Estudio de Alexander Kazantsev (1953). Blancas juegan y ganan.

- 1er premio Shakhmaty v SSSR -

1.Tb7! De5 [1...Ra5 2.Ad1 De5 3.b4+ Ra6 4.Ae2+ Dxe2 5.Rb8 De8+ 6.Rc7 Axd5 7.a8=D+ Dxa8 8.Tb6+ Ra7 9.b5+-; 1...De1 2.Rb8 Dg3+ 3.Rc8+-; 1...Axd5 2.Ad1+ Ab3 3.Axb3+ Ra5 4.h7 Dg7 5.Ad1+-] 2.Ad1+! [2.h7 Axd5 3.Ad1+ Ra5 4.b4+ Ra6 5.Ae2+ Dxe2 6.h8=D Axb7+ 7.Rb8 Db5 8.Da1+ Rb6=; 2.Ag6 Ra5! 3.b4+ Ra4 4.Txd7 Axd5+ 5.Txd5 Dxd5+ 6.Rb8 Db5+ 7.Rc7 Da6 8.h7 Dxa7+–+; 2.Af3 Axd5 3.Axd5 Dxd5 4.h7 De5=] 2...Ra5 3.b4+ Ra6 4.Ae2+! Dxe2 5.Rb8 De5+ [5...De8+ 6.Rc7+-] 6.Rc8! [6.Tc7 Axd5–+] 6...De8+ 7.Rc7 Axd5 [7...De5+ 8.d6 Dxd6+ (8...Dc3+ 9.Rb8+-) 9.Rxd6 Rxb7 10.a8=D+ Rxa8 11.Rc7+-; 7...d6 8.a8=D+ Dxa8 9.Tb6+ Ra7 10.b5 Dd8+ 11.Rxd8 Rxb6 12.Rd7 Rxb5 13.Rxd6+-] 8.a8=D+! Dxa8 9.Tb6+ Ra7 10.b5! [10.Tb5 Dc6+–+] 10...Ab7 [ 10...Dd8+ 11.Rxd8 Rxb6 12.h7+-; 10...Db7+ 11.Txb7+ Axb7 12.h7+-] 11.Ta6+! Axa6 12.b6++ 1–0