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

EGTB: win in 4 half-moves

# move score
1 Rb2 win in 3 half-moves
2 Kc5 win in 7 half-moves
3 Kcd3 win in 7 half-moves
4 Kd5 win in 7 half-moves
5 Kdc4 win in 7 half-moves
6 Kdd3 win in 7 half-moves
7 Rc2 win in 7 half-moves
8 Kb2 draw
9 Kb3 draw
10 Kb4 draw
11 Kc2 draw
12 Kcc4 draw
13 Kd2 draw
14 Ra1 draw
15 Ra3 draw
16 Ra4 draw
17 Ra7 draw
18 Rd2 draw
19 Ke3 loss in 2 half-moves
20 Ke4 loss in 2 half-moves
21 Ke5 loss in 2 half-moves
22 Ra5 loss in 2 half-moves
23 Ra6 loss in 2 half-moves
24 Ra8 loss in 2 half-moves
25 Re2 loss in 2 half-moves
26 Rf2 loss in 2 half-moves
27 Rg2 loss in 2 half-moves
28 Rh2 loss in 2 half-moves