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 Rf1 win in 1 half-moves
3 Rb6 draw
4 Ka6 loss in 2 half-moves
5 Ka8 loss in 2 half-moves
6 Kb8 loss in 2 half-moves
7 Ra1 loss in 2 half-moves
8 Rb2 loss in 2 half-moves
9 Rb3 loss in 2 half-moves
10 Rb4 loss in 2 half-moves
11 Rb8 loss in 2 half-moves
12 Rc1 loss in 2 half-moves
13 Rd1 loss in 2 half-moves
14 Re1 loss in 2 half-moves
15 Rg1 loss in 2 half-moves
16 Rh1 loss in 2 half-moves
17 Kb6 loss in 1 half-moves
18 Kb7 loss in 1 half-moves
19 Rb7 loss in 1 half-moves