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

EGTB: win in 2 half-moves

# move score
1 Rb4 win in 1 half-moves
2 Rb1 draw
3 Rb2 draw
4 Rb3 draw
5 Rb5 draw
6 Rc7 draw
7 Rd7 draw
8 Re7 draw
9 Rf7 draw
10 Rg7 draw
11 Rh7 draw
12 Kb1 loss in 2 half-moves
13 Kb2 loss in 2 half-moves
14 Kb3 loss in 2 half-moves
15 Kc1 loss in 2 half-moves
16 Kc3 loss in 2 half-moves
17 Kd1 loss in 2 half-moves
18 Kd2 loss in 2 half-moves
19 Kd3 loss in 2 half-moves
20 Rb6 loss in 2 half-moves
21 Rb8 loss in 2 half-moves
22 Ra7 loss in 1 half-moves