1.Ab2! [1.Rxd6 a1=D 2.Ad5+ Rb8 3.Af4 Txb4 4.Tf7 Txf4 5.Txf4 a5 6.Tf8+ Ra7 7.Ta8+ Rb6=] 1...axb2 2.Rxd6 [ ‹2.Rc6 Txb4 3.Ad5 a5 4.Axa2 Tb8 5.Rxd6=] 2...Ta6+ 3.Rc7 Tc6+! 4.Rxc6 b1=D! [4...a1=D 5.Ad5 Dc1+ 6.Rd7+ Rb8 7.Th8+ Dc8+ 8.Txc8#] 5.Th8! [5.Ad5 Dxh7–+] 5...a1=D 6.Ad5+ Dxh8 7.Rc7++ 1–0