Win
Peter S. Krug & Mario G. García (Austria-Argentina)
1/3 Prize Pat a Mat -2017
wKd2,Qb4,Bc4,Pg6/bKe5,Qf8,Bb1,d8,Pa2,b5,d6,f5,g5
Themes: Domination QB vs Q and study that culminating in mate
1.g7!
Try : 1.Qc3+ Kf4 2.Qe3+ Kg4 3.g7 Ba5+!= (no 3…Qxg7? 4.Be2+ Kh4 5.Qf2++- similar to solution)
1…Qxg7
1…Ba5 2.Qxa5 Qxg7 3.Qc3+ Kf4 4.Qe3+-
1…Qe7 2.g8Q a1Q 3.Qh8+ Qg7 4.Qxg7+ Bf6 5.Qf7 Qd4+ 6.Kc1 bxc4 7.Kxb1+-
2.Qc3+ Kf4
2…Ke4 3.Qe3# mate
3.Qe3+ Kg4 4.Be2+ Kh4 5.Qf2+ Kh3 6.Bf1+ Kg4 7.Qe2+ Kf4 8.Qh2+ Ke4
8…Kg4 9.Be2# mate
8…Kf3 9.Bg2+ Kg4 (9…Kf2 10.Bd5+ Kf1 11.Qg2# mate) 10.Qh3+ Kf4 11.Qe3+ Kg4 12.Qf3+ Kh4 13.Qh3# mate
9.Bg2+ Kd4 10.Qxd6+ Kc4 11.Bd5+ Kd4 12.Bxa2+ Ke4 13.Bd5+
13.Bxb1+? Kf3=
13…Kd4 14.Bc6+
14.Bb7+? Kc4 15.Bd5+ Kd4 16.Bc6+ is loss time
14…Kc4 15.Qd5+ Kb4 16.Qxb5+ Ka3 17.Qa4+
17.Qc5+ Kb3 18.Qb5+ is loss time
17…Kb2 18.Qb4+ Ka1 19.Qa3+ Ba2 20.Kc2! Qe5 21.Qc1+ Bb1+ 22.Qxb1# mate