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

EGTB: win in 6 half-moves

# move score
1 Kb7 win in 5 half-moves
2 Ka5 draw
3 Kc7 draw
4 Kc8 draw
5 Kd8 draw
6 Ke8 draw
7 Ra8 draw
8 Rb7 draw
9 Kb5 loss in 2 half-moves
10 Kb6 loss in 2 half-moves
11 Kc6 loss in 2 half-moves
12 Kd6 loss in 2 half-moves
13 Ke6 loss in 2 half-moves
14 Ke7 loss in 2 half-moves
15 Rc7 loss in 2 half-moves