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 Kd1 draw
3 Kd2 draw
4 Ke2 draw
5 Rc1 draw
6 Rc3 draw
7 Rc5 draw
8 Rc8 draw
9 Rd4 draw
10 Re4 draw
11 Rf4 draw
12 Kf1 loss in 2 half-moves
13 Kf2 loss in 2 half-moves
14 Ra4 loss in 2 half-moves
15 Rb4 loss in 2 half-moves
16 Rc2 loss in 2 half-moves
17 Rc6 loss in 2 half-moves
18 Rc7 loss in 2 half-moves
19 Rh4 loss in 2 half-moves