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

EGTB: win in 4 half-moves

# move score
1 Kb3 win in 3 half-moves
2 Kb4 win in 11 half-moves
3 Rb1 win in 11 half-moves
4 Kb5 win in 13 half-moves
5 Ra1 win in 13 half-moves
6 Ka3 win in 15 half-moves
7 Ka5 win in 23 half-moves
8 Rd1 win in 31 half-moves
9 Kd1 win in 33 half-moves
10 Kd2 draw
11 Ke2 draw
12 Kf1 draw
13 Kf2 draw
14 Rc2 draw
15 Rc3 loss in 2 half-moves
16 Rc4 loss in 2 half-moves
17 Rc5 loss in 2 half-moves
18 Rc6 loss in 2 half-moves
19 Rc7 loss in 2 half-moves
20 Rc8 loss in 2 half-moves