Sumrex

Ledger Lock MATH

Ledger Lock is a daily number-logic puzzle. Toggle cells on the grid so every row and column adds up to its target sum — but no two selected cells can be adjacent. One unique solution each day, with streak tracking and shareable results.

Sums MATH

Sums is a daily number-placement puzzle where the arithmetic is simple, but the spatial reasoning is the challenge. Hand-crafted puzzles, a daily leaderboard, and hints if you get stuck.

Cagey MATH

A free daily cage math puzzle — fill cages to hit the target using +, ×, −, ÷. New puzzle every day

Sections Puzzle MATH

Daily number logic puzzle. Fill a grid divided into sections. Each section must contain numbers 1 through its length with no repeats. A fresh alternative to Sudoku with a unique twist. New puzzle every day, with 5 exclusive puzzles for Listdle users!

Number Crunch MATH

Click squares on a colorful, number-filled grid. Each click increases the number in the square. Adjacent squares with the same number will be crunched and removed from the grid. Can you clear it?