1.Kf4! [1.Rb8+? Kf7 2.Rb7+ Kf6 (Also 2...Ke8 3.Kf4 Bc2 -+) 3.Rb6+ Kg5 4.Rxh6 Kxh6 5.Kf4 Bc2 -+; 1.e4? Bc6-+ ] 1...Bd7 2.Rb7! [2.Rd2? Rh4+ 3.Kg5 (3.Ke5 Rh7 (Re4+) -+) 3...Rh7 (Rg4+) -+] 2...Rh4+ [2...Rd6 3.Rb4 Rd1 (3...Rg6 4.e4 Rg4+ 5.Ke5 =) 4.e4 Rf1+ 5.Kg3 =] 3.Ke5 Re4+ [3...Rh7 4.Rb8+ Kf7 5.e4 (Rb4) =] 4.Kf6 Bc8 5.Rc7! [5.Rg7+!? Kh8 6.Rc7 Be6 7.Rc1 Kg8 8.Rb1 Bc8 9.Rc1 Re6+ 10.Kg5 Bd7 11.Rd1 Re7 12.Rd4 Rg7+ 13.Kf6 Rf7+ (Kf8) -+] 5...Be6 6.Rg7+ Kh8 7.Rg1! [7.Rg2? Bd7 8.Kf7 Rh4 -+; 7.Rg3!? Rxe2 8.Rd3 Kh7 9.Rh3+ Kg8 10.Rd3 Re4 zz 11.Rd2 f4 12.Kg5 f3 -+] 7...Rxe2 8.Rh1+ Kg8 9.Rd1! Z 9...Kh7 [9...f4 10.Rf1 Re4 11.Kg5 =] 10.Rh1+ Kg8 11.Rd1 Re4 12.Rd3! zz [12.Rd2? f4 13.Kg5 f3 -+] 12...Kh7 [12...f4 13.Kg5 Re3 14.Rd8+ =] 13.Rh3+ Kg8 14.Rd3 Re1 15.Rd2! zz [15.Rd4!? Re3 zz 16.Ra4 Bc8 -+] 15...Kh7 16.Rh2+ Kg8 17.Rd2 Re3 18.Rd4! zz 18...Kh7 19.Rh4+ Kg8 20.Rd4 Re2 21.Rd1 positional draw .