Author: Reinhard Scharnagl
Date: 23:39:19 06/18/04
Hello all, please check my new proposal, whether it could be interesting to the computer chess scene, and whether it would conflict any claimed patents. Regards, Reinhard. CAPABLANCA RANDOM CHESS This definition of CRC should cover the following goals: a) creating an interesting drosophila for chess programmers b) using Capablancas 10x8 Chess board geometry c) using Capablancas piece set (incl. archbishop and chancellor) d) applying aligned Fischer Random Chess rules e) avoiding conflicts to any claimed patents The CRC rules are: a) creating a starting position (one of 24.000): 1) the queen must be placed upon a dark square 2) the bishops have to be placed upon different colored squares, same rule applies to the implicite bishop pieces: queen and archbishop 3) the king always has to be placed somewhere between the rooks b) describing a method of generating starting positions e.g. by using a dice or random number generator: 1) Archbishop combination rule: the archbishop has to be placed upon a bright square (5x) 2) Capablanca tradition rule: the queen has to be place upon a dark square (5x) 3) the first bishop has to be placed upon a free bright square (4x) 4) the second bishop has to be placed upon a free dark square (4x) 5) the chancellor has to be placed upon one of the remaining 6 free squares (6x) 6) the two knights have to be placed randomly upon the remaining 5 free places (10x), to what already a well defined FRC distribution (0 to 9) matrix exists 7) the remainig three free fields are then to be filled with rook, king and rook in that sequence. 8) this establishes White's first row, the Black side has to be built up symmetrically to this 9) ten pawns placed similar to traditional chess in a row finally complete the initial setting as usual. c) nature of (asymetric Fischer-) castlings: 1) castlings are (like in traditional chess) only valid if neither the affected king or rook has been moved, or there would be a need to jump over any third piece, or the king would be in chess somewhere from his starting position to his target field (both included). 2) the alpha-castling (O-O-O): like in FRC the king will be placed at the c-file (two rows distant from the border), the rook at the d-file. 3) the omega-castling (O-O): like in FRC the king will be placed at the i-file (one row distant from the border, the rook at the h-file. d) performing castlings: within a GUI try to move the king upon the related rook or at least two squares into that direction; manually: 1) move the king outside of the board 2) move the rook to its end position (if need to) 3) move the king to his end position e) extended FEN encoding: 1) the extended FRC-FEN could be used as a base 2) 'a'/'A' are used to identify archbishops 3) 'c'/'C' are used to identify chancellors 4) '9' is used to mark nine empty fields 5) '0' is used to mark ten empty fields 6) if a castling enabled rook is not the most outer one at that side, the letter of his file has to be placed immediately following his castling marker symbol, where 'q'/'Q' are used for the alpha-, 'k'/'K' for omega-side.
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