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 Ka8 draw
4 Kb7 draw
5 Kc7 draw
6 Kc8 draw
7 Ra3 draw
8 Rb1 draw
9 Rb2 draw
10 Rc3 draw
11 Rd3 draw
12 Rh3 draw
13 Rb5 loss in 2 half-moves
14 Rb6 loss in 2 half-moves
15 Rb7 loss in 2 half-moves
16 Re3 loss in 2 half-moves
17 Rf3 loss in 2 half-moves
18 Rg3 loss in 2 half-moves