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 Ka7 draw
3 Kb7 draw
4 Kb8 draw
5 Rb8 draw
6 Rc7 draw
7 Rd8 draw
8 Rf8 draw
9 Rh8 draw
10 Rc2 loss in 4 half-moves
11 Rc3 loss in 4 half-moves
12 Rc5 loss in 4 half-moves
13 Rc6 loss in 4 half-moves
14 Rc1 loss in 2 half-moves
15 Rc4 loss in 2 half-moves
16 Re8 loss in 2 half-moves