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

EGTB: win in 2 half-moves

# move score
1 Rb3 win in 1 half-moves
2 Kc7 draw
3 Rb1 draw
4 Rb2 draw
5 Rb5 draw
6 Rb6 draw
7 Rb7 draw
8 Kb7 loss in 2 half-moves
9 Kd7 loss in 2 half-moves
10 Kd8 loss in 2 half-moves
11 Ke1 loss in 1 half-moves
12 Ke2 loss in 1 half-moves
13 Ke3 loss in 1 half-moves
14 Kf1 loss in 1 half-moves
15 Kf3 loss in 1 half-moves
16 Kg1 loss in 1 half-moves
17 Kg2 loss in 1 half-moves
18 Kg3 loss in 1 half-moves
19 Ra8 loss in 1 half-moves
20 Rb4 loss in 1 half-moves