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

EGTB: win in 2 half-moves

# move score
1 Rb5 win in 1 half-moves
2 Ka1 draw
3 Ka2 draw
4 Kb2 draw
5 Ra4 draw
6 Rb3 draw
7 Rb6 draw
8 Rb7 draw
9 Rb8 draw
10 Rc4 draw
11 Rd4 draw
12 Rh4 draw
13 Kc1 loss in 2 half-moves
14 Kc2 loss in 2 half-moves
15 Rb2 loss in 2 half-moves
16 Re4 loss in 2 half-moves
17 Rf4 loss in 2 half-moves
18 Rg4 loss in 2 half-moves