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 Ra7 draw
3 Rb2 draw
4 Rb3 draw
5 Rb4 draw
6 Kb8 loss in 2 half-moves
7 Kc6 loss in 2 half-moves
8 Kcc7 loss in 2 half-moves
9 Kcd8 loss in 2 half-moves
10 Kd6 loss in 2 half-moves
11 Kdc7 loss in 2 half-moves
12 Kdd8 loss in 2 half-moves
13 Ke6 loss in 2 half-moves
14 Ke7 loss in 2 half-moves
15 Ke8 loss in 2 half-moves
16 Rb5 loss in 2 half-moves
17 Rb6 loss in 2 half-moves
18 Rb8 loss in 2 half-moves
19 Rc7 loss in 2 half-moves