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 Rb6 win in 1 half-moves
4 Ka7 draw
5 Kf4 draw
6 Kf5 draw
7 Kf6 draw
8 Kg4 draw
9 Kg6 draw
10 Kh4 draw
11 Kh5 draw
12 Kh6 draw
13 Rb2 draw
14 Rb3 draw
15 Rb7 draw
16 Rc8 draw
17 Rd8 draw
18 Re8 draw
19 Rf8 draw
20 Rg8 draw
21 Rh8 draw
22 Kb7 loss in 2 half-moves
23 Rb1 loss in 1 half-moves