Nº3 Pavel Arestov (Rusia)

Draw
Nº3 Pavel Arestov ( Rusia)
Section A
wKh2,Re8,g6,Pe5,f3/bKe2,Rf1,Pd7,f2

1.e6!
Try:1.Rg2? pin 1…Ke3! unpin 2.e6 d5 3.e7 Rh1+! 4.Kxh1 f1Q+ 5.Kh2 Qa1 6.Rd8 Qd5+ =.
1…Rh1+!
1…d5 2.Rh8 +-.
2.Kxh1 f1Q+ 3.Kh2
3.Rg1?? selfpin Qh3#.
3…Qxf3
3…d5 4.Rf8 +-; 3…Qf2+ 4.Rg2 pin, +-;
3…de 4.Rgxe6+! Kd3 (3…Kf2 4.Re2+! Qxe2+ 5.Rxe2+ +-) 5.Rd8+ Kc4 6.Rc6+ Kb5
7.Rc2! Qxf3 8.Rb8+ Ka6 9.Ra8+ +-.
4.ed+ Kf1!
4…Kf2 5.Rg4! – main line.
5.Rg1+!
Try: 5.Rf6? pin 5…Qxf6 unpin 6.d8Q Qh4+!! 7.Qxh4 – stalemate.
5.d8Q? Qg2+! 6.Rxg2 – stalemate.
5…Kf2 6.Rg4!!
6.Re2+? Kxe2 7.d8Q Qh5+ 8.Kg3 Qg6+ 9.Kf4 Qxg1 =; 6.d8Q?? Qh5+ -+.
6…Kf1!
6…Qxg4 7.Rf8+ Ke2 8.d8Q +-.
7.Rdg8!
7.Rg1+? Kf2 8.Rg4 Kf1 – loss of time.
7…Qe2 (Qf2)+ 8.Kh1!
8.Rg2? selfpin 8…Qh5+ 9.Kg3 Qe5+ 10.Kh4 Qd4+ =;
8.Kh3? Qe3(Qd3) =.
8…Qf3+ 9.Rg2! selfpin with:

A) 9…Qh3+ unpin 10.Rh2 selfpin 10…Qf3+ unpin
11.Rgg2! selfpin 11…Ke1!
11…Qd5 12.d8Q Qxd8 13.Rg1#
12.d8N!! win.
Try: 12.d8Q(d8R)? Qf1+ unpin 13.Rg1 selfpin 13…Qxg1+! 14.Kxg1 – stalemate;
12.d8B? Kf1 13.Bg5 Qd5(Qc6) 14.Bh6 Qa8(Qb7,Qc6) =.
12…Kf1 13.Nf7(Ne6)! Qxf7 14.Rg1#.

B) 9…Qh5+ unpin 10.Rh2 selfpin 10…Qd5+ unpin
11.Rgg2! selfpin 11…Qxd7 unpin 12.Rg1#.