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 Ka6 draw
4 Kb4 draw
5 Kb5 draw
6 Kb6 draw
7 Kd1 draw
8 Kd2 draw
9 Ke1 draw
10 Kf1 draw
11 Kf2 draw
12 Ra8 draw
13 Rb4 draw
14 Rc8 draw
15 Rd8 draw
16 Re8 draw
17 Kd3 loss in 2 half-moves
18 Ke3 loss in 2 half-moves
19 Kf3 loss in 2 half-moves
20 Rb1 loss in 2 half-moves
21 Rb3 loss in 2 half-moves
22 Rb5 loss in 2 half-moves
23 Rb6 loss in 2 half-moves
24 Rb7 loss in 2 half-moves
25 Rf8 loss in 2 half-moves
26 Rg8 loss in 2 half-moves
27 Rh8 loss in 2 half-moves