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 Rc4 win in 1 half-moves
3 Rb1 draw
4 Rb2 draw
5 Rb3 draw
6 Rd4 draw
7 Rg4 draw
8 Rh4 draw
9 Ka4 loss in 2 half-moves
10 Ka6 loss in 2 half-moves
11 Kb5 loss in 2 half-moves
12 Kb6 loss in 2 half-moves
13 Ra4 loss in 2 half-moves
14 Rb5 loss in 2 half-moves
15 Rb6 loss in 2 half-moves
16 Rb7 loss in 2 half-moves
17 Rf4 loss in 2 half-moves
18 Re4 loss in 1 half-moves