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

EGTB: win in 2 half-moves

# move score
1 Ra7 win in 1 half-moves
2 Re7 win in 3 half-moves
3 Rf7 win in 3 half-moves
4 Rb1 draw
5 Rb2 draw
6 Kf6 loss in 2 half-moves
7 Kf7 loss in 2 half-moves
8 Kf8 loss in 2 half-moves
9 Kg6 loss in 2 half-moves
10 Kgg8 loss in 2 half-moves
11 Kgh7 loss in 2 half-moves
12 Kh6 loss in 2 half-moves
13 Khg8 loss in 2 half-moves
14 Khh7 loss in 2 half-moves
15 Rb3 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 Rb8 loss in 2 half-moves
20 Rc7 loss in 2 half-moves
21 Rd7 loss in 2 half-moves