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

EGTB: win in 2 half-moves

# move score
1 Rb5 win in 1 half-moves
2 Rb3 draw
3 Rb4 draw
4 Rb6 draw
5 Rc7 draw
6 Rd7 draw
7 Rh7 draw
8 Ka1 loss in 2 half-moves
9 Ka2 loss in 2 half-moves
10 Ka3 loss in 2 half-moves
11 Kb1 loss in 2 half-moves
12 Kb3 loss in 2 half-moves
13 Kc1 loss in 2 half-moves
14 Kc2 loss in 2 half-moves
15 Kc3 loss in 2 half-moves
16 Ra7 loss in 2 half-moves
17 Rb8 loss in 2 half-moves
18 Rf7 loss in 2 half-moves
19 Rg7 loss in 2 half-moves
20 Re7 loss in 1 half-moves