Solución Estudio de Zakharov

1.Rf2! [ 1.e6? Rd8 2.e4 ( 2.Rf2 Rc7 3.Rf3 ( 3.Re2 Rd6 4.Rd3 Rxe6 5.Re4 ( 5.Rc3 Re5–+) 5...Rf6 6.Rf3 Re5–+) 3...Rd6 4.e4 Rxe6 5.Re3 Re5–+) 2...Rc7 3.e5 Rb6 4.Rf2 Ra5 5.Re3 Rb4 ganando.] 1...Rd7 [ 1...Rd8 2.Re2 ( 2.Rf3? Rd7!–+) 2...Rc7 3.Rd2=] 2.Rf3 Única, si no se pierde el peón de e5. [ 2.Re2?] 2...Rc7 [ 2...Re6 3.Re4 Rf7 ( 3...Rd7 seria lo mismo.) 4.Rd3 e6 5.Rc3 Re7 6.Rb3 Rd7 7.Ra4 Rc7 8.Ra5 Rb7 9.Ra4 Ra6 10.Ra3 Ra5 11.Rb3=] 3.Re4!! [ 3.Re2? Rb6 4.Rd3 Ra5 5.Rc3 ( 5.e6 Rb4 6.Re4 Rxc4 7.Re5 Rb3! 8.e4 c4–+) 5...Ra4–+ etc.] 3...Rb6! [ 3...e6? 4.Rd3] 4.e6!! [ 4.Rd3? Ra5 5.Rc3 Ra4–+] 4...Ra5 [ 4...Rb7 5.Re5 Rc7 6.e4!] 5.Re5 Rb4 6.e4!= y el rey se ha encerrado en la jaula voluntariamente y el ahogado es inevitable. ½–½

 

1.Te5+ [ 1.Ag6? Ce3 2.Cxe3 Df2+ 3.Rg4 Dxe3–+] 1...Rd2 2.Td5+ [ 2.Cf2? Cxf2 3.Te2+ Rc1 4.Te1+ Cd1 5.Txd1+ Rc2–+] 2...Rc1! 3.Txd1+ Rxd1 4.Ce5+! Rc2 5.Ag6+ Rb3 6.Af7+ Ra4 7.Ae8+ c6 [ 7...Rxa5 8.Cc4+ Rb4 9.Cxb2 cxb2 10.Ag6 Rc3 11.Rf4 (Reti) 11...c5 ( 11...Rd2 12.Re5=) 12.Re3=] 8.Axc6+ Rb3 9.Ad5+ Rc2 10.Ae4+ Rd1 11.Af3+ Re1 12.Cd3+ Rd2 13.Cxb2 c2! 14.Cc4+ Rc3 [ 14...Rd3 15.Ae4+ Rxe4 16.Cd2+=] 15.Cd6! c1=D 16.Ce4+ Rb4 17.Ag2 Dc7+ 18.Rf2 Da7+ 19.Rg3 Dg1 20.a6 Rb5 21.a7 Dxa7 22.Rh2 la clásica fortaleza ½–½