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

EGTB: win in 2 half-moves

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