The position must be played positionally. If White conquers e4 without a fight, the g5–pawn will decide the show.<br /><b><br />1.Qb1+ Kc5 </b>[Staying close to pawn-g5.] [1...Ka5 2.Be4 Bxe4 3.Qxe4+– eg 3...Bd8 4.Qf5 Kb6 5.g6 e4 6.Bf2 Bc7+ 7.Kg4 Qb2 8.Kh5 Qh8+ 9.Kg5 Be5 10.Kg4 Qh2 11.Qxe4] <br /><b>2.Be4 </b>[2.Kh2 Bf3] <b>2...Bxe4 3.Qxe4 </b>[Dominance?] <br /><b>3...Qd3! </b>[Not yet!] [3...Bd8 eg 4.Kg4 <i>(4.Qf5) </i>] <br /><b>4.Qf5!! </b>[4.Qxd3? e4+ 5.Qd6+ (this play is known from HHDBVI #14803 by Afek, Van Essen, Wohl and a subsequent study by Afek &amp; Minski #12544) 5...Bxd6+= <i>(5...Kxd6=) </i>] <br /><b>4...Kb4!? </b>[Keeping cool, but now the king is too far from the action.] [4...Qxf5 5.e4+ Qf2+! (doubling of this theme) <i>(5...Kd6 6.exf5+–) </i>6.Bxf2+ Kd6 eg 7.Kg4; 4...Kb6 eg 5.Qxd3 <i>(5.g6) </i>; 4...Qd8 eg 5.g6] <b>5.Qxd3 </b>[Now it works.] [5.Qf7 eg 5...Qd1=] <br /><b>5...e4+ 6.Qd6+ </b>[6.Kg4?? exd3–+] <br /><b>6...Bxd6+ 7.Kg4 </b>[7.Kh4? c5=] <br /><b>7...c5 </b>[7...Kc4 8.g6 Bf8 9.Bh2 Kd5 (9...Kd3 10.Bd6 Bg7 11.Bc5+– <i>(11.Kf4+–) </i>) 10.Kf5 Bg7 eg <i>(10...c5 11.Be5) </i>11.Bc7 c5 12.Bd8] <br /><b>8.g6 </b>[White needs to finish with precision.] [8.Kf5 c4 9.g6 c3=] <br /><b>8...Bf8 </b>[8...Be5 9.Kf5 <i>(9.Bh2) </i>] <br /><b>9.Bh2 </b>[9.Kf5 c4 10.Kxe4 c3=] <br /><b>9...c4 </b>[9...Bg7 10.Bd6+– <i>(10.Kf5) </i>] <br /><b>10.Be5! </b>[10.Bd6+? Bxd6 11.g7 c3 12.g8Q c2 13.Qc8 Bc5= <i>(13...Kb3 14.Qe6+ Kb2 15.Qxd6 c1Q 16.Qb4+ Ka2 17.Qxe4+–) </i>] <br /><b>10...c3 11.g7 Bxg7 12.Bxg7 c2 13.Bb2 Kb3 14.Bc1+– 1–0</b> <p> </p>