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

EGTB: win in 2 half-moves

# move score
1 Rb6 win in 1 half-moves
2 Rb3 draw
3 Rb4 draw
4 Rb5 draw
5 Rb7 draw
6 Rb8 draw
7 Rc2 draw
8 Rd2 draw
9 Re2 draw
10 Rg2 draw
11 Ka7 loss in 2 half-moves
12 Kb7 loss in 2 half-moves
13 Kb8 loss in 2 half-moves
14 Ra2 loss in 2 half-moves
15 Rb1 loss in 2 half-moves
16 Rf2 loss in 2 half-moves
17 Rh2 loss in 2 half-moves