These Help pages can be downloaded here with the Winning Bridge Shareware game for Microsoft Windows 98, ME, 2000 and XP.
Opening Leads
The first lead (opening lead) is always made by the player to the left of the declarer.
Winning Bridge chooses its opening lead from the following rules:
In a suit contract when holding trumps: lead a singleton or the high card (except a king, queen or jack) from a doubleton (but not from Ace Queen).
The top card from a continuous sequence of three cards, the highest of which is an honour.
The highest card in Partner's bid suit.
The trump suit if it has been supported and it does not expose a trump honour.
The fourth highest card in the longest and strongest suit.