Tournament information
- Dates
- Aug 28, 2026 to Sep 10, 2026
- Location
- Van Oosten de Bruijnstraat 60, Haarlem, Netherlands
- Time control
- Time control TBA
- Organizer
- ChessView Agent Publisher
- Source
- SchaakKalender.nl
- Contact
- TBA
Overview
KC Open
Van Oosten de Bruijnstraat 60, Haarlem, NetherlandsTime control TBA
Event details will be published by the organizer.
View tournament metadatapartial
KC Open is publicly listed for 2026-08-28 to 2026-09-10 in Haarlem, Netherlands.
Format
- System
- Swiss
- Sections
- Senior
- Speed Label
- Normaalschaak
- Fide Rated
- No
- National Rated
- Yes
Registration
- Status
- source-linked
- Url
- https://kennemercombinatie.nl/kc-open/
- Fee Text
- 25 euro
Logistics
- Venue
- Van Oosten de Bruijnstraat 60, Haarlem
- Address
- Van Oosten de Bruijnstraat 60
- City
- Haarlem
- Country
- Netherlands
- Latitude
- 52.3885317
- Longitude
- 4.6388048
- Coordinates
- 4.6388048; 52.3885317
- Coordinate Source
- nominatim
Schedule
- Round 1
- Date: 2026-08-28 | End Date: 2026-09-10
Player field
- Sections
- Senior
Source audit
- Authority
- platform
- Access Class
- undocumented_json
- Source Slug
- schaakkalender
- Owner
- connector-pipeline
- Region Group
- global
- Authorization Status
- public-reviewed
- Adapter Version
- 1
- Identity Strategy
- source-original-id
- Publication Mode
- active
- Urls Visited
- https://schaakkalender.nl/events/list.json?page=1; https://schaakkalender.nl/events/view/9046
- Captured At
- 2026-07-28T16:01:01.925Z
- Extraction Status
- structured public facts captured
- Confidence
- 0.88
- Copyright Notes
- Stored normalized facts, URLs, hashes, and a short evidence excerpt only; no raw response, full page, document, standings, pairings, or player list retained.
- Field Provenance
- Title: Evidence Ref: connector-schaakkalender-schaakkalender-9046 | Confidence: 0.88 | Start Date: Evidence Ref: connector-schaakkalender-schaakkalender-9046 | Confidence: 0.88 | End Date: Evidence Ref: connector-schaakkalender-schaakkalender-9046 | Confidence: 0.88 | Country: Evidence Ref: connector-schaakkalender-schaakkalender-9046 | Confidence: 0.88 | City: Evidence Ref: connector-schaakkalender-schaakkalender-9046 | Confidence: 0.88 | Venue: Evidence Ref: connector-schaakkalender-schaakkalender-9046 | Confidence: 0.88 | Time Control: Evidence Ref: connector-schaakkalender-schaakkalender-9046 | Confidence: 0.88 | Rating Type: Evidence Ref: connector-schaakkalender-schaakkalender-9046 | Confidence: 0.88
- Review Evidence
- Review Method: codex_model | Model: gpt-5.6-sol | Task Id: chessview-tournament-review-drainer | Prompt Hash: sha256:9a88fc8f207c4b23520f8d4063ea47fa943447ea6755fd18344a9fda490169db | Started At: 2026-07-28T17:46:58.279Z | Completed At: 2026-07-28T17:56:28.254Z | Triage Version: v2 | Candidate Count: 200 | Claim Hash: sha256:b318f72846ddcaa29e319951fae7f6cda77d1cd81bc085732cfe9ba910eab428 | Global Family Index Reviewed: Yes | Global Family Count: 1828 | Global Source Key Count: 2523 | Approved Corpus Count: 6739 | Database Write Attempted: No | Review Notes: Inspected all 200 candidates in the immutable claim against the 1,828-family global index using exact source identities, cross-source date/location checks, fuzzy and multilingual titles, recurring editions, material schedule changes, and companion sections. Rejected unchanged identities, already-started events, indexed families, age/rating/round fragments, and degraded refreshes. Consolidated Arad A/B, both Malovăț observations, and Mar de Ajó classical/blitz. Approved novel future OTB families with complete retained core facts and three authoritative material schedule updates; unresolved Egypt municipality and Panama end-date conflicts remain quarantined.
Other facts
- SchaakKalender event id
- 9046
- short source description
- Het KC Open is een 7-rondig Zwitsers toernooi met klassiek speeltempo dat wordt gespeeld op 7 achtereenvolgende vrijdagavonden en meetelt voor de KNSB-rating. Meer informatie en...