than 16), any distribution 1 is positive (16+), at least four cards in hearts 1 is positive (16+), at least four cards in spades 1NT 16-20, balanced hand, etc. Other bids are similar to Precision Club or related systems of the partnership's choosing Responses to 1 1 forcing, natural, asks opener to show his hand, any new suit on the next round is forcing 1 forcing, natural, asks opener to show his hand, any new suit on the next round is forcing 1NT negative, responder is ready to pass next bid of opener 2 artificial, forcing, 21+, game prospects, no 4-card major, will support a major bid with 3 cards on next round Other responses are up to the partnership References Link <== That link is dead. Sadly, the bridgeguys domain has been taken over by a commercial outfit and very little of their original work survives on the new site. Use the Archive link (below) or try: https://bridge-tips.co.il/wp-content/uploads/2012/05/ZarPoints2003BOOK.pdf for the complete Zar Points book. Archive link Les Principes ZAR (in French) Contract bridge bidding