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

EGTB: win in 4 half-moves

# move score
1 Rc8 win in 3 half-moves
2 Rd8 win in 3 half-moves
3 Re8 win in 3 half-moves
4 Ra2 win in 5 half-moves
5 Ra1 win in 7 half-moves
6 Kc1 draw
7 Kc2 draw
8 Kdd2 draw
9 Ked2 draw
10 Kf1 draw
11 Ra6 draw
12 Ra7 draw
13 Rb8 draw
14 Kde2 loss in 2 half-moves
15 Kee2 loss in 2 half-moves
16 Kf2 loss in 2 half-moves
17 Ra3 loss in 2 half-moves
18 Ra4 loss in 2 half-moves
19 Ra5 loss in 2 half-moves
20 Rf8 loss in 2 half-moves
21 Rg8 loss in 2 half-moves
22 Rh8 loss in 2 half-moves