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 Ke7 draw
3 Ke8 draw
4 Rc2 draw
5 Rc3 draw
6 Rc4 draw
7 Kc7 loss in 2 half-moves
8 Kd7 loss in 2 half-moves
9 Ra8 loss in 2 half-moves
10 Rb8 loss in 2 half-moves
11 Rc5 loss in 2 half-moves
12 Rc6 loss in 2 half-moves
13 Rc7 loss in 2 half-moves