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

EGTB: win in 2 half-moves

# move score
1 Re4 win in 1 half-moves
2 Re5 win in 1 half-moves
3 Kb5 loss in 2 half-moves
4 Kb6 loss in 2 half-moves
5 Kb7 loss in 2 half-moves
6 Kc5 loss in 2 half-moves
7 Kc7 loss in 2 half-moves
8 Kd5 loss in 2 half-moves
9 Kd6 loss in 2 half-moves
10 Kd7 loss in 2 half-moves
11 Rd6 loss in 2 half-moves
12 Re1 loss in 2 half-moves
13 Re2 loss in 2 half-moves
14 Re7 loss in 2 half-moves
15 Re8 loss in 2 half-moves
16 Rf6 loss in 2 half-moves
17 Re3 loss in 1 half-moves
18 Rg6 loss in 1 half-moves
19 Rh6 loss in 1 half-moves