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

EGTB: win in 2 half-moves

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