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

EGTB: win in 2 half-moves

# move score
1 Ra3 win in 1 half-moves
2 Kgg7 draw
3 Khg7 draw
4 Khh7 draw
5 Ra1 draw
6 Ra6 draw
7 Ra7 draw
8 Ra8 draw
9 Rb5 draw
10 Rc5 draw
11 Rd5 draw
12 Re5 draw
13 Rg5 draw
14 Kf7 loss in 2 half-moves
15 Kf8 loss in 2 half-moves
16 Kgh7 loss in 2 half-moves
17 Ra2 loss in 1 half-moves
18 Ra4 loss in 1 half-moves
19 Rf5 loss in 1 half-moves
20 Rh5 loss in 1 half-moves