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

EGTB: win in 2 half-moves

# move score
1 Ra4 win in 1 half-moves
2 Rf7 win in 1 half-moves
3 Rd4 draw
4 Kf5 loss in 2 half-moves
5 Kf6 loss in 2 half-moves
6 Kg4 loss in 2 half-moves
7 Kg6 loss in 2 half-moves
8 Kh4 loss in 2 half-moves
9 Kh5 loss in 2 half-moves
10 Kh6 loss in 2 half-moves
11 Re4 loss in 2 half-moves
12 Rf1 loss in 2 half-moves
13 Rf2 loss in 2 half-moves
14 Rf3 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 Rg4 loss in 2 half-moves
19 Rh4 loss in 2 half-moves
20 Rb4 loss in 1 half-moves
21 Rc4 loss in 1 half-moves