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

EGTB: win in 2 half-moves

# move score
1 Rb4 win in 1 half-moves
2 Rb8 win in 1 half-moves
3 Kb6 draw
4 Ra7 draw
5 Rb2 draw
6 Rb3 draw
7 Rc7 draw
8 Rd7 draw
9 Re7 draw
10 Rf7 draw
11 Rg7 draw
12 Rh7 draw
13 Ka5 loss in 2 half-moves
14 Ka7 loss in 2 half-moves
15 Kb5 loss in 2 half-moves
16 Rb1 loss in 2 half-moves
17 Rb5 loss in 2 half-moves
18 Rb6 loss in 2 half-moves