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 Kb2 loss in 12 half-moves
3 Kc2 loss in 12 half-moves
4 Kc3 loss in 12 half-moves
5 Kc4 loss in 12 half-moves
6 Rb7 loss in 12 half-moves
7 Ra8 loss in 8 half-moves
8 Rc8 loss in 8 half-moves
9 Ka2 loss in 6 half-moves
10 Ka3 loss in 6 half-moves
11 Ka4 loss in 6 half-moves
12 Kb4 loss in 6 half-moves
13 Rd8 loss in 4 half-moves
14 Rb4 loss in 2 half-moves
15 Rb5 loss in 2 half-moves
16 Re8 loss in 2 half-moves
17 Rf8 loss in 2 half-moves
18 Rg8 loss in 2 half-moves
19 Rh8 loss in 1 half-moves