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 K6b6 win in 3 half-moves
3 K7b7 win in 3 half-moves
4 Kb8 win in 3 half-moves
5 Rb1 win in 3 half-moves
6 Rb3 win in 3 half-moves
7 Rb5 win in 3 half-moves
8 Ka5 win in 5 half-moves
9 Ka8 win in 5 half-moves
10 K6b7 draw
11 K7b6 draw
12 Ra2 draw
13 Rc2 draw
14 Rd2 draw
15 Rh2 draw
16 Kb5 loss in 2 half-moves
17 Rb6 loss in 2 half-moves
18 Rb7 loss in 2 half-moves
19 Rb8 loss in 2 half-moves
20 Re2 loss in 2 half-moves
21 Rf2 loss in 2 half-moves
22 Rg2 loss in 2 half-moves