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

EGTB: win in 4 half-moves

# move score
1 Ra3 win in 3 half-moves
2 Ra4 draw
3 Ra5 draw
4 Rd8 draw
5 Re8 draw
6 Rf8 draw
7 Rh8 draw
8 K1b1 loss in 2 half-moves
9 K1b2 loss in 2 half-moves
10 K2b1 loss in 2 half-moves
11 K2b2 loss in 2 half-moves
12 Ka3 loss in 2 half-moves
13 Kb3 loss in 2 half-moves
14 Ra6 loss in 2 half-moves
15 Ra7 loss in 2 half-moves
16 Rb8 loss in 2 half-moves
17 Rc8 loss in 2 half-moves
18 Rg8 loss in 2 half-moves