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 K6b7 draw
3 K6c7 draw
4 K6d7 draw
5 K8b7 draw
6 K8c7 draw
7 K8d7 draw
8 Kb5 draw
9 Kb6 draw
10 Kb8 draw
11 Kd6 draw
12 Kd8 draw
13 Ra4 draw
14 Ra6 draw
15 Ra7 draw
16 Ra8 draw
17 Rb3 draw
18 Rc3 draw
19 Rg3 draw
20 Rh3 draw
21 Kc5 loss in 2 half-moves
22 Kd5 loss in 2 half-moves
23 Ra1 loss in 2 half-moves
24 Ra2 loss in 2 half-moves
25 Rd3 loss in 2 half-moves
26 Re3 loss in 2 half-moves
27 Rf3 loss in 2 half-moves