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

EGTB: win in 4 half-moves

# move score
1 Rb7 win in 3 half-moves
2 Kd6 win in 17 half-moves
3 Kb6 draw
4 Kb7 draw
5 Kb8 draw
6 Kc6 draw
7 Kc8 draw
8 Kcd7 draw
9 Kcd8 draw
10 Ked7 draw
11 Ked8 draw
12 Kf8 draw
13 Ra2 draw
14 Ra8 draw
15 Ke7 loss in 2 half-moves
16 Kf7 loss in 2 half-moves
17 Ra1 loss in 2 half-moves
18 Ra3 loss in 2 half-moves
19 Ra4 loss in 2 half-moves
20 Ra5 loss in 2 half-moves
21 Ra6 loss in 2 half-moves