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

EGTB: win in 4 half-moves

# move score
1 Re4 win in 3 half-moves
2 Rb8 draw
3 Re5 draw
4 Rf8 draw
5 Rg8 draw
6 Rh8 draw
7 Kc4 loss in 2 half-moves
8 Kc5 loss in 2 half-moves
9 Kc6 loss in 2 half-moves
10 Kd2 loss in 2 half-moves
11 Kd3 loss in 2 half-moves
12 Kd6 loss in 2 half-moves
13 Kdd4 loss in 2 half-moves
14 Kde4 loss in 2 half-moves
15 Ke2 loss in 2 half-moves
16 Ke5 loss in 2 half-moves
17 Ke6 loss in 2 half-moves
18 Ked4 loss in 2 half-moves
19 Kee4 loss in 2 half-moves
20 Kf2 loss in 2 half-moves
21 Kf3 loss in 2 half-moves
22 Kf4 loss in 2 half-moves
23 Ra8 loss in 2 half-moves
24 Rc8 loss in 2 half-moves
25 Rd8 loss in 2 half-moves
26 Re6 loss in 2 half-moves
27 Re7 loss in 2 half-moves