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

EGTB: win in 2 half-moves

# move score
1 Kb4 win in 1 half-moves
2 Ra8 draw
3 Rc7 draw
4 Rd7 draw
5 Rh7 draw
6 Ka6 loss in 6 half-moves
7 Kb5 loss in 2 half-moves
8 Kb6 loss in 2 half-moves
9 Ra6 loss in 2 half-moves
10 Rb7 loss in 2 half-moves
11 Re7 loss in 2 half-moves
12 Rf7 loss in 2 half-moves
13 Rg7 loss in 2 half-moves
14 Ka4 loss in 1 half-moves