Author: Miguel A. Ballicora
Date: 19:48:25 10/09/01
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On October 09, 2001 at 19:19:13, Slater Wold wrote: >On October 09, 2001 at 11:24:39, Miguel A. Ballicora wrote: > >>On October 09, 2001 at 07:49:17, Slater Wold wrote: >> [snip] >>Can you confirm this? the question is white plays 1.g5, can black find >>something to save the game? > >Nope. After g5: [snip] so, that position is gone. >>>r4rk1/1bp3pp/p3Pp2/1pb2P1Q/5B1N/1Pq1p1PK/P6P/R2R4 w - - acd 15; acn 226843577; >>>acs 3603; bm Rd7; ce 388; id wcsac0408; pv Rac1 Qb4 Rd7 Bc8 Rxc7 Be7 Bxe3 Qa3 >>>R1c5 Qxa2 Rxe7 Qxb3 Bf4 Qd3; >> >>I can see that this position is problematic. Rd7 is certainly the best move >>when I checked it, >>IIRC 1... Qxa1 2. Rxg7+ Kxg7 3. Bh6+ Kh8 4. Ng6+ hxg6 5. fxg6 and White threats >>Bg7 and black cannot stop it but delaying it throwing material). >>However, Rac1 is a winner too. The only problem is that I like this position >>because I believe that we can see if a program has more or less problems with >>horizon effects. I will check if I can modify slightly the position to avoid >>the cook (I will try a white pawn in c2 rather than in a2) > >Ok. Becuase I believe Rac1 is a cook also. Position eliminated, better to be safe. [snip] >>Hopefully, we can get at least 30 good clean tactical test positions that are >>not extremely easy or difficult out of the 44 I selected from WCSAC. The test >>"as is" with the 1000 positions is unusable. 800 positions are too easy >>and there are _many_ with cooks and transpositions. > >Ok, sounds fine. Just let me know. Ok, 8 accepted and 2 eliminated for now. There it goes 10 more positions. There some that are very good but I have some doubts about few. rnb2r1k/pp4pp/2p1Pp2/3p1P2/4N2q/1BB5/P3Q2P/6RK w - - bm Nxf6; id "WCSAC.0496"; r1b1r1k1/pp3p1p/1q2p1pQ/2b1P1B1/8/P2B3P/1P3PP1/2R1R1K1 w - - bm Rxc5; id "WCSAC.0506"; 4k1r1/2pq2p1/pp1pNn1r/3PnQ1p/2P5/6PP/PP2R1B1/4R1K1 w - - bm Rxe5; id "WCSAC.0519"; 3r1b2/p4bkp/1p1P1p2/r3p1p1/2q1N3/2N2P2/1P1R2PP/2QR3K w - - bm Nxf6; id "WCSAC.0550"; 2r2rk1/pp1b1ppp/1qn1p3/3pP3/3P2n1/2PB1R2/PP1N2PP/R1BQ3K w - - bm Bxh7+; id "WCSAC.0561"; r4rk1/ppp3p1/2bpq3/5pPR/3Qn3/5N2/PPP2PP1/2K4R w - - bm Ne5; id "WCSAC.0568"; 2rr1b2/8/ppkq1pP1/3pp3/2p5/2BPPpP1/BQ3P2/1RRN1n1K b - - bm Qb8; id "WCSAC.0580"; k1q1bbrr/1p3pp1/p7/5n1n/PP2N2p/1NP5/1BB1Q1PP/2R2R1K b - - bm Bb5; id "WCSAC.0582"; 4rrk1/ppp2p1p/3q1B2/2bpp3/R7/1PPb1Q2/1P1N1PPP/4R1K1 w - - bm Ne4; id "WCSAC.0589"; 5b2/1k6/1p2bB2/5pK1/1p6/p4P2/P6P/2N5 b - - bm Bxa2; id "WCSAC.0665"; Regards, Miguel > >> >>Regards, >>Miguel >> >> >> >>> >>> >>> >>>Slate
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