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

EGTB: win in 4 half-moves

# move score
1 Kb7 win in 3 half-moves
2 Ra7 win in 3 half-moves
3 Ra5 draw
4 Kc7 loss in 8 half-moves
5 Ka7 loss in 6 half-moves
6 Ra6 loss in 6 half-moves
7 Rf8 loss in 6 half-moves
8 Ka5 loss in 4 half-moves
9 Ka6 loss in 4 half-moves
10 Kc6 loss in 4 half-moves
11 Rb8 loss in 4 half-moves
12 Kb5 loss in 2 half-moves
13 Kc5 loss in 2 half-moves
14 Ra1 loss in 2 half-moves
15 Ra2 loss in 2 half-moves
16 Ra3 loss in 2 half-moves
17 Ra4 loss in 2 half-moves
18 Rc8 loss in 2 half-moves
19 Rd8 loss in 2 half-moves
20 Re8 loss in 2 half-moves
21 Rh8 loss in 2 half-moves
22 Rg8 loss in 1 half-moves