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 Kc7 draw
3 Kd7 draw
4 Rc2 draw
5 Rc3 draw
6 Rc4 draw
7 Rc5 draw
8 Rc6 draw
9 Rb8 loss in 14 half-moves
10 Ra8 loss in 12 half-moves
11 Ke7 loss in 2 half-moves
12 Ke8 loss in 2 half-moves
13 Rc7 loss in 2 half-moves