00000nam a2200000 a 4500 20251203112241.0 9788173715419 793.74 WAT Watkins, John J Across the board the mathematics of chessboard problems Chennai Universities Press 2005 xii,257p. 20cm. PB includes references and index Mathematical recreations Chess. _ 188680 LIBSS C 152780 152780 0 0 0 0 PU PU 2011-12-28 280.00 0 793.74 WAT 188680 BK