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 Rb8 win in 1 half-moves
3 R6h7 loss in 2 half-moves
4 R8h7 loss in 2 half-moves
5 Ra6 loss in 2 half-moves
6 Ra8 loss in 2 half-moves
7 Rc6 loss in 2 half-moves
8 Rc8 loss in 2 half-moves
9 Rd6 loss in 2 half-moves
10 Rd8 loss in 2 half-moves
11 Re6 loss in 2 half-moves
12 Re8 loss in 2 half-moves
13 Rf6 loss in 2 half-moves
14 Rf8 loss in 2 half-moves
15 Rg6 loss in 2 half-moves
16 Rg8 loss in 2 half-moves
17 Rh1 loss in 2 half-moves
18 Rh3 loss in 2 half-moves
19 Rh5 loss in 2 half-moves
20 Rh2 loss in 1 half-moves
21 Rh4 loss in 1 half-moves