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

EGTB: win in 2 half-moves

# move score
1 Rg4 win in 1 half-moves
2 Kb2 loss in 8 half-moves
3 Kb3 loss in 8 half-moves
4 Kb4 loss in 6 half-moves
5 Ka2 loss in 4 half-moves
6 Ra5 loss in 4 half-moves
7 Rb4 loss in 4 half-moves
8 Rc4 loss in 4 half-moves
9 Ra6 loss in 2 half-moves
10 Ra7 loss in 2 half-moves
11 Ra8 loss in 2 half-moves
12 Rd4 loss in 2 half-moves
13 Re4 loss in 2 half-moves
14 Rf4 loss in 2 half-moves
15 Rh4 loss in 2 half-moves