Game guide · BJDHZK
Play Gin Score Calculator with the rules at hand
Treat this as a chance to practise one rule. 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. Enter the knocker’s deadwood from 0 to 10. Zero means Gin. Check the relevant controls before continuing.
Fixed house bonuses of 25. It does not include line bonuses or a match-end bonus.
Give this approach a try
Use the rule sheet as a reference. Enter the defender’s deadwood after any legal layoffs; against Gin no layoff is allowed. Check the relevant controls before continuing.
Aim for this result
Calculate a Gin hand score from the knocker’s and defender’s final deadwood totals. Return to the explanation when a decision is unclear. Keep the active rule in mind.
The order of play
- 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.
Choosing and moving on screen
Use the two numeric fields, then Calculate score. This tool uses whole numbers. Take the next action only when the current step is clear. Work at your own pace.
Try this example
A knock of 8 against 5 is an undercut: the defender receives 28. Gin against 18 earns the knocker 43. Return to the explanation when a decision is unclear.
Notice this detail
Begin with the objective. 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.
Questions that come up during play
What is the aim?
Calculate a Gin hand score from the knocker’s and defender’s final deadwood totals. Use the rule sheet as a reference. 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. Take a moment to read the table. Take the next action only when the current step is clear.
Which format is available?
Fixed house bonuses of 25. It does not include line bonuses or a match-end bonus. Treat this as a chance to practise one rule. 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. 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. Work at your own pace. 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. Treat this as a chance to practise one rule. 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. Work at your own pace. 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. Look at the complete hand before deciding. 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. Use the rule sheet as a reference. 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. Look at the complete hand before deciding. The same rule applies on a phone and on a computer.