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

EGTB: win in 2 half-moves

# move score
1 Rb4 win in 1 half-moves
2 Rb5 win in 1 half-moves
3 Rb6 win in 1 half-moves
4 Kc7 draw
5 Kc8 draw
6 Kd7 draw
7 Ke7 draw
8 Ke8 draw
9 Rb2 draw
10 Rb3 draw
11 Rb7 draw
12 Kg4 loss in 1 half-moves
13 Kg5 loss in 1 half-moves
14 Kg6 loss in 1 half-moves
15 Kh4 loss in 1 half-moves
16 Kh6 loss in 1 half-moves
17 Ra8 loss in 1 half-moves
18 Rb1 loss in 1 half-moves
19 Rc8 loss in 1 half-moves