<p><span lang="EN-US">1.f3!! </span></p> <p><span lang="EN-US"></span><span lang="EN-US">Thematic try 1.f4!? c3 2.Bxc5 c2 3.Ba3 Ne3! zz <span>(3...Nd2? 4.f5=) </span>4.Kg6 (4.Kh7 Ke2! <span>(</span>main line after: <span>4...Nc4? 5.f5 Nxa3 6.f6 c1Q 7.f7=) </span>5.Bc1 Kf3!–+) 4...Nc4 5.f5 Nxa3 6.f6 Nc4! <span>(6...c1Q? 7.f7=) </span>7.f7 Ne5+–+</span></p> <p><span lang="EN-US"><font face="Times New Roman"><span style="font-size: 12pt;">1...c3 2.Bxc5 c2 3.Ba3 zz Ne3 4.f4 zz Nc4 5.f5 Nxa3 6.f6 c1Q 7.f7 draws.</span></font></span></p>