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 Kg3 draw
3 Kg4 draw
4 Kg5 draw
5 Rb1 loss in 10 half-moves
6 Re1 loss in 10 half-moves
7 Rh1 loss in 10 half-moves
8 a3 loss in 2 half-moves
9 Kh3 loss in 2 half-moves
10 Kh5 loss in 2 half-moves
11 Ra1 loss in 2 half-moves
12 Rd1 loss in 2 half-moves
13 Rg2 loss in 2 half-moves
14 Rg3 loss in 2 half-moves
15 Rg4 loss in 2 half-moves
16 Rg6 loss in 2 half-moves
17 Rg8 loss in 2 half-moves
18 Rc1 loss in 1 half-moves
19 Rg5 loss in 1 half-moves
20 Rg7 loss in 1 half-moves