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

EGTB: win in 4 half-moves

# move score
1 Ka5 win in 3 half-moves
2 Ka6 win in 3 half-moves
3 Kbc5 win in 3 half-moves
4 Kc6 win in 3 half-moves
5 Ra4 win in 3 half-moves
6 Kb6 win in 5 half-moves
7 Kd4 win in 7 half-moves
8 Rb3 win in 9 half-moves
9 Ka4 draw
10 Rb1 draw
11 Rb2 draw
12 Kb3 loss in 2 half-moves
13 Kc3 loss in 2 half-moves
14 Kcc5 loss in 2 half-moves
15 Kd3 loss in 2 half-moves
16 Kd5 loss in 2 half-moves