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

EGTB: win in 4 half-moves

# move score
1 K7d8 win in 3 half-moves
2 K7f8 win in 3 half-moves
3 K7d7 win in 5 half-moves
4 K8d7 win in 5 half-moves
5 K8d8 win in 5 half-moves
6 Rc6 win in 7 half-moves
7 K7f7 draw
8 K8f7 draw
9 K8f8 draw
10 Ra7 draw
11 Rb7 draw
12 Rc1 draw
13 Rc5 draw
14 Rc8 draw
15 Kd6 loss in 2 half-moves
16 Ke6 loss in 2 half-moves
17 Kf6 loss in 2 half-moves
18 Rc2 loss in 2 half-moves
19 Rc3 loss in 2 half-moves
20 Rc4 loss in 2 half-moves
21 Rd7 loss in 2 half-moves