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