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

EGTB: win in 4 half-moves

# move score
1 Kc7 win in 3 half-moves
2 Kc8 win in 3 half-moves
3 Rc8 win in 3 half-moves
4 Kbb7 win in 7 half-moves
5 Kb6 win in 9 half-moves
6 Ka6 draw
7 Kaa8 draw
8 Kab7 draw
9 Kba8 draw
10 Rd1 draw
11 Rd7 draw
12 Re8 draw
13 Rd2 loss in 2 half-moves
14 Rd3 loss in 2 half-moves
15 Rd4 loss in 2 half-moves
16 Rd5 loss in 2 half-moves
17 Rd6 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