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 Kb7 draw
3 Kb8 draw
4 Kcc7 draw
5 Kcd7 draw
6 Kdc7 draw
7 Kdd7 draw
8 Ke7 draw
9 Ke8 draw
10 Ra2 draw
11 Rb2 draw
12 Rc2 draw
13 Rd1 draw
14 Rd6 draw
15 Rh2 draw
16 Rd3 loss in 2 half-moves
17 Rd4 loss in 2 half-moves
18 Rd5 loss in 2 half-moves
19 Re2 loss in 2 half-moves
20 Rf2 loss in 2 half-moves
21 Rg2 loss in 2 half-moves