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