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

EGTB: win in 2 half-moves

# move score
1 Rb8 win in 1 half-moves
2 Ka2 win in 3 half-moves
3 Ka3 win in 3 half-moves
4 Ka5 win in 3 half-moves
5 Kb1 win in 3 half-moves
6 Kb2 win in 3 half-moves
7 Kb3 win in 3 half-moves
8 Rb1 win in 3 half-moves
9 Rb2 win in 3 half-moves
10 Rb3 win in 3 half-moves
11 Kb5 win in 9 half-moves
12 Rc4 draw
13 Rd4 draw
14 Re4 draw
15 Rf4 draw
16 Rb5 loss in 2 half-moves
17 Rb6 loss in 2 half-moves
18 Rb7 loss in 2 half-moves
19 Rg4 loss in 2 half-moves
20 Rh4 loss in 2 half-moves