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 Rf2 win in 3 half-moves
3 Rd7 draw
4 Re7 draw
5 Rf8 draw
6 Rg7 draw
7 Rh7 draw
8 Ra7 loss in 2 half-moves
9 Rb7 loss in 2 half-moves
10 Rf1 loss in 2 half-moves
11 Rf3 loss in 2 half-moves
12 Rf4 loss in 2 half-moves
13 Rf5 loss in 2 half-moves
14 Rf6 loss in 2 half-moves