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

EGTB: win in 4 half-moves

# move score
1 Kb4 win in 3 half-moves
2 Kc4 win in 7 half-moves
3 Kd2 win in 7 half-moves
4 Rc2 win in 9 half-moves
5 Kc6 win in 11 half-moves
6 Kd1 win in 11 half-moves
7 Kf1 win in 11 half-moves
8 Kf2 win in 11 half-moves
9 Kf3 win in 11 half-moves
10 Rc3 win in 11 half-moves
11 Kd3 win in 15 half-moves
12 Ke1 win in 19 half-moves
13 Kb5 draw
14 Kb6 draw
15 Ke3 draw
16 Ra1 draw
17 Rb1 draw
18 Rc4 draw
19 Re1 draw
20 Rh1 draw
21 Kd4 loss in 2 half-moves
22 Kd5 loss in 2 half-moves
23 Kd6 loss in 2 half-moves
24 Rd1 loss in 2 half-moves
25 Rf1 loss in 2 half-moves
26 Rg1 loss in 2 half-moves