Game guide · ZGHEHE
Gin Score Calculator: from controls to your first round
A clear plan starts with the current position. 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. Treat this as a chance to practise one rule. 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.
A small practice goal
Take a moment to read the table. Enter the defender’s deadwood after any legal layoffs; against Gin no layoff is allowed. The same rule applies on a phone and on a computer.
What you need to achieve
Calculate a Gin hand score from the knocker’s and defender’s final deadwood totals. Use another round to revisit a decision. Look at the complete hand before deciding.
The playing sequence
- 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.
Making selections and moves
Use the two numeric fields, then Calculate score. This tool uses whole numbers. The same rule applies on a phone and on a computer. Work at your own pace.
See how the rules apply
A knock of 8 against 5 is an undercut: the defender receives 28. Gin against 18 earns the knocker 43. Check the relevant controls before continuing.
Keep this in mind
A clear plan starts with the current position. Enter post-layoff values. This arithmetic tool does not choose card groupings from card images. The same rule applies on a phone and on a computer.
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. Work at your own pace. 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. Look at the complete hand before deciding. 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. Begin with the objective. The same rule applies on a phone and on a computer.
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. 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. Take a moment to read the table. 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. Before making a move, check the cards in view. Return to the explanation when a decision is unclear.
Can I use other Gin bonus values?
This calculator uses the same 25/25 values as this site’s Gin table. Use the rule sheet as a reference. 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. Work at your own pace. The same rule applies on a phone and on a computer.
Do I need an account or an app?
No. Open the page in a JavaScript-enabled browser. No player account or APK is needed. For a calm first round, focus on one decision. 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. Before making a move, check the cards in view. Return to the explanation when a decision is unclear.
