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

EGTB: win in 4 half-moves

# move score
1 Kc3 win in 3 half-moves
2 Kc4 win in 3 half-moves
3 Rc1 win in 3 half-moves
4 Rb1 win in 5 half-moves
5 Kc2 win in 7 half-moves
6 Ka4 draw
7 Ka6 draw
8 Kb4 draw
9 Kb5 draw
10 Kb6 draw
11 Kd2 draw
12 Kd4 draw
13 Ke2 draw
14 Ke3 draw
15 Ke4 draw
16 Ra1 draw
17 Rd2 draw
18 Re1 draw
19 Rf1 draw
20 Rg1 loss in 2 half-moves
21 Rh1 loss in 2 half-moves