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 Kg4 draw
3 Kg5 draw
4 Kh4 draw
5 Rc4 draw
6 Rd6 draw
7 Rd8 draw
8 Re4 draw
9 Rf4 draw
10 Rh4 draw
11 Kg6 loss in 2 half-moves
12 Kh6 loss in 2 half-moves
13 Ra4 loss in 2 half-moves
14 Rb4 loss in 2 half-moves
15 Rd1 loss in 2 half-moves
16 Rd2 loss in 2 half-moves
17 Rd3 loss in 2 half-moves
18 Rd5 loss in 2 half-moves
19 Rd7 loss in 2 half-moves