Click on the third or sixth rank to set the en passant target square.

EGTB: win in 2 half-moves

# move score
1 Rb3 win in 1 half-moves
2 Rf6 win in 1 half-moves
3 Ra6 draw
4 Ka2 loss in 2 half-moves
5 Ka4 loss in 2 half-moves
6 Ka6 loss in 2 half-moves
7 Kb1 loss in 2 half-moves
8 Kb2 loss in 2 half-moves
9 Kb4 loss in 2 half-moves
10 Kb5 loss in 2 half-moves
11 Rb1 loss in 2 half-moves
12 Rb2 loss in 2 half-moves
13 Rb4 loss in 2 half-moves
14 Rb5 loss in 2 half-moves
15 Rb7 loss in 2 half-moves
16 Rb8 loss in 2 half-moves
17 Rc6 loss in 2 half-moves
18 Rd6 loss in 2 half-moves
19 Re6 loss in 2 half-moves
20 Rg6 loss in 2 half-moves
21 Rh6 loss in 2 half-moves