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

EGTB: win in 4 half-moves

# move score
1 Kb6 win in 3 half-moves
2 Ka4 draw
3 Ka5 draw
4 Ka6 draw
5 Kb7 draw
6 Kb8 draw
7 Kc5 draw
8 Kc6 draw
9 Kc7 draw
10 Kd7 draw
11 Kd8 draw
12 Rf4 draw
13 Rf5 draw
14 Rf6 draw
15 Rf7 draw
16 Rg8 draw
17 Rh8 draw
18 Kb4 loss in 2 half-moves
19 Kc4 loss in 2 half-moves
20 Rd8 loss in 2 half-moves
21 Re8 loss in 2 half-moves
22 Rf1 loss in 2 half-moves
23 Rf2 loss in 2 half-moves
24 Rf3 loss in 2 half-moves