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

EGTB: win in 4 half-moves

# move score
1 Kc1 win in 3 half-moves
2 Kc2 win in 3 half-moves
3 Kde1 win in 3 half-moves
4 Kde2 win in 3 half-moves
5 Ke3 win in 3 half-moves
6 Re1 win in 3 half-moves
7 Kd3 win in 7 half-moves
8 Kf2 win in 7 half-moves
9 Kfe2 win in 7 half-moves
10 Kg1 win in 7 half-moves
11 Kg2 win in 7 half-moves
12 Kfe1 draw
13 Rc1 draw
14 Kc3 loss in 2 half-moves
15 Ra1 loss in 2 half-moves
16 Rb1 loss in 2 half-moves