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

EGTB: win in 4 half-moves

# move score
1 Kb5 win in 3 half-moves
2 Kb6 win in 3 half-moves
3 Kcd5 win in 3 half-moves
4 Rb4 win in 3 half-moves
5 Kd6 win in 5 half-moves
6 Kb4 win in 7 half-moves
7 Ke4 win in 7 half-moves
8 Kc6 win in 9 half-moves
9 Ra4 draw
10 Kc3 loss in 2 half-moves
11 Kd3 loss in 2 half-moves
12 Kdd5 loss in 2 half-moves
13 Ke3 loss in 2 half-moves
14 Ke5 loss in 2 half-moves
15 Rc1 loss in 2 half-moves
16 Rc2 loss in 2 half-moves
17 Rc3 loss in 2 half-moves