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 Rc2 win in 3 half-moves
3 Ra3 win in 5 half-moves
4 Kb1 draw
5 Kb2 draw
6 Kcd1 draw
7 Ked1 draw
8 Kf1 draw
9 Ra1 draw
10 Ra5 draw
11 Ra7 draw
12 Rg2 draw
13 Rh2 draw
14 Kc2 loss in 2 half-moves
15 Kcd2 loss in 2 half-moves
16 Ke2 loss in 2 half-moves
17 Ked2 loss in 2 half-moves
18 Kf2 loss in 2 half-moves
19 Ra4 loss in 2 half-moves
20 Ra6 loss in 2 half-moves
21 Ra8 loss in 2 half-moves
22 Rd2 loss in 2 half-moves
23 Re2 loss in 2 half-moves
24 Rf2 loss in 2 half-moves