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 Rb6 win in 1 half-moves
3 Rh8 win in 1 half-moves
4 Rf8 loss in 6 half-moves
5 Rg8 loss in 6 half-moves
6 Ka7 loss in 2 half-moves
7 Kb7 loss in 2 half-moves
8 Rb1 loss in 2 half-moves
9 Rb3 loss in 2 half-moves
10 Rb7 loss in 2 half-moves
11 Rc8 loss in 2 half-moves
12 Rd8 loss in 2 half-moves
13 Re8 loss in 2 half-moves
14 Rb4 loss in 1 half-moves
15 Rb5 loss in 1 half-moves