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

EGTB: win in 4 half-moves

# move score
1 Ra5 win in 3 half-moves
2 Kb3 draw
3 Kb4 draw
4 Kb5 draw
5 Kc3 draw
6 Kd3 draw
7 Kd4 draw
8 Kd5 draw
9 Ra3 draw
10 Ra4 draw
11 Rb1 draw
12 Rc1 draw
13 Rd1 draw
14 Kc5 loss in 4 half-moves
15 Ra8 loss in 4 half-moves
16 Re1 loss in 4 half-moves
17 Rh1 loss in 4 half-moves
18 Ra6 loss in 2 half-moves
19 Ra7 loss in 2 half-moves
20 Rf1 loss in 2 half-moves
21 Ra2 loss in 1 half-moves
22 Rg1 loss in 1 half-moves