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 Kb7 win in 3 half-moves
4 Kc6 win in 3 half-moves
5 Ra4 win in 3 half-moves
6 Rb5 win in 3 half-moves
7 Rc4 win in 3 half-moves
8 Kb5 win in 5 half-moves
9 Kc4 win in 5 half-moves
10 Kd3 win in 9 half-moves
11 Kd5 win in 9 half-moves
12 Ka7 draw
13 Kbc5 draw
14 Kc3 draw
15 Kc7 draw
16 Kdc5 draw
17 Ke5 draw
18 Ke3 loss in 2 half-moves
19 Ke4 loss in 2 half-moves
20 Rb1 loss in 2 half-moves
21 Rb2 loss in 2 half-moves
22 Rb3 loss in 2 half-moves