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

EGTB: win in 2 half-moves

# move score
1 Rb3 win in 1 half-moves
2 Ka4 win in 7 half-moves
3 Ka5 win in 7 half-moves
4 Kc4 win in 7 half-moves
5 Kc5 win in 7 half-moves
6 Kb4 win in 15 half-moves
7 Kd1 win in 15 half-moves
8 Ra1 win in 19 half-moves
9 Ka6 draw
10 Kb6 draw
11 Kc6 draw
12 Kb2 loss in 2 half-moves
13 Kc2 loss in 2 half-moves
14 Kd2 loss in 2 half-moves
15 Rb2 loss in 2 half-moves
16 Rb4 loss in 2 half-moves