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

EGTB: win in 4 half-moves

# move score
1 Ra4 win in 3 half-moves
2 Ra7 win in 3 half-moves
3 Ra3 draw
4 Ra5 draw
5 Ra6 draw
6 Ra8 draw
7 Rb2 draw
8 Rc2 draw
9 Rd2 draw
10 Rf2 draw
11 Kb5 loss in 2 half-moves
12 Kb6 loss in 2 half-moves
13 Kb7 loss in 2 half-moves
14 Kc4 loss in 2 half-moves
15 Kc7 loss in 2 half-moves
16 Kcc5 loss in 2 half-moves
17 Kcd6 loss in 2 half-moves
18 Kd4 loss in 2 half-moves
19 Kd7 loss in 2 half-moves
20 Kdc5 loss in 2 half-moves
21 Kdd6 loss in 2 half-moves
22 Ke4 loss in 2 half-moves
23 Ke5 loss in 2 half-moves
24 Ke6 loss in 2 half-moves
25 Ra1 loss in 2 half-moves
26 Re2 loss in 2 half-moves
27 Rg2 loss in 2 half-moves
28 Rh2 loss in 2 half-moves