Skills » Metacognition

Drawfender

You have a pencil. Your enemies have high-powered ...

Calcudoku light vol 1

The object is to fill all empty squares so that th...

Seesaw Logic

Ride on the seesaw and become a genius of logic! Y...

Hypersudoku

Turn on the hyper mode as you reach a more advance...

Greater Than Sudoku

Yet another challenging sudoku puzzle is here - ar...

Jigsaw Sudoku

Continue your journey in our sudoku series and com...

Killer Sudoku

Time to defeat the killer, sudoku geniuses! Same a...

Classic Sudoku

We have all played the famous game Sudoku, now pla...

Agent Higgs: Chapter 1

Scientists around the world are hunting for the el...

Agent Higgs: Chapter 2

Agent Higgs is on the run, again. The problem is -...