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

EGTB: win in 4 half-moves

# move score
1 Rb2 win in 3 half-moves
2 K3b4 draw
3 K5b4 draw
4 Rb1 draw
5 Rb3 draw
6 Rb4 draw
7 Rb5 draw
8 Rb8 draw
9 Re7 draw
10 Rf7 draw
11 Rg7 draw
12 Rh7 draw
13 Kb2 loss in 2 half-moves
14 Kb3 loss in 2 half-moves
15 Kb5 loss in 2 half-moves
16 Kb6 loss in 2 half-moves
17 Kc2 loss in 2 half-moves
18 Kc6 loss in 2 half-moves
19 Kd2 loss in 2 half-moves
20 Kd3 loss in 2 half-moves
21 Kd5 loss in 2 half-moves
22 Kd6 loss in 2 half-moves
23 Ra7 loss in 2 half-moves
24 Rb6 loss in 2 half-moves
25 Rc7 loss in 2 half-moves
26 Rd7 loss in 2 half-moves
27 K3c4 loss in 1 half-moves
28 K3d4 loss in 1 half-moves
29 K5c4 loss in 1 half-moves
30 K5d4 loss in 1 half-moves