Win (4 + 7)

Marcin Banaszek,    2° Prize Problemista 1967    1.Qh1+ Kg7 (1...Qh4 2.Ng4+ Kg7 3.Qb7+ Kf8 4.Qc8+ Be8 5.Nf6 Kf7 (5...Ke7 6.Qxe8+ Kd6 7.Qd7#) 6.Qxe8+ Kf6 7.Qf8# model mate) 2.Qb7+ Kh6 (2...Bd7 3.Qxd7+ Kh6 4.Qxe6 Kh5 5.Qxg6+ Kh4 6.Qh7# model mate) 3.Qf7 Be8! F.Bondarenko comments in his book "Sovremenny shakhmatny etyud" 1987: "Expressive defence against mate with hope for the black queen to be freed in order to give perpetual check, but..." 4.Ng4+! Qxg4 (4...Kh5 5.Nf6+ Kh4 6.Qh7#) 5.Qg8! Bf7 6.Qh8# model mate. "The solution is not spectacular, but the number of mates is admirable." Judge: A.J. Roycroft, England