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