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

EGTB: win in 4 half-moves

# move score
1 Ra4 win in 3 half-moves
2 Rc4 win in 5 half-moves
3 Rh8 win in 5 half-moves
4 Kaa6 draw
5 Kaa8 draw
6 Kab6 draw
7 Kab8 draw
8 Kba6 draw
9 Kba8 draw
10 Kbb6 draw
11 Kbb8 draw
12 Rb4 draw
13 Rd4 draw
14 Rh1 draw
15 Rh2 draw
16 Rh3 draw
17 Kc6 loss in 2 half-moves
18 Kc7 loss in 2 half-moves
19 Kc8 loss in 2 half-moves
20 Re4 loss in 2 half-moves
21 Rf4 loss in 2 half-moves
22 Rg4 loss in 2 half-moves
23 Rh5 loss in 2 half-moves
24 Rh6 loss in 2 half-moves
25 Rh7 loss in 2 half-moves