Problem 557529: Hitam jalan Bertahan dan Menang
George Edward Sr Wainwright - Frederick Dewhurst Yates
British CF-14 Championship Malvern College/ Worcestershi (1), 1921.08.08
British CF-14 Championship Malvern College/ Worcestershi (1), 1921.08.08
Gerakkan buah untuk memecahkan problem.