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

EGTB: win in 4 half-moves

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