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 K7b7 draw
3 K7b8 draw
4 K8b7 draw
5 K8b8 draw
6 Ka6 draw
7 Kb6 draw
8 Rb1 draw
9 Rb2 draw
10 Rc3 draw
11 Rd3 draw
12 Rf3 draw
13 Ra3 loss in 2 half-moves
14 Rb5 loss in 2 half-moves
15 Rb6 loss in 2 half-moves
16 Rb7 loss in 2 half-moves
17 Rb8 loss in 2 half-moves
18 Re3 loss in 2 half-moves
19 Rg3 loss in 2 half-moves
20 Rh3 loss in 2 half-moves