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 Re3 draw
3 Rf1 draw
4 Rf2 draw
5 Rf4 draw
6 Rf5 draw
7 Rg3 draw
8 Rh3 draw
9 Ra3 loss in 2 half-moves
10 Rb3 loss in 2 half-moves
11 Rd3 loss in 2 half-moves
12 Rf6 loss in 2 half-moves
13 Rf7 loss in 2 half-moves
14 Rf8 loss in 2 half-moves