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

EGTB: win in 4 half-moves

# move score
1 Rd6 win in 3 half-moves
2 Ra7 win in 5 half-moves
3 Rb7 win in 5 half-moves
4 Ka1 draw
5 Ka2 draw
6 Ka3 draw
7 Ka4 draw
8 Ka6 draw
9 Kb1 draw
10 Kb3 draw
11 Kb4 draw
12 Kb5 draw
13 Kb6 draw
14 Kc1 draw
15 Rc7 draw
16 Rd1 draw
17 Rd5 draw
18 Rd8 draw
19 Rh7 draw
20 Kc2 loss in 2 half-moves
21 Kc3 loss in 2 half-moves
22 Rd2 loss in 2 half-moves
23 Rd3 loss in 2 half-moves
24 Rd4 loss in 2 half-moves
25 Re7 loss in 2 half-moves
26 Rf7 loss in 2 half-moves
27 Rg7 loss in 2 half-moves