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 Kb5 draw
3 Kb6 draw
4 Rc5 draw
5 Kb4 loss in 12 half-moves
6 Ra4 loss in 8 half-moves
7 Ka4 loss in 6 half-moves
8 Ka6 loss in 6 half-moves
9 Rb4 loss in 6 half-moves
10 Rc6 loss in 4 half-moves
11 Rc1 loss in 2 half-moves
12 Rc2 loss in 2 half-moves
13 Rc3 loss in 2 half-moves
14 Rc7 loss in 2 half-moves
15 Rc8 loss in 2 half-moves
16 Rd4 loss in 2 half-moves
17 Re4 loss in 2 half-moves
18 Rf4 loss in 2 half-moves
19 Rh4 loss in 2 half-moves