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

EGTB: win in 4 half-moves

# move score
1 Rg7 win in 3 half-moves
2 Rh7 win in 3 half-moves
3 Kh3 draw
4 Re6 draw
5 Re8 draw
6 Rf7 draw
7 Kh1 loss in 4 half-moves
8 Kg1 loss in 2 half-moves
9 Kg2 loss in 2 half-moves
10 Kg3 loss in 2 half-moves
11 Ra7 loss in 2 half-moves
12 Rb7 loss in 2 half-moves
13 Rc7 loss in 2 half-moves
14 Rd7 loss in 2 half-moves
15 Re1 loss in 2 half-moves
16 Re2 loss in 2 half-moves
17 Re3 loss in 2 half-moves
18 Re4 loss in 2 half-moves
19 Re5 loss in 2 half-moves