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

EGTB: win in 2 half-moves

# move score
1 Rb4 win in 1 half-moves
2 Re8 win in 1 half-moves
3 Re6 draw
4 Re7 draw
5 Kc5 loss in 2 half-moves
6 Kc6 loss in 2 half-moves
7 Kc7 loss in 2 half-moves
8 Kd5 loss in 2 half-moves
9 Kd7 loss in 2 half-moves
10 Ke5 loss in 2 half-moves
11 Ra4 loss in 2 half-moves
12 Rc4 loss in 2 half-moves
13 Rd4 loss in 2 half-moves
14 Re1 loss in 2 half-moves
15 Re2 loss in 2 half-moves
16 Re3 loss in 2 half-moves
17 Re5 loss in 2 half-moves
18 Rf4 loss in 2 half-moves
19 Rg4 loss in 2 half-moves
20 Rh4 loss in 2 half-moves
21 Ke6 loss in 1 half-moves
22 Ke7 loss in 1 half-moves