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

EGTB: win in 4 half-moves

# move score
1 Rh1 win in 3 half-moves
2 Rb5 draw
3 Rb7 draw
4 Rb8 draw
5 Rc1 draw
6 Rd1 draw
7 Re1 draw
8 Rf1 draw
9 Rg1 draw
10 Kf2 loss in 2 half-moves
11 Kf3 loss in 2 half-moves
12 Kf4 loss in 2 half-moves
13 Kg2 loss in 2 half-moves
14 Kg4 loss in 2 half-moves
15 Kg6 loss in 2 half-moves
16 Kg7 loss in 2 half-moves
17 Kg8 loss in 2 half-moves
18 Kh2 loss in 2 half-moves
19 Kh3 loss in 2 half-moves
20 Kh4 loss in 2 half-moves
21 Kh6 loss in 2 half-moves
22 Kh8 loss in 2 half-moves
23 Ra1 loss in 2 half-moves
24 Rb2 loss in 2 half-moves
25 Rb3 loss in 2 half-moves
26 Rb4 loss in 2 half-moves
27 Rb6 loss in 2 half-moves