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 Kc4 win in 3 half-moves
3 Kd4 win in 3 half-moves
4 Ke5 win in 3 half-moves
5 Ke6 win in 3 half-moves
6 Ke7 win in 3 half-moves
7 Re3 win in 3 half-moves
8 Rf4 win in 3 half-moves
9 Rc3 win in 5 half-moves
10 Rd3 win in 5 half-moves
11 Rf5 win in 5 half-moves
12 Rf6 win in 5 half-moves
13 Kb5 win in 7 half-moves
14 Kcd5 win in 7 half-moves
15 Kd7 win in 7 half-moves
16 Kdd5 win in 7 half-moves
17 Rf1 win in 7 half-moves
18 Rh3 win in 7 half-moves
19 Rf2 draw
20 Rg3 draw
21 Kb6 loss in 2 half-moves
22 Kc7 loss in 2 half-moves
23 Kcc6 loss in 2 half-moves
24 Kdc6 loss in 2 half-moves
25 Ra3 loss in 2 half-moves
26 Rb3 loss in 2 half-moves
27 Rf7 loss in 2 half-moves
28 Rf8 loss in 2 half-moves