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๐Ÿง  Discover Your Real World IQ

Take the comprehensive cognitive assessment developed by Guinness World Records Puzzle Master Timothy E. Parker. Measure your true intellectual potential across 6 brain domains.

GUINNESS WORLD RECORDS PUZZLE MASTER

SUMCRUNCHER

THE ONLY DAILY BRAIN GAME YOU NEED

A precision-designed numerical cognition exercise that trains four critical brain regions in under five minutes. Created by Guinness World Records Puzzle Master Timothy E. Parker, whose puzzles have reached over 180 million solvers worldwide.

Guinness Record
World's Most Syndicated
80+ Million
Daily Solvers
17,000+
Puzzles Created

TRAIN YOUR BRAIN DAILY

SumCruncher exercises four essential cognitive domains through continuous mental arithmetic. Unlike passive puzzles, your brain is computing every second โ€” from first glance to final tile.

  • Parietal Lobe โ€” Numerical Processing
  • Prefrontal Cortex โ€” Strategic Planning
  • Working Memory โ€” Mental Tracking
  • Processing Speed โ€” Quick Calculation

TODAY'S CHALLENGE

--
Target
24
Numbers
9
Sets

Unlock Full Performance Insights

Premium players receive a comprehensive breakdown of every session.

Premium Results Dashboard Includes:

  • Performance Summary & Score
  • Processing Speed & Reaction Time
  • Working Memory Tracking
  • Accuracy & Attention Metrics
  • Executive Function & Strategy
  • Global Achievements & Leaderboards
  • Full Session History & Progress
SumCruncher results and game screenshot

CHOOSE YOUR PLAN

Free daily training or unlimited premium access

Free
$0
forever
  • 1 Daily Puzzle
  • 5 Hints per Game
  • Basic Score Summary
  • Adโ€‘Free Experience
  • Full Performance Dashboard
  • Unlimited Play

SUMCRUNCHER

By Timothy E. Parker โ€” Guinness World Records Puzzle Master
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Time
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Target
0/--
Score
Find 2 numbers that equal --

๐ŸŽ‰ PUZZLE COMPLETE!

Excellent mental workout!

0
Score
00:00
Time
0/9
Sets
๐ŸŽจ THE MASTERPIECE REVEALED
Each color = one solution set. All sum to the same target!