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