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

EGTB: win in 4 half-moves

# move score
1 Rd1 win in 3 half-moves
2 K2b2 draw
3 K2b3 draw
4 K3b2 draw
5 K3b3 draw
6 Ka1 draw
7 Ka4 draw
8 Kb1 draw
9 Kb4 draw
10 Ra6 draw
11 Rb6 draw
12 Rc6 draw
13 Rd2 draw
14 Rd7 draw
15 Rd8 draw
16 Rh6 draw
17 Rd3 loss in 2 half-moves
18 Rd4 loss in 2 half-moves
19 Rd5 loss in 2 half-moves
20 Re6 loss in 2 half-moves
21 Rf6 loss in 2 half-moves
22 Rg6 loss in 2 half-moves