Author: Heiner Marxen
Date: 07:53:32 08/24/00
Go up one level in this thread
On August 23, 2000 at 19:14:54, Michel Langeveld wrote: >>On August 23, 2000 at 15:46:42, Michel Langeveld wrote: >> >>>Does someobdy know how to calculate the varation of the folowing epd: >>>RNBKQ2r/PPPPNQq1/8/8/5n1q/8/p1ppp3/rq1k1b2 w - - >>> >>>Please not the position look likes reversed but this is true because it's a >>>positon of a wild5-game. >>> >>>Michel Langeveld >> >>White is lost. Here is the relevant part of Chest output: >> >>CHEST version 3.19, 18-Dec-1999 >>Options = -x -sSLU >>Input file: 'i.ccc54' >>Reading job: >>W: Kd8 Qe8 Qf7 Ra8 Bc8 Nb8 Ne7 Pa7 Pb7 Pc7 Pd7 (11) >>B: Kd1 Qb1 Qg7 Qh4 Ra1 Rh8 Bf1 Nf4 Pa2 Pc2 Pd2 Pe2 (12) >>FEN: RNBKQ2r/PPPPNQq1/8/8/5n1q/8/p1ppp3/rq1k1b2 w - - >> >>After Nb8 - a6 ... >> Solution (in 2 moves): >> Qg7 : f7 >> >> Qxf7 Nc5 Qhxe7# >> -*- Ne6# >> >>After Nb8 - c6 ... >> Solution (in 2 moves): >> Qg7 : f7 >> >> Qxf7 Nd4 Qhxe7# >> -*- Ne6# > >Is it possible to get this output in a for which is get when you use the -b >option. But then including one of the possible defenses which leads to mate in >2? I'm not exactly sure what you want to know. If you want to use the -b option (EPD in, EPD out) you can do so: echo "RNBKQ2r/PPPPNQq1/8/8/5n1q/8/p1ppp3/rq1k1b2 w - - dm 2;" | chest -bx R1BKQ2r/PPPPNQq1/N7/8/5n1q/8/p1ppp3/rq1k1b2 b - - acn 261; acs 0; bm Qxf7; ce 32764; dm 2; pv Qxf7 b8=Q Ne6#; R1BKQ2r/PPPPNQq1/2N5/8/5n1q/8/p1ppp3/rq1k1b2 b - - acn 257; acs 0; bm Qxf7; ce 32764; dm 2; pv Qxf7 b8=Q Ne6#; RNBKQ2r/PPPPN1Q1/8/8/5n1q/8/p1ppp3/rq1k1b2 b - - acn 1; acs 0; bm Ne6#; ce 32766; dm 1; pv Ne6#; RNBKQQ1r/PPPPN1q1/8/8/5n1q/8/p1ppp3/rq1k1b2 b - - acn 1; acs 0; bm Ne6#; ce 32766; dm 1; pv Ne6#; RNBKQ2r/PPPPN1q1/5Q2/8/5n1q/8/p1ppp3/rq1k1b2 b - - acn 283; acs 0; bm Qgxf6 Qhxf6; ce 32764; dm 2; pv Qhxf6 Na6 Ne6#; RNBKQ2r/PPPPN1q1/8/5Q2/5n1q/8/p1ppp3/rq1k1b2 b - - acn 2; acs 0; bm Qgxe7# Qhxe7#; ce 32766; dm 1; pv Qhxe7#; RNBKQ2r/PPPPN1q1/8/8/5Q1q/8/p1ppp3/rq1k1b2 b - - acn 2; acs 0; bm Qgxe7# Qhxe7#; ce 32766; dm 1; pv Qhxe7#; RNBKQ1Qr/PPPPN1q1/8/8/5n1q/8/p1ppp3/rq1k1b2 b - - acn 306; acs 0; bm Qgxe7+ Qxg8 Rxg8; ce 32764; dm 2; pv Qgxe7+ Qxe7 Rxg8#; RNBKQ2r/PPPPN1q1/4Q3/8/5n1q/8/p1ppp3/rq1k1b2 b - - acn 1; acs 0; bm Nxe6#; ce 32766; dm 1; pv Nxe6#; RNBKQ2r/PPPPN1q1/8/3Q4/5n1q/8/p1ppp3/rq1k1b2 b - - acn 2; acs 0; bm Qgxe7# Qhxe7#; ce 32766; dm 1; pv Qhxe7#; RNBKQ2r/PPPPN1q1/8/8/2Q2n1q/8/p1ppp3/rq1k1b2 b - - acn 2; acs 0; bm Qgxe7# Qhxe7#; ce 32766; dm 1; pv Qhxe7#; RNBKQ2r/PPPPN1q1/8/8/5n1q/1Q6/p1ppp3/rq1k1b2 b - - acn 2; acs 0; bm Qgxe7# Qhxe7#; ce 32766; dm 1; pv Qhxe7#; RNBKQ2r/PPPPN1q1/8/8/5n1q/8/Q1ppp3/rq1k1b2 b - - acn 2; acs 0; bm Qgxe7# Qhxe7#; ce 32766; dm 1; pv Qhxe7#; RNBKQ2r/PPPPN1q1/6Q1/8/5n1q/8/p1ppp3/rq1k1b2 b - - acn 2; acs 0; bm Qgxe7# Qhxe7#; ce 32766; dm 1; pv Qhxe7#; RNBKQ2r/PPPPN1q1/8/7Q/5n1q/8/p1ppp3/rq1k1b2 b - - acn 3; acs 0; bm Ne6# Qgxe7# Qhxe7#; ce 32766; dm 1; pv Ne6#; RNBK1Q1r/PPPPNQq1/8/8/5n1q/8/p1ppp3/rq1k1b2 b - - acn 151; acs 0; bm Qxf7 Qxf8+ Rxf8+; ce 32764; dm 2; pv Rxf8+ Qe8 Ne6#; RNBK2Qr/PPPPNQq1/8/8/5n1q/8/p1ppp3/rq1k1b2 b - - acn 143; acs 0; bm Qxf7 Qxg8+ Rxg8+; ce 32764; dm 2; pv Rxg8+ Qe8 Ne6#; RNBK3Q/PPPPNQq1/8/8/5n1q/8/p1ppp3/rq1k1b2 b - - acn 134; acs 0; bm Qgxh8+; ce 32764; dm 2; pv Qgxh8+ Qe8 Ne6#; But, those lines that fail, just do not produce any output (currently) with -b (a future version of Chest will be able to also list the unsolved cases as EPD-comments or some such). HTH, HAND, Heiner
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