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

EGTB: win in 2 half-moves

# move score
1 Rb1 win in 1 half-moves
2 Rb2 win in 1 half-moves
3 Rb6 win in 1 half-moves
4 Rh7 win in 1 half-moves
5 Rb4 draw
6 Rb5 draw
7 Ka3 loss in 2 half-moves
8 Ka5 loss in 2 half-moves
9 Kb3 loss in 2 half-moves
10 Ra7 loss in 2 half-moves
11 Rb3 loss in 2 half-moves
12 Rb8 loss in 2 half-moves
13 Rc7 loss in 2 half-moves
14 Rd7 loss in 2 half-moves
15 Re7 loss in 2 half-moves
16 Rf7 loss in 2 half-moves
17 Rg7 loss in 2 half-moves
18 Kb4 loss in 1 half-moves
19 Kb5 loss in 1 half-moves