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

EGTB: win in 4 half-moves

# move score
1 Ra2 win in 3 half-moves
2 Ra1 draw
3 Ra3 draw
4 Ra4 draw
5 Ra8 draw
6 Rd7 draw
7 Re7 draw
8 Rf7 draw
9 Rg7 draw
10 Kc1 loss in 2 half-moves
11 Kc2 loss in 2 half-moves
12 Kdd2 loss in 2 half-moves
13 Kde2 loss in 2 half-moves
14 Ked2 loss in 2 half-moves
15 Kee2 loss in 2 half-moves
16 Kf1 loss in 2 half-moves
17 Kf2 loss in 2 half-moves
18 Ra5 loss in 2 half-moves
19 Ra6 loss in 2 half-moves
20 Rb7 loss in 2 half-moves
21 Rc7 loss in 2 half-moves
22 Rh7 loss in 2 half-moves