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

EGTB: win in 4 half-moves

# move score
1 Re8 win in 3 half-moves
2 Kc6 draw
3 Rc2 draw
4 Kc7 loss in 8 half-moves
5 Rb8 loss in 8 half-moves
6 Ka6 loss in 2 half-moves
7 Ka7 loss in 2 half-moves
8 Ka8 loss in 2 half-moves
9 Kb6 loss in 2 half-moves
10 Kb8 loss in 2 half-moves
11 Ra8 loss in 2 half-moves
12 Rc1 loss in 2 half-moves
13 Rc3 loss in 2 half-moves
14 Rc4 loss in 2 half-moves
15 Rc5 loss in 2 half-moves
16 Rc6 loss in 2 half-moves
17 Rc7 loss in 2 half-moves
18 Rd8 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