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

EGTB: win in 4 half-moves

# move score
1 Kb4 win in 3 half-moves
2 Kcd4 win in 3 half-moves
3 Kd2 win in 3 half-moves
4 Kdd4 win in 3 half-moves
5 Ke2 win in 3 half-moves
6 Ke4 win in 3 half-moves
7 Rc2 win in 3 half-moves
8 Kb3 win in 5 half-moves
9 Kc2 win in 5 half-moves
10 Ke3 win in 5 half-moves
11 Kd5 draw
12 Rc1 draw
13 Kb5 loss in 2 half-moves
14 Kc5 loss in 2 half-moves
15 Ra3 loss in 2 half-moves
16 Rb3 loss in 2 half-moves