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

EGTB: win in 4 half-moves

# move score
1 Ra3 win in 3 half-moves
2 K4a5 draw
3 K6a5 draw
4 Ka3 draw
5 Ka7 draw
6 Kb3 draw
7 Kb4 draw
8 Ra2 draw
9 Rb1 draw
10 Rg1 draw
11 K4b5 loss in 2 half-moves
12 K6b5 loss in 2 half-moves
13 Kb6 loss in 2 half-moves
14 Kb7 loss in 2 half-moves
15 Rc1 loss in 2 half-moves
16 Rd1 loss in 2 half-moves
17 Re1 loss in 2 half-moves
18 Rf1 loss in 2 half-moves
19 Rh1 loss in 2 half-moves