Loquax Daily Sudoku - 18th August 2025

Give your brain a daily numbers work out with Loquax's free to play Sudoku game (dubbed Su-duck-o). The aim of the game is to complete all the missing squares so that each line and each block all contain the numbers 1 to 9. The default difficulty setting for the puzzle below is 'medium' but you can make this easier (more numbers added) or harder (less numbers added) using the options below. You can also print off today's puzzle and play it offline!

Su-duck-o (Hard difficulty)
   9  4
   7  
     
     
   3  
     
 8    
 9  4  5
   2  1
 7    
     5
 9    
 5    6
   9  
 3    2
     9
 2    
     8
 4  1  
 2  3  8
     9
     
   6  
     
     
   7  
 3  8  

Try another: Easy Peasy | Easy | Medium | Hard

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Rules
  1. Every row must contain the numbers 1 to 9.
  2. Every column must contain the numbers 1 to 9.
  3. Every 3x3 square must contain the numbers 1 to 9.
Hints & Tips
  1. You can change the difficulty level via the links at the top right.
  2. By deselecting "allow incorrect moves" you can check your answer straight away

If you like numbers and brain training then how about playing bingo? Bingo players need mental speed, accuracy, concentration and ability to recognise patterns when they're dabbing their numbers (The Daily Telegraph). The online game does take some of that away with the auto-dabbing feature, but most sites will allow you to disengage the option.

Surprisingly there isn't an online bingo/sudoku crossover game - but there is an Android app where you have to solve the Sudoku puzzle by placing the numbers in the order call by the Bingo Balls.

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