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 Kf4 draw
3 Kf5 draw
4 Kf6 draw
5 Kh4 draw
6 Kh5 draw
7 Re4 draw
8 Rf4 draw
9 Rg3 draw
10 Rh4 draw
11 Kg6 loss in 12 half-moves
12 Kh6 loss in 8 half-moves
13 Rb4 loss in 2 half-moves
14 Rc4 loss in 2 half-moves
15 Rd4 loss in 2 half-moves
16 Rg1 loss in 2 half-moves
17 Rg2 loss in 2 half-moves