Game guide · PYZSB
How to play Gin Score Calculator
A clear plan starts with the current position. Calculate a Gin hand score from the knocker’s and defender’s final deadwood totals. The same rule applies on a phone and on a computer. Look at the complete hand before deciding. Enter the knocker’s deadwood from 0 to 10. Zero means Gin. The same rule applies on a phone and on a computer.
Fixed house bonuses of 25. It does not include line bonuses or a match-end bonus.
Give this approach a try
A clear plan starts with the current position. Enter the defender’s deadwood after any legal layoffs; against Gin no layoff is allowed. Use another round to revisit a decision.
What you are aiming for
Calculate a Gin hand score from the knocker’s and defender’s final deadwood totals. Check the relevant controls before continuing. Keep the active rule in mind.
Start here and follow along
- Enter the knocker’s deadwood from 0 to 10. Zero means Gin.
- Enter the defender’s deadwood after any legal layoffs; against Gin no layoff is allowed.
- Calculate the result. Gin scores 25 plus defender deadwood; an undercut scores 25 plus the difference.
- For an ordinary successful knock, the knocker scores only the positive difference.
How to interact with the game
Use the two numeric fields, then Calculate score. This tool uses whole numbers. The same rule applies on a phone and on a computer. Keep the active rule in mind.
Follow the example
A knock of 8 against 5 is an undercut: the defender receives 28. Gin against 18 earns the knocker 43. Use another round to revisit a decision.
Where a round can go wrong
Take a moment to read the table. Enter post-layoff values. This arithmetic tool does not choose card groupings from card images. Use another round to revisit a decision.
Read these answers for extra help
What is the aim?
Calculate a Gin hand score from the knocker’s and defender’s final deadwood totals. Keep the active rule in mind. Use another round to revisit a decision.
How do I use the controls?
Use the two numeric fields, then Calculate score. This tool uses whole numbers. Take a moment to read the table. Return to the explanation when a decision is unclear.
Which format is available?
Fixed house bonuses of 25. It does not include line bonuses or a match-end bonus. Begin with the objective. Check the relevant controls before continuing.
What should I check before a move?
Enter post-layoff values. This arithmetic tool does not choose card groupings from card images. Before making a move, check the cards in view. Return to the explanation when a decision is unclear.
Can you give an example?
A knock of 8 against 5 is an undercut: the defender receives 28. Gin against 18 earns the knocker 43. Keep the active rule in mind. Use another round to revisit a decision.
How is a tie scored?
A non-Gin deadwood tie is an undercut, so the defender receives 25 points. Use the rule sheet as a reference. Use another round to revisit a decision.
Can I use other Gin bonus values?
This calculator uses the same 25/25 values as this site’s Gin table. Before making a move, check the cards in view. Return to the explanation when a decision is unclear.
Does it automatically lay off cards?
No. Enter the defender’s final value after layoffs. The playable Gin table performs card-based layoff analysis. Work at your own pace. Use another round to revisit a decision.
Do I need an account or an app?
No. Open the page in a JavaScript-enabled browser. No player account or APK is needed. Keep the active rule in mind. Use another round to revisit a decision.
Are these scores cash or prizes?
No. Points are used only for free play and practice. There are no deposits, cash stakes or withdrawals. Begin with the objective. The same rule applies on a phone and on a computer.
