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 Rg6 win in 3 half-moves
3 Kb5 win in 5 half-moves
4 Kb6 win in 5 half-moves
5 Re8 win in 5 half-moves
6 Kcc6 draw
7 Kcd6 draw
8 Kdc6 draw
9 Kdd6 draw
10 Ke5 draw
11 Ke6 draw
12 Ra8 draw
13 Rc8 draw
14 Rd8 draw
15 Rf8 draw
16 Rg3 draw
17 Rg5 draw
18 Rg7 draw
19 Rh8 draw
20 Kb4 loss in 2 half-moves
21 Kcc4 loss in 2 half-moves
22 Kcd4 loss in 2 half-moves
23 Kdc4 loss in 2 half-moves
24 Kdd4 loss in 2 half-moves
25 Ke4 loss in 2 half-moves
26 Rb8 loss in 2 half-moves
27 Rg1 loss in 2 half-moves
28 Rg2 loss in 2 half-moves