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