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 Ra4 draw
3 Rb4 draw
4 Rc1 draw
5 Rc2 draw
6 Rc3 draw
7 Rc5 draw
8 Rd4 draw
9 Re4 draw
10 Rc6 loss in 2 half-moves
11 Rc7 loss in 2 half-moves
12 Rc8 loss in 2 half-moves
13 Rf4 loss in 2 half-moves
14 Rh4 loss in 2 half-moves