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

EGTB: win in 4 half-moves

# move score
1 Ka7 win in 3 half-moves
2 Kab5 win in 3 half-moves
3 Kb7 win in 3 half-moves
4 Kb6 win in 5 half-moves
5 Kc4 win in 5 half-moves
6 Kaa5 draw
7 Ra1 draw
8 Ra5 draw
9 Ka3 loss in 2 half-moves
10 Kb3 loss in 2 half-moves
11 Kba5 loss in 2 half-moves
12 Kbb5 loss in 2 half-moves
13 Kc3 loss in 2 half-moves
14 Kc5 loss in 2 half-moves
15 Ra2 loss in 2 half-moves
16 Ra3 loss in 2 half-moves