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

EGTB: win in 2 half-moves

# move score
1 Rb1 win in 1 half-moves
2 Ra6 draw
3 Rf6 draw
4 Rg6 draw
5 Rh6 draw
6 K4b4 loss in 2 half-moves
7 K4b5 loss in 2 half-moves
8 K5b4 loss in 2 half-moves
9 K5b5 loss in 2 half-moves
10 Ka3 loss in 2 half-moves
11 Ka6 loss in 2 half-moves
12 Kb3 loss in 2 half-moves
13 Rb2 loss in 2 half-moves
14 Rb3 loss in 2 half-moves
15 Rb4 loss in 2 half-moves
16 Rb5 loss in 2 half-moves
17 Rb7 loss in 2 half-moves
18 Rb8 loss in 2 half-moves
19 Rc6 loss in 2 half-moves
20 Rd6 loss in 2 half-moves
21 Re6 loss in 2 half-moves