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

EGTB: win in 2 half-moves

# move score
1 Rb8 win in 1 half-moves
2 Kc7 draw
3 Kc8 draw
4 Kd8 draw
5 Ra8 draw
6 Re4 draw
7 Re5 draw
8 Re7 draw
9 Kc6 loss in 2 half-moves
10 Kd6 loss in 2 half-moves
11 Ke6 loss in 2 half-moves
12 Ke7 loss in 2 half-moves
13 Rc8 loss in 2 half-moves
14 Rd8 loss in 2 half-moves
15 Re1 loss in 2 half-moves
16 Re2 loss in 2 half-moves
17 Re3 loss in 2 half-moves
18 Re6 loss in 2 half-moves
19 Rf8 loss in 2 half-moves
20 Rg8 loss in 2 half-moves
21 Rh8 loss in 2 half-moves