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

EGTB: win in 2 half-moves

# move score
1 Rb4 win in 1 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 Ra4 draw
11 Rc4 draw
12 Rd4 draw
13 Re4 draw
14 Rf2 draw
15 Rf3 draw
16 Rf6 draw
17 Rf7 draw
18 Rf8 draw
19 Rg4 draw
20 Rf1 loss in 2 half-moves
21 Rf5 loss in 2 half-moves
22 Rh4 loss in 2 half-moves