Author: Ed Schröder
Date: 10:36:30 10/04/97
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On October 04, 1997 at 12:06:33, Ed Schröder wrote: >I have taken some tactical positions from my database. > >They are not so difficult except one... > >I call the set CCC-I > >Rules... >1.. Program should find the complete solution within 5 minutes. >2.. "am" means avoid move (move to avoid) >3.. "bm" means best move (move to find) >4.. "M15 or M18" means a mate in xx should be found. > >The 11 positions... > >2rqk2r/pb1nbp1p/4p1p1/1B1n4/Np1N4/7Q/PP3PPP/R1B1R1K1 w kq - bm Rxe6; >r1bq1rk1/3nbppp/p2pp3/6PQ/1p1BP2P/2NB4/PPP2P2/2KR3R w - - bm Bxg7; >2kr4/ppq2pp1/2b1pn2/2P4r/2P5/3BQN1P/P4PP1/R4RK1 b - - bm Ng4!; >r1bqr1k1/pp1n1ppp/5b2/4N1B1/3p3P/8/PPPQ1PP1/2K1RB1R w - - bm Nxf7; >3r4/2r5/p3nkp1/1p3p2/1P1pbP2/P2B3R/2PRN1P1/6K1 b - - bm Rc3!!; >6k1/p3b1np/6pr/6P1/1B2p2Q/K7/7P/8 w - - am Qxh6??; >3b4/p3P1q1/P1n2pr1/4p3/2B1n1Pk/1P1R4/P1p3KN/1N6 w - - bm Rh3+ M15; >7r/8/pB1p1R2/4k2q/1p6/1Pr5/P5Q1/6K1 w - - bm Bd4+ M15; >3r1r1k/1b4pp/ppn1p3/4Pp1R/Pn5P/3P4/4QP2/1qB1NKR1 w - - bm Rxh7+ M18; >1k2r2r/pbb2p2/2qn2p1/8/PP6/2P2N2/1Q2NPB1/R4RK1 b - - bm Qxf3; >r6k/6R1/p4p1p/2p2P1P/1pq1PN2/6P1/1PP5/2KR4 w - - bm b3!; > >Especially "am Qxh6??" is a killer. > >I will post another set CCC-II with very hard positions later. > >- Ed - I have made one little mistake in CCC-I 1k2r2r/pbb2p2/2qn2p1/8/PP6/2P2N2/1Q2NPB1/R4RK1 b - - bm Qxf3; should be: 1k2r2r/pbb2p2/2qn2p1/8/PP6/2P2N2/1Q2NPB1/R4RK1 b - - bm Qxf3 M7; So the whole correct CCC-I set again... 2rqk2r/pb1nbp1p/4p1p1/1B1n4/Np1N4/7Q/PP3PPP/R1B1R1K1 w kq - bm Rxe6; r1bq1rk1/3nbppp/p2pp3/6PQ/1p1BP2P/2NB4/PPP2P2/2KR3R w - - bm Bxg7; 2kr4/ppq2pp1/2b1pn2/2P4r/2P5/3BQN1P/P4PP1/R4RK1 b - - bm Ng4!; r1bqr1k1/pp1n1ppp/5b2/4N1B1/3p3P/8/PPPQ1PP1/2K1RB1R w - - bm Nxf7; 3r4/2r5/p3nkp1/1p3p2/1P1pbP2/P2B3R/2PRN1P1/6K1 b - - bm Rc3!!; 6k1/p3b1np/6pr/6P1/1B2p2Q/K7/7P/8 w - - am Qxh6??; 3b4/p3P1q1/P1n2pr1/4p3/2B1n1Pk/1P1R4/P1p3KN/1N6 w - - bm Rh3+ M15; 7r/8/pB1p1R2/4k2q/1p6/1Pr5/P5Q1/6K1 w - - bm Bd4+ M15; 3r1r1k/1b4pp/ppn1p3/4Pp1R/Pn5P/3P4/4QP2/1qB1NKR1 w - - bm Rxh7+ M18; 1k2r2r/pbb2p2/2qn2p1/8/PP6/2P2N2/1Q2NPB1/R4RK1 b - - bm Qxf3; r6k/6R1/p4p1p/2p2P1P/1pq1PN2/6P1/1PP5/2KR4 w - - bm b3!; And the rules again... 1.. Program should find the complete solution within 5 minutes. 2.. "am" means avoid move (move to avoid) 3.. "bm" means best move (move to find) 4.. "M15 or M18" means a mate in xx should be found. Results for Rebel9 PII/266 bm Rxe6; 2:09 bm Bxg7; 0:18 bm Ng4!; 0:42 bm Nxf7; 1:07 bm Rc3!!; not found am Qxh6??; not found bm Rh3+ M15; 0:44 bm Bd4+ M15; not found bm Rxh7 M16; 0:48 (Rebel9 says Mate in 16, correct?) bm Qxf3 M7; 1:09 bm b3!; 0:07 So Rebel9 got 8 out of 11. - Ed -
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