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

EGTB: win in 4 half-moves

# move score
1 Kb8 win in 3 half-moves
2 Kc3 win in 3 half-moves
3 Kc5 win in 3 half-moves
4 Rc4 win in 3 half-moves
5 Rd4 win in 3 half-moves
6 Rf7 win in 5 half-moves
7 Ka3 draw
8 Ka4 draw
9 Ka5 draw
10 Kb3 draw
11 Kc4 draw
12 Kc7 draw
13 Kd7 draw
14 Kd8 draw
15 Re4 draw
16 Rf3 draw
17 Rf5 draw
18 Rf6 draw
19 Rf8 draw
20 Kb5 loss in 2 half-moves
21 Kb7 loss in 2 half-moves
22 Rf1 loss in 2 half-moves
23 Rf2 loss in 2 half-moves
24 Rg4 loss in 2 half-moves
25 Rh4 loss in 2 half-moves