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

EGTB: win in 2 half-moves

# move score
1 Rb2 win in 1 half-moves
2 Rb3 draw
3 Rb4 draw
4 Rb5 draw
5 Rb8 draw
6 Rc7 draw
7 Rd7 draw
8 Re7 draw
9 Rf7 draw
10 Rg7 draw
11 Rh7 draw
12 Ka7 loss in 2 half-moves
13 Kb8 loss in 2 half-moves
14 Ra7 loss in 2 half-moves
15 Rb1 loss in 2 half-moves
16 Rb6 loss in 2 half-moves