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

EGTB: win in 4 half-moves

# move score
1 Rd7 win in 3 half-moves
2 Ra2 draw
3 Ra3 draw
4 Ra4 draw
5 Ra5 draw
6 Kb7 loss in 2 half-moves
7 Kb8 loss in 2 half-moves
8 Kc7 loss in 2 half-moves
9 Kcd7 loss in 2 half-moves
10 Kcd8 loss in 2 half-moves
11 Kd6 loss in 2 half-moves
12 Ke6 loss in 2 half-moves
13 Ke8 loss in 2 half-moves
14 Ked7 loss in 2 half-moves
15 Ked8 loss in 2 half-moves
16 Kf6 loss in 2 half-moves
17 Kf7 loss in 2 half-moves
18 Kf8 loss in 2 half-moves
19 Ra1 loss in 2 half-moves
20 Ra6 loss in 2 half-moves
21 Ra8 loss in 2 half-moves
22 Rb7 loss in 2 half-moves
23 Rc7 loss in 2 half-moves