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 Ka2 draw
3 Ka3 draw
4 Ka4 draw
5 Kb2 draw
6 Kc2 draw
7 Kc3 draw
8 Kc4 draw
9 Ra4 draw
10 Rc4 draw
11 Rd4 loss in 4 half-moves
12 Re4 loss in 4 half-moves
13 Rb5 loss in 2 half-moves
14 Rb6 loss in 2 half-moves
15 Rb7 loss in 2 half-moves
16 Rf4 loss in 1 half-moves
17 Rg4 loss in 1 half-moves
18 Rh4 loss in 1 half-moves