Author: Don Dailey
Date: 12:19:08 01/18/98
Bob, Amir, others, I ran the full suite to approx 30 seconds. I assume Amir is planning on running the set too to give us 3 programs. Is that correct? We don't want too many running because we may end up with too many easy problems since we want everyone to agree on the easy ones. But we want everyone to find cooks, multiple solutions and other difficulties that will allow us to throw out bad problems. Bob Hyatt will be the final judge! Post your positions and why you think it's bad so Bob can rule on it and we can all see. I also recommend we partition the set so that we have a hard group. ( ccc-hard.epd ) This could be any problems where none of the programs solve in the 10 second period. When I ran the set I identified 3 flaky positions. I define "flaky" as any position that is "solved" and unsolved once or more (whether it's solved again or not.) I do not count solutions on the 1st iteration because it is normal to see bad moves before finding good ones. I haven't checked them out yet so maybe my program has a bug or something but here they are for everyones inspection: 3rr1k1/1p1qb2p/pP4p1/2p2p2/4RQ2/3P4/1PPB2PP/4R1K1 w - - bm Bc3; id "ECM.420"; 6k1/rnqb3p/5ppQ/2pPp3/p1N1P3/2PB3P/5PP1/1R4K1 w - - bm f4; id "ECM.422"; 1q4k1/p3rppp/3b1n2/8/5P2/4P3/PP1B3P/RNQ3K1 b - - bm Bxf4; id "ECM.505"; Chances are if I ran deeper I would find more. Other programs should check for this too, I'll bet each program finds different ones. - Don
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