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 Kd2 win in 3 half-moves
4 Ke2 win in 3 half-moves
5 Rb2 win in 3 half-moves
6 Rc1 win in 3 half-moves
7 Ke1 draw
8 Ra1 draw
9 Rb3 draw
10 Rb4 draw
11 Rb5 draw
12 Rb6 loss in 2 half-moves
13 Rb7 loss in 2 half-moves
14 Rb8 loss in 2 half-moves