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

EGTB: win in 2 half-moves

# move score
1 Rb5 win in 1 half-moves
2 Rf4 win in 1 half-moves
3 Rb6 draw
4 Rb7 draw
5 Rb8 draw
6 Ka6 loss in 2 half-moves
7 Ka8 loss in 2 half-moves
8 Ra4 loss in 2 half-moves
9 Rb1 loss in 2 half-moves
10 Rb2 loss in 2 half-moves
11 Rb3 loss in 2 half-moves
12 Rc4 loss in 2 half-moves
13 Rd4 loss in 2 half-moves
14 Re4 loss in 2 half-moves
15 Rg4 loss in 2 half-moves
16 Rh4 loss in 2 half-moves
17 Kb6 loss in 1 half-moves
18 Kb7 loss in 1 half-moves
19 Kb8 loss in 1 half-moves