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

EGTB: win in 4 half-moves

# move score
1 Ra7 win in 3 half-moves
2 K4a5 draw
3 K4b5 draw
4 K6a5 draw
5 K6b5 draw
6 Ka3 draw
7 Ka7 draw
8 Kb6 draw
9 Kb7 draw
10 Rb8 draw
11 Rg8 draw
12 Kb3 loss in 2 half-moves
13 Kb4 loss in 2 half-moves
14 Rc8 loss in 2 half-moves
15 Rd8 loss in 2 half-moves
16 Re8 loss in 2 half-moves
17 Rf8 loss in 2 half-moves
18 Rh8 loss in 2 half-moves