Property talk:P12553

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‎ECF rating code
identifier for a chess player issued by the English Chess Federation

Represents	English Chess Federation (Q528935)
Associated item	English Chess Federation (Q528935)
Data type	External identifier
Domain	human (Q5)
Allowed values	^[1-9]\d{5}[A-Z]$
Example	Zoe Varney (Q109399040) → 280882B Michael Adams (Q299636) → 105483B Katarzyna Toma (Q11737083) → 305272C
Source	https://www.ecfrating.org.uk/v2/new/list_players.php
Formatter URL	https://www.ecfrating.org.uk/v2/new/player.php?ECF_code=$1
Related to country	United Kingdom (Q145) (See 327 others) (England (Q21))
See also	ruchess ID (P4994), USCF player ID (P3558)
Lists	Items with the most statements of this property Count of items by number of statements (chart) Items with the most statements Items with the fewest statements Count of items by number of sitelinks (chart) Items with the most sitelinks Items with the most sitelinks, but no link to one Wikipedia (sample: Welsh Wikipedia, cywiki) Items with the fewest sitelinks Most linked wikis Items with the most identifier properties Items with no other external identifier Items with no other statements Most recently created items Items with novalue claims Items with unknown value claims Usage history (total) Usage history (main statement) Map of people by place values: place of birth educated at work location residence place of death place of burial January 1st dates People with date of birth on January 1 People with date of death on January 1 People with both dates on January 1 Database reports/Constraint violations/P12553 Map Random list
Proposal discussion	Proposal discussion
Current uses	Total 19 Main statement 16 84.2% of uses Qualifier 3 15.8% of uses
Search for values

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Single value: this property generally contains a single value. (Help)

Exceptions are possible as rare values may exist. Exceptions can be specified using exception to constraint (P2303).
List of violations of this constraint: Database reports/Constraint violations/P12553#Single value, SPARQL

Distinct values: this property likely contains a value that is different from all other items. (Help)

Exceptions are possible as rare values may exist. Exceptions can be specified using exception to constraint (P2303).
List of violations of this constraint: Database reports/Constraint violations/P12553#Unique value, SPARQL (every item), SPARQL (by value)

Format “^[1-9]\d{5}[A-Z]$”: value must be formatted using this pattern (PCRE syntax). (Help)

Exceptions are possible as rare values may exist. Exceptions can be specified using exception to constraint (P2303).
List of violations of this constraint: Database reports/Constraint violations/P12553#Format, SPARQL

Type “human (Q5)”: item must contain property “instance of (P31)” with classes “human (Q5)” or their subclasses (defined using subclass of (P279)). (Help)

Exceptions are possible as rare values may exist. Exceptions can be specified using exception to constraint (P2303).
List of violations of this constraint: Database reports/Constraint violations/P12553#Type Q5, SPARQL

Item “sex or gender (P21): male (Q6581097), female (Q6581072)”: Items with this property should also have “sex or gender (P21): male (Q6581097), female (Q6581072)”. (Help)

Exceptions are possible as rare values may exist. Exceptions can be specified using exception to constraint (P2303).
List of violations of this constraint: Database reports/Constraint violations/P12553#Item P21, search

Item “occupation (P106): chess player (Q10873124)”: Items with this property should also have “occupation (P106): chess player (Q10873124)”. (Help)

Exceptions are possible as rare values may exist. Exceptions can be specified using exception to constraint (P2303).
List of violations of this constraint: Database reports/Constraint violations/P12553#Item P106, search, SPARQL

Item “sport (P641): chess (Q718)”: Items with this property should also have “sport (P641): chess (Q718)”. (Help)

Exceptions are possible as rare values may exist. Exceptions can be specified using exception to constraint (P2303).
List of violations of this constraint: Database reports/Constraint violations/P12553#Item P641, search, SPARQL

Allowed entity types are Wikibase item (Q29934200): the property may only be used on a certain entity type (Help)

Exceptions are possible as rare values may exist. Exceptions can be specified using exception to constraint (P2303).
List of violations of this constraint: Database reports/Constraint violations/P12553#Entity types

Scope is as main value (Q54828448): the property must be used by specified way only (Help)

Exceptions are possible as rare values may exist. Exceptions can be specified using exception to constraint (P2303).
List of violations of this constraint: Database reports/Constraint violations/P12553#Scope, SPARQL