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 Ra4 draw
3 Ra6 draw
4 Ra7 draw
5 Ra8 draw
6 Rc1 draw
7 Rd1 draw
8 Re1 draw
9 Rh1 draw
10 Kb5 loss in 2 half-moves
11 Kb6 loss in 2 half-moves
12 Kb8 loss in 2 half-moves
13 Kc5 loss in 2 half-moves
14 Kd5 loss in 2 half-moves
15 Kd6 loss in 2 half-moves
16 Kd8 loss in 2 half-moves
17 Ra2 loss in 2 half-moves
18 Ra3 loss in 2 half-moves
19 Rb1 loss in 2 half-moves
20 Rf1 loss in 2 half-moves
21 Rg1 loss in 2 half-moves
22 K6b7 loss in 1 half-moves
23 K6c7 loss in 1 half-moves
24 K6d7 loss in 1 half-moves
25 K8b7 loss in 1 half-moves
26 K8c7 loss in 1 half-moves
27 K8d7 loss in 1 half-moves