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 Ka6 draw
3 Kb5 draw
4 Kb6 draw
5 Rc4 draw
6 Rd4 draw
7 Re3 draw
8 Re5 draw
9 Re6 draw
10 Re7 draw
11 Re8 draw
12 Rh4 draw
13 Ka4 loss in 2 half-moves
14 Kb4 loss in 2 half-moves
15 Ra4 loss in 2 half-moves
16 Rb4 loss in 2 half-moves
17 Re1 loss in 2 half-moves
18 Re2 loss in 2 half-moves
19 Rf4 loss in 2 half-moves