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

EGTB: win in 2 half-moves

# move score
1 Rd6 win in 1 half-moves
2 Ra4 draw
3 Rb4 draw
4 Rf4 draw
5 Kb7 loss in 2 half-moves
6 Kb8 loss in 2 half-moves
7 Kcc7 loss in 2 half-moves
8 Kcd7 loss in 2 half-moves
9 Kdc7 loss in 2 half-moves
10 Kdd7 loss in 2 half-moves
11 Ke7 loss in 2 half-moves
12 Ke8 loss in 2 half-moves
13 Rc4 loss in 2 half-moves
14 Rd1 loss in 2 half-moves
15 Rd2 loss in 2 half-moves
16 Rd3 loss in 2 half-moves
17 Rd5 loss in 2 half-moves
18 Rd7 loss in 2 half-moves
19 Re4 loss in 2 half-moves
20 Rg4 loss in 2 half-moves
21 Rh4 loss in 2 half-moves