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

EGTB: win in 4 half-moves

# move score
1 Rc3 win in 3 half-moves
2 Rc6 draw
3 Rc8 draw
4 Rd7 draw
5 Re7 draw
6 Rf7 draw
7 Rg7 draw
8 Rh7 draw
9 Ra7 loss in 2 half-moves
10 Rb7 loss in 2 half-moves
11 Rc1 loss in 2 half-moves
12 Rc2 loss in 2 half-moves
13 Rc4 loss in 2 half-moves
14 Rc5 loss in 2 half-moves