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

EGTB: win in 2 half-moves

# move score
1 Rb5 win in 1 half-moves
2 Ka3 draw
3 Kb2 draw
4 Kb3 draw
5 Ra8 draw
6 Rb1 draw
7 Rb2 draw
8 Ka1 loss in 10 half-moves
9 Kb1 loss in 10 half-moves
10 Rc8 loss in 4 half-moves
11 Rd8 loss in 4 half-moves
12 Rh8 loss in 4 half-moves
13 Rb3 loss in 2 half-moves
14 Rb4 loss in 2 half-moves
15 Rb6 loss in 2 half-moves
16 Rb7 loss in 2 half-moves
17 Re8 loss in 2 half-moves
18 Rf8 loss in 2 half-moves
19 Rg8 loss in 2 half-moves