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

EGTB: win in 2 half-moves

# move score
1 Rb5 win in 1 half-moves
2 Rb1 draw
3 Rb2 draw
4 Rb3 draw
5 Rb4 draw
6 Rd6 draw
7 Rf6 draw
8 Rg6 draw
9 Rh6 draw
10 Ka1 loss in 2 half-moves
11 Ka3 loss in 2 half-moves
12 Kb1 loss in 2 half-moves
13 Kb2 loss in 2 half-moves
14 Kb3 loss in 2 half-moves
15 Ra6 loss in 2 half-moves
16 Rb7 loss in 2 half-moves
17 Rb8 loss in 2 half-moves
18 Rc6 loss in 2 half-moves
19 Re6 loss in 2 half-moves