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 Kd5 draw
3 Kd7 draw
4 Ke5 draw
5 Ke6 draw
6 Ke7 draw
7 Ra4 draw
8 Rc4 draw
9 Rd4 draw
10 Re4 draw
11 Rf1 draw
12 Rf2 draw
13 Rf3 draw
14 Rf5 draw
15 Rf6 draw
16 Rf7 draw
17 Rf8 draw
18 Rh4 draw
19 Kc5 loss in 2 half-moves
20 Kc6 loss in 2 half-moves
21 Kc7 loss in 2 half-moves
22 Rg4 loss in 2 half-moves