Printable 16×16 Sudoku

A 16×16 Sudoku has sixteen rows, sixteen columns and sixteen 4×4 boxes. Instead of 1 to 9 it uses sixteen symbols: the numbers 1 to 9 and the letters A to G, so every square still holds a single character. Print one sheet or ten at once; each puzzle's answer comes on the page after it.

Quick answer

Every puzzle here has exactly one answer and can be solved without guessing. Easy puzzles need only naked singles: a square where just one symbol is left. Medium puzzles also need hidden singles: a symbol that has only one place left in a row, column or box.

All 16×16 sheets

200 sheets, one puzzle each: Easy from sheet 1, Medium from sheet 101.

Sheet of 200

Easy: Every step is a square where only one symbol is left.

1

59C6DF3174GBEBG2E7134625A952GCD381B51763D61BA8F318925EA59G79A28F7843DA2B9C18D3FAG2GF66D74CGE259B584D36

Show the answer

1

2EA59GBC6DF3481763FD4871GC9B25EA9CBGA2E54871F6D34178F63D25AE9GCB5A2EGC9BD36F8174GB9C25AE81476D3FDF638147CBG95EA287416DF35E2AGCB9FD3674189GBCA25EA5E2B9CGF63D7481BGC9EA5274183F6D78143FD6A2E5B9GC1487D36FEA52CB9GE25ACBG93FD6174836DF1784B9CGEA25C9GB5E2A1784D3F6

Tips for a 16×16 grid

Start with the rows, columns and boxes that already hold the most symbols: they have the fewest gaps to check.
Write small notes in the squares. With sixteen symbols, notes save a lot of rescanning.
Work one symbol at a time: find every place the 1 can still go, then the 2, and on to G.

More to print

Printable Sudoku →Samurai Sudoku →Jigsaw Sudoku →Large print →Sudoku for kids →

Sudoku Flow · 16×16 Sudoku

16×16 Sudoku · Easy · Sheet 1

Name:Date:

Fill the grid so that every row, every column and every 4×4 box holds 1 to 9 and A to G exactly once.

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59C6DF3174GBEBG2E7134625A952GCD381B51763D61BA8F318925EA59G79A28F7843DA2B9C18D3FAG2GF66D74CGE259B584D36

https://sudokuflow.com/printables/sudoku-16x16/

Answers: 16×16 Sudoku · Easy · Sheet 1

Want more boards like this?

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Sudoku Flow is made by Rubigo Games, the developer of the Sudoku app recommended on this site.