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

EGTB: win in 6 half-moves

# move score
1 Ka7 win in 5 half-moves
2 Kd7 draw
3 Kd8 draw
4 Rd8 draw
5 Kb6 loss in 2 half-moves
6 Kb7 loss in 2 half-moves
7 Ke7 loss in 2 half-moves
8 Kf7 loss in 2 half-moves
9 Kf8 loss in 2 half-moves
10 Ra7 loss in 2 half-moves
11 Rb8 loss in 2 half-moves
12 Rc8 loss in 2 half-moves
13 Ka5 loss in 1 half-moves
14 Kb5 loss in 1 half-moves