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

EGTB: win in 2 half-moves

# move score
1 Rb3 win in 1 half-moves
2 Rb1 draw
3 Rb2 draw
4 Rf8 draw
5 Ra8 loss in 8 half-moves
6 Re8 loss in 8 half-moves
7 Rh8 loss in 8 half-moves
8 Kb7 loss in 6 half-moves
9 Rc8 loss in 6 half-moves
10 Kb6 loss in 4 half-moves
11 Kc6 loss in 2 half-moves
12 Kc8 loss in 2 half-moves
13 Kd6 loss in 2 half-moves
14 Kd7 loss in 2 half-moves
15 Kd8 loss in 2 half-moves
16 Rb4 loss in 2 half-moves
17 Rb5 loss in 2 half-moves
18 Rb6 loss in 2 half-moves
19 Rb7 loss in 2 half-moves
20 Rd8 loss in 2 half-moves
21 Rg8 loss in 2 half-moves