Boris

Boris

Boris Pfeiffer is the co-founder and CEO of Riddle.com, a leading platform for interactive quizzes and audience engagement. He brings a wealth of experience from the gaming and tech industries, having previously led Kabam's European operations and founded his own game studio. Earlier in his career, Boris served as General Manager of Monster.com's Internet Advertising Division in Europe. Boris has deep roots in the quiz industry. As General Manager Europe for Tickle.com, he helped scale the popular quiz portal into the world's 28th largest website by 2004, leading to its acquisition by Monster.com for over $100 million. During this time, he managed international teams of quiz writers and psychologists, developing quiz content for brands, mobile apps, and millions of users across Europe in multiple languages. In addition to his work in quizzes and gaming, Boris has supported a variety of startups across Asia, the U.S., and Europe. He is the author of two books - Facebook Fan Pages (2011) and Quizmaster (2017) - and a proud father of two. He has been happily married for over 25 years.


Blog Header Live Audience Engagement

Riddle at live sports events – table tennis Champions League Final Four

Case Study – Live audience engagement with quizzes and score predictors The European Table Tennis Champions League Final Four tournament is one of the biggest team events in the table tennis event calendar. Europe’s top four teams compete over two days to crown the Champions […]

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Header for Press Release on the new partnership between Riddle and the 1. FC Saarbrücken Table Tennis

Riddle Technologies cooperates with 1. FC Saarbrücken for fan engagement

The quiz provider supports the European Champions League Final Four 2023/2024 in table tennis on Easter weekend (31.3. / 1.4.2024). The cooperation aims to improve fan engagement among table tennis fans. Saarbrücken – The collaboration kicks off with the final of the premier league title […]

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How to use quizzes for election marketing

Election Year Buzz: A Proven 3-Stage Guide to Engaging Voters

How to engage, inform, and connect with voters during the election year with interactive content. Keeping your audience engaged is crucial in the fast-paced world of digital media, especially during significant events like the upcoming U.S. presidential elections. Publishers need innovative ways to capture and retain audience attention during a 24/7 news […]

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Header Personality Quiz Question Format. What type of questions perform better: Likert Scale or situational questions?

Riddle Lab – Personality Quiz Question Format

Riddle Lab – Personality Test Questions Experiment: Do simple Likert scale questions perform better or worse than situational questions and answer options in a personality quiz? What do you think? What kind of questions perform better in Personality Quizzes? Likert Scale Situational Questions Why do […]

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Header Pop-Up vs. Quiz: Which converts better?

Riddle Lab – Pop-up vs. Quiz conversion rates

Experiment: Form completion rates of a pop-up vs. embedded quiz Does a pop-up with a newsletter sign-up form outperform an embedded quiz with the form placed at the end of the quiz? What do you think? Do pop-ups generate more leads than a quiz? Yes, […]

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Header: Form Skip Option: What is the effect of adding a skip option to a form block?

Riddle Lab – Form skip option

Experiment: Skippable vs. Unskippable Forms What is the effect of adding a skip option to a form block on its completion rates? Introduction Building a list of newsletter subscribers through zero party data is the most cost efficient way to reach existing and new customers […]

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Header: Optimal Lead Form Placement. What is the optimal placement of form blocks in your Riddle?

Riddle Lab – form placement

Experiment: Form Placement What is the optimal placement of form blocks in your Riddle? Introduction When using a quiz maker to gather user information through interactive content like quizzes, it’s crucial to consider where to place the form block. Whether it is at the beginning, […]

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Riddle quizmaker is the best alternative to Typeform

Riddle is the best alternative to Typeform

Typeform vs Riddle – which quiz maker is best? There are several online quiz makers out there – today, let’s compare Typeform vs Riddle. Are you looking to create a quiz to power your marketing funnel? Today’s marketers are turning to quizzes to collect leads […]

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Riddle Release Log 2025

Riddle Release Log

New Features & Improvements Our release log is diligently updated each time we introduce new features to our quiz maker – from formats to features and new lead generation options. You can also visit our release log archives for 2023 and 2024. Sign up for […]

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Collect rich first party data using Riddle's Data Layer

Collect rich first-party data with Riddle’s Data Layer

Quizzes, polls, and personality tests are among the best ways to collect rich first-party data. By combining answers to quiz questions and data willingly shared by the quiz taker (like name and email), you can segment your user data. This allows you better, more targeted follow-up […]

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