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 Ka4 draw
3 Ka5 draw
4 Ka6 draw
5 Kb6 draw
6 Kc5 draw
7 Kc6 draw
8 Ra7 draw
9 Rb6 draw
10 Rh7 loss in 4 half-moves
11 Kb4 loss in 2 half-moves
12 Kc4 loss in 2 half-moves
13 Rc7 loss in 2 half-moves
14 Rd7 loss in 2 half-moves
15 Re7 loss in 2 half-moves
16 Rf7 loss in 2 half-moves
17 Rg7 loss in 1 half-moves