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

EGTB: win in 4 half-moves

# move score
1 Ra7 win in 3 half-moves
2 Kb7 draw
3 Kb8 draw
4 Kcc7 draw
5 Kcd7 draw
6 Kdc7 draw
7 Kdd7 draw
8 Ke8 draw
9 Ra4 draw
10 Ra5 draw
11 Ra6 draw
12 Ra8 draw
13 Rb3 draw
14 Rc3 draw
15 Rd3 draw
16 Re3 draw
17 Rf3 draw
18 Ke7 loss in 2 half-moves
19 Ra1 loss in 2 half-moves
20 Ra2 loss in 2 half-moves
21 Rg3 loss in 2 half-moves
22 Rh3 loss in 2 half-moves