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

EGTB: win in 4 half-moves

# move score
1 Ra1 win in 3 half-moves
2 Rc1 win in 3 half-moves
3 Rge1 win in 3 half-moves
4 Ra8 draw
5 Rc8 draw
6 Re2 draw
7 Re3 draw
8 Re4 draw
9 Ree1 draw
10 Rf1 draw
11 Rf8 draw
12 Rb1 loss in 2 half-moves
13 Rb8 loss in 2 half-moves
14 Rd1 loss in 2 half-moves
15 Rd8 loss in 2 half-moves
16 Re5 loss in 2 half-moves
17 Re6 loss in 2 half-moves
18 Re7 loss in 2 half-moves
19 Rg8 loss in 2 half-moves
20 Rh1 loss in 2 half-moves
21 Rh8 loss in 2 half-moves