<span lang="DE">1.Nc6! <br /> </span><br /> <br /> <span lang="EN-US">1.Nb5? g5 2.Kh7 Bf8–+; 1.Kh7? Be3 2.Nc6 g5–+ <br /> </span><br /> <br /> <span lang="EN-US">1...Nc5 2.Kh7! <br /> </span><br /> <br /> <span lang="EN-US">Thematic try 2.Kg8!? Kb1!! <span>(</span>not <span>2...Kb2? 3.Ne5! Kc3 4.Ng4 Nd7 5.Kf7!=) </span>3.Kf7 <span>(3.Kh7 Ne6! 4.Ne7 Nf8+ 5.Kg8 g5–+) </span>3...Nd3! 4.Kg6 Nf4+ 5.Kh7 circuit of bS (d3-f4-e6) 5...Ne6–+ <br /> </span><br /> <br /> <span lang="EN-US">2...Ne6 3.Kg6 <br /> </span><br /> <br /> <span lang="EN-US">Try 3.Ne7!? Nf8+ 4.Kg8 g5 5.Nf5 g4–+ <br /> </span><br /> <br /> <span lang="EN-US">3...Kb1 <br /> </span><br /> <br /> <span lang="EN-US">3...Kb2 4.Ne5 Kc3 5.Ng4 Bc1 6.Kf7=; 3...Ka2 4.Kf7 Nf4 5.Ne5 Kb3 6.Ng4= <br /> </span><br /> <br /> <span lang="DE">4.Kf7! Nf4 <br /> </span><br /> <br /> <span lang="DE">4...Ng5+ 5.Kg6 Nf3 6.Nd8!! </span><span lang="EN-US">Bg5 7.Ne6!= <span>(7.Nf7? </span></span><span lang="DE">Bf6–+) <br /> </span><br /> <br /> <span lang="DE">5.Ne5 Kc2 6.Ng4 <br /> </span><br /> <br /> <span lang="DE">6.Kg8? Nh5–+ <br /> </span><br /> <br /> <span lang="DE">6...Kd3 7.Kg8 Ng6 <br /> </span><br /> <br /> <span lang="EN-US">7...Ke4 8.Kh7= <br /> </span><br /> <br /> <span lang="EN-US">8.Kh7 </span><span lang="EN-US">Switchback: the wK walks around the bP. <br /> </span><br /> <br /> <span lang="EN-US">8.Kf7? Nh4–+ <br /> </span><br /> <br /> <span lang="EN-US">8...Nf8+ 9.Kg8 Ng6 10.Kh7 Nf8+ 11.Kg8 </span><span lang="EN-US">positional draw, or <span>11...Ne6</span></span><span lang="EN-US"> 12.Kf7 Nd8+ 13.Kg6 draw.  Authors</span><br />