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

EGTB: win in 10 half-moves

# move score
1 Kb5 win in 9 half-moves
2 Ka5 draw
3 Ka7 draw
4 Kb6 draw
5 Kb7 draw
6 Kd1 draw
7 Kd2 draw
8 Kf1 draw
9 Kf2 draw
10 Ra1 draw
11 Rb1 draw
12 Rc2 draw
13 Rc3 draw
14 Rc4 draw
15 Rc8 draw
16 Rd1 draw
17 Ke2 loss in 2 half-moves
18 Rc5 loss in 2 half-moves
19 Rc6 loss in 2 half-moves
20 Rc7 loss in 2 half-moves