Game guide · SXSMQZJ
An introduction to playing Gin Score Calculator
Work at your own pace. Calculate a Gin hand score from the knocker’s and defender’s final deadwood totals. Check the relevant controls before continuing. Use the rule sheet as a reference. Enter the knocker’s deadwood from 0 to 10. Zero means Gin. Return to the explanation when a decision is unclear.
Fixed house bonuses of 25. It does not include line bonuses or a match-end bonus.
Take a closer look while playing
Use the rule sheet as a reference. Enter the defender’s deadwood after any legal layoffs; against Gin no layoff is allowed. Return to the explanation when a decision is unclear.
The goal to keep in mind
Calculate a Gin hand score from the knocker’s and defender’s final deadwood totals. Return to the explanation when a decision is unclear. A clear plan starts with the current position.
From the start of a round
- 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.
Keyboard and screen controls
Use the two numeric fields, then Calculate score. This tool uses whole numbers. Use another round to revisit a decision. For a calm first round, focus on one decision.
An example before you play
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.
Check this before moving on
For a calm first round, focus on one decision. Enter post-layoff values. This arithmetic tool does not choose card groupings from card images. Check the relevant controls before continuing.
Answers about the rules and controls
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. 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. A clear plan starts with the current position. 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. Look at the complete hand before deciding. 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. Keep the active rule in mind. Return to the explanation when a decision is unclear.
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. Before making a move, check the cards in view. 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. Use the rule sheet as a reference. 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. Use another round to revisit a decision.
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. 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. A clear plan starts with the current position. 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. Work at your own pace. Check the relevant controls before continuing.
