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

EGTB: win in 4 half-moves

# move score
1 Rc1 win in 3 half-moves
2 Kc2 win in 5 half-moves
3 Kc6 win in 5 half-moves
4 Kc5 win in 7 half-moves
5 Kd5 win in 7 half-moves
6 Ra1 win in 7 half-moves
7 Rd1 win in 7 half-moves
8 Ka1 draw
9 Ka2 draw
10 Ka3 draw
11 Kb3 draw
12 Kc1 draw
13 Kc3 draw
14 Kc7 draw
15 Kd7 draw
16 Ke5 draw
17 Ke6 draw
18 Re1 draw
19 Rf1 draw
20 Ke7 loss in 2 half-moves
21 Rg1 loss in 2 half-moves
22 Rh1 loss in 2 half-moves