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 Ka7 draw
3 Ra5 draw
4 Rb1 draw
5 Rb6 draw
6 Re5 draw
7 Rf5 draw
8 Kb7 loss in 2 half-moves
9 Kb8 loss in 2 half-moves
10 Rb2 loss in 2 half-moves
11 Rb3 loss in 2 half-moves
12 Rb7 loss in 2 half-moves
13 Rb8 loss in 2 half-moves
14 Rc5 loss in 2 half-moves
15 Rd5 loss in 2 half-moves
16 Rg5 loss in 2 half-moves
17 Rh5 loss in 2 half-moves