Leo's Windows binary of Crafty must be broken somehow.Volker Pittlik wrote:I couldn't reproduce these false draw claims. Possibly there was something wrong with version 22.0 (unlikely in my opinion) or with the draw detection tool?
I guess my post did serve some purpose.. I have never seen crafty doing the above things, so I was surprised when I saw them at Leo's site. Then again, I dont ever check the games for any errors, I just assume that Arena handles them correctly..Tord Romstad wrote:No. The matches were run under Winboard (unless Leo has changed something recently, which I doubt), which means that there is no draw detection tool involved. Winboard just accepts draw claims from the engine, and instantly stops the game. These stalemate claims must be originating in Crafty; there is no other possibility. Leo's Windows binary of Crafty must be broken somehow.Volker Pittlik wrote:I couldn't reproduce these false draw claims. Possibly there was something wrong with version 22.0 (unlikely in my opinion) or with the draw detection tool?
Because Leo doesn't seem to visit this forum often, it is probably better to continue the discussion on the WBEC forum.
Tord
I mean this: "Analyze result:* {no draw found}". That is from LGpgnver and it seems to be a "false negative" alarm.Tord Romstad wrote:... there is no draw detection tool involved. ... These stalemate claims must be originating in Crafty; there is no other possibility....
Why ? It's not a stalemate, it's not insificient material, it's not a repetition nor 50 moves rule. So "no draw found"Volker Pittlik wrote:I mean this: "Analyze result:* {no draw found}". That is from LGpgnver and it seems to be a "false negative" alarm.Tord Romstad wrote:... there is no draw detection tool involved. ... These stalemate claims must be originating in Crafty; there is no other possibility....
Volker