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

EGTB: win in 2 half-moves

# move score
1 Ra1 win in 1 half-moves
2 Kb6 draw
3 Kc6 draw
4 Kc7 draw
5 Ra5 draw
6 Ra7 draw
7 Rb8 draw
8 Re8 draw
9 Rf8 draw
10 Rg8 draw
11 Rh8 draw
12 Ra6 loss in 20 half-moves
13 Kb8 loss in 12 half-moves
14 Kc8 loss in 12 half-moves
15 Ka7 loss in 10 half-moves
16 Ka6 loss in 4 half-moves
17 Ra2 loss in 2 half-moves
18 Ra3 loss in 2 half-moves
19 Ra4 loss in 2 half-moves
20 Rc8 loss in 2 half-moves
21 Rd8 loss in 2 half-moves