1...d6 [1...d5 2.f4! Rh6 3.f5 Rxh7 4.Ke8 Rh8+ 5.Ke7= ] 2.f4 [2.Ke7!? dxe5 3.d5 Rg2! (3...Kxh7? 4.d6 Rg7+ 5.Ke6= ) 4.f3 (4.d6 Rxf2-+ ) 4...Rf2 5.d6 Rxf3 6.h8Q+ Kxh8 7.d7 Rd3-+ ; 2.Kd7!? dxe5 3.dxe5 Rh6! (3...Kxh7? 4.e6= ) 4.h8Q+ Rxh8 5.e6 Kf6-+ ] 2...Rh6 [2...dxe5 3.fxe5 Rh6 4.d5 Rxh7 5.d6 Kf7 main line; 2...Kxh7 3.d5 dxe5 4.fxe5 Rg8+ 5.Kc7= ] 3.d5 [3.f5? dxe5 4.dxe5 Rxh7 5.Ke7 (5.f6+ Kg6-+ ) 5...Kg8+ 6.Kf6 Kf8-+ ] 3...dxe5 4.fxe5 Rxh7 5.d6 Kf7! 6.Kd7 Rh6 7.h3! zz [Thematic try 7.h4!? Rg6! zz (7...Re6? 8.Kc7 Rxe5 9.d7= ) 8.h5 Rh6! zz 9.Kc8 Rh8+ 10.Kd7 Re8 11.h6 Rxe5 12.h7 Re8-+ ] 7...Rg6 8.h4 zz 8...Rh6 9.h5 zz 9...Re6 10.Kc7 Rxe5 11.d7=.
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