1. Nd4! 1. Nc3? f2 2. Rb1 Ne1 3. Rb4+ Kh3 1. Ng1? Nf2+ 2. Kh2 Ng4+ 3. Kh1 f2 4. Nf3+ Kg3 1... f2 1... Bxb5 2. Nxb5 Kg3 3. Kg1 Nf4 4. Nd6 2. Rb1 2. Rf5? Bxf5 3. Nxf5+ Kh3 4. Ng3 Nf4 5. Nf1 Nh5 2. Nf3+? Kg3 2... Ne1 2... Bc6+ 3. Kh2 Ne1 4. Nf5+ 3. Nf3+ Kh3 3... Kg3 4. Rxe1 Bc6 5. Rg1+ Kh3 (5... Kxf3 6. Kh2) 6. Rg3+ Kxg3 4. Rxe1! Bc6 5. Re4! f1=Q+ 5... Bxe4 stalemate 5... Kg3 6. Rg4+ Kxf3 7. Rg1 6. Ng1+ Kg3 1/2-1/2