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

EGTB: win in 4 half-moves

# move score
1 K3b4 win in 3 half-moves
2 K5b4 win in 3 half-moves
3 Kb2 win in 3 half-moves
4 Kb3 win in 3 half-moves
5 Kb5 win in 3 half-moves
6 Kb6 win in 3 half-moves
7 Kc2 win in 3 half-moves
8 Kd2 win in 3 half-moves
9 Kd3 win in 3 half-moves
10 Kd5 win in 3 half-moves
11 Rb4 win in 7 half-moves
12 K5d4 win in 9 half-moves
13 K3d4 win in 11 half-moves
14 Ra4 draw
15 Rh4 draw
16 Kc6 loss in 2 half-moves
17 Kd6 loss in 2 half-moves
18 Rd4 loss in 2 half-moves
19 Re4 loss in 2 half-moves
20 Rf4 loss in 2 half-moves
21 Rg4 loss in 2 half-moves