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

EGTB: win in 2 half-moves

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