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

EGTB: win in 4 half-moves

# move score
1 Rg4 win in 3 half-moves
2 Rg8 win in 3 half-moves
3 Rg1 win in 15 half-moves
4 Rg2 win in 15 half-moves
5 Rg3 win in 15 half-moves
6 Rg5 loss in 4 half-moves
7 c5 loss in 2 half-moves
8 Re6 loss in 2 half-moves
9 Rf6 loss in 2 half-moves
10 Rg7 loss in 2 half-moves
11 Rh6 loss in 2 half-moves
12 Rd6 loss in 1 half-moves