1.e7 b4+ 2.Rb3! [ 2.Rc2? De2+; 2.Rd2? Dxd6+] 2...a4+ [ 2...Dd3+ 3.Ra4] 3.Ra2 b3+ 4.Ra3 Cb5+ [ 4...Dxd6 5.g8=D+ Rxg8 6.e8=D+] 5.Cxb5 Dxb5 6.Cc6! De2 [ 6...Dxc6 7.g8=D+ Rxg8 8.e8=D+ Dxe8] 7.Ce5! Dh5 [ 7...Dxe5 8.g8=D+ Rxg8 9.e8=D+ Dxe8] 8.Cg6! [ 8.Cf7? Dg4! 9.g8=D+ Dxg8 10.Cd6 Db8] 8...De2 [ 8...Dxg6 9.g8=D+ Dxg8 10.e8=D Dg5 11.De4+ Rg7 12.Rxa4] 9.Ce5 Db5 10.Cc6 ½–½