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

EGTB: win in 6 half-moves

# move score
1 Rb7 win in 5 half-moves
2 Rb8 win in 5 half-moves
3 Rf1 draw
4 K7b7 loss in 2 half-moves
5 K7b8 loss in 2 half-moves
6 K7d7 loss in 2 half-moves
7 K7d8 loss in 2 half-moves
8 K8b7 loss in 2 half-moves
9 K8b8 loss in 2 half-moves
10 K8d7 loss in 2 half-moves
11 K8d8 loss in 2 half-moves
12 Kb6 loss in 2 half-moves
13 Kc6 loss in 2 half-moves
14 Kd6 loss in 2 half-moves
15 Ra1 loss in 2 half-moves
16 Rb2 loss in 2 half-moves
17 Rb3 loss in 2 half-moves
18 Rb4 loss in 2 half-moves
19 Rb5 loss in 2 half-moves
20 Rb6 loss in 2 half-moves
21 Rc1 loss in 2 half-moves
22 Rd1 loss in 2 half-moves
23 Re1 loss in 2 half-moves
24 Rg1 loss in 2 half-moves
25 Rh1 loss in 2 half-moves