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

EGTB: win in 4 half-moves

# move score
1 Ra5 win in 3 half-moves
2 K6a7 draw
3 Ra4 draw
4 Rc1 draw
5 Rf1 draw
6 Rg1 draw
7 Rh1 draw
8 Ka5 loss in 2 half-moves
9 Kb5 loss in 2 half-moves
10 Kb6 loss in 2 half-moves
11 Kb8 loss in 2 half-moves
12 Ra2 loss in 2 half-moves
13 Ra3 loss in 2 half-moves
14 Rb1 loss in 2 half-moves
15 Rd1 loss in 2 half-moves
16 Re1 loss in 2 half-moves
17 K6b7 loss in 1 half-moves
18 K8a7 loss in 1 half-moves
19 K8b7 loss in 1 half-moves