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 Ke1 draw
3 Ke2 draw
4 Kf2 draw
5 Kg1 loss in 18 half-moves
6 Kg2 loss in 18 half-moves
7 Rg1 loss in 12 half-moves
8 Rg3 loss in 12 half-moves
9 Rc8 loss in 4 half-moves
10 Rh8 loss in 4 half-moves
11 Rb8 loss in 2 half-moves
12 Rd8 loss in 2 half-moves
13 Re8 loss in 2 half-moves
14 Rf8 loss in 2 half-moves
15 Rg2 loss in 2 half-moves
16 Rg5 loss in 2 half-moves
17 Rg6 loss in 2 half-moves
18 Rg7 loss in 2 half-moves
19 Ra8 loss in 1 half-moves