George Duke wrote on Thu, Jul 5, 2007 11:51 AM EDT:
ProblemThemeTwo here is reserved for the more extreme subset where neither
White nor Black can move. In Dave's Silly Chess Game(2x2) we pose difficult Puzzle Two whether an initial position exists where there is no legal move for either side on 8x8(or 8x10 okay). Required are 50% piece density all on own board-half, half being Pawns, Kings positioned in back-rank, and use of CVPage-indexed pieces. Of course it must be 'legal' position where Kings are not initially checked(unlike David Howe's spoof). One solution 8x10 will be posted later today.