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

EGTB: win in 4 half-moves

# move score
1 Rg8 win in 3 half-moves
2 K1e1 draw
3 K1e2 draw
4 K1g1 draw
5 K1g2 draw
6 K2e1 draw
7 K2e2 draw
8 K2g1 draw
9 K2g2 draw
10 Kg3 draw
11 Ra8 draw
12 Rb1 draw
13 Rb2 draw
14 Rb3 draw
15 Rb7 draw
16 Rf8 draw
17 Rh8 draw
18 Ke3 loss in 2 half-moves
19 Kf3 loss in 2 half-moves
20 Rb4 loss in 2 half-moves
21 Rb5 loss in 2 half-moves
22 Rb6 loss in 2 half-moves
23 Rc8 loss in 2 half-moves
24 Rd8 loss in 2 half-moves
25 Re8 loss in 2 half-moves