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

EGTB: win in 6 half-moves

# move score
1 Rb3 win in 5 half-moves
2 Kb3 draw
3 Kc1 draw
4 Kd3 draw
5 Kdc2 draw
6 Kdd2 draw
7 Ra1 draw
8 Ra5 draw
9 Kb2 loss in 2 half-moves
10 Kb4 loss in 2 half-moves
11 Kc4 loss in 2 half-moves
12 Kcc2 loss in 2 half-moves
13 Kcd2 loss in 2 half-moves
14 Kd4 loss in 2 half-moves
15 Ke1 loss in 2 half-moves
16 Ke2 loss in 2 half-moves
17 Ra2 loss in 2 half-moves
18 Ra4 loss in 2 half-moves
19 Ra6 loss in 2 half-moves
20 Ra7 loss in 2 half-moves
21 Ra8 loss in 2 half-moves