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

EGTB: win in 4 half-moves

# move score
1 Rh3 win in 3 half-moves
2 g7 draw
3 Ra3 draw
4 Rd3 draw
5 Re4 draw
6 Re6 draw
7 Re8 draw
8 Rf3 draw
9 Rb3 loss in 2 half-moves
10 Rc3 loss in 2 half-moves
11 Re1 loss in 2 half-moves
12 Re2 loss in 2 half-moves
13 Re5 loss in 2 half-moves
14 Re7 loss in 2 half-moves
15 Rg3 loss in 2 half-moves