Game guide · JIUDINGST
Understand the basics of Gin Score Calculator
Take a moment to read the table. Calculate a Gin hand score from the knocker’s and defender’s final deadwood totals. Take the next action only when the current step is clear. Work at your own pace. Enter the knocker’s deadwood from 0 to 10. Zero means Gin. Take the next action only when the current step is clear.
Fixed house bonuses of 25. It does not include line bonuses or a match-end bonus.
One thing to notice as you play
A clear plan starts with the current position. Enter the defender’s deadwood after any legal layoffs; against Gin no layoff is allowed. Take the next action only when the current step is clear.
Your objective
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. Use the rule sheet as a reference.
Step by step
- 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. Check the relevant controls before continuing. Begin with the objective.
An example to follow
A knock of 8 against 5 is an undercut: the defender receives 28. Gin against 18 earns the knocker 43. The same rule applies on a phone and on a computer.
Avoid this misunderstanding
Begin with the objective. Enter post-layoff values. This arithmetic tool does not choose card groupings from card images. Return to the explanation when a decision is unclear.
Questions about this game
What is the aim?
Calculate a Gin hand score from the knocker’s and defender’s final deadwood totals. Take a moment to read the table. Take the next action only when the current step is clear.
How do I use the controls?
Use the two numeric fields, then Calculate score. This tool uses whole numbers. Keep the active rule in mind. Check the relevant controls before continuing.
Which format is available?
Fixed house bonuses of 25. It does not include line bonuses or a match-end bonus. Before making a move, check the cards in view. 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. Work at your own pace. Take the next action only when the current step is clear.
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. Use the rule sheet as a reference. Return to the explanation when a decision is unclear.
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. Take a moment to read the table. Check the relevant controls before continuing.
Does it automatically lay off cards?
No. Enter the defender’s final value after layoffs. The playable Gin table performs card-based layoff analysis. Use the rule sheet as a reference. 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. Take a moment to read the table. Return to the explanation when a decision is unclear.
Are these scores cash or prizes?
No. Points are used only for free play and practice. There are no deposits, cash stakes or withdrawals. Work at your own pace. Check the relevant controls before continuing.
