<p><strong><font size="2"><font color="#0000ff">1</font><font color="#008000" face="Verdana"><font color="#ff0000"><font color="#0000ff">.Kc6!</font> <br /> </font>1…Kd4 2.Ra2 Nb6 3.Kxb6 Ke5 4.Kc5 Ke4 5.Ra4+ Kf3,Kd3  6.Rd4(+) Ke3 7.Kc4 Ke2 8.Rd3 Kf2 <br /> 9.Kc3 Ke2 10.Kc2 Kf1 11.Rd2 Ke1,Kg1 12.Kd3 Kf1 13.Ke3 Kg1 14.Kf3 Kh1 15.Kg3 Kg1 16.Rd1‡ <br /> 10…Ke1 11.Rd2 Kf1 12.Kd1 Kg1 13.Ke1 Kh1 14.Kf2 Kh2 15.Rd3 Kh1 16.Rh3‡ <br /> 1…Kd3 2.Rf8 Nc7 3.Kxc7 Ke4 4.Kd6 Kd4 5.Re8 Kc4 6.Re4+ Kd3 7.Kd5 Kc3 8.Rd4 Kb3 9.Rc4 <br /> Ka3 10.Kc5 Kb3 11.Kb5 Ka3 12.Rb4 Ka2 13.Ka4 Ka1 14. Kb3 Kb1 15.Rc4 Ka1 16.Rc1‡ <br /> 3…Kd4 4.Kd6 Ke4 5.Re8+ Kf3,Kf5 6.Re5 (+) Kf4 7.Ke6 Kg4 8.Rf5 Kg3 9.Kf6 Kg4 <br /> 10.Kg6 Kh3 11.Rg5 Kh2,Kh4 12.Kf5 Kh3 13.Kf4 Kh2 14.Kf3 Kh1 15.Kf2 Kh2 16.Rh5‡ <br /> 10…Kh4 11.Rg5 Kh3 12.Kh5  Kh2 13.Kh4 Kh1 14.Kg3 Kg1 15.Rf5 Kh1 16.Rf1‡</font></font></strong></p> <p><strong><font color="#0000ff" face="Verdana" size="2">The key gives 2 flights, 5 ideal mates (3+2 echoed)</font></strong></p>