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

EGTB: win in 4 half-moves

# move score
1 Rb6 win in 3 half-moves
2 Rb8 win in 3 half-moves
3 Rb5 win in 7 half-moves
4 Rb7 win in 7 half-moves
5 Ka6 draw
6 Ka8 draw
7 Kb6 draw
8 Kb7 draw
9 Kb8 draw
10 Kd6 draw
11 Kd7 draw
12 Kd8 draw
13 Ke6 draw
14 Ke8 draw
15 Kf6 draw
16 Kf7 draw
17 Kf8 draw
18 Ra4 draw
19 Rc4 draw
20 Rd4 draw
21 Rh4 draw
22 Rb1 loss in 2 half-moves
23 Rb2 loss in 2 half-moves
24 Rb3 loss in 2 half-moves
25 Re4 loss in 2 half-moves
26 Rf4 loss in 2 half-moves
27 Rg4 loss in 2 half-moves