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 Kb6 draw
3 Kc6 draw
4 Kd6 draw
5 Kd7 draw
6 Rb8 draw
7 Rd1 draw
8 Kc8 loss in 10 half-moves
9 Rb2 loss in 10 half-moves
10 Rb7 loss in 10 half-moves
11 Kb7 loss in 6 half-moves
12 Kb8 loss in 6 half-moves
13 Rc1 loss in 6 half-moves
14 Kd8 loss in 4 half-moves
15 Ra1 loss in 4 half-moves
16 Rb3 loss in 2 half-moves
17 Rb5 loss in 2 half-moves
18 Rb6 loss in 2 half-moves
19 Re1 loss in 2 half-moves
20 Rg1 loss in 2 half-moves
21 Rh1 loss in 2 half-moves
22 Rf1 loss in 1 half-moves