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

EGTB: win in 4 half-moves

# move score
1 Ra6 win in 3 half-moves
2 K4b4 win in 7 half-moves
3 K4b5 win in 7 half-moves
4 K5b5 win in 7 half-moves
5 Kb3 win in 7 half-moves
6 Kb6 win in 7 half-moves
7 Rb8 win in 7 half-moves
8 Ra5 win in 9 half-moves
9 Ra7 win in 11 half-moves
10 K5b4 draw
11 Kc3 draw
12 Kc6 draw
13 Kd6 draw
14 Ra1 draw
15 Ra4 draw
16 Rc8 draw
17 Rd8 draw
18 Rh8 draw
19 K4d4 loss in 2 half-moves
20 K4d5 loss in 2 half-moves
21 K5d4 loss in 2 half-moves
22 K5d5 loss in 2 half-moves
23 Kd3 loss in 2 half-moves
24 Ra2 loss in 2 half-moves
25 Ra3 loss in 2 half-moves
26 Re8 loss in 2 half-moves
27 Rf8 loss in 2 half-moves
28 Rg8 loss in 2 half-moves