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 Rb1 draw
3 Rb5 draw
4 Rb6 draw
5 Rb8 draw
6 Rc2 draw
7 Rd2 draw
8 Re2 draw
9 Rh2 draw
10 Kb7 loss in 2 half-moves
11 Kb8 loss in 2 half-moves
12 Kcc7 loss in 2 half-moves
13 Kcd7 loss in 2 half-moves
14 Kdc7 loss in 2 half-moves
15 Kdd7 loss in 2 half-moves
16 Ke7 loss in 2 half-moves
17 Ke8 loss in 2 half-moves
18 Ra2 loss in 2 half-moves
19 Rb3 loss in 2 half-moves
20 Rb4 loss in 2 half-moves
21 Rf2 loss in 2 half-moves
22 Rg2 loss in 2 half-moves