Author: Ed Trice
Date: 11:33:09 01/18/04
Go up one level in this thread
Hello Michel, >Hello Ed, > >On a 80 square board the KNBK should take ofcourse longer. >You found this correctly as your number maximum mate value (40) is bigger as in >plain chess (33). > Yes, that is one good result so far :) >You probably found this usefull url already: >ftp://ftp.cis.uab.edu/pub/hyatt/TB/tbs/kbnk.tbs > Actually, I had forgotten about the TBS files, thanks for reminding me! >Not all namilov values are multiplies of 4 either and the number of mate in 2's >is also lesser as the mate in one's. > >I think in mate #1 positions it is possible to choose between the knight and the >bishop to give mate. For mate #2 the mate has to be given always by the bishop >and in the coloured square (corner) of this bishop. > The mate in 1 can also be given the king as I found out. Here are mates in 1 given by the Knight, Bishop, and King: Knight mate in 1 ----------------------------------------------------------------------- | bk | WB | WK | | | | | | | | | | | | | | | | | | | | a8 | b8 | c8 | d8 | e8 | f8 | g8 | h8 | i8 | j8 | ----------------------------------------------------------------------- | | | | | | | | | | | | | | | | | | | | | | | a7 | b7 | c7 | d7 | e7 | f7 | g7 | h7 | i7 | j7 | ----------------------------------------------------------------------- | | | | | | | | | | | | | | | | | | | | | | | a6 | b6 | c6 | d6 | e6 | f6 | g6 | h6 | i6 | j6 | ----------------------------------------------------------------------- | | WN | | | | | | | | | | | | | | | | | | | | | a5 | b5 | c5 | d5 | e5 | f5 | g5 | h5 | i5 | j5 | ----------------------------------------------------------------------- | | | | | | | | | | | | | | | | | | | | | | | a4 | b4 | c4 | d4 | e4 | f4 | g4 | h4 | i4 | j4 | ----------------------------------------------------------------------- | | | | | | | | | | | | | | | | | | | | | | | a3 | b3 | c3 | d3 | e3 | f3 | g3 | h3 | i3 | j3 | ----------------------------------------------------------------------- | | | | | | | | | | | | | | | | | | | | | | | a2 | b2 | c2 | d2 | e2 | f2 | g2 | h2 | i2 | j2 | ----------------------------------------------------------------------- | | | | | | | | | | | | | | | | | | | | | | | a1 | b1 | c1 | d1 | e1 | f1 | g1 | h1 | i1 | j1 | ----------------------------------------------------------------------- Bishop mate in 1 ----------------------------------------------------------------------- | bk | | WN | | | | | | | | | | | | | | | | | | | | a8 | b8 | c8 | d8 | e8 | f8 | g8 | h8 | i8 | j8 | ----------------------------------------------------------------------- | | | WK | | | | | | | | | | | | | | | | | | | | a7 | b7 | c7 | d7 | e7 | f7 | g7 | h7 | i7 | j7 | ----------------------------------------------------------------------- | WB | | | | | | | | | | | | | | | | | | | | | | a6 | b6 | c6 | d6 | e6 | f6 | g6 | h6 | i6 | j6 | ----------------------------------------------------------------------- | | | | | | | | | | | | | | | | | | | | | | | a5 | b5 | c5 | d5 | e5 | f5 | g5 | h5 | i5 | j5 | ----------------------------------------------------------------------- | | | | | | | | | | | | | | | | | | | | | | | a4 | b4 | c4 | d4 | e4 | f4 | g4 | h4 | i4 | j4 | ----------------------------------------------------------------------- | | | | | | | | | | | | | | | | | | | | | | | a3 | b3 | c3 | d3 | e3 | f3 | g3 | h3 | i3 | j3 | ----------------------------------------------------------------------- | | | | | | | | | | | | | | | | | | | | | | | a2 | b2 | c2 | d2 | e2 | f2 | g2 | h2 | i2 | j2 | ----------------------------------------------------------------------- | | | | | | | | | | | | | | | | | | | | | | | a1 | b1 | c1 | d1 | e1 | f1 | g1 | h1 | i1 | j1 | ----------------------------------------------------------------------- King mate in 1 ----------------------------------------------------------------------- | bk | | WN | | | | | | | | | | | | | | | | | | | | a8 | b8 | c8 | d8 | e8 | f8 | g8 | h8 | i8 | j8 | ----------------------------------------------------------------------- | | | | | | | | | | | | | | | | | | | | | | | a7 | b7 | c7 | d7 | e7 | f7 | g7 | h7 | i7 | j7 | ----------------------------------------------------------------------- | | | WK | | | | | | | | | | | | | | | | | | | | a6 | b6 | c6 | d6 | e6 | f6 | g6 | h6 | i6 | j6 | ----------------------------------------------------------------------- | | | | WB | | | | | | | | | | | | | | | | | | | a5 | b5 | c5 | d5 | e5 | f5 | g5 | h5 | i5 | j5 | ----------------------------------------------------------------------- | | | | | | | | | | | | | | | | | | | | | | | a4 | b4 | c4 | d4 | e4 | f4 | g4 | h4 | i4 | j4 | ----------------------------------------------------------------------- | | | | | | | | | | | | | | | | | | | | | | | a3 | b3 | c3 | d3 | e3 | f3 | g3 | h3 | i3 | j3 | ----------------------------------------------------------------------- | | | | | | | | | | | | | | | | | | | | | | | a2 | b2 | c2 | d2 | e2 | f2 | g2 | h2 | i2 | j2 | ----------------------------------------------------------------------- | | | | | | | | | | | | | | | | | | | | | | | a1 | b1 | c1 | d1 | e1 | f1 | g1 | h1 | i1 | j1 | ----------------------------------------------------------------------- >I am not a ultra strong chessplayer but I know this endgame quite well. So I can >test your database. A nice GUI would be very helpfully. > Any of the databases that I can verify will work with the next release of the Gothic Vortex program. Just put the database file into the same directory as the executable, and you can use the setup feature to test the database. This is one week away, at least.
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