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 Kcd8 win in 3 half-moves
3 Ked8 win in 3 half-moves
4 Kf7 win in 3 half-moves
5 Kf8 win in 3 half-moves
6 Re7 win in 3 half-moves
7 Rf7 win in 3 half-moves
8 Ke7 draw
9 Rc7 draw
10 Rd3 draw
11 Rd8 draw
12 Rg7 draw
13 Rh7 draw
14 Kb7 loss in 2 half-moves
15 Kc7 loss in 2 half-moves
16 Ra7 loss in 2 half-moves
17 Rb7 loss in 2 half-moves
18 Rd1 loss in 2 half-moves
19 Rd2 loss in 2 half-moves
20 Rd4 loss in 2 half-moves
21 Rd5 loss in 2 half-moves
22 Rd6 loss in 2 half-moves