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 Kb8 win in 3 half-moves
3 Kc6 win in 3 half-moves
4 Kd6 win in 3 half-moves
5 Ke6 win in 3 half-moves
6 Rf6 win in 3 half-moves
7 Ke7 win in 7 half-moves
8 Ke8 win in 7 half-moves
9 Kcc7 draw
10 Kcd8 draw
11 Kdc7 draw
12 Kdd8 draw
13 Ra5 draw
14 Re5 draw
15 Rf3 draw
16 Rf4 draw
17 Rf7 draw
18 Rf8 draw
19 Rg5 draw
20 Rh5 draw
21 Rb5 loss in 2 half-moves
22 Rc5 loss in 2 half-moves
23 Rd5 loss in 2 half-moves
24 Rf1 loss in 2 half-moves
25 Rf2 loss in 2 half-moves