<div><div><b>1.f5 Kg5 2.Kf7! </b>[2.Kg7? Kf4+! 3.Kf6 h5= <i>(3...Rg8=) </i>; 2.Ke7? Rb4! 3.f6+ Kg6=] <b>2...Rb4! </b>[2...Kh6 3.Rb5+-] <b>3.f6+ Kh6 </b>[3...Kg4 4.Kg7 Rxb3 5.Kxh7+-] <b>4.Re6!! </b>Ambush move. Passive pawn sacrifice on b3. [4.Kf8? too early. 4...Kg6! 5.f7 Kf6! 6.Kg8 <i>(6.Re3 Rb8+!=) </i>6...Rg4+!=; 4.Re3? Rb7+ 5.Kf8 Kg6!=; 4.Re8? Rb7+ 5.Kg8 Kg6!=] Variation A: <b>4...Rxb3 </b>[Variation B: 4...Rb8 5.b4! Active pawn sacrifice. 5...Rxb4 6.Kf8! Kg5 7.Kg8! <i>(</i>or <i>7.f7 h5 8.Kg8! </i>moves inversion<i>) </i>7...h5 <i>(7...Rb8+ 8.Kxh7!+-) </i>8.f7 Rf4 9.Re5+!  9...Kg4 <i>(9...Kg6 10.f8Q! Rxf8+ 11.Kxf8+- </i>Well known winning position with wR on 5th rank.<i>) </i>10.Re4!! Pinning again. Chameleon echo.; 4...Rb7+? 5.Kf8! Rb8+ 6.Re8+-] <b>5.Kf8! </b>Now it works. Switchback. <b>5...Kg5! </b>Switchback again<b> </b>[5...Kg6 6.f7+!+-] <b>6.Kg7! </b>[6.f7? h5! 7.Kg8 <i>(7.Kg7 Rb7! 8.Rg6+ Kf4= </i>or 8....Kf5=, but not 8....Kh4? +-<i>) </i>7...Rf3! 8.Re5+ Kg4 9.Re4+ Kg5!=] <b>6...h5 7.Re5+! </b>One more switchback <b>7...Kg4 8.Kg6! h4 </b>[8...Rb6 9.Rg5+!+-] <b>9.Re4+! </b>[9.f7? Rb6+=] <b>9...Kg3 10.f7! </b>only now it works <b>10...Rf3 </b>[10...Rb8 11.Re8! Rb6+ 12.Kf5! Rb5+ 13. Re5! Rb8 14. Re3+! Kg2 15.Re8!+-] <b>11.Re3!!+- </b>Pinning<b> 1–0</b></div><div><b><br /></b></div><div><b> </b></div><br /></div><br />