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 Rb3 draw
3 Ka2 loss in 2 half-moves
4 Ka4 loss in 2 half-moves
5 Ka6 loss in 2 half-moves
6 Kb1 loss in 2 half-moves
7 Kb6 loss in 2 half-moves
8 Ra2 loss in 2 half-moves
9 Rb1 loss in 2 half-moves
10 Rb6 loss in 2 half-moves
11 Rb7 loss in 2 half-moves
12 Rc2 loss in 2 half-moves
13 Rd2 loss in 2 half-moves
14 Re2 loss in 2 half-moves
15 Rf2 loss in 2 half-moves
16 Rg2 loss in 2 half-moves
17 Rh2 loss in 2 half-moves
18 Kb4 loss in 1 half-moves
19 Kb5 loss in 1 half-moves
20 Rb4 loss in 1 half-moves
21 Rb5 loss in 1 half-moves