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 Kb6 win in 1 half-moves
3 Rc7 win in 1 half-moves
4 Rd7 win in 1 half-moves
5 Rb7 draw
6 Ka5 loss in 2 half-moves
7 Ra8 loss in 2 half-moves
8 Re7 loss in 2 half-moves
9 Rf7 loss in 2 half-moves
10 Rg7 loss in 2 half-moves
11 Rh7 loss in 2 half-moves
12 Kb7 loss in 1 half-moves