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

EGTB: win in 2 half-moves

# move score
1 Rg8 win in 1 half-moves
2 Rb1 draw
3 Rb2 draw
4 Rb3 draw
5 Rb4 draw
6 Rb5 draw
7 Rd8 draw
8 Re8 draw
9 Rf8 draw
10 K7b7 loss in 2 half-moves
11 K8b7 loss in 2 half-moves
12 Ka6 loss in 2 half-moves
13 Kb6 loss in 2 half-moves
14 Rb6 loss in 2 half-moves
15 Rb7 loss in 2 half-moves
16 Rc8 loss in 2 half-moves
17 Rh8 loss in 2 half-moves