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

EGTB: win in 2 half-moves

# move score
1 Kb5 win in 1 half-moves
2 Rg8 win in 1 half-moves
3 Kb7 draw
4 Ra7 draw
5 Ka7 loss in 10 half-moves
6 Ka5 loss in 6 half-moves
7 Rh8 loss in 6 half-moves
8 Kb6 loss in 2 half-moves
9 Rb8 loss in 2 half-moves
10 Rc8 loss in 2 half-moves
11 Rd8 loss in 2 half-moves
12 Re8 loss in 2 half-moves
13 Rf8 loss in 2 half-moves