Section A1 – Win
1…Rc2 2.dxc7
( White can take the knight, but this doesn’t win. 2.Rg4+? Kb5! 3.Rxh4 cxd6 4.Kg1 Kc6 5.Kf1 Rxa2 6.Nc3 Ra3 7.Ne2 a4 8.Rxh7 d5 =, quiet )
2…Kb5!
The best defense!
( 2…Kd3 3.Rg3+ Kd4
( 3…Kd2 )
4.Rc3 +- )
( 2…Kd5 3.Nb6+ )
( 2…Kd4 3.Rg4+ Ke5 4.Rxh4 +- )
3.Nc5!
Knight sacrifice
( 3.Nb2? Nf3! -+ )
3…Nf3!
Black creates a checkmate threat
( 3…Rxc5? 4.Rg5 +- )
4.Rb1+!
( 4.a4+? Kb6 5.Rb1+ Kxc7 6.Rb7+ Kc6 7.Rxh7 Rxc5 -+ )
4…Kc4 5.Rc1!
Rook sacrifice
5…Rxc1+ 6.Kg2 Ne1+
( 6…Rg1+ 7.Kxf3 Rg8 8.Nb7 Ra8 9.c8=Q+ Rxc8 10.Nd6+ +- )
7.Kg3!
The rest is a waste of time:
( 7.Kf2 Nd3+ 8.Kg2 Ne1+ 9.Kg3 )
( 7.Kg1 Nd3+ 8.Kg2 Ne1+ 9.Kg3 )
( 7.Kf1 Nd3+ 8.Kg2
( 8.Ke2 Re1+ 9.Kd2 Re8 10.Nb7 Ra8! 11.c8=Q+ Rxc8 12.Nd6+ Kc5 =, quiet )
8…Ne1+ 9.Kg3 )
7…Rc3+ 8.Kf2!
( 8.Kg4? Kd4
( 8…h5+ 9.Kxh5 Rh3+ =, quiet )
9.c8=Q h5+ 10.Kxh5 Rxc5+ 11.Qxc5+ Kxc5 =, quiet )
8…Rf3+
( 8…Nd3+ 9.Ke2 Nxc5 10.c8=Q h5 11.Qf5 Ra3 12.Qf7+!
( 12.Qxh5? Rxa2+ =, quiet )
12…Kd4 13.Qxh5 Rxa2+ 14.Kf3 +- )
9.Kxe1 Rf8
Black finally stops the pawn, but loses the rook in the process, after which White wins easily.
10.Nb7!
(Threat 1…Nd8.)
10…Rc8 11.Nd6+ Kc5 12.Nxc8 +- 1-0