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

EGTB: win in 2 half-moves

# move score
1 Rg6 win in 1 half-moves
2 K6a7 draw
3 K6b7 draw
4 K8a7 draw
5 Kb6 draw
6 Kb8 draw
7 Rd1 draw
8 Rd7 draw
9 Rd8 draw
10 Re6 draw
11 Rf6 draw
12 Rh6 draw
13 K8b7 loss in 2 half-moves
14 Ka5 loss in 2 half-moves
15 Kb5 loss in 2 half-moves
16 Rb6 loss in 2 half-moves
17 Rc6 loss in 2 half-moves
18 Rd2 loss in 2 half-moves
19 Rd3 loss in 2 half-moves
20 Rd4 loss in 2 half-moves
21 Rd5 loss in 2 half-moves