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

EGTB: win in 2 half-moves

# move score
1 Rb7 win in 1 half-moves
2 Kc5 draw
3 Kd5 draw
4 Kd7 draw
5 Ke5 draw
6 Ke6 draw
7 Ra7 draw
8 Rc7 draw
9 Rd7 draw
10 Re1 draw
11 Re2 draw
12 Re3 draw
13 Re4 draw
14 Re5 draw
15 Re6 draw
16 Re8 draw
17 Rf7 draw
18 Rg7 draw
19 Rh7 draw
20 Kc6 loss in 2 half-moves
21 Kc7 loss in 2 half-moves