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

EGTB: win in 2 half-moves

# move score
1 Rf3 win in 1 half-moves
2 Rf4 win in 1 half-moves
3 Ka2 draw
4 Kb1 loss in 2 half-moves
5 Kb2 loss in 2 half-moves
6 Ke4 loss in 1 half-moves
7 Ke5 loss in 1 half-moves
8 Ke6 loss in 1 half-moves
9 Kf4 loss in 1 half-moves
10 Kf6 loss in 1 half-moves
11 Kg4 loss in 1 half-moves
12 Kg5 loss in 1 half-moves
13 Kg6 loss in 1 half-moves
14 Rb1 loss in 1 half-moves
15 Rc1 loss in 1 half-moves
16 Rd1 loss in 1 half-moves
17 Re1 loss in 1 half-moves
18 Rf2 loss in 1 half-moves
19 Rg1 loss in 1 half-moves
20 Rh1 loss in 1 half-moves