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