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

EGTB: win in 2 half-moves

# move score
1 Rf1 win in 1 half-moves
2 Ra4 loss in 2 half-moves
3 Rb4 loss in 2 half-moves
4 Rf5 loss in 2 half-moves
5 Rf6 loss in 2 half-moves
6 Rf7 loss in 2 half-moves
7 Rf8 loss in 2 half-moves
8 Kf7 loss in 1 half-moves
9 Kf8 loss in 1 half-moves
10 Kg7 loss in 1 half-moves
11 Kh7 loss in 1 half-moves
12 Kh8 loss in 1 half-moves
13 Rc4 loss in 1 half-moves
14 Rd4 loss in 1 half-moves
15 Re4 loss in 1 half-moves
16 Rf2 loss in 1 half-moves
17 Rf3 loss in 1 half-moves
18 Rg4 loss in 1 half-moves
19 Rh4 loss in 1 half-moves