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

EGTB: win in 2 half-moves

# move score
1 Rb7 win in 1 half-moves
2 Ka1 draw
3 Ka2 draw
4 Kbc1 draw
5 Kdc1 draw
6 Ke1 draw
7 Ra8 draw
8 Rb6 draw
9 Rf8 draw
10 Rg8 draw
11 Rh8 draw
12 Kb2 loss in 2 half-moves
13 Kbc2 loss in 2 half-moves
14 Kd2 loss in 2 half-moves
15 Kdc2 loss in 2 half-moves
16 Ke2 loss in 2 half-moves
17 Rb2 loss in 2 half-moves
18 Rb3 loss in 2 half-moves
19 Rb4 loss in 2 half-moves
20 Rb5 loss in 2 half-moves
21 Rc8 loss in 2 half-moves
22 Rd8 loss in 2 half-moves
23 Re8 loss in 2 half-moves