1.Ba2! opening of 8th rank [try 1.Rb8? Qa7 2.Rc8 Qa6+ 3.Be6+ Qxc8 4.Bxc8 Rfxf3 5.h7 Re7 6.Nh5 Rxh7 7.g4 Ra3 8.Bf5 Rb7–+; 1.Bc4? Qa8! 2.Ng5 Qc6+ 3.Kh5 Rh1+ 4.Kg4 Qd7+ 5.Nfe6 Rxe6 6.Nxe6 Qd1+ 7.Kg5 Rh5+ 8.Kf6 Rxh6+–+; 1.Bd5? Rb1 2.Rc5 Rb6+ 3.Kh5 Qa6 4.Ng5 Rxh6+ 5.Kg4 Rxg3+! 6.Kxg3 Qa3+ 7.Kg4 Qxc5 8.Nf7+ Kg7 9.Nxh6 Kxh6–+] 1...Qxa2 [1...Re8 2.Ng5 Qxa2 3.Nf7+ Qxf7+ 4.Kxf7=] 2.Rb8+ Qg8+ 3.Rxg8+ Kxg8 4.h7+ [4.Ng5? Rxg3 5.Nfe6 Rg2 6.Nd8 Rf8 7.Nde6 Rb8 8.Kf6 Rb6–+] 4...Kh8 5.Kh6 with mate threat [5.Ng5? Rxg3–+] 5...Rh1+ 6.Nh4 Rxg3 7.Nh5 Rxh4 pin stalemate.

Meredith. Key sacrifice. Final position was created completely in play.