Make one prediction
Read the cards and question before selecting an answer. For a deadwood question, try marking a complete arrangement on paper. For a rule question, name the condition that makes your answer true.
Use the explanation
After answering, the session locks that question and explains the result. Read it even when your answer was right. A correct guess and a correct method are different learning outcomes.
Review the session
At the end, review all six questions with your answers and the explanations. Choose one error to describe in a sentence. Then restart with a new order if you want another short session.
What stays private
The session is temporary page memory. It is not an account, a certificate, a competitive ranking or a record of your playing strength. Reloading starts again. The separate scorebook stores only the match details you explicitly enter in your browser.