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

EGTB: win in 4 half-moves

# move score
1 Ka6 win in 3 half-moves
2 Ka7 win in 3 half-moves
3 Kc6 win in 3 half-moves
4 Kb3 win in 5 half-moves
5 Kb4 win in 5 half-moves
6 Kc4 win in 5 half-moves
7 Rc8 win in 11 half-moves
8 Ka8 draw
9 Kb2 draw
10 Kb6 draw
11 Kc2 draw
12 Kc7 draw
13 Kc8 draw
14 Kd2 draw
15 Ra8 draw
16 Rd8 draw
17 Rh8 draw
18 Kd3 loss in 2 half-moves
19 Kd4 loss in 2 half-moves
20 Re8 loss in 2 half-moves
21 Rf8 loss in 2 half-moves
22 Rg8 loss in 2 half-moves