Game guide · MY2171
Making your first moves in 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. Take the next action only when the current step is clear. Use the rule sheet as a reference. Enter the knocker’s deadwood from 0 to 10. Zero means Gin. Use another round to revisit a decision.
Fixed house bonuses of 25. It does not include line bonuses or a match-end bonus.
Practice with a purpose
For a calm first round, focus on one decision. 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. Look at the complete hand before deciding.
Making your moves
- 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. Take the next action only when the current step is clear. Take a moment to read the table.
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.
Check this before moving on
A clear plan starts with the current position. Enter post-layoff values. This arithmetic tool does not choose card groupings from card images. Check the relevant controls before continuing.
If you are unsure
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. For a calm first round, focus on one decision. 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. Before making a move, check the cards in view. Return to the explanation when a decision is unclear.
What should I check before a move?
Enter post-layoff values. This arithmetic tool does not choose card groupings from card images. Use the rule sheet as a reference. The same rule applies on a phone and on a computer.
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. The same rule applies on a phone and on a computer.
How is a tie scored?
A non-Gin deadwood tie is an undercut, so the defender receives 25 points. For a calm first round, focus on one decision. Take the next action only when the current step is clear.
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. 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. Look at the complete hand before deciding. Check the relevant controls before continuing.
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. Take the next action only when the current step is clear.
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. Use another round to revisit a decision.