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

EGTB: win in 4 half-moves

# move score
1 Rb3 win in 3 half-moves
2 Kc5 draw
3 Kc6 draw
4 Kc7 draw
5 Kd5 draw
6 Kd7 draw
7 Ke5 draw
8 Ke6 draw
9 Ke7 draw
10 Rc3 draw
11 Rd1 draw
12 Rd2 draw
13 Rd4 draw
14 Re3 draw
15 Rf3 draw
16 Rh3 draw
17 Ra3 loss in 2 half-moves
18 Rd5 loss in 2 half-moves
19 Rg3 loss in 2 half-moves