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

EGTB: win in 2 half-moves

# move score
1 Rb8 win in 1 half-moves
2 K6g6 draw
3 K6g7 draw
4 K7g6 draw
5 K7g7 draw
6 Kg8 draw
7 Kh5 draw
8 Ra8 draw
9 Rf8 draw
10 Rg8 draw
11 Kg5 loss in 2 half-moves
12 Rc8 loss in 2 half-moves
13 Rd8 loss in 2 half-moves
14 Re8 loss in 2 half-moves