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

EGTB: win in 4 half-moves

# move score
1 Rb7 win in 3 half-moves
2 Ka7 draw
3 Ka8 draw
4 Kb7 draw
5 Kbc7 draw
6 Kbc8 draw
7 Kd7 draw
8 Kdc7 draw
9 Kdc8 draw
10 Ke7 draw
11 Ke8 draw
12 Ra2 draw
13 Rb1 draw
14 Rb6 draw
15 Rc2 draw
16 Rd2 draw
17 Rh2 draw
18 Rb3 loss in 2 half-moves
19 Rb4 loss in 2 half-moves
20 Rb5 loss in 2 half-moves
21 Re2 loss in 2 half-moves
22 Rf2 loss in 2 half-moves
23 Rg2 loss in 2 half-moves