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

EGTB: win in 4 half-moves

# move score
1 K7c8 win in 3 half-moves
2 K7e8 win in 3 half-moves
3 K7c7 win in 5 half-moves
4 K8c7 win in 5 half-moves
5 Rb6 win in 5 half-moves
6 Rc7 win in 5 half-moves
7 K7e7 draw
8 K8c8 draw
9 K8e7 draw
10 K8e8 draw
11 Ra7 draw
12 Rb1 draw
13 Rb5 draw
14 Rb8 draw
15 Kc6 loss in 2 half-moves
16 Kd6 loss in 2 half-moves
17 Ke6 loss in 2 half-moves
18 Rb2 loss in 2 half-moves
19 Rb3 loss in 2 half-moves
20 Rb4 loss in 2 half-moves