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 Kc6 loss in 12 half-moves
3 Kc7 loss in 10 half-moves
4 Ke5 loss in 10 half-moves
5 Ke6 loss in 10 half-moves
6 Rd7 loss in 10 half-moves
7 Kd7 loss in 8 half-moves
8 Re6 loss in 8 half-moves
9 Re8 loss in 8 half-moves
10 Re5 loss in 6 half-moves
11 Kc5 loss in 2 half-moves
12 Kd5 loss in 2 half-moves
13 Ra7 loss in 2 half-moves
14 Rb7 loss in 2 half-moves
15 Rc7 loss in 2 half-moves
16 Re2 loss in 2 half-moves
17 Re3 loss in 2 half-moves
18 Re4 loss in 2 half-moves
19 Rf7 loss in 2 half-moves
20 Rg7 loss in 2 half-moves
21 Rh7 loss in 2 half-moves