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 Rb1 win in 3 half-moves
3 Rb2 win in 3 half-moves
4 Rb3 win in 3 half-moves
5 K1b1 draw
6 K1b2 draw
7 K2b1 draw
8 K2b2 draw
9 Ka3 draw
10 Kb3 draw
11 Ra8 draw
12 Rc8 draw
13 Rd8 draw
14 Re8 draw
15 Rb5 loss in 2 half-moves
16 Rb6 loss in 2 half-moves
17 Rb7 loss in 2 half-moves
18 Rf8 loss in 2 half-moves
19 Rg8 loss in 2 half-moves
20 Rh8 loss in 2 half-moves