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 Ka2 draw
3 Ka4 draw
4 Kb2 draw
5 Kb3 draw
6 Kd5 draw
7 Kd6 draw
8 Ke7 draw
9 Kf6 draw
10 Kf7 draw
11 Ra7 draw
12 Rb7 draw
13 Rc7 draw
14 Rd1 draw
15 Rd5 draw
16 Rd6 draw
17 Rd8 draw
18 Re7 draw
19 Ke5 loss in 2 half-moves
20 Kf5 loss in 2 half-moves
21 Rd2 loss in 2 half-moves
22 Rd3 loss in 2 half-moves
23 Rd4 loss in 2 half-moves
24 Rf7 loss in 2 half-moves
25 Rg7 loss in 2 half-moves
26 Rh7 loss in 2 half-moves