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

EGTB: win in 4 half-moves

# move score
1 Rb2 win in 3 half-moves
2 Ka1 draw
3 Ka2 draw
4 Kbb2 draw
5 Kbc2 draw
6 Kcb2 draw
7 Kcc2 draw
8 Kd1 draw
9 Kd2 draw
10 Ra8 draw
11 Rb3 draw
12 Rb4 draw
13 Rf8 draw
14 Rb5 loss in 2 half-moves
15 Rb6 loss in 2 half-moves
16 Rb7 loss in 2 half-moves
17 Rc8 loss in 2 half-moves
18 Rd8 loss in 2 half-moves
19 Re8 loss in 2 half-moves
20 Rg8 loss in 2 half-moves
21 Rh8 loss in 2 half-moves