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