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 Ra7 draw
3 Rb7 draw
4 Rc7 draw
5 Rd7 draw
6 Re1 draw
7 Re2 draw
8 Re3 draw
9 Re5 draw
10 Re6 draw
11 Kb1 loss in 2 half-moves
12 Kb3 loss in 2 half-moves
13 Kb4 loss in 2 half-moves
14 Kc4 loss in 2 half-moves
15 Kd1 loss in 2 half-moves
16 Kd3 loss in 2 half-moves
17 Kd4 loss in 2 half-moves
18 Re8 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
22 K1b2 loss in 1 half-moves
23 K1c2 loss in 1 half-moves
24 K1d2 loss in 1 half-moves
25 K3b2 loss in 1 half-moves
26 K3c2 loss in 1 half-moves
27 K3d2 loss in 1 half-moves