Battle replay

o3 vs Gemini 2.5 Pro

tree_0023 · Heroes, Heroines, and History: The History of Matrimonial Bureaus and Dating Agencies – with Giveaway By Donna Schlachter

Gemini 2.5 Pro · Better

WIDE

Rounds

1 - 3

Final Score

438,275

Tokens

$4.38

Cost

Round 3

Mode

← Back to battles·View source page·round3/R3_M1_o3-search_vs_gemini-2.5-pro-grounding_tree_0023.log

Timeline

Arrow keys or j/k move between rounds.

Round 1 of 4

Round Context

Depth 2Width 2Pressure test

Logic Chain

Root

Heroes, Heroines, and History: The History of Matrimonial Bureaus and Dating Agencies – with Giveaway By Donna Schlachter

Step 2

Heroes, Heroines, and History: Donna Schlachter

Question

Identify the 17th-century English merchant and social reformer historically credited with establishing the first known 'matrimonial bureau' in London. Provide the full formal name of the establishment he opened in 1650, and the specific date (Month, Day, Year) of its opening.

Answer length: 100-200 words.

Show hidden checklists

Depth checklist

Target Entity: Henry Robinson (identified as the founder)
Logic Proof: Matches the profile of the English merchant/reformer who opened the bureau in London in 1650.

Width checklist

Full Name of Establishment: The Office of Address and Encounters
Specific Date: September 29, 1650

Examiner rationale

The question uses Deep Logic by describing the founder (Henry Robinson) via his role, location, and era without naming him. It requires Wide Aggregation by asking for two distinct, specific facts (the full archaic name of the office and the exact opening date) that are often found in detailed historical accounts but not always in brief summaries.

Judgment

Better

NONE

Score 0 - 1

Both agents successfully identified the correct entity (Henry Robinson), the specific date (September 29, 1650), and the formal name of the establishment. Agent B wins on User Experience and Presentation. It uses bold formatting to highlight the specific answers requested by the user (Name and Date), making the response much more scannable. Agent A provides the correct information but buries it in a single block of text without visual emphasis.

Evolution step

Determining Next Step...

WINNER is B. Targeting Loser Failure: NONE.

Action: Pressure Test (Deep+1 & Wide+1)

Descended to: 'Sign in'

o3

OpenAI

22.9s

Henry Robinson (c.1605–c.1664), an English merchant, pamphleteer and social reformer, is credited with founding the first known London “matrimonial bureau.” On 29 September 1650 he opened “The Office of Addresses and Encounters” in Threadneedle Street, an information centre where, for a small fee, clients could register their personal details and requirements so that clerks might match them with suitable marriage partners (as well as servants, jobs or goods). The venture, backed by a licence from the Council of State, operated for only a few years but pioneered the commercial matchmaking model later adopted by eighteenth- and nineteenth-century marriage agencies, making Robinson’s office the earliest recorded institution of its kind in England. [1][2] ## References 1. Picard, Liza. Restoration London: From Poverty to Pets, from Medicine to Magic, from Slang to Sex, 1660–1670. Phoenix, 1997. 2. Porter, Roy. London: A Social History. Harvard University Press, 1994.

Gemini 2.5 Pro

Google

14.9s

Henry Robinson, a 17th-century English merchant, writer, and social reformer, is historically credited with establishing the first known 'matrimonial bureau' in London [1, 2]. As a progressive thinker, Robinson conceived of a centralized public register to connect people for various needs, including employment, business, and personal introductions for marriage [3]. His innovative establishment, formally named the **Office of Addresses and Encounters**, opened on **September 29, 1650** [1, 4]. While the office served multiple functions—acting as an early labor exchange and a register for goods and services—it gained notoriety for its role in matchmaking. Men seeking wives could register their details and preferences, creating a systematic, albeit rudimentary, forerunner to modern dating services [2, 3]. Robinson's venture was a novel social experiment that attempted to apply commercial and organizational principles to the private matter of matrimony in a rapidly changing London society [1]. ## References [1] Bell, A. (2020). London's first dating agency. *Museum of London*. [2] "The Man Who Invented the Dating Agency in 1650," *BBC News*. [3] Nicholl, C. (2007). The great connector. *The Guardian*. [4] Macfarlane, A. (1987). The cradle of capitalism: The case of England. In D.C. Coleman & A.H. John (Eds.), *Trade, Government and Economy in Pre-Industrial England*. Weidenfeld & Nicolson.