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

EGTB: win in 4 half-moves

# move score
1 Rc5 win in 3 half-moves
2 Rc1 draw
3 Rc2 draw
4 Rc3 draw
5 Rc4 draw
6 Rc6 draw
7 Rc7 draw
8 Ke8 loss in 2 half-moves
9 Ra8 loss in 2 half-moves
10 Rb8 loss in 2 half-moves
11 Kc7 loss in 1 half-moves
12 Kd7 loss in 1 half-moves
13 Ke7 loss in 1 half-moves