Click on the third or sixth rank to set the en passant target square.

EGTB: win in 2 half-moves

# move score
1 Rb8 win in 1 half-moves
2 Khh7 draw
3 Ra8 draw
4 Rc2 draw
5 Rc3 draw
6 Rc4 draw
7 Rd8 draw
8 Re8 draw
9 Rf8 draw
10 Kf7 loss in 2 half-moves
11 Kf8 loss in 2 half-moves
12 Kgh7 loss in 2 half-moves
13 Kgg7 loss in 1 half-moves
14 Khg7 loss in 1 half-moves
15 Rc1 loss in 1 half-moves
16 Rc5 loss in 1 half-moves
17 Rc6 loss in 1 half-moves
18 Rc7 loss in 1 half-moves