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

EGTB: win in 2 half-moves

# move score
1 Kc7 win in 1 half-moves
2 Rb3 win in 1 half-moves
3 Rb5 win in 1 half-moves
4 Rc8 draw
5 Kd7 loss in 2 half-moves
6 Ke7 loss in 2 half-moves
7 Ke8 loss in 2 half-moves
8 Ra8 loss in 2 half-moves
9 Rb1 loss in 2 half-moves
10 Rb2 loss in 2 half-moves
11 Rb6 loss in 2 half-moves
12 Rb7 loss in 2 half-moves
13 Kc8 loss in 1 half-moves
14 Rb4 loss in 1 half-moves