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

EGTB: win in 6 half-moves

# move score
1 Rf4 win in 5 half-moves
2 Ra4 draw
3 Rb4 draw
4 Rc4 draw
5 Rd4 draw
6 Re4 draw
7 Rg1 draw
8 Rg2 draw
9 Rg5 draw
10 f7 loss in 2 half-moves
11 Rg3 loss in 2 half-moves
12 Rg6 loss in 2 half-moves
13 Rg7 loss in 2 half-moves
14 Rg8 loss in 2 half-moves
15 Rh4 loss in 2 half-moves