Addloom
Select numbers on a fixed 5x5 board until every row and column matches both its sum and selected-tile count.
Choose a challenge
Number & Logic
Sudoku, number merging, math, nonograms, and rule-based logic.
Choose grid deduction with Sudoku, Rectweave, or Bit Balance; connect numbered islands in Isleline; pair numbers in Tenthread; merge toward 2048 in Nova; or deduce mines in Signal Sweep.
Rectweave
Divide the grid into rectangles so each number owns a block of that area.
Arithmosaic
Place a finite bank of numbers into crossing equations until every row and column is exactly true.
Bit Balance
Fill a 6x6 grid with 0s and 1s so every line balances, avoids triples, and stays unique.
Isleline
Connect numbered islands with one or two bridges until every island matches its clue and the network is one connected whole.
Fourfold 24
Fold four numbers into exactly 24 with three exact combines in Daily or Practice puzzles.
Lumen Sudoku
Solve Classic Sudoku or the Constellation variant with rising star paths.
Signal Sweep
A modern, touch-friendly classic Minesweeper field.
Nova Merge 2048
Slide and fuse luminous number cores to build 2048.
Reckon Rush
Race through adaptive mental math or jump straight into three-digit Crazy mode.
Tenthread
Clear a fixed 6x6 field by pairing equal numbers or numbers that make 10 across open rows and columns.
Guide
Understand the mechanics
Use this first-party guide when you want explanation or comparison before choosing a game. The catalog above remains the complete category shelf.