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

EGTB: win in 4 half-moves

# move score
1 Rb1 win in 3 half-moves
2 Rf1 win in 5 half-moves
3 Ra1 draw
4 Ra4 draw
5 Rb4 draw
6 Rf4 draw
7 Rgh1 draw
8 Rh2 draw
9 Rh3 draw
10 Rhh1 draw
11 Rc1 loss in 2 half-moves
12 Rc4 loss in 2 half-moves
13 Rd1 loss in 2 half-moves
14 Rd4 loss in 2 half-moves
15 Re1 loss in 2 half-moves
16 Re4 loss in 2 half-moves
17 Rg4 loss in 2 half-moves
18 Rh5 loss in 2 half-moves
19 Rh6 loss in 2 half-moves
20 Rh7 loss in 2 half-moves
21 Rh8 loss in 2 half-moves