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

EGTB: win in 4 half-moves

# move score
1 Kb7 win in 3 half-moves
2 Kc5 win in 3 half-moves
3 Rc1 win in 3 half-moves
4 Ka5 win in 5 half-moves
5 Kc2 win in 5 half-moves
6 Kc7 win in 5 half-moves
7 Kd2 win in 5 half-moves
8 Rb2 win in 5 half-moves
9 Kc4 win in 9 half-moves
10 Rb4 win in 9 half-moves
11 Kc3 win in 11 half-moves
12 Kd4 win in 11 half-moves
13 Rb3 win in 11 half-moves
14 Kb5 win in 13 half-moves
15 Ka6 draw
16 Ka7 draw
17 Kc6 draw
18 Ke2 draw
19 Ra1 draw
20 Rd1 draw
21 Re1 draw
22 Rf1 draw
23 Ke3 loss in 2 half-moves
24 Ke4 loss in 2 half-moves
25 Rb5 loss in 2 half-moves
26 Rg1 loss in 2 half-moves
27 Rh1 loss in 2 half-moves