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