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 Ka7 draw
3 Kb7 draw
4 Kb8 draw
5 Rb1 draw
6 Rb2 draw
7 Rb5 draw
8 Rb7 draw
9 Rb8 draw
10 Re3 loss in 20 half-moves
11 Ra3 loss in 18 half-moves
12 Rd3 loss in 16 half-moves
13 Rg3 loss in 16 half-moves
14 Rb6 loss in 2 half-moves
15 Rc3 loss in 2 half-moves
16 Rh3 loss in 2 half-moves
17 Rf3 loss in 1 half-moves