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

EGTB: win in 6 half-moves

# move score
1 Ka6 win in 5 half-moves
2 Kb5 win in 5 half-moves
3 Kb6 win in 5 half-moves
4 Ra8 win in 9 half-moves
5 Rb8 win in 13 half-moves
6 Ka4 draw
7 Kb4 draw
8 Kc7 draw
9 Kd7 draw
10 Ke7 draw
11 Ke8 draw
12 Rc4 draw
13 Rc5 draw
14 Rc6 draw
15 Rc7 draw
16 Rc1 loss in 2 half-moves
17 Rc2 loss in 2 half-moves
18 Rc3 loss in 2 half-moves