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

EGTB: win in 4 half-moves

# move score
1 Kb2 win in 3 half-moves
2 Kb3 win in 3 half-moves
3 Rf1 win in 7 half-moves
4 Rf2 win in 7 half-moves
5 Ka1 draw
6 Ka2 draw
7 Kb4 draw
8 Kc1 draw
9 Kc2 draw
10 Kd4 draw
11 Rd4 draw
12 Re4 draw
13 Rf6 draw
14 Rg4 draw
15 Rh4 draw
16 Kb5 loss in 2 half-moves
17 Kc3 loss in 2 half-moves
18 Kc5 loss in 2 half-moves
19 Kd3 loss in 2 half-moves
20 Kd5 loss in 2 half-moves
21 Rf3 loss in 2 half-moves
22 Rf5 loss in 2 half-moves
23 Rf7 loss in 2 half-moves
24 Rf8 loss in 2 half-moves