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