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

EGTB: win in 4 half-moves

# move score
1 Kb4 win in 3 half-moves
2 Ka4 win in 5 half-moves
3 Ka2 draw
4 Kb2 draw
5 Kb3 draw
6 Kd5 draw
7 Kd6 draw
8 Kd7 draw
9 Ke5 draw
10 Ke7 draw
11 Kf5 draw
12 Kf6 draw
13 Kf7 draw
14 Rf6 draw
15 Rg1 draw
16 Rg2 draw
17 Rg3 draw
18 Rg4 draw
19 Rg5 draw
20 Rh6 draw
21 Rg7 loss in 2 half-moves
22 Rg8 loss in 2 half-moves