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

EGTB: draw

# move score
1 Rb7 draw
2 Rc7 draw
3 Rd7 draw
4 Rf7 draw
5 Rg3 draw
6 Rg4 draw
7 Rg8 draw
8 Ka2 loss in 2 half-moves
9 Kb1 loss in 2 half-moves
10 Kb2 loss in 2 half-moves
11 Ra7 loss in 2 half-moves
12 Re7 loss in 2 half-moves
13 Rg1 loss in 2 half-moves
14 Rg2 loss in 2 half-moves
15 Rg5 loss in 2 half-moves
16 Rg6 loss in 2 half-moves
17 Rh7 loss in 2 half-moves