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

EGTB: win in 4 half-moves

# move score
1 Rb1 win in 3 half-moves
2 Ra1 draw
3 Rc1 draw
4 Rg3 draw
5 Rg6 draw
6 Rg7 draw
7 Rg8 draw
8 Rh1 draw
9 K6b6 loss in 2 half-moves
10 K6b7 loss in 2 half-moves
11 K6d6 loss in 2 half-moves
12 K6d7 loss in 2 half-moves
13 K7b6 loss in 2 half-moves
14 K7b7 loss in 2 half-moves
15 K7d6 loss in 2 half-moves
16 K7d7 loss in 2 half-moves
17 Kb5 loss in 2 half-moves
18 Kb8 loss in 2 half-moves
19 Kc5 loss in 2 half-moves
20 Kc8 loss in 2 half-moves
21 Kd5 loss in 2 half-moves
22 Kd8 loss in 2 half-moves
23 Rd1 loss in 2 half-moves
24 Re1 loss in 2 half-moves
25 Rf1 loss in 2 half-moves
26 Rg2 loss in 2 half-moves
27 Rg4 loss in 2 half-moves
28 Rg5 loss in 2 half-moves