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

EGTB: win in 4 half-moves

# move score
1 Rb1 win in 3 half-moves
2 Kb1 draw
3 Kb2 draw
4 Kc2 draw
5 Kcd1 draw
6 Kcd2 draw
7 Ked1 draw
8 Ked2 draw
9 Kf1 draw
10 Ra2 draw
11 Ra6 draw
12 Ke2 loss in 2 half-moves
13 Kf2 loss in 2 half-moves
14 Ra3 loss in 2 half-moves
15 Ra4 loss in 2 half-moves
16 Ra5 loss in 2 half-moves
17 Ra7 loss in 2 half-moves
18 Ra8 loss in 2 half-moves