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 Ka7 draw
3 Ka8 draw
4 Kb7 draw
5 Kc7 draw
6 Kc8 draw
7 Rb4 draw
8 Rb5 draw
9 Rb7 draw
10 Re6 loss in 4 half-moves
11 Rg6 loss in 4 half-moves
12 Rh6 loss in 4 half-moves
13 Ra6 loss in 2 half-moves
14 Rc6 loss in 2 half-moves
15 Rd6 loss in 2 half-moves
16 Rb1 loss in 1 half-moves
17 Rb2 loss in 1 half-moves
18 Rf6 loss in 1 half-moves