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 Ka6 draw
3 Ka7 draw
4 Ka8 draw
5 Kb6 draw
6 Kb8 draw
7 Kc6 draw
8 Kc7 draw
9 Kc8 draw
10 Ra1 draw
11 Rb3 draw
12 Rb5 draw
13 Rb6 draw
14 Rc1 draw
15 Rd1 draw
16 Re1 draw
17 Rf1 draw
18 Rb2 loss in 2 half-moves
19 Rg1 loss in 2 half-moves
20 Rh1 loss in 2 half-moves