Click on the third or sixth rank to set the en passant target square.

EGTB: win in 4 half-moves

# move score
1 Rb8 win in 3 half-moves
2 Rg4 win in 3 half-moves
3 Rg7 win in 3 half-moves
4 Kb5 draw
5 Kb6 draw
6 Kb7 draw
7 Kc7 draw
8 Kcc5 draw
9 Kcd6 draw
10 Kd7 draw
11 Kdc5 draw
12 Kdd6 draw
13 Ke5 draw
14 Ke6 draw
15 Ra8 draw
16 Rc8 draw
17 Rd8 draw
18 Rg3 draw
19 Rg5 draw
20 Rg6 draw
21 Rh8 draw
22 Kc4 loss in 2 half-moves
23 Kd4 loss in 2 half-moves
24 Ke4 loss in 2 half-moves
25 Re8 loss in 2 half-moves
26 Rf8 loss in 2 half-moves
27 Rg1 loss in 2 half-moves
28 Rg2 loss in 2 half-moves