Game guide · ZZQHMY
Gin Score Calculator: a guide for your next round
For a calm first round, focus on one decision. Calculate a Gin hand score from the knocker’s and defender’s final deadwood totals. Use another round to revisit a decision. Keep the active rule in mind. 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.
Bring this focus to a round
Take a moment to read the table. Enter the defender’s deadwood after any legal layoffs; against Gin no layoff is allowed. Use another round to revisit a decision.
Aim for this result
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. Treat this as a chance to practise one rule.
A walkthrough of the rules
- 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 your actions work
Use the two numeric fields, then Calculate score. This tool uses whole numbers. Take the next action only when the current step is clear. Begin with the objective.
Learn from a sample situation
A knock of 8 against 5 is an undercut: the defender receives 28. Gin against 18 earns the knocker 43. Take the next action only when the current step is clear.
Pay attention to this rule
Look at the complete hand before deciding. Enter post-layoff values. This arithmetic tool does not choose card groupings from card images. Check the relevant controls before continuing.
Clarifying the way this game works
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. Begin with the objective. 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. Work at your own pace. Take the next action only when the current step is clear.
What should I check before a move?
Enter post-layoff values. This arithmetic tool does not choose card groupings from card images. Treat this as a chance to practise one rule. Check the relevant controls before continuing.
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. Take a moment to read the table. Check the relevant controls before continuing.
How is a tie scored?
A non-Gin deadwood tie is an undercut, so the defender receives 25 points. Work at your own pace. 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. Look at the complete hand before deciding. Take the next action only when the current step is clear.
Does it automatically lay off cards?
No. Enter the defender’s final value after layoffs. The playable Gin table performs card-based layoff analysis. Take a moment to read the table. Return to the explanation when a decision is unclear.
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. The same rule applies on a phone and on a computer.
Are these scores cash or prizes?
No. Points are used only for free play and practice. There are no deposits, cash stakes or withdrawals. Use the rule sheet as a reference. The same rule applies on a phone and on a computer.