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

EGTB: win in 2 half-moves

# move score
1 Re4 win in 1 half-moves
2 Kf5 draw
3 Kf6 draw
4 Kg5 draw
5 Kh5 draw
6 Rf4 draw
7 Rg2 draw
8 Rh4 draw
9 Kf7 loss in 8 half-moves
10 Kg7 loss in 4 half-moves
11 Kh6 loss in 4 half-moves
12 Kh7 loss in 4 half-moves
13 Rg1 loss in 4 half-moves
14 Rg5 loss in 4 half-moves
15 Ra4 loss in 2 half-moves
16 Rb4 loss in 2 half-moves
17 Rg3 loss in 2 half-moves
18 Rc4 loss in 1 half-moves
19 Rd4 loss in 1 half-moves