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

EGTB: win in 2 half-moves

# move score
1 Rf6 win in 1 half-moves
2 Rf8 win in 1 half-moves
3 Rc4 draw
4 Kb7 loss in 2 half-moves
5 Kb8 loss in 2 half-moves
6 Kc7 loss in 2 half-moves
7 Kd7 loss in 2 half-moves
8 Kd8 loss in 2 half-moves
9 Ra4 loss in 2 half-moves
10 Rb4 loss in 2 half-moves
11 Rf1 loss in 2 half-moves
12 Rf2 loss in 2 half-moves
13 Rf3 loss in 2 half-moves
14 Rf5 loss in 2 half-moves
15 Rg4 loss in 2 half-moves
16 Rd4 loss in 1 half-moves
17 Re4 loss in 1 half-moves
18 Rf7 loss in 1 half-moves
19 Rh4 loss in 1 half-moves