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 Rc8 win in 1 half-moves
3 Rd8 draw
4 Re8 draw
5 Ka7 loss in 2 half-moves
6 Kb7 loss in 2 half-moves
7 Rb1 loss in 2 half-moves
8 Rb2 loss in 2 half-moves
9 Rb3 loss in 2 half-moves
10 Rb4 loss in 2 half-moves
11 Rb5 loss in 2 half-moves
12 Rb7 loss in 2 half-moves
13 Rf8 loss in 2 half-moves
14 Rg8 loss in 2 half-moves
15 Rh8 loss in 2 half-moves