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

EGTB: win in 2 half-moves

# move score
1 Rb5 win in 1 half-moves
2 Rb6 win in 3 half-moves
3 Rb7 win in 3 half-moves
4 Ka7 draw
5 Ka8 draw
6 Kbb7 draw
7 Kbc7 draw
8 Kcb7 draw
9 Kcc7 draw
10 Kd7 draw
11 Kd8 draw
12 Ra1 draw
13 Rc1 draw
14 Rd1 draw
15 Re1 draw
16 Rb2 loss in 2 half-moves
17 Rb3 loss in 2 half-moves
18 Rb4 loss in 2 half-moves
19 Rf1 loss in 2 half-moves
20 Rg1 loss in 2 half-moves
21 Rh1 loss in 2 half-moves