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

EGTB: win in 4 half-moves

# move score
1 Re1 win in 3 half-moves
2 Kb8 draw
3 Ke8 draw
4 Ra2 draw
5 Ra3 draw
6 Ra8 draw
7 Rf1 draw
8 Rg1 draw
9 Rh1 draw
10 Kb7 loss in 2 half-moves
11 Kcc7 loss in 2 half-moves
12 Kcd7 loss in 2 half-moves
13 Kdc7 loss in 2 half-moves
14 Kdd7 loss in 2 half-moves
15 Ke7 loss in 2 half-moves
16 Ra4 loss in 2 half-moves
17 Ra5 loss in 2 half-moves
18 Ra6 loss in 2 half-moves
19 Ra7 loss in 2 half-moves
20 Rb1 loss in 2 half-moves
21 Rc1 loss in 2 half-moves
22 Rd1 loss in 2 half-moves