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 Kb6 win in 3 half-moves
3 Kcd4 win in 3 half-moves
4 Kcd6 win in 3 half-moves
5 Rb7 win in 3 half-moves
6 Re7 win in 3 half-moves
7 Kcc6 win in 5 half-moves
8 Kdc6 win in 5 half-moves
9 Rc6 win in 5 half-moves
10 Kb5 draw
11 Kcc4 draw
12 Kdc4 draw
13 Kdd4 draw
14 Kdd6 draw
15 Ra7 draw
16 Rc8 draw
17 Rd7 draw
18 Rf7 draw
19 Ke4 loss in 2 half-moves
20 Ke5 loss in 2 half-moves
21 Ke6 loss in 2 half-moves
22 Rg7 loss in 2 half-moves
23 Rh7 loss in 2 half-moves