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

EGTB: win in 2 half-moves

# move score
1 Rb7 win in 1 half-moves
2 Rb8 win in 1 half-moves
3 Kc2 draw
4 Kc4 draw
5 Rb1 draw
6 Rb2 draw
7 Rb5 draw
8 Rb6 draw
9 Kb2 loss in 2 half-moves
10 Kb4 loss in 2 half-moves
11 Kd2 loss in 2 half-moves
12 Kd3 loss in 2 half-moves
13 Kd4 loss in 2 half-moves
14 Ke7 loss in 1 half-moves
15 Ke8 loss in 1 half-moves
16 Kf7 loss in 1 half-moves
17 Kg7 loss in 1 half-moves
18 Kg8 loss in 1 half-moves
19 Ra3 loss in 1 half-moves
20 Rb4 loss in 1 half-moves