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 Kc4 draw
3 Kc5 draw
4 Kd4 draw
5 Ke5 draw
6 Ra1 draw
7 Ra3 draw
8 Ra5 draw
9 Ra6 draw
10 Rd4 draw
11 Re4 draw
12 Kc6 loss in 2 half-moves
13 Kd6 loss in 2 half-moves
14 Ke4 loss in 2 half-moves
15 Ke6 loss in 2 half-moves
16 Ra2 loss in 2 half-moves
17 Ra7 loss in 2 half-moves
18 Ra8 loss in 2 half-moves
19 Rb4 loss in 2 half-moves
20 Rc4 loss in 2 half-moves
21 Rf4 loss in 2 half-moves
22 Rh4 loss in 2 half-moves