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

EGTB: win in 4 half-moves

# move score
1 Kc2 win in 3 half-moves
2 Kc3 win in 3 half-moves
3 Kc4 win in 3 half-moves
4 Ke2 win in 3 half-moves
5 Rb1 win in 3 half-moves
6 Rc1 win in 3 half-moves
7 Kb2 win in 7 half-moves
8 Rd2 win in 7 half-moves
9 Ka2 draw
10 Ka4 draw
11 Kb3 draw
12 Kb4 draw
13 Kd2 draw
14 Kd4 draw
15 Ra1 draw
16 Re1 draw
17 Ke3 loss in 2 half-moves
18 Ke4 loss in 2 half-moves
19 Rf1 loss in 2 half-moves
20 Rg1 loss in 2 half-moves
21 Rh1 loss in 2 half-moves