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

EGTB: win in 4 half-moves

# move score
1 Kb6 win in 3 half-moves
2 Kb7 win in 3 half-moves
3 Kc6 win in 3 half-moves
4 Kcc8 win in 3 half-moves
5 Rf6 win in 3 half-moves
6 Kb8 win in 5 half-moves
7 Ke7 win in 5 half-moves
8 Ke8 win in 5 half-moves
9 Kcd7 draw
10 Kd6 draw
11 Kdc8 draw
12 Kdd7 draw
13 Rf3 draw
14 Rf4 draw
15 Rf5 draw
16 Rf8 draw
17 Rg7 draw
18 Rh7 draw
19 Rd7 loss in 2 half-moves
20 Re7 loss in 2 half-moves
21 Rf1 loss in 2 half-moves
22 Rf2 loss in 2 half-moves