Business-Prognosis - Version 2.1 The AI Fuzzy system for solution of risk-planning tasks, formulated on natural language. It is intended for counting the multi-step combinations, estimating the chances of success of transaction, choosing the best decision in risky and indefinite situations, when circumstances can't be totally controlled and both success and failure are possible. It is designed for every businessman who is obligated to estimate his risk, marketing experts and consultants, for education (learning strategic management), and can be used in every other risky activity. It is the new idea of software for business. It is based on know-how algorithm and has the strict mathematical basis: Decision theory, Fuzzy technology and dense Bayesian network. It is visual, very simple, easy to use and does not require any special knowledge.