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 Rg7 win in 1 half-moves
3 Ka5 draw
4 Ka6 draw
5 Ka7 draw
6 Kc6 draw
7 Kc7 draw
8 Ra7 draw
9 Rh7 draw
10 Kb5 loss in 2 half-moves
11 Kc5 loss in 2 half-moves
12 Rc7 loss in 2 half-moves
13 Rd7 loss in 2 half-moves
14 Re7 loss in 2 half-moves
15 Rf7 loss in 2 half-moves