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 Kf5 draw
3 Kf6 draw
4 Kg4 draw
5 Kh4 draw
6 Kh5 draw
7 Re4 draw
8 Rg4 draw
9 Rh4 draw
10 Kg6 loss in 10 half-moves
11 Rf3 loss in 6 half-moves
12 Kh6 loss in 4 half-moves
13 Rf8 loss in 4 half-moves
14 Rb4 loss in 2 half-moves
15 Rc4 loss in 2 half-moves
16 Rd4 loss in 2 half-moves
17 Rf1 loss in 2 half-moves
18 Rf2 loss in 2 half-moves
19 Rf5 loss in 2 half-moves
20 Rf6 loss in 2 half-moves
21 Rf7 loss in 2 half-moves