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 Rb7 win in 11 half-moves
3 Rb8 win in 11 half-moves
4 Kb6 draw
5 Kb7 draw
6 Kb8 draw
7 Kc6 draw
8 Kc8 draw
9 Kcd7 draw
10 Kcd8 draw
11 Kd6 draw
12 Ke7 draw
13 Ked7 draw
14 Ked8 draw
15 Kf7 draw
16 Kf8 draw
17 Ra3 draw
18 Rb4 draw
19 Rb5 draw
20 Rh3 draw
21 Rb1 loss in 2 half-moves
22 Rb2 loss in 2 half-moves
23 Rc3 loss in 2 half-moves
24 Rd3 loss in 2 half-moves
25 Re3 loss in 2 half-moves
26 Rf3 loss in 2 half-moves
27 Rg3 loss in 2 half-moves