I had the rules in about page. It seems that most of you didn't find them, so they where in really bad place. I made additional page to compensationtable.com about are rules and examples, how to use this table. Lets say these who made 4H had 25 HCPs and 9-card heart fit and are expected to get 390 points. But they got 420 so it is 1 IMP for them. You can find out :P . In Estonia, the older version of this table was used for money bridge. Stakes where about 1 IMP = 1$. I never heard the term Russian Scoring before. Thanks for that information. The other big advantage is that Russian Scoring is made about 20 years ago (I thought this method was forgotten). The Portable Bridge Notation, which is standard to store bridge deals in computer files, is 10 years old. So the Russian Scoring is probably based on some deals and creators experience, but my table is based on over 30 000 deals played by expert players. Before creating this table, I thought about the 20 HCPs problem. My first idea was that line with more cards in spade suit should score. My last idea was to make it as simple and fast as possible so the line how started bidding should score. Thanks for feedback, Tanel