Three single twenties
From 501, S20 → S20 → S20 subtracts 60, leaving 441. Three triple twenties instead subtract 180, leaving 321.
Darts scorekeeper
One shared device, two players and a clear record of every visit.
Darts scores and visit controls
Checking saved leg
Leg options and backups
Visit history
Dart by dart
Enter the visit in throwing order
Name both players, agree who starts and choose Start leg. The current player and remaining score appear above the three ordered dart slots. This scorekeeper records the outcomes you judge at the board; it cannot observe a throw or resolve a physical dispute.
Choose the outcome. Select Single, Double or Triple, then a number from 1 to 20. Single is selected again after every dart. Outer bull 25, Bull 50 and Miss / 0 have separate controls.
Keep the order. The dart that busts or finishes the visit matters. Select an occupied slot to replace that dart, or remove the last dart. Empty means not entered; Miss records an actual non-scoring dart.
Review the preview. Draft selections do not change the leg score. Check the resulting remainder, bust or legal finish before saving. A bust or checkout stops further entry for that visit.
Choose Save visit. This records the visit once. For an already-ended, non-terminal visit with one or two darts, explicitly confirm that it ended at that count. Cancel to enter another dart; missing slots are never filled with invented misses.
501 with double-out
Subtract each dart until the visit ends
Each player starts at 501. Straight-in means no opening double is required. This tool keeps one leg for two players.
A visit contains at most three darts. Singles score the numbered value from 1 to 20, doubles twice it and triples three times it. Outer bull scores 25, inner bull 50 and a non-scoring dart 0.
Going below zero, leaving 1, or reaching zero without a double busts the whole visit. The score returns to its value at the start of that visit.
Exactly zero on a double ends the leg immediately. Inner bull 50 counts as double 25 for a finish. Darts after the finishing or bust dart do not count.
Zero on a single is a bust
From 40, S20 leaves 20. A second S20 reaches zero on a single, so the whole visit busts and the score returns to 40. From 2, S1 leaves 1 and also busts, restoring 2.
The finishing dart decides
From 32, S16 leaves 16 and D8 reaches zero legally. The leg ends on the second dart; no third dart is added. From 50, an inner bull is a legal finishing double.
Correct the record
Replay can change an earlier result
CountNook lets you correct any retained, non-retracted visit. An earlier winner excludes later visits without deleting them. Another correction can reactivate eligible visits. A formerly terminal short visit that becomes incomplete pauses replay for explicit review.
Open Edit visit, change actual dart outcomes and review the resulting score, winner and affected history before applying the correction. Player identity and visit order stay fixed. A correction may create a bust or remove one. Raw outcomes remain visible even when a terminal dart means later outcomes in that record are not evaluated.
Suppose an earlier correction changes the start of S20 → D10 from 40 to 48. The former checkout now leaves 8 after only two darts. Replay pauses at that visit; later records are pending review. Enter the actual missing dart or explicitly confirm that the visit had already ended after two darts, then review the replayed result.
Only the latest non-retracted visit can be retracted, and its record remains visible. Clear a draft before retracting. There is no middle-history deletion or Restore button. A draft retained during a correction stays assigned to its original player; review it when that player is eligible, or explicitly clear it.
These flexible corrections, short-visit confirmations and retained-history controls are CountNook product choices for personal records. They do not enforce the DRA's narrower competition correction and finality procedures. Finished legs remain correctable here.
Keep a copy
Browser saving, backups and retained slots
CountNook saves one current Darts leg in this browser, with up to 200 retained visit records. Retracted and excluded visits still use slots. JSON backs up the supported saved state; CSV exports readable visit history.
Check the saving status
A recorded visit is not necessarily a durable browser save. If saving fails, use Retry save; do not enter the visit again. Recovery distinguishes this tab's retained changes from the saved copy. Export JSON before discarding changes you need. Clearing site data, private browsing or browser settings can remove records.
One writer at a time
A second tab is read-only until you explicitly take over. Editors opened before a takeover or replacement must be reopened. There are no accounts, cloud sync or simultaneous device scoring. Browser-local data does not guarantee offline availability.
JSON restores; CSV explains
JSON includes names, starter, draft and all retained visits, including retracted or excluded records. Import validates and previews a whole-leg replacement; it cannot merge legs or replace another tool's workspace. CSV labels busts, retracted visits, exclusions and unresolved review without implying that their raw totals contributed to the final score.
At the retained-history limit
At 200 retained records, export the leg and choose New leg before recording more visits. Corrections and exports remain available. Retraction does not free a slot. New leg replaces the current scorecard and draft; keep a JSON backup first. Names stay editable and the starter must be selected again.
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