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

EGTB: draw

# move score
1 Rg4 draw
2 Rh4 draw
3 Kg7 loss in 4 half-moves
4 Kg8 loss in 4 half-moves
5 Kh7 loss in 4 half-moves
6 Re1 loss in 4 half-moves
7 Re2 loss in 4 half-moves
8 Re5 loss in 4 half-moves
9 Ra4 loss in 2 half-moves
10 Rb4 loss in 2 half-moves
11 Rc4 loss in 2 half-moves
12 Rd4 loss in 2 half-moves
13 Re6 loss in 2 half-moves
14 Re7 loss in 2 half-moves
15 Re8 loss in 2 half-moves
16 Re3 loss in 1 half-moves
17 Rf4 loss in 1 half-moves