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

EGTB: win in 4 half-moves

# move score
1 Kb5 win in 3 half-moves
2 Ka4 draw
3 Ka6 draw
4 Kb6 draw
5 Ke2 draw
6 Ke4 draw
7 Kf2 draw
8 Kf3 draw
9 Kf4 draw
10 Rc7 draw
11 Rd7 draw
12 Re7 draw
13 Rf7 draw
14 Rg7 draw
15 Rh3 draw
16 Rh4 draw
17 Rh5 draw
18 Rh6 draw
19 Rh8 draw
20 Kb4 loss in 2 half-moves
21 Kd2 loss in 2 half-moves
22 Kd3 loss in 2 half-moves
23 Kd4 loss in 2 half-moves
24 Ra7 loss in 2 half-moves
25 Rb7 loss in 2 half-moves
26 Rh1 loss in 2 half-moves
27 Rh2 loss in 2 half-moves