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

EGTB: win in 2 half-moves

# move score
1 Rg4 win in 1 half-moves
2 Kg7 draw
3 Kg8 draw
4 Kh7 draw
5 Ra4 draw
6 Re4 draw
7 Rf2 draw
8 Rf6 draw
9 Rf8 draw
10 Rh4 draw
11 Rb4 loss in 2 half-moves
12 Rc4 loss in 2 half-moves
13 Rd4 loss in 2 half-moves
14 Rf1 loss in 2 half-moves
15 Rf3 loss in 2 half-moves
16 Rf5 loss in 2 half-moves
17 Rf7 loss in 2 half-moves