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

EGTB: win in 4 half-moves

# move score
1 Rc1 win in 3 half-moves
2 Ra7 win in 5 half-moves
3 Ra8 win in 5 half-moves
4 Kc7 draw
5 Kc8 draw
6 Kd7 draw
7 Ke7 draw
8 Ke8 draw
9 Kf7 draw
10 Kf8 draw
11 Kg8 draw
12 Kh7 draw
13 Kh8 draw
14 Ra2 draw
15 Rb1 draw
16 Rd1 draw
17 Rh1 draw
18 Kf6 loss in 2 half-moves
19 Kg6 loss in 2 half-moves
20 Kh6 loss in 2 half-moves
21 Ra3 loss in 2 half-moves
22 Ra4 loss in 2 half-moves
23 Ra5 loss in 2 half-moves
24 Ra6 loss in 2 half-moves
25 Re1 loss in 2 half-moves
26 Rf1 loss in 2 half-moves
27 Rg1 loss in 2 half-moves