Miyoko Watai
type: Person
description: Japanese women's chess champion, and the general secretary of the Japan Chess Association
birth date: 1945-01-08
birth place: Saitama Prefecture
nationality: Japan
spouse: Bobby Fischer
alumni of: Meiji Pharmaceutical University
has occupation: chess player
has occupation: pharmacist
additional property: PropertyValue
  property ID: P18
  value: Miyoko Watai 1980 Malta-cut.jpeg
additional property: PropertyValue
  property ID: P19
  value: Saitama Prefecture
additional property: PropertyValue
  property ID: P21
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additional property: PropertyValue
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additional property: PropertyValue
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  value: human
additional property: PropertyValue
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  value: Meiji Pharmaceutical University
additional property: PropertyValue
  property ID: P106
  value: chess player
additional property: PropertyValue
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  value: pharmacist
additional property: PropertyValue
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additional property: PropertyValue
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additional property: PropertyValue
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  value: chess
additional property: PropertyValue
  property ID: P646
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additional property: PropertyValue
  property ID: P734
  value: Watai
additional property: PropertyValue
  property ID: P735
  value: Miyoko
additional property: PropertyValue
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additional property: PropertyValue
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additional property: PropertyValue
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additional property: PropertyValue
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  value: Women's Chess Olympiad 1972
additional property: PropertyValue
  property ID: P1344
  value: Women's Chess Olympiad 1974
additional property: PropertyValue
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additional property: PropertyValue
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additional property: PropertyValue
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  value: Japan
additional property: PropertyValue
  property ID: P1665
  value: 47211
confidence:
  popularity graph score:
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    score pct: 1
    tier: long_tail
    components:
      sitelinks: 9
      sitelinks norm: 0.021
      unique citations: 3
      unique citations norm: 0.001
      monthly pageviews: 0
      monthly pageviews norm: 0.0
  sitelinks: 9
  unique citations: 3
  monthly pageviews: 0
  yearly pageviews: 2983
  pageview trend:
    m: 2026-06
    v: 2097
  pageview trend:
    m: 2026-05
    v: 5
  pageview trend:
    m: 2026-05
    v: 214
  pageview trend:
    m: 2026-05
    v: 8
  pageview trend:
    m: 2026-05
    v: 11
  pageview trend:
    m: 2026-04
    v: 6
  pageview trend:
    m: 2026-04
    v: 18
  pageview trend:
    m: 2026-04
    v: 620
  pageview trend:
    m: 2026-04
    v: 4
  popularity:
    sitelinks: 9
    max: 423
    pct: 2.1
  tier: long_tail
claims:
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    value label: Saitama Prefecture
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    value label: female
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    value label: Bobby Fischer
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    value label: Japan
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    value label: human
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    confidence: 0.2
    value label: Meiji Pharmaceutical University
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    value label: chess player
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    value label: pharmacist
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value: nm8549141
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confidence: 0.0

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value: +1945-01-08T00:00:00Z
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value label: chess

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confidence: 0.0

value: Q43454154
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value label: Watai

value: Q6884482
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confidence: 0.0
value label: Miyoko

value:
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source count: 1
confidence: 0.2
qualifiers:
  P585: +2013-04-01T00:00:00Z

value:
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source count: 1
confidence: 0.2
qualifiers:
  P585: +2014-04-01T00:00:00Z

value:
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source count: 1
confidence: 0.2
qualifiers:
  P585: +2015-04-01T00:00:00Z

value:
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confidence: 0.2
qualifiers:
  P585: +2016-04-01T00:00:00Z

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confidence: 0.2
qualifiers:
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source count: 1
confidence: 0.2
value label: Women's Chess Olympiad 1972

value: Q421884
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confidence: 0.2
value label: Women's Chess Olympiad 1974

value: Q421879
source count: 1
confidence: 0.2
value label: Women's Chess Olympiad 1976

value: Q421889
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value label: Women's Chess Olympiad 1978

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value label: Women's Chess Olympiad 1980

value: Q5287
source count: 0
confidence: 0.0
value label: Japanese

value: 7000472
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confidence: 0.2

value: Q17
source count: 1
confidence: 0.2
value label: Japan

value:
  lang: ja
  text: 渡井美代子
source count: 0
confidence: 0.0

value: 47211
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confidence: 0.2

value: わたい みよこ
source count: 1
confidence: 0.2

value: Q3314851
source count: 0
confidence: 0.0
value label: Woman International Master
qualifiers:
  P580: +1994-00-00T00:00:00Z

value: Q2859684
source count: 0
confidence: 0.0
value label: International Arbiter
qualifiers:
  P580: +1983-00-00T00:00:00Z

value: 5586030
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confidence: 0.0

value: Miyoko_Watai
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confidence: 0.0

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value: mgy028ud
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value: agent/base/151705
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value: miyoko-watai
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confidence: 0.0

value: people/miyoko-watai
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confidence: 0.0

value: 1140000791666953344
source count: 0
confidence: 0.0

source: CiNii Research
stated in qid: Q115920372
retrieved: 2023-02-12

source: ratings.fide.com
stated in qid: Q27038151
retrieved: 2016-09-21

source: OlimpBase
stated in qid: Q631396
retrieved: 2018-08-04

wikidata id: Q529393
domain: human
level: standard
html url: https://4ort.xyz/entity/miyoko-watai
markdown url: https://4ort.xyz/entity/miyoko-watai.md
facts url summary: https://4ort.xyz/entity/miyoko-watai/facts.json
facts url standard: https://4ort.xyz/entity/miyoko-watai/facts.json
facts url full: https://4ort.xyz/entity/miyoko-watai/facts.json
data source: Wikidata (CC0 / public domain)
license: https://creativecommons.org/publicdomain/zero/1.0/
api version: v1
served at: 2026-08-05T09:00:02.994735Z
entity updated at: 2026-04-10T23:14:31.573857+00:00Z
entity created at: 2026-04-10T23:14:31.573857+00:00Z