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

EGTB: win in 4 half-moves

# move score
1 Rg8 win in 3 half-moves
2 Ra8 win in 7 half-moves
3 Rb8 win in 7 half-moves
4 Rc8 win in 7 half-moves
5 Rd8 win in 7 half-moves
6 Na1 loss in 2 half-moves
7 Na5 loss in 2 half-moves
8 Nc1 loss in 2 half-moves
9 Nc5 loss in 2 half-moves
10 Nd2 loss in 2 half-moves
11 Nd4 loss in 2 half-moves
12 Re8 loss in 2 half-moves
13 Rf1 loss in 2 half-moves
14 Rf2 loss in 2 half-moves
15 Rf3 loss in 2 half-moves
16 Rf5 loss in 2 half-moves
17 Rf6 loss in 2 half-moves
18 Rf7 loss in 2 half-moves
19 Rh8 loss in 2 half-moves
20 Rf4 loss in 1 half-moves