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

EGTB: win in 4 half-moves

# move score
1 Rb2 win in 3 half-moves
2 Ka2 draw
3 Ka5 draw
4 Kb2 draw
5 Ra7 draw
6 Rb1 draw
7 Rb3 draw
8 Rb8 draw
9 Rf7 draw
10 K3b3 loss in 2 half-moves
11 K3b4 loss in 2 half-moves
12 K4b3 loss in 2 half-moves
13 K4b4 loss in 2 half-moves
14 Kb5 loss in 2 half-moves
15 Rb4 loss in 2 half-moves
16 Rb5 loss in 2 half-moves
17 Rb6 loss in 2 half-moves
18 Rc7 loss in 2 half-moves
19 Rd7 loss in 2 half-moves
20 Re7 loss in 2 half-moves
21 Rg7 loss in 2 half-moves
22 Rh7 loss in 2 half-moves