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 Kc5 draw
3 Kc6 draw
4 Kd6 draw
5 Ke5 draw
6 Ra6 draw
7 Rb4 draw
8 Rc4 draw
9 Rd4 draw
10 Re4 draw
11 Ra1 loss in 6 half-moves
12 Ra2 loss in 6 half-moves
13 Kc4 loss in 4 half-moves
14 Kd4 loss in 4 half-moves
15 Ke4 loss in 4 half-moves
16 Ra5 loss in 4 half-moves
17 Ke6 loss in 2 half-moves
18 Ra7 loss in 2 half-moves
19 Ra8 loss in 2 half-moves
20 Rf4 loss in 2 half-moves
21 Rh4 loss in 2 half-moves
22 Ra3 loss in 1 half-moves