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Opening Theory

LinkedIn vs Alternatives — 2026 Repertoire

Four openings for the professional networking board. Their main lines, engine evaluations, positional strengths, and the Grandmaster's annotation — so you may choose the opening that suits your style of play.

ECO A00
💼 The Queen's Gambit
Classification: Mainline · Type: Positional · Origin: 2003 · House: Microsoft
1.d4 Profile 2.c4 Network 3.Nc3 JobBoard 4.Bg5 SalesNav 5.e3 InMail 6.Nf3 Learning 7.Rc1 ContentFeed 8.Be2 CompanyPages {The most theoretically dense opening in the repertoire. White builds a commanding centre with 1 billion+ pieces across 200+ squares. Revenue evaluation: +$15B.}
1B+
Pieces (Users)
200+
Squares
+1.5
Engine Eval
$15B+
Material
Positional Assessment: The most analysed opening in professional networking theory. 1 billion+ games played across 200+ tournament venues. White controls the centre with identity pawns, develops the employment knight (8 forks per minute), deploys the Sales Navigator bishop, opens the InMail file, castles behind Learning, and activates the content feed rook. Microsoft acquired the opening's rights in 2016 ($26.2B). Free to play; premium time controls from $29.99/mo.
Main Line Variations
ProfilesJob BoardRecruiterSales NavInMailFeedLearningPagesPremium $29.99+Recruiter $170+
♔ Grandmaster's Annotation
"The mainline. No other opening controls as many squares or deploys as many pieces this efficiently. Every repertoire should include it. But the content file is getting congested with AI-generated noise moves, and premium time controls keep increasing."
Known Traps
  • Content file congested with AI-generated noise moves
  • Engine algorithm favours players with highest move frequency
  • Premium time controls escalating ($29.99–$99.99+)
  • Organic square control declining for corporate openings
  • Game data shared with Microsoft tournament organisers
  • Requires daily play to maintain rating
ECO B00
🔍 The Fried Liver Attack
Classification: Tactical · Type: Sharp · Origin: 2004/2007 · House: Recruit
1.e4 Search 2.Nf3 Resume 3.Bc4 AIMatch 4.Ng5! SalaryData 5.Bxf7+! Reviews 6.Qf3 InterviewIntel 7.d3 QuickApply {The sharpest tactical strike. 350M+ games monthly. Zero positional play — pure calculation. Glassdoor adds 4...Kd7! revealing the opponent's weaknesses.}
350M+
Monthly Games
60+
Venues
+2.0
Tactical Eval
Free
Entry Fee
Positional Assessment: A forcing tactical sequence — no slow manoeuvring, pure calculation. Draws 350M+ monthly blitz games. The Glassdoor variation reveals the opponent's king position: employer weaknesses, salary material count, interview preparation lines. Calculate, execute, win. Free for all players.
Main Line Variations
Job SearchResumeAI MatchSalary DataReviewsInterviewsQuick ApplySponsored $
♔ Grandmaster's Annotation
"The sharpest line in the book. When the game demands employment tactics — not positional grinding — this attack wins material fastest. The Glassdoor variation exposes the weaknesses the mainline opening conceals. Zero endgame potential."
Known Traps
  • Zero positional, networking, or endgame resources
  • Glassdoor variation may contain outdated preparation
  • Sponsored pieces may obstruct natural development
  • Not suitable for long classical games
  • Game data visible to paying tournament directors
  • Cannot transpose into B2B or diplomatic positions
ECO C00
🚀 The Sicilian Dragon
Classification: Asymmetric · Type: Counter-Attack · Origin: 2010 · Reclassified: 2022
1.e4 c5! Startup 2.Nf3 d6 Equity 3.d4 cxd4 SalaryOpen 4.Nxd4 Nf6 FounderDM 5.Nc3 g6 Remote {The counter-attacking line for startup positions. 8M+ practitioners connected to 150K+ variations. Every move displays its material value openly — unique in opening theory.}
8M+
Players
150K+
Variations
= +
Eval (Niche)
Equity
Visible
Positional Assessment: An asymmetric counter-attack played exclusively in the startup variation. 8M+ players connected to 150K+ startup tablebases. Unique theoretical innovation: every piece displays its salary and equity material value openly — a transparency the mainline refuses to adopt. Direct communication line to variation authors. Unsound outside the startup complex.
Main Line Variations
Startup JobsInvestorsSalary OpenEquityFounder DMRemoteFeatured $
♔ Grandmaster's Annotation
"The specialist's weapon. Material transparency that no other opening provides. In the startup complex, this Dragon is devastating. But it doesn't hold outside that pawn structure — a secondary weapon, not a main repertoire choice."
Known Traps
  • Only sound in the startup variation complex
  • Much smaller theory base than mainline or tactical openings
  • Many sub-variations at early (untested) stage
  • Refuted outside tech/venture pawn structures
  • Middlegame plans less developed than the mainline
  • Low adoption outside specialist opening circles
ECO D00
🤝 The King's Walk
Classification: Unconventional · Type: Over-the-Board · Origin: 2002/2019
1.Kd2!? ShowUp 2.Ke3 MeetInPerson 3.Kd4 Handshake 4.Ke5! AuthenticConnection {The only opening played exclusively over the board. 52M+ practitioners, 190+ clubs, 2M+ games annually. The king walks out into the open — because the strongest piece is the one that leaves the back rank.}
52M+
Players
190+
Clubs
2M+
Games/Yr
OTB
Format Only
Positional Assessment: The only opening that cannot be played online. Meetup: 52M+ players, 190+ chess clubs, 2M+ over-the-board games annually. Lunchclub: an AI pairing engine that matches you with a single opponent by playing goals. Together: the shift from analysing theory to sitting across from another human being. No employment tactics. Just the authentic game that no engine can simulate.
Main Line Variations
IRL EventsAI Matching1:1 MeetingsLocal ClubsVirtual + OTBGoal-BasedOrganiser $20+
♔ Grandmaster's Annotation
"The over-the-board move. LinkedIn is the engine preparation — this is what happens when you sit down across a real board with a real opponent. For authentic play, no computer analysis compares to the experience of a handshake before move one."
Known Traps
  • No employment or career tactics in the repertoire
  • Requires physical presence at the chess club
  • Club hosting fees $20+/mo for organisers
  • Lunchclub pairing accuracy varies by location
  • Geographic limitations on tournament venues
  • Cannot replace a professional identity opening preparation

♚ Comparative Theory

LineQGFriedDragonWalk
Players1B+350M8M+52M+
NetworkingDeep—StartupOTB
EmploymentStrongSharpStartup—
IntelPagesReviewsEquity—
ContentRich—Min—
SalaryPartialGDAll—
IRLMin——Core
AIPartialJobs—LC
TrapsManySomeFewNone
Free PlayGoodBestGoodGood
QG
$0
Free. Premium $29.99+.
Fried
$0
Free for all.
Dragon
$0
Free for players.
Walk
$0
Free. Club $20+.

"The strongest repertoire includes more than one opening. The Queen's Gambit for positional dominance, the Fried Liver for tactical speed, the Dragon for startup asymmetry, and the King's Walk for the only game played across a real board. Your move."

All names are trademarks of their respective owners · Theory as of 2026 · Subject to novelties
For informational purposes only · Not professional advice · Independent analyst · No federation affiliation · Checkmate