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

EGTB: win in 2 half-moves

# move score
1 Rb7 win in 1 half-moves
2 Rc7 win in 1 half-moves
3 Rd7 win in 1 half-moves
4 Rf1 draw
5 Rf2 draw
6 Rf3 draw
7 Ka1 loss in 2 half-moves
8 Ka2 loss in 2 half-moves
9 Kb2 loss in 2 half-moves
10 Kc1 loss in 2 half-moves
11 Kc2 loss in 2 half-moves
12 Ra7 loss in 2 half-moves
13 Re7 loss in 2 half-moves
14 Rf4 loss in 2 half-moves
15 Rf5 loss in 2 half-moves
16 Rf6 loss in 2 half-moves
17 Rf8 loss in 2 half-moves
18 Rg7 loss in 2 half-moves
19 Rh7 loss in 2 half-moves