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

EGTB: win in 2 half-moves

# move score
1 Rb8 win in 1 half-moves
2 Ka2 draw
3 Ka4 draw
4 Kb2 draw
5 Kd2 draw
6 Kd3 draw
7 Ke2 draw
8 Kf2 draw
9 Kf3 draw
10 Rb1 draw
11 Rb2 draw
12 Kb4 loss in 2 half-moves
13 Kd4 loss in 2 half-moves
14 Ke4 loss in 2 half-moves
15 Kf4 loss in 2 half-moves
16 Rb4 loss in 2 half-moves
17 Rb5 loss in 2 half-moves
18 Rb6 loss in 2 half-moves
19 Rb7 loss in 2 half-moves
20 Rc3 loss in 2 half-moves
21 Rd3 loss in 2 half-moves