Win (4 + 3)     black to move

Marcin Banaszek,    2. Prize was canceled Szachy 1985    1...Rb7! A surprising sacrifice! 2.Bb5+! A white counter sacrifice. (2.Rxb7? 0-0-0+ 3.Kg7 Kxb7=) 2...Rxb5 3.Re7+! (3.Rh8!? 0-0-0+!) 3...Kd8 4.Kf7 Rf5+ 5.Ke6 Rf8 6.Rd7+ Kc8 7.Rc7+ Kb8 8.Rb7+ Kc8 9.Rhc7+ Kd8 10.Rd7+ Ke8 (10...Kc8 11.Ke7 Rh8 12.Rdc7#) 11.Ra7! Rb8 12.Rdb7! Rc8 (12...Rxb7 13.Ra8+ Rb8 14.Rxb8#) 13.Re7+ Kd8 14.Rad7# White domination on the 7th line with the same material and mate in the end. Anticipated: S. Wójcik, Szachy 1965 + Solution.