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 Rb7 win in 13 half-moves
3 Ka1 draw
4 Ka2 draw
5 Ka3 draw
6 Kb3 draw
7 Kbb1 draw
8 Kcb1 draw
9 Kd1 draw
10 Ra6 draw
11 Rg6 draw
12 Rh6 draw
13 Kbc2 loss in 2 half-moves
14 Kc3 loss in 2 half-moves
15 Kcc2 loss in 2 half-moves
16 Kd2 loss in 2 half-moves
17 Rb3 loss in 2 half-moves
18 Rb4 loss in 2 half-moves
19 Rb5 loss in 2 half-moves
20 Rc6 loss in 2 half-moves
21 Rd6 loss in 2 half-moves
22 Re6 loss in 2 half-moves
23 Rf6 loss in 2 half-moves