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

EGTB: win in 4 half-moves

# move score
1 Rb4 win in 3 half-moves
2 Re1 draw
3 Re2 draw
4 Re3 draw
5 Re8 draw
6 Rf4 draw
7 Rg4 draw
8 Rh4 draw
9 Ra4 loss in 2 half-moves
10 Rc4 loss in 2 half-moves
11 Rd4 loss in 2 half-moves
12 Re5 loss in 2 half-moves
13 Re6 loss in 2 half-moves
14 Re7 loss in 2 half-moves