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 Kb6 draw
3 Kb7 draw
4 Kc1 draw
5 Kc2 draw
6 Kc7 draw
7 Kd1 draw
8 Ke1 draw
9 Ke2 draw
10 Ra2 draw
11 Ra4 draw
12 Ra6 draw
13 Rb8 draw
14 Rc8 draw
15 Rh8 draw
16 Kc3 loss in 2 half-moves
17 Kc5 loss in 2 half-moves
18 Kd3 loss in 2 half-moves
19 Kd5 loss in 2 half-moves
20 Kd6 loss in 2 half-moves
21 Kd7 loss in 2 half-moves
22 Ke3 loss in 2 half-moves
23 Ra1 loss in 2 half-moves
24 Ra3 loss in 2 half-moves
25 Ra5 loss in 2 half-moves
26 Ra7 loss in 2 half-moves
27 Rd8 loss in 2 half-moves
28 Re8 loss in 2 half-moves
29 Rf8 loss in 2 half-moves
30 Rg8 loss in 2 half-moves