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

EGTB: win in 4 half-moves

# move score
1 Kb7 win in 3 half-moves
2 Kc7 win in 3 half-moves
3 Kd7 win in 3 half-moves
4 Ke6 win in 5 half-moves
5 Kd6 win in 11 half-moves
6 Rd8 win in 11 half-moves
7 Kb8 draw
8 Kc5 draw
9 Kc6 draw
10 Kd8 draw
11 Ke5 draw
12 Re8 draw
13 Rf3 draw
14 Rf4 draw
15 Rf5 draw
16 Rf6 draw
17 Rf7 draw
18 Rg8 draw
19 Rh8 draw
20 Kc4 loss in 2 half-moves
21 Kd4 loss in 2 half-moves
22 Ke4 loss in 2 half-moves
23 Rf1 loss in 2 half-moves
24 Rf2 loss in 2 half-moves