Section A2 – Draw
1.g6! fxg6 2.Re7+ Kb8 3.Rh7 g3
[#]
4.Kc6!!
It forces Black to weaken his position
( 4.Kxb6? Kc8 5.Kc6 Kd8 6.Kd6 Ke8 7.Ke6 Kf8 8.Kf6 Kg8 -+ )
4…g5
( 4…g2 5.Rh8+ Ka7 6.Rh7+ Ka6?? 7.Rxh2 g1=Q 8.Ra2# )
( 4…b5 The b5-pawn blocks Black’s king from escaping; a few more defensive moves by the rooks are enough to secure a draw, but the principle of the draw—involving the move Rc7 and exploiting the blocked b5-square, which prevents Black’s king from escaping—is the only one. 5.Rh8+
( or 5.Rh6 /h4/h3 5…Ka7
( after 5…g5 White can wait: 6.Rh7
( 6.Rh5 )
( 6.Rh3 )
( 6.Rh8+ )
)
6.Rh8! g5 7.Kc7! A key position for the defense, utilizing the b5-pawn, which blocks the Black king’s escape 7…b4
( 7…Ka6? 8.Ra8# )
8.Kc6
( nebo 8.Rh7 se stejnými motivy )
8…b3 9.Rh7+ Ka6 10.Rh8 Ka5 11.Kc5 =, quiet Ka4?? 12.Ra8# )
5…Ka7 [#] 6.Kc7! The key position 6…b4
( After 6…g5 White waits until Black runs out of moves, e.g. 7.Kc6 g4 8.Kc7! b4
( 8…g2?? 9.Rxh2 g1=Q 10.Ra2# )
9.Kc6 =, quiet )
( 6…Ka6?? 7.Ra8# )
7.Kc6
( or 7.Rh7 Ka6 8.Kc6 b3 9.Rh8! with change order of moves )
7…b3 8.Rh7+ Ka6 9.Rh8 Ka5 10.Kc5 Ka6
( 10…Ka4?? 11.Ra8# )
11.Kc6 =, quiet )
5.Kxb6 Kc8 6.Kc6 Kd8 7.Kd6 Ke8 8.Ke6 Kf8 9.Kf6 Kg8
Compare this position with the try 4.Kxb6, where Black’s pawn is on g6
10.Rh5! g2 11.Rxg5+ Kf8 12.Ra5! Ke8 13.Ke6 Kd8 14.Kd6 Kc8 15.Kc6 Kb8 16.Rb5+ Kc8 17.Ra5 Kd8 18.Kd6 Ke8 19.Ke6 Kf8 20.Kf6 1/2-1/2