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

EGTB: win in 2 half-moves

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