Football Sudoku™ – 6×6 Logic Challenge

Daily Brain Training with the Wisdom and Glory of 48 World Cup Teams in 2026.

Easy
Medium
Hard
Football Fan Numbers
Total Football Fans: 0
kr
uy
dk
pl
us
kr
kr
qa
uy
us
pl
dk
pl
us
us
kr
dk
Denmark
DNK
6.0M
South Korea
KOR
51.2M
Poland
POL
37.4M
Qatar
QAT
3.2M
United States
USA
340.1M
Uruguay
URY
3.5M
Clear
 

Game Rules: No repeats in any row, column, or 3×2 sub-region. Pure logic, World Cup style.
Click an empty cell to select it, then choose a national flag from the panel below to fill it.
Complete the entire grid to unlock your "Smart Lucky Numbers" – a sharper test of intuition and strategy.
Technical optimization: Cache acceleration, concurrency control, algorithm optimization - providing smoother gameplay