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

EGTB: win in 6 half-moves

# move score
1 Rb8 win in 5 half-moves
2 Ka4 draw
3 Ka6 draw
4 Kb5 draw
5 Kb6 draw
6 Kc7 draw
7 Kc8 draw
8 Kd7 draw
9 Ra4 draw
10 Rb1 draw
11 Rb2 draw
12 Rb3 draw
13 Rc4 draw
14 Rd4 draw
15 Re4 draw
16 Rf4 draw
17 Ke7 loss in 2 half-moves
18 Ke8 loss in 2 half-moves
19 Rb5 loss in 2 half-moves
20 Rb6 loss in 2 half-moves
21 Rb7 loss in 2 half-moves
22 Rg4 loss in 2 half-moves
23 Rh4 loss in 2 half-moves