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 3 half-moves
3 K6b6 win in 5 half-moves
4 K7b7 win in 5 half-moves
5 Ka5 win in 5 half-moves
6 Ka8 win in 5 half-moves
7 Kb5 win in 5 half-moves
8 Kb8 win in 5 half-moves
9 Ra3 win in 5 half-moves
10 Rb1 win in 5 half-moves
11 Rb2 win in 5 half-moves
12 K7b6 draw
13 Rb6 draw
14 Rc3 draw
15 Rg3 draw
16 Rh3 draw
17 K6b7 loss in 2 half-moves
18 Rb7 loss in 2 half-moves
19 Rb8 loss in 2 half-moves
20 Rd3 loss in 2 half-moves
21 Re3 loss in 2 half-moves
22 Rf3 loss in 2 half-moves