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Know the goal in Gin Score Calculator

Give this approach a try

Work at your own pace. Enter the defender’s deadwood after any legal layoffs; against Gin no layoff is allowed. Take the next action only when the current step is clear.

The goal to keep in mind

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. Take a moment to read the table.

From the start of a round

  1. Enter the knocker’s deadwood from 0 to 10. Zero means Gin.
  2. Enter the defender’s deadwood after any legal layoffs; against Gin no layoff is allowed.
  3. Calculate the result. Gin scores 25 plus defender deadwood; an undercut scores 25 plus the difference.
  4. 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. Look at the complete hand before deciding.

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. Use another round to revisit a decision.

Keep this in mind

Use the rule sheet as a reference. Enter post-layoff values. This arithmetic tool does not choose card groupings from card images. Take the next action only when the current step is clear.

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. Before making a move, check the cards in view. The same rule applies on a phone and on a computer.

How do I use the controls?

Use the two numeric fields, then Calculate score. This tool uses whole numbers. Keep the active rule in mind. 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. 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. Work at your own pace. 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. Begin with the objective. Return to the explanation when a decision is unclear.

How is a tie scored?

A non-Gin deadwood tie is an undercut, so the defender receives 25 points. A clear plan starts with the current position. Check the relevant controls before continuing.

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. 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. For a calm first round, focus on one decision. 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. Begin with the objective. Check the relevant controls before continuing.

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. Check the relevant controls before continuing.