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 Kb3 win in 5 half-moves
3 Kb4 win in 5 half-moves
4 Kb7 win in 5 half-moves
5 Kb5 win in 7 half-moves
6 Kc5 win in 7 half-moves
7 Kb8 win in 9 half-moves
8 Kc3 win in 9 half-moves
9 Rc8 win in 9 half-moves
10 Rh8 win in 9 half-moves
11 Ka6 draw
12 Rb8 draw
13 Kd3 loss in 2 half-moves
14 Kd4 loss in 2 half-moves
15 Kd5 loss in 2 half-moves
16 Rd8 loss in 2 half-moves
17 Re8 loss in 2 half-moves
18 Rf8 loss in 2 half-moves
19 Rg8 loss in 2 half-moves