A Deep Improver of Two-move Chess Mate Problems. - Yaakov HaCohen-Kerner; Fridel Fainshtein (Cybern. Syst., 2006)

A Chess Composer of Two-Move Mate Problems. - Fridel Fainshtein; Yaakov HaCohen-Kerner (J. Int. Comput. Games Assoc., 2006)