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

EGTB: win in 4 half-moves

# move score
1 Rb8 win in 3 half-moves
2 Rb6 win in 5 half-moves
3 Ra4 draw
4 Rb1 draw
5 Rb5 draw
6 Rb7 draw
7 Rd4 draw
8 Re4 draw
9 Rf4 draw
10 K7f7 loss in 2 half-moves
11 K7f8 loss in 2 half-moves
12 K7h7 loss in 2 half-moves
13 K7h8 loss in 2 half-moves
14 K8f7 loss in 2 half-moves
15 K8f8 loss in 2 half-moves
16 K8h7 loss in 2 half-moves
17 K8h8 loss in 2 half-moves
18 Kf6 loss in 2 half-moves
19 Kg6 loss in 2 half-moves
20 Kh6 loss in 2 half-moves
21 Rb2 loss in 2 half-moves
22 Rb3 loss in 2 half-moves
23 Rc4 loss in 2 half-moves
24 Rg4 loss in 2 half-moves
25 Rh4 loss in 2 half-moves