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Christopher Yoo

USA’s Youngest Ever International Chess Master!

by John Bain

At Only 12 Years Old

At 12 years old, Christopher Yoo, a San Francisco Bay Area local, made history, earning his International Master (IM) title at the Bay Area International Chess Tournament in January, 2019, becoming USA’s Youngest Ever International Chess Master! 

Christopher Yoo, born on December 11, 2006, is a Korean-American who learned to play chess shortly before he turned 7 and who a couple years ago made US Chess history by becoming the Youngest Ever USA Master at the age of 9 years and 11 months, just 30 days shy of his 10th birthday. 

Also on his path to USA’s Youngest Ever International Chess Master, Yoo broke India’s Praggnanandhaa’s record for the youngest player ever to beat a 2700+ rated Grandmaster, but the Indian prodigy “Pragg” still holds the all-time mark for the Youngest Ever International Chess Master at 10 years old!

Christopher Yoo

With a birthday of December 19, 2006, Christopher was barely 12 years old when he broke another 12-year-old’s record–USA’s International Master’s Arthur Guo’s record.

Arthur Guo

Unseated After Only 6 Months!

No Longer USA’s Youngest Ever International Chess Master! 

12-year-old IM Arthur Guo, who was a few weeks older than Yoo, held the record for only about 6 months after he earned the IM title earlier in the year–in July 2018 at the Pan-Am Youth Tournament in Ecuador. 

Youngest Ever Grandmaster?

USA’s Youngest Ever Grandmaster? Yoo now has about 21 months before coming up against GM Sam Sevian’s record for Youngest American Grandmaster in history (13 years, 10 months, 27 days). USA’s Sam Sevian is #10 on the list of “The 10 Youngest Grandmasters in History.”

World’s Youngest Ever Grandmaster? Christopher Yoo now has about half a year to make history again if he could somehow manage to break Sergey Karjakin’s mark for the World’s Youngest Ever Grandmaster!

The 10 Youngest Grandmasters in History

The 10 youngest chess Grandmasters in history.

The Path to Grandmaster Can Begin Here

World’s Best-Selling Scholastic Chess Workbooks!

161,685 in print now! 

Why? Simply, the best! And affordable! 

Chess Rules For Students ($4.50) – 83,870 in print and counting!

Checkmate! Ideas For Students ($5.00) – 40,280 in print and counting!

Chess Tactics For Students ($12.80 – On Sale Now!) – 37,535 in print and counting!

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Beginner’s BookChess Rules For Students

Chess Rules For Students workbook

Chess Rules For Students is a workbook for students learning the game of chess and for beginning students returning to the game. No previous knowledge of chess is necessary. Parents unfamiliar with chess will find this booklet a valuable guide to their child’s new interest.

Chess Rules For Students is designed with students, coaches, and parents in mind. Reading level is appropriate for grade-school use. All major rules of chess are covered, and algebraic notation worksheets are included. Each page is in easy-to-use worksheet format. A student-friendly Answer Key makes self-correction fun!

Beginners & Intermediate Book – Checkmate! Ideas For Students

Checkmate! Ideas For Students

Checkmate! Ideas For Students is a workbook for beginning and intermediate students. Checkmate! covers the tactics used in checkmate attacks with clear explanations, diagrams and arrows to pinpoint the key features.

Unlike many other basic checkmate books, Checkmate! categorizes the checkmates by the tactics used to force the checkmate–like Pins, Sacrifices, Removing the Guard, Attraction, Clearance and Attacking Flight Squares–rather than only the checkmate pattern itself. The worksheets and Answer Key are clear and simple for the student to use, and easy for the parent, teacher and coach to correct! Fun!

Intermediate & Advanced BookChess Tactics For Students

Chess Tactics For Students workbook

Chess Tactics For Students is a workbook containing 434 carefully selected problems in worksheet format. Chess Tactics has been extensively field tested with elementary, middle-school, and high-school students over a four-year period.

This book is ideal for independent seat work as well as for homework and classroom instruction. The worksheet format and Answer Key enable self-correction with minimal dependence or direct help from a chess teacher, coach, or parent.

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Below are the weekly prizes we send out! If you don’t win, try again the following week for your chance to win! Click on the prize to learn more about it.

Checkmate In One Prize
Chess Rules For Students Workbook
An instructional workbook designed for students learning the game of chess. Click here to learn more!
Checkmate In Two Prize
Checkmate! Ideas For Students
An instructional workbook containing tactics in worksheet format used to checkmate--like Pins, Sacrifices, Removing the Guard, Attraction, Clearance, and Attacking Flight Squares!
Checkmate In Three Prize
Chess Tactics For Students
An instructional workbook containing 434 carefully selected problems presented in worksheet format.

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