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

EGTB: win in 2 half-moves

# move score
1 Rb8 win in 1 half-moves
2 Kb4 draw
3 Kc4 draw
4 Kc6 draw
5 Kd4 draw
6 Kd5 draw
7 Kd6 draw
8 Ra3 draw
9 Rb2 draw
10 Rb4 draw
11 Rb5 draw
12 Rc3 draw
13 Rd3 draw
14 Rf3 draw
15 Kb5 loss in 4 half-moves
16 Kb6 loss in 4 half-moves
17 Rb1 loss in 2 half-moves
18 Rb6 loss in 2 half-moves
19 Rb7 loss in 2 half-moves
20 Re3 loss in 2 half-moves
21 Rg3 loss in 2 half-moves
22 Rh3 loss in 2 half-moves