Tsumeshogi Challenge

Solution to Problem 58

Solution: 1. N*1e Px1e 2. R-1b+ Kx1b 3. L*1d N*1c 4. Lx1c+ K-1a 5. N*2c +Rx2c 6. P*1b +Rx1b 7. +Lx1b Kx1b 8. R*1c mate (15 moves) Variations: 3... L*1c 4. Lx1c+ K-1a 5. L*1b mate (9 moves, koma-amari) 3... B*1c 4. Lx1c+ K-1a 5. B*2b Sx2b 6. +B-2b mate (11 moves, koma-amari) A nice illustration of how to avoid uchifuzume - EC Nice with a solution that branches depending on what piece is dropped! - RL Wonderful! Great mix of shogi rules. - AVH

Correct Solvers Ralf Lundberg Sweden Mike Facer USA Reijer Grimbergen Japan Matt Casters Belgium Hans Geuns Netherlands Eric Cheymol France Philippe Tran France Tan Teng Chuan Singapore Kai Wan Leung Hong Kong Lawrence Chai Singapore Tony Salvaggione USA Jochum Drechsler Germany David Rockwell USA Victor Contoski USA Kristiaan Van de Velde Belgium Frederic Pottier France Yoshiki Hayashi Japan Alain Van hentenryck Belgium