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

EGTB: win in 2 half-moves

# move score
1 Ka7 win in 1 half-moves
2 Rb1 win in 1 half-moves
3 Rb2 win in 1 half-moves
4 Rb3 win in 1 half-moves
5 Rb5 win in 1 half-moves
6 Rb6 win in 1 half-moves
7 Rb7 win in 1 half-moves
8 Kb7 draw
9 Kg6 draw
10 Kg7 draw
11 Kg8 draw
12 Kh6 draw
13 Kh8 draw
14 Rc8 draw
15 Rd8 draw
16 Re8 draw
17 Rf8 draw
18 Rg8 draw
19 Rh8 draw
20 Rb4 loss in 1 half-moves