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

EGTB: win in 54 half-moves

# move score
1 Ra4 win in 53 half-moves
2 Rb4 win in 55 half-moves
3 Rc4 win in 57 half-moves
4 Rd4 win in 59 half-moves
5 Re4 draw
6 Rh5 draw
7 Rh6 draw
8 Rh7 draw
9 Kaa7 loss in 2 half-moves
10 Kab7 loss in 2 half-moves
11 Kba7 loss in 2 half-moves
12 Kbb7 loss in 2 half-moves
13 Kc7 loss in 2 half-moves
14 Kc8 loss in 2 half-moves
15 Rf4 loss in 2 half-moves
16 Rg4 loss in 2 half-moves
17 Rh1 loss in 2 half-moves
18 Rh2 loss in 2 half-moves
19 Rh3 loss in 2 half-moves
20 Rh8 loss in 2 half-moves