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

EGTB: win in 4 half-moves

# move score
1 Kb3 win in 3 half-moves
2 Kc2 win in 9 half-moves
3 Ra1 win in 9 half-moves
4 Kc3 win in 11 half-moves
5 Rc2 win in 11 half-moves
6 Kb4 draw
7 Kb5 draw
8 Kc5 draw
9 Ke1 draw
10 Rb1 draw
11 Kd2 loss in 2 half-moves
12 Kd3 loss in 2 half-moves
13 Kd4 loss in 2 half-moves
14 Kd5 loss in 2 half-moves
15 Ke2 loss in 2 half-moves
16 Rc3 loss in 2 half-moves