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

EGTB: win in 2 half-moves

# move score
1 Rb4 win in 1 half-moves
2 Kf6 loss in 22 half-moves
3 Kf5 loss in 10 half-moves
4 Rh4 loss in 10 half-moves
5 Kh4 loss in 6 half-moves
6 Kh5 loss in 6 half-moves
7 Rf4 loss in 6 half-moves
8 Kg6 loss in 4 half-moves
9 Kh6 loss in 4 half-moves
10 Kf4 loss in 2 half-moves
11 Ra4 loss in 2 half-moves
12 Rc4 loss in 2 half-moves
13 Rd4 loss in 2 half-moves
14 Re4 loss in 2 half-moves
15 Rg1 loss in 2 half-moves
16 Rg2 loss in 2 half-moves
17 Rg3 loss in 2 half-moves