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

EGTB: win in 4 half-moves

# move score
1 Ra1 win in 3 half-moves
2 Rc1 draw
3 Rf4 draw
4 Rf5 draw
5 Rf6 draw
6 Rf7 draw
7 Rg1 draw
8 Rh1 draw
9 K7b7 loss in 2 half-moves
10 K7b8 loss in 2 half-moves
11 K8b7 loss in 2 half-moves
12 K8b8 loss in 2 half-moves
13 Ka6 loss in 2 half-moves
14 Kb6 loss in 2 half-moves
15 Rb1 loss in 2 half-moves
16 Rd1 loss in 2 half-moves
17 Re1 loss in 2 half-moves
18 Rf2 loss in 2 half-moves
19 Rf3 loss in 2 half-moves
20 Rf8 loss in 2 half-moves