Stefan Witkowski
type: Person
description: chess player (1931–2007)
birth date: 1931-09-27
death date: 2007-10-22
birth place: Łódź
death place: Warsaw
nationality: Poland
has occupation: chess player
additional property: PropertyValue
  property ID: P18
  value: Stefan Witkowski 1991.jpg
additional property: PropertyValue
  property ID: P19
  value: Łódź
additional property: PropertyValue
  property ID: P20
  value: Warsaw
additional property: PropertyValue
  property ID: P21
  value: male
additional property: PropertyValue
  property ID: P27
  value: Poland
additional property: PropertyValue
  property ID: P31
  value: human
additional property: PropertyValue
  property ID: P106
  value: chess player
additional property: PropertyValue
  property ID: P213
  value: 000000011255739X
additional property: PropertyValue
  property ID: P214
  value: 164059389
additional property: PropertyValue
  property ID: P268
  value: 170284070
additional property: PropertyValue
  property ID: P373
  value: Stefan Witkowski
additional property: PropertyValue
  property ID: P569
  value: September 27, 1931
additional property: PropertyValue
  property ID: P570
  value: October 22, 2007
additional property: PropertyValue
  property ID: P641
  value: chess
additional property: PropertyValue
  property ID: P646
  value: /m/010lql1b
additional property: PropertyValue
  property ID: P734
  value: Witkowski
additional property: PropertyValue
  property ID: P735
  value: Stefan
additional property: PropertyValue
  property ID: P1006
  value: 075063867
additional property: PropertyValue
  property ID: P1087
  value: +2335
additional property: PropertyValue
  property ID: P1087
  value: +2178
additional property: PropertyValue
  property ID: P1087
  value: +2178
additional property: PropertyValue
  property ID: P1207
  value: n2005127727
additional property: PropertyValue
  property ID: P1344
  value: 13th Chess Olympiad
additional property: PropertyValue
  property ID: P1412
  value: Polish
additional property: PropertyValue
  property ID: P1532
  value: Poland
additional property: PropertyValue
  property ID: P1665
  value: 19654
additional property: PropertyValue
  property ID: P1889
  value: Stefan Witkowski
additional property: PropertyValue
  property ID: P2962
  value: International Master
additional property: PropertyValue
  property ID: P3314
  value: Stefan_Witkowski
additional property: PropertyValue
  property ID: P3315
  value: 248023
confidence:
  popularity graph score:
    score: 0.006
    score pct: 1
    tier: long_tail
    components:
      sitelinks: 7
      sitelinks norm: 0.017
      unique citations: 3
      unique citations norm: 0.001
      monthly pageviews: 17
      monthly pageviews norm: 0.0
  sitelinks: 7
  unique citations: 3
  monthly pageviews: 17
  yearly pageviews: 24
  pageview trend:
    m: 2026-08
    v: 17
  pageview trend:
    m: 2026-07
    v: 1
  pageview trend:
    m: 2026-06
    v: 2
  pageview trend:
    m: 2026-05
    v: 1
  pageview trend:
    m: 2026-04
    v: 3
  popularity:
    sitelinks: 7
    max: 423
    pct: 1.7
  tier: long_tail
claims:
  P18:
    value: Stefan Witkowski 1991.jpg
    source count: 1
    confidence: 0.2
  P19:
    value: Q580
    source count: 1
    confidence: 0.2
    value label: Łódź
  P20:
    value: Q270
    source count: 1
    confidence: 0.2
    value label: Warsaw
  P21:
    value: Q6581097
    source count: 0
    confidence: 0.0
    value label: male
  P27:
    value: Q36
    source count: 0
    confidence: 0.0
    value label: Poland
  P31:
    value: Q5
    source count: 1
    confidence: 0.2
    value label: human
  P106:
    value: Q10873124
    source count: 1
    confidence: 0.2
    value label: chess player
  P213:
    value: 000000011255739X
    source count: 0
    confidence: 0.0
  P214:
    value: 164059389
    source count: 1
    confidence: 0.2
  P268:
    value: 170284070
    source count: 0
    confidence: 0.0
  P373:
    value: Stefan Witkowski
    source count: 0
    confidence: 0.0
  P569:
    value: +1931-09-27T00:00:00Z
    source count: 1
    confidence: 0.2
  P570:
    value: +2007-10-22T00:00:00Z
    source count: 1
    confidence: 0.2
  P641:
    value: Q718
    source count: 0
    confidence: 0.0
    value label: chess
  P646:
    value: /m/010lql1b
    source count: 0
    confidence: 0.0

value: Q27869197
source count: 0
confidence: 0.0
value label: Witkowski

value: Q4927128
source count: 0
confidence: 0.0
value label: Stefan

value: 075063867
source count: 1
confidence: 0.2

value:
  amount: +2335
source count: 1
confidence: 0.2
qualifiers:
  P585: +1972-07-01T00:00:00Z

value:
  amount: +2178
source count: 1
confidence: 0.2
qualifiers:
  P585: +2007-01-01T00:00:00Z

value:
  amount: +2178
source count: 1
confidence: 0.2
qualifiers:
  P585: +2007-04-01T00:00:00Z

value:
  amount: +2178
source count: 1
confidence: 0.2
qualifiers:
  P585: +2007-07-01T00:00:00Z

value:
  amount: +2178
source count: 1
confidence: 0.2
qualifiers:
  P585: +2007-10-01T00:00:00Z

value: n2005127727
source count: 1
confidence: 0.2

value: Q695884
source count: 1
confidence: 0.2
value label: 13th Chess Olympiad

value: Q809
source count: 0
confidence: 0.0
value label: Polish

value: Q36
source count: 0
confidence: 0.0
value label: Poland

value: 19654
source count: 1
confidence: 0.2

value: Q9345430
source count: 1
confidence: 0.2
value label: Stefan Witkowski

value: Q752119
source count: 0
confidence: 0.0
value label: International Master
qualifiers:
  P580: +1977-00-00T00:00:00Z

value: Stefan_Witkowski
source count: 1
confidence: 0.2

value: 248023
source count: 0
confidence: 0.0

value: 1867676
source count: 0
confidence: 0.0

value: 1nv5rt1h
source count: 1
confidence: 0.2

value: 9810537795305606
source count: 0
confidence: 0.0

value: E39PBJyGXHmKHGqtvqk6QKWdQq
source count: 1
confidence: 0.2

source: Virtual International Authority File
stated in qid: Q54919
retrieved: 2015-08-20

source: OlimpBase
stated in qid: Q631396
retrieved: 2021-02-28

source: ratings.fide.com
stated in qid: Q27038151
retrieved: 2021-02-28

wikidata id: Q4112418
domain: human
level: standard
html url: https://4ort.xyz/entity/stefan-witkowski-q4112418
markdown url: https://4ort.xyz/entity/stefan-witkowski-q4112418.md
facts url summary: https://4ort.xyz/entity/stefan-witkowski-q4112418/facts.json
facts url standard: https://4ort.xyz/entity/stefan-witkowski-q4112418/facts.json
facts url full: https://4ort.xyz/entity/stefan-witkowski-q4112418/facts.json
data source: Wikidata (CC0 / public domain)
license: https://creativecommons.org/publicdomain/zero/1.0/
api version: v1
served at: 2026-08-27T18:38:09.280999Z
entity updated at: 2026-04-10T23:23:29.690206+00:00Z
entity created at: 2026-04-10T23:23:29.690206+00:00Z