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Fairy-MaxA computer program . Free open source chess variant software.[All Comments] [Add Comment or Rating]
💡📝H. G. Muller wrote on Sun, Jan 17, 2010 10:16 AM UTC:
The version of WinBoard I put on my website (4.20100116) should include this. Unfortunately, Fairy-Max itself does not support Analyze mode, (or any other form of pondering), or the Move-Now command. All these would require Fairy-Max to pay attention to input while it is thinking, and to do that requires different code for Windows and Linux. The lack of these features make the variation support of WinBoard less useful with Fairy-Max.

I would be very curious to know how Fairy-Max is doing against the Thai software. Also if you cn see obvious mistakes it makes. I guessed a value of 300 for the Silver (compared to P=100, M=181, N=450). Another parameter is the promotion bonus: in the last version I lowered that to 60 cP, in stead of using the logical 80 cP (which is the difference between the P and M values) to discourage it from trading Pawns by promoting by capturing a Pawn, and have the Med recaptured. (Or equivalently, promote a Pawn, have the Med captured, and the capture some other Pawn). In general it seems bad to do this, because you effectively trade a Pawn that could promote for another one (that likely could not). Lowering the promotion bonus should cure that. (But it has the undesired consequence that if the Med does get captured and the material gets even again, the score will not go back to zero.)