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

EGTB: win in 2 half-moves

# move score
1 Kb6 win in 1 half-moves
2 Rc8 win in 1 half-moves
3 Rb8 draw
4 Kb7 loss in 2 half-moves
5 Kb8 loss in 2 half-moves
6 Rd8 loss in 2 half-moves
7 Re8 loss in 2 half-moves
8 Rf8 loss in 2 half-moves
9 Rg8 loss in 2 half-moves
10 Rh8 loss in 2 half-moves
11 Ka6 loss in 1 half-moves