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

EGTB: win in 2 half-moves

# move score
1 Rb7 win in 1 half-moves
2 Ka4 draw
3 Kb5 draw
4 Ra4 draw
5 Rb6 draw
6 Rf4 draw
7 Ka6 loss in 12 half-moves
8 Rb8 loss in 6 half-moves
9 Kb6 loss in 4 half-moves
10 Rb1 loss in 2 half-moves
11 Rb2 loss in 2 half-moves
12 Rb3 loss in 2 half-moves
13 Rb5 loss in 2 half-moves
14 Rc4 loss in 2 half-moves
15 Rd4 loss in 2 half-moves
16 Re4 loss in 2 half-moves
17 Rg4 loss in 1 half-moves
18 Rh4 loss in 1 half-moves