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 Kb6 draw
3 Kb7 draw
4 Kb8 draw
5 Kc6 draw
6 Kc8 draw
7 Kcd7 draw
8 Kcd8 draw
9 Kd6 draw
10 Ke7 draw
11 Ked7 draw
12 Ked8 draw
13 Kf7 draw
14 Kf8 draw
15 Ra5 draw
16 Ra7 draw
17 Ra8 draw
18 Rb1 draw
19 Rc1 draw
20 Rg1 draw
21 Ra2 loss in 2 half-moves
22 Ra3 loss in 2 half-moves
23 Ra4 loss in 2 half-moves
24 Rd1 loss in 2 half-moves
25 Re1 loss in 2 half-moves
26 Rf1 loss in 2 half-moves
27 Rh1 loss in 2 half-moves