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 K5b6 draw
3 K7b6 draw
4 Rb1 draw
5 Rb2 draw
6 Rb5 draw
7 Rb6 draw
8 Rb7 draw
9 Re3 draw
10 Rf3 draw
11 Rg3 draw
12 Rh3 draw
13 Kb4 loss in 2 half-moves
14 Kb5 loss in 2 half-moves
15 Kb7 loss in 2 half-moves
16 Kb8 loss in 2 half-moves
17 Kc4 loss in 2 half-moves
18 Kc8 loss in 2 half-moves
19 Kd4 loss in 2 half-moves
20 Kd5 loss in 2 half-moves
21 Kd7 loss in 2 half-moves
22 Kd8 loss in 2 half-moves
23 Ra3 loss in 2 half-moves
24 Rb4 loss in 2 half-moves
25 Rc3 loss in 2 half-moves
26 Rd3 loss in 2 half-moves
27 K5c6 loss in 1 half-moves
28 K5d6 loss in 1 half-moves
29 K7c6 loss in 1 half-moves
30 K7d6 loss in 1 half-moves