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

EGTB: win in 2 half-moves

# move score
1 Rb7 win in 1 half-moves
2 Kb5 draw
3 Rc7 draw
4 Rd7 draw
5 Re7 draw
6 Rf7 draw
7 Rg7 draw
8 Rh7 draw
9 Kb7 loss in 2 half-moves
10 Ka2 loss in 1 half-moves
11 Ka5 loss in 1 half-moves
12 Kb1 loss in 1 half-moves
13 Kb2 loss in 1 half-moves
14 Kb6 loss in 1 half-moves
15 Ra8 loss in 1 half-moves