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

EGTB: win in 4 half-moves

# move score
1 Kc8 win in 3 half-moves
2 Ra4 win in 3 half-moves
3 Rb4 win in 3 half-moves
4 Rc4 win in 3 half-moves
5 Ka7 draw
6 Ka8 draw
7 Kb7 draw
8 Rd1 draw
9 Rd2 draw
10 Rd3 draw
11 Rd5 draw
12 Re4 draw
13 Rh4 draw
14 Kc7 loss in 2 half-moves
15 Rd6 loss in 2 half-moves
16 Rd7 loss in 2 half-moves
17 Rd8 loss in 2 half-moves
18 Rf4 loss in 2 half-moves
19 Rg4 loss in 2 half-moves