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 Ka6 draw
3 Kb6 draw
4 Kb7 draw
5 Rb2 draw
6 Rb3 draw
7 Ra1 loss in 2 half-moves
8 Rb5 loss in 2 half-moves
9 Rb6 loss in 2 half-moves
10 Rb7 loss in 2 half-moves
11 Rb8 loss in 2 half-moves
12 Re1 loss in 2 half-moves
13 Rg1 loss in 2 half-moves
14 Rh1 loss in 2 half-moves
15 Ka8 loss in 1 half-moves
16 Kb8 loss in 1 half-moves
17 Rc1 loss in 1 half-moves
18 Rd1 loss in 1 half-moves
19 Rf1 loss in 1 half-moves