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

EGTB: win in 4 half-moves

# move score
1 Rb1 win in 3 half-moves
2 Rb2 win in 3 half-moves
3 Rb3 win in 3 half-moves
4 Rb5 win in 3 half-moves
5 Ra6 win in 7 half-moves
6 Ka1 draw
7 Ka3 draw
8 Kab3 draw
9 Kb1 draw
10 Kb2 draw
11 Kb4 draw
12 Kb5 draw
13 Kc3 draw
14 Kcb3 draw
15 Kd3 draw
16 Kd4 draw
17 Rb4 draw
18 Rh6 draw
19 Kc5 loss in 2 half-moves
20 Kd5 loss in 2 half-moves
21 Rb7 loss in 2 half-moves
22 Rb8 loss in 2 half-moves
23 Rc6 loss in 2 half-moves
24 Rd6 loss in 2 half-moves
25 Re6 loss in 2 half-moves
26 Rf6 loss in 2 half-moves
27 Rg6 loss in 2 half-moves