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This item is a game information page
It belongs to categories: Orthodox chess, 
It was last modified on: 2010-01-10
 By Joe  Joyce. Great Shatranj. Great Shatranj. (10x8, Cells: 80) [All Comments] [Add Comment or Rating]
H.G.Muller wrote on 2008-04-25 UTC
After 150 games the Ministers lost to the High Priests by 42% (47+, 71-, 32=). That is an excess score for the High Priests of 8%, about 2/3 of the Pawn-odds excess score. That would suggest a High Priest is about 33 cP stronger than a Minister. Because the difference is so small, preliminary tests left me in the dark as to which piece was stronger, so in the test mentioned above I had to run them as exactly equal. This is the safest thing for not producing any self-fulfilling bias in favor of one or the other, and thus reliably determine who is strongest. (Note that the statistical error over 150 games is only 3.56%, so that the probability of an 8% swing (2.24 sigma) between equal pieces is only ~2%.) The disadvantage of exactly equal programmed piece values (625), however, is that any difference in strength is not fully expressed, because the side with the better piece will often trade it for the inferior one, not realizing it is better, annihilating his advantage. So I am rerunning the test now with the High-Priest programmed as 650.