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

EGTB: win in 2 half-moves

# move score
1 Rb4 win in 1 half-moves
2 Rb5 win in 1 half-moves
3 Rf6 win in 1 half-moves
4 Kb7 draw
5 Kb8 draw
6 Kc6 draw
7 Kc8 draw
8 Kd6 draw
9 Kd7 draw
10 Kd8 draw
11 Rb7 draw
12 Rb8 draw
13 Rg6 draw
14 Rh6 draw
15 Ra6 loss in 2 half-moves
16 Rb1 loss in 2 half-moves
17 Rb2 loss in 2 half-moves
18 Rc6 loss in 2 half-moves
19 Rd6 loss in 2 half-moves
20 Re6 loss in 2 half-moves
21 Rb3 loss in 1 half-moves