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 Kb7 draw
3 Kb8 draw
4 Kc6 draw
5 Kcc7 draw
6 Kcd8 draw
7 Kd6 draw
8 Kdc7 draw
9 Kdd8 draw
10 Ke6 draw
11 Ke7 draw
12 Ke8 draw
13 Ra3 draw
14 Ra5 draw
15 Ra7 draw
16 Ra8 draw
17 Rh4 draw
18 Ra1 loss in 2 half-moves
19 Ra2 loss in 2 half-moves
20 Rb4 loss in 2 half-moves
21 Rc4 loss in 2 half-moves
22 Rd4 loss in 2 half-moves
23 Re4 loss in 2 half-moves
24 Rf4 loss in 2 half-moves
25 Rg4 loss in 2 half-moves