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

EGTB: win in 4 half-moves

# move score
1 Kc2 win in 3 half-moves
2 Kd2 win in 3 half-moves
3 Rd2 win in 3 half-moves
4 Kc1 draw
5 Rd4 draw
6 Rd5 draw
7 Rd7 draw
8 Rf3 draw
9 Ke1 loss in 2 half-moves
10 Ke2 loss in 2 half-moves
11 Ra3 loss in 2 half-moves
12 Rb3 loss in 2 half-moves
13 Rc3 loss in 2 half-moves
14 Rd6 loss in 2 half-moves
15 Rd8 loss in 2 half-moves
16 Re3 loss in 2 half-moves
17 Rg3 loss in 2 half-moves
18 Rh3 loss in 2 half-moves