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

EGTB: draw

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