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

EGTB: win in 4 half-moves

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