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

EGTB: win in 4 half-moves

# move score
1 Kg7 win in 3 half-moves
2 Kg6 draw
3 Kg8 draw
4 Kh6 draw
5 Kh8 draw
6 Rb4 draw
7 Re1 draw
8 Re2 draw
9 Re7 draw
10 Rf4 draw
11 Rg4 draw
12 Rh4 draw
13 Ra4 loss in 2 half-moves
14 Rc4 loss in 2 half-moves
15 Rd4 loss in 2 half-moves
16 Re3 loss in 2 half-moves
17 Re5 loss in 2 half-moves
18 Re6 loss in 2 half-moves
19 Re8 loss in 2 half-moves