Winners Special challenge

Tata Steel Special Challenge
Composed by Yochanan Afek
Especially for Tata Steel tournament 2012
Dedicated to all participants

White to play and win

Solution: 1.a7 Rh4+ 2.Bg4!! Rxg4+ 3.Kf5! [3.Kf3? Rc4!! 4.a8Q+ Kf7 5.Qb7+ Kf6! 6.Qb5 Nc6! 7.Ke3 Ne5=] 3...Rf4+! 4.Kxf4 Nd5+ 5.Ke5 Nb6! [5...Nc7 6.c4! Kf7 7.Kd6 Na8 8.Kd7! Kf6 9.c5+-] 6.Kd6!! [6.c4? Kf7 7.Kd6 Ke8 8.Kc7 Na8+ 9.Kc8 Ke7=] 6...Nc8+ 7.Kc7 Nxa7 8.c4! Kf7 9.Kb7 Ke6 10.Kxa7 Kd6 11.Kb6 1–0

Tata Steel thanks to all those who gave it a try solving the special challenger, sent in their instructive solutions and kind comments. Among those who provided a full and correct solution, the following solvers won a book-prize that will be sent to their postal address: Horvat Saša (Croatia); Evert van Heel (Utrecht); Ramon Pontes (Brazil); Arjo Schreuders (Giessen); Stanislav Kanev (USA); Frits Fritstchy (Leiden); Matthew Turner and his students (England); Martien Boerefijn (Bannik).