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

EGTB: win in 4 half-moves

# move score
1 Rc7 win in 3 half-moves
2 Ra3 draw
3 Rb3 draw
4 Rc1 draw
5 Rc2 draw
6 Rc4 draw
7 Rd3 draw
8 Re3 draw
9 Rf3 draw
10 Rc5 loss in 2 half-moves
11 Rc6 loss in 2 half-moves
12 Rc8 loss in 2 half-moves
13 Rg3 loss in 2 half-moves
14 Rh3 loss in 2 half-moves