Reflection IT

Number Fill In

Place every number where it belongs, no math needed

Play free on Microsoft Store
4.6 from 674 ratings Free
  • Puzzle & trivia
  • Windows PC & tablet
  • On the Store since 2017
Number Fill In screenshot 1Number Fill In screenshot 2Number Fill In screenshot 3Number Fill In screenshot 4

How to Play Number Fill In

Number Fill In gives you the quiet satisfaction of sliding number sequences into a crossword-style grid until every row and column clicks perfectly into place. It suits anyone who enjoys logic puzzles and wants a calm, screen-friendly challenge they can pick up and put down at will.

  1. Open the puzzle and study the grid of empty cells
  2. Scan the list of provided number entries to get a feel for their lengths
  3. Use the pre-filled starter entry as your anchor point
  4. Work outward by matching entry lengths to available across and down slots
  5. Fill in the remaining entries until the grid is complete

Controls

Tap or click a cell to select it, then type the digit you want to place. Switch direction between across and down as you work through the grid.

When does a round end?

A round ends when every cell in the grid is correctly filled with its matching number entry.

Tips & Tricks

  • Start with the longest number entries — they fit fewer slots, so they narrow your choices fastest
  • Count the digits in an entry before trying it in a slot; length mismatches are an instant rule-out
  • When you are stuck, look for slots that share a crossing cell with a number you already placed
  • The pre-filled starter entry reveals at least one confirmed digit in adjacent slots, so build from it early

Why people keep coming back

  • No math required every entry is given to you; the challenge is placement, not calculation
  • Crossword-style grid numbers read across and down exactly as words do in a classic fill-in puzzle
  • Built-in starter entry one answer is pre-placed in every puzzle so you always have a foothold
  • Mixed across and down entries are unsorted, so finding the right slot is the heart of the puzzle
  • Pure logic format no timers or penalties create a relaxed, pressure-free solving experience
  • Focused category sits squarely in Puzzle and Trivia, designed for one clear kind of satisfaction

Content & audience

  • Suitable for all ages (ESRB E; PEGI 3; DJCTQ L; USK Everyone; IARC 3; COB-AU G; GRB All; PCBP 0; CSRR G; CCC TE; Microsoft 3).
  • Free game supported by advertising, with optional in-app purchases.
  • Single-player experience: no chat, no messaging and no user-generated content.
  • Playable offline; no account required.

Category: Video Gaming › Puzzle Video Games › Word Games · Store category: Puzzle & trivia

Policies & support

About Number Fill In

Number Fill-Ins are Fill-In puzzles with a delightful difference - each puzzle consists entirely of numbers! No math skills required, and just like regular Word Fill-Ins all the entries are provided. You solve each puzzle by filling in the diagram with entries reading across and down, in the same manner as a crossword puzzle. Across and Down answers are mixed together, and it is up to you to find their proper places in the diagram. To help you get started, one entry in every puzzle is already filled in.

Details

Publisher
Reflection IT
Developer
Fons Sonnemans
Category
Puzzle & trivia
Released
2017-08-21
Rating
4.6 / 5 · 674 ratings
Price
Free

Updated 2026-09-25 · Press kit & assets · Product data (JSON)