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

EGTB: win in 2 half-moves

# move score
1 Rc1 win in 1 half-moves
2 Kc6 draw
3 Kc8 draw
4 Kd8 draw
5 Ke7 draw
6 Ke8 draw
7 Ra7 draw
8 Rb7 draw
9 Rc6 draw
10 Rc8 draw
11 Kd6 loss in 2 half-moves
12 Ke6 loss in 2 half-moves
13 Rc2 loss in 2 half-moves
14 Rc3 loss in 2 half-moves
15 Rc4 loss in 2 half-moves
16 Rc5 loss in 2 half-moves