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

EGTB: win in 2 half-moves

# move score
1 Rb2 win in 1 half-moves
2 Rd4 win in 1 half-moves
3 Rb1 draw
4 K4b5 loss in 2 half-moves
5 K5b5 loss in 2 half-moves
6 Ka3 loss in 2 half-moves
7 Ka6 loss in 2 half-moves
8 Kb6 loss in 2 half-moves
9 Rb5 loss in 2 half-moves
10 Rb6 loss in 2 half-moves
11 Rb7 loss in 2 half-moves
12 Rb8 loss in 2 half-moves
13 Rc4 loss in 2 half-moves
14 Re4 loss in 2 half-moves
15 Rf4 loss in 2 half-moves
16 Rg4 loss in 2 half-moves
17 Rh4 loss in 2 half-moves
18 Kb3 loss in 1 half-moves
19 Rb3 loss in 1 half-moves