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

EGTB: win in 4 half-moves

# move score
1 Kb4 win in 3 half-moves
2 Kb5 win in 3 half-moves
3 Kcd4 win in 3 half-moves
4 Kcd5 win in 3 half-moves
5 Kd3 win in 3 half-moves
6 Rb5 win in 3 half-moves
7 Rd5 win in 3 half-moves
8 Ked5 win in 5 half-moves
9 Kb3 draw
10 Kc3 draw
11 Kf4 draw
12 Ra5 draw
13 Kd6 loss in 2 half-moves
14 Ke4 loss in 2 half-moves
15 Ke6 loss in 2 half-moves
16 Ked4 loss in 2 half-moves
17 Kf5 loss in 2 half-moves
18 Kf6 loss in 2 half-moves
19 Rc6 loss in 2 half-moves
20 Rc7 loss in 2 half-moves
21 Rc8 loss in 2 half-moves