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

EGTB: win in 1 half-moves

# move score
1 Rbxb8 win in 3 half-moves
2 Nxb8 loss in 2 half-moves
3 Rhxb8 loss in 2 half-moves
4 Rxh4 loss in 2 half-moves