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 Kd7 draw
4 Rb8 draw
5 Rb7 loss in 18 half-moves
6 Kc8 loss in 10 half-moves
7 Kd8 loss in 10 half-moves
8 Ra5 loss in 10 half-moves
9 Kb8 loss in 6 half-moves
10 Kb7 loss in 4 half-moves
11 Rf5 loss in 4 half-moves
12 Kc6 loss in 2 half-moves
13 Kd6 loss in 2 half-moves
14 Rb2 loss in 2 half-moves
15 Rb3 loss in 2 half-moves
16 Rb4 loss in 2 half-moves
17 Rb6 loss in 2 half-moves
18 Rc5 loss in 2 half-moves
19 Rd5 loss in 2 half-moves
20 Re5 loss in 2 half-moves
21 Rg5 loss in 1 half-moves
22 Rh5 loss in 1 half-moves