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

EGTB: win in 4 half-moves

# move score
1 Rb8 win in 3 half-moves
2 Ka7 draw
3 Kb7 draw
4 Kb8 draw
5 Ke4 draw
6 Ke5 draw
7 Kf5 draw
8 Kg3 draw
9 Kg4 draw
10 Kg5 draw
11 Ra4 draw
12 Rb3 draw
13 Rb5 draw
14 Rb6 draw
15 Rb7 draw
16 Ke3 loss in 2 half-moves
17 Kf3 loss in 2 half-moves
18 Rb1 loss in 2 half-moves
19 Rb2 loss in 2 half-moves
20 Rc4 loss in 2 half-moves
21 Rd4 loss in 2 half-moves
22 Re4 loss in 2 half-moves