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

EGTB: win in 4 half-moves

# move score
1 Kh3 win in 3 half-moves
2 Rg1 win in 3 half-moves
3 Rg2 win in 3 half-moves
4 Rg3 win in 3 half-moves
5 Kg1 win in 5 half-moves
6 Kg2 win in 5 half-moves
7 Kh1 draw
8 Rc4 draw
9 Rg5 draw
10 Kg3 loss in 2 half-moves
11 Ra4 loss in 2 half-moves
12 Rb4 loss in 2 half-moves
13 Rd4 loss in 2 half-moves
14 Re4 loss in 2 half-moves
15 Rf4 loss in 2 half-moves
16 Rg7 loss in 2 half-moves
17 Rg8 loss in 2 half-moves
18 Rh4 loss in 2 half-moves
19 Rg6 loss in 1 half-moves