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

EGTB: win in 4 half-moves

# move score
1 Rc2 win in 3 half-moves
2 Ka5 win in 5 half-moves
3 Ka6 win in 5 half-moves
4 Kb5 win in 5 half-moves
5 Kc1 win in 5 half-moves
6 Kc2 win in 5 half-moves
7 Kc3 win in 5 half-moves
8 Kc5 win in 5 half-moves
9 Kc6 win in 5 half-moves
10 Ra2 win in 7 half-moves
11 Rb3 win in 9 half-moves
12 Ka7 draw
13 Kb7 draw
14 Kc7 draw
15 Kd1 draw
16 Kd3 draw
17 Ke1 draw
18 Rb1 draw
19 Ke2 loss in 2 half-moves
20 Ke3 loss in 2 half-moves
21 Rb4 loss in 2 half-moves
22 Rb5 loss in 2 half-moves