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 Kf3 draw
3 Kf4 draw
4 Kg3 draw
5 Re1 draw
6 Re2 draw
7 Re3 draw
8 Re5 draw
9 Re8 draw
10 Kf5 loss in 2 half-moves
11 Kg5 loss in 2 half-moves
12 Kh3 loss in 2 half-moves
13 Kh4 loss in 2 half-moves
14 Kh5 loss in 2 half-moves
15 Ra4 loss in 2 half-moves
16 Rc4 loss in 2 half-moves
17 Rd4 loss in 2 half-moves
18 Re6 loss in 2 half-moves
19 Rf4 loss in 2 half-moves
20 Re7 loss in 1 half-moves