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

EGTB: win in 4 half-moves

# move score
1 Rb5 win in 3 half-moves
2 Kb6 draw
3 Kb7 draw
4 Kb8 draw
5 Kcc6 draw
6 Kcc8 draw
7 Kcd6 draw
8 Kcd8 draw
9 Kdc6 draw
10 Kdc8 draw
11 Kdd6 draw
12 Kdd8 draw
13 Ke6 draw
14 Ke7 draw
15 Ke8 draw
16 Ra5 draw
17 Rc5 draw
18 Rg3 draw
19 Rg4 draw
20 Rg6 draw
21 Rg7 draw
22 Rg8 draw
23 Rh5 draw
24 Rd5 loss in 2 half-moves
25 Re5 loss in 2 half-moves
26 Rf5 loss in 2 half-moves
27 Rg1 loss in 2 half-moves
28 Rg2 loss in 2 half-moves