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

EGTB: win in 6 half-moves

# move score
1 Kb7 win in 5 half-moves
2 Kc7 win in 5 half-moves
3 Kd4 win in 5 half-moves
4 Kd6 win in 5 half-moves
5 Rd7 win in 5 half-moves
6 Kc8 win in 9 half-moves
7 Rd6 win in 9 half-moves
8 Ka7 draw
9 Ka8 draw
10 Kc4 loss in 2 half-moves
11 Kc5 loss in 2 half-moves
12 Kc6 loss in 2 half-moves
13 Ke4 loss in 2 half-moves
14 Ke5 loss in 2 half-moves
15 Ke6 loss in 2 half-moves
16 Rc8 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
20 Rh8 loss in 2 half-moves