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

EGTB: win in 4 half-moves

# move score
1 Kb7 win in 3 half-moves
2 Kcc7 win in 3 half-moves
3 Kdc7 win in 3 half-moves
4 Rc7 win in 3 half-moves
5 Rb6 win in 7 half-moves
6 Kb8 draw
7 Ke8 draw
8 Ra6 draw
9 Rc1 draw
10 Rc2 draw
11 Rh6 draw
12 Kcd7 loss in 2 half-moves
13 Kdd7 loss in 2 half-moves
14 Ke7 loss in 2 half-moves
15 Rc3 loss in 2 half-moves
16 Rc4 loss in 2 half-moves
17 Rc5 loss in 2 half-moves
18 Rd6 loss in 2 half-moves
19 Re6 loss in 2 half-moves
20 Rf6 loss in 2 half-moves
21 Rg6 loss in 2 half-moves