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

EGTB: win in 2 half-moves

# move score
1 Ka7 win in 1 half-moves
2 Ka8 draw
3 Kb7 draw
4 Kc7 draw
5 Kc8 draw
6 Rd8 draw
7 Re4 draw
8 Re6 draw
9 Re7 draw
10 Rf8 draw
11 Rc8 loss in 2 half-moves
12 Re1 loss in 2 half-moves
13 Re2 loss in 2 half-moves
14 Re3 loss in 2 half-moves
15 Re5 loss in 2 half-moves
16 Rg8 loss in 2 half-moves
17 Rh8 loss in 2 half-moves