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

EGTB: win in 2 half-moves

# move score
1 Re1 win in 1 half-moves
2 Ra3 draw
3 Re2 draw
4 Re6 draw
5 Re7 draw
6 Re8 draw
7 Rf3 draw
8 Rg3 draw
9 Rh3 draw
10 Kc7 loss in 2 half-moves
11 Kc8 loss in 2 half-moves
12 Kd7 loss in 2 half-moves
13 Ke7 loss in 2 half-moves
14 Ke8 loss in 2 half-moves
15 Rb3 loss in 2 half-moves
16 Rc3 loss in 2 half-moves
17 Rd3 loss in 2 half-moves
18 Re4 loss in 2 half-moves
19 Re5 loss in 2 half-moves