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 Kcc4 win in 3 half-moves
5 Kdc4 win in 3 half-moves
6 Rh4 win in 3 half-moves
7 Rh6 win in 3 half-moves
8 Kcc6 draw
9 Kcd6 draw
10 Kdc6 draw
11 Kdd6 draw
12 Ke5 draw
13 Ke6 draw
14 Ra3 draw
15 Rg3 draw
16 Rh5 draw
17 Rh7 draw
18 Rh8 draw
19 Kcd4 loss in 2 half-moves
20 Kdd4 loss in 2 half-moves
21 Ke4 loss in 2 half-moves
22 Rb3 loss in 2 half-moves
23 Rc3 loss in 2 half-moves
24 Rd3 loss in 2 half-moves
25 Re3 loss in 2 half-moves
26 Rf3 loss in 2 half-moves
27 Rh1 loss in 2 half-moves
28 Rh2 loss in 2 half-moves