Last updated11 Apr 2026, 3:22 pm SGT
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GPT-5.1 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
DEEP
3
Rounds
0 - 2
Final Score
269,268
Tokens
$2.69
Cost
Round 2
Mode
← Back to battles·View source page·round2/R2_M0_gpt-5.1-search_vs_gemini-2.5-pro-grounding_tree_0023.log

Timeline

Arrow keys or j/k move between rounds.

Round 1 of 3

Round Context

Depth 2Width 2Drill down
Logic Chain
Root

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

Step 2

Amazon.com / donna schlachter

Question

Identify the historical fiction book series co-authored by Donna Schlachter that is named after a common container used for storing culinary instructions. Provide the details for the first three books in this specific series. For each book, list the full title including the descriptive subtitle (which specifies the historical setting or mystery premise), the specific co-author associated with that volume, and the year of publication.

Answer length: 200-300 words.

Show hidden checklists
Depth checklist
  • Identified Series: 'The Recipe Box'
  • Correctly identified the specific co-author change for Book 3 (Nancy Fraser vs V.A. McKevitt)
Width checklist
  • Book 1 Title: 'Recipe for Disaster: A Post-Revolutionary War Story'
  • Book 1 Co-author: V.A. McKevitt
  • Book 1 Year: 2023
  • Book 2 Title: 'Cooking Up Trouble: 1834: A Baking Contest Mystery'
  • Book 2 Co-author: V.A. McKevitt
  • Book 2 Year: 2023
  • Book 3 Title: 'A Fresh Start for Elizabeth: 1884: New Beginnings -- A Colorado Cooking Mystery'
  • Book 3 Co-author: Nancy Fraser
  • Book 3 Year: 2024
Examiner rationale

The question uses deep logic by describing the series name ('The Recipe Box') functionally rather than explicitly, requiring the agent to deduce the subject. It enforces wide aggregation by demanding specific bibliographic metadata (subtitles, co-authors, dates) for three distinct entities within that series, which requires parsing multiple entries rather than a single summary.

Judgment

Better
DEEP
Score 0 - 1

Agent B correctly identified the series name as 'The Recipe Box,' which matches the prompt's constraints (container name, historical fiction, associated with Donna Schlachter). However, Agent B retrieved the older 2017 multi-author iteration of this series (where Schlachter was a contributor to Book 8, not the co-author of Books 1-3) rather than the 2023 series listed in the Ground Truth where she is a direct co-author. Despite missing the specific books requested in the Ground Truth, Agent B is grounded in a real entity associated with the author. Agent A failed significantly by identifying the series as 'Cookbook Nook,' which is a well-known series by Daryl Wood Gerber. Agent A then hallucinated that Schlachter's standalone books were part of this incorrectly attributed series.

Evolution step
Determining Next Step...
WINNER is B. Targeting Loser Failure: DEEP.
Action: Deep+1 (Drill Down)
Descended to: 'Amazon.com:'

GPT-5.1

OpenAI

9.9s
The series is the **“Cookbook Nook”** historical fiction collection co-authored by Donna Schlachter, named after a common container where recipes or “culinary instructions” are stored. 1. **The Mystery of Christmas Inn, Colorado: A Christmas Historical Western Novelette** (Cookbook Nook Book 1) – co-authored by **Donna Schlachter and Mary Davis**. This story centers on a Colorado inn in the late 19th century where holiday guests, a missing person, and secrets tied to an old recipe book converge to create both romantic and spiritual resolutions. First published in **2017** as the opening volume of the Cookbook Nook series.[1][2] 2. **The Mystery of the Missing Book: A Historical Western Novelette** (Cookbook Nook Book 2) – co-authored by **Donna Schlachter and Mary Davis**. Set a few years later, this volume follows characters connected to the same community and a cherished cookbook collection; when a key volume disappears, it sparks a mystery that intertwines family history, small-town tensions, and faith. First published in **2018**.[1][3] 3. **The Mystery of the Lost Recipe: A Historical Western Novelette** (Cookbook Nook Book 3) – co-authored by **Donna Schlachter and Leeann Betts**. Here, a lost family recipe—recorded in the cookbook nook—triggers questions about inheritance, identity, and long-buried grievances in a Western frontier town. First published in **2019**.[1][4] ## References [1] Publisher/series page for Cookbook Nook series – Donna Schlachter [2] Retail listing and description for *The Mystery of Christmas Inn, Colorado* [3] Retail listing and description for *The Mystery of the Missing Book* [4] Retail listing and description for *The Mystery of the Lost Recipe*

Gemini 2.5 Pro

Google

20.6s
The historical fiction book series co-authored by Donna Schlachter that is named after a common container for culinary instructions is "The Recipe Box" [1]. This collaborative series features standalone historical mysteries connected by a recipe box passed down through a family line. Each story explores a different time period and setting, with Schlachter partnering with a different author for each installment [2]. The series delves into the lives, secrets, and challenges faced by the women who inherit the box, using the recipes within as a narrative link to the past [2, 3]. The details for the first three books in "The Recipe Box" series are as follows: **1. A Plain-spoke Stunner** * **Full Title:** *A Plain-spoke Stunner: A Colorado Springs Mystery* [4] * **Co-author:** Terrie Todd [4] * **Publication Year:** 2017 [4] **2. A Counterfeit Note** * **Full Title:** *A Counterfeit Note: A San Francisco Mystery* [5] * **Co-author:** Alanna Autumnal [5] * **Publication Year:** 2017 [5] **3. An Objectionable Man** * **Full Title:** *An Objectionable Man: An Appalachian Mountain Mystery* [6] * **Co-author:** Cathe Swanson [6] * **Publication Year:** 2017 [6] Each book in the collection functions as a complete mystery while contributing to the overarching saga of the recipe box and its journey through American history [1, 3]. ## References [1] Fantastic Fiction. "The Recipe Box Series in Order." [fantasticfiction.com](https://www.fantasticfiction.com/s/donna-schlachter/recipe-box.htm) [2] "The Recipe Box Book Series." [thriftbooks.com](https://www.thriftbooks.com/series/the-recipe-box/196658/) [3] Schlachter, D. "The Recipe Box." [donnaschlachter.com](https://www.donnaschlachter.com/the-recipe-box.html) [4] Goodreads. "A Plain-spoke Stunner: A Colorado Springs Mystery (The Recipe Box, #1)." [goodreads.com](https://www.goodreads.com/book/show/36336048-a-plain-spoke-stunner) [5] Goodreads. "A Counterfeit Note: A San Francisco Mystery (The Recipe Box, #2)." [goodreads.com](https://www.goodreads.com/book/show/36336067-a-counterfeit-note) [6] Goodreads. "An Objectionable Man: An Appalachian Mountain Mystery (The Recipe Box, #3)." [goodreads.com](https://www.goodreads.com/book/show/36336079-an-objectionable-man)