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 Kc6 win in 3 half-moves
3 Rc1 win in 3 half-moves
4 Rd1 win in 3 half-moves
5 Kb2 win in 5 half-moves
6 Kc4 win in 5 half-moves
7 Kd6 win in 5 half-moves
8 Rb2 win in 5 half-moves
9 Kc3 win in 11 half-moves
10 Ka2 draw
11 Ka3 draw
12 Ka4 draw
13 Kc2 draw
14 Kc7 draw
15 Kc8 draw
16 Kd8 draw
17 Ke7 draw
18 Ke8 draw
19 Ra1 draw
20 Re1 draw
21 Rf1 draw
22 Ke6 loss in 2 half-moves
23 Rg1 loss in 2 half-moves
24 Rh1 loss in 2 half-moves