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

EGTB: win in 4 half-moves

# move score
1 Ka6 win in 3 half-moves
2 Ka7 win in 3 half-moves
3 Ka8 win in 3 half-moves
4 Kb6 win in 3 half-moves
5 Kb8 win in 3 half-moves
6 Kd6 win in 3 half-moves
7 Kd8 win in 3 half-moves
8 Kdc6 win in 3 half-moves
9 Kdc8 win in 3 half-moves
10 Ke6 win in 3 half-moves
11 Ke7 win in 3 half-moves
12 Ke8 win in 3 half-moves
13 Rc6 win in 3 half-moves
14 Rc8 win in 3 half-moves
15 Kbc6 win in 7 half-moves
16 Kbc8 draw
17 Rc4 draw
18 Rc5 draw
19 Rc1 loss in 2 half-moves
20 Rc2 loss in 2 half-moves
21 Rc3 loss in 2 half-moves