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 Kb6 win in 3 half-moves
4 Kcc6 win in 5 half-moves
5 Kdc6 win in 5 half-moves
6 Kcc4 draw
7 Kcd4 draw
8 Kdc4 draw
9 Kdd4 draw
10 Ra7 draw
11 Rb5 draw
12 Kcd6 loss in 2 half-moves
13 Kdd6 loss in 2 half-moves
14 Ke4 loss in 2 half-moves
15 Ke5 loss in 2 half-moves
16 Ke6 loss in 2 half-moves
17 Ra1 loss in 2 half-moves
18 Ra2 loss in 2 half-moves
19 Ra3 loss in 2 half-moves
20 Ra4 loss in 2 half-moves
21 Ra6 loss in 2 half-moves
22 Ra8 loss in 2 half-moves