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 K6a6 draw
3 K6c6 draw
4 K7a6 draw
5 K7a7 draw
6 K7c6 draw
7 K7c7 draw
8 Ka8 draw
9 Kc8 draw
10 Ra8 draw
11 Rc8 draw
12 Rd8 draw
13 Re8 draw
14 K6a7 loss in 2 half-moves
15 K6c7 loss in 2 half-moves
16 Ka5 loss in 2 half-moves
17 Kb5 loss in 2 half-moves
18 Kc5 loss in 2 half-moves
19 Rf8 loss in 1 half-moves
20 Rh8 loss in 1 half-moves