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 Ka4 draw
3 Kb3 draw
4 Kd1 draw
5 Kd2 draw
6 Kd3 draw
7 Ke1 draw
8 Kf1 draw
9 Kf2 draw
10 Ra7 draw
11 Rb4 draw
12 Rb8 draw
13 Ka2 loss in 2 half-moves
14 Kb2 loss in 2 half-moves
15 Ke3 loss in 2 half-moves
16 Kf3 loss in 2 half-moves
17 Rb1 loss in 2 half-moves
18 Rb3 loss in 2 half-moves
19 Rb5 loss in 2 half-moves
20 Rb6 loss in 2 half-moves
21 Rc7 loss in 2 half-moves
22 Rd7 loss in 2 half-moves
23 Re7 loss in 2 half-moves
24 Rf7 loss in 2 half-moves
25 Rg7 loss in 2 half-moves
26 Rh7 loss in 2 half-moves
27 Kb4 loss in 1 half-moves