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

EGTB: win in 4 half-moves

# move score
1 Ra6 win in 3 half-moves
2 Kaa6 draw
3 Kba6 draw
4 Kbb6 draw
5 Kc5 draw
6 Kc6 draw
7 Ra7 draw
8 Rb8 draw
9 Rf8 draw
10 Kaa4 loss in 2 half-moves
11 Kab4 loss in 2 half-moves
12 Kab6 loss in 2 half-moves
13 Kba4 loss in 2 half-moves
14 Kbb4 loss in 2 half-moves
15 Kc4 loss in 2 half-moves
16 Rc8 loss in 2 half-moves
17 Rd8 loss in 2 half-moves
18 Re8 loss in 2 half-moves
19 Rg8 loss in 2 half-moves
20 Rh8 loss in 2 half-moves