Welcome to a puzzle that brings a unique structure to your Sudoku solving! This Staircase Sudoku (also known as Expanded Sudoku) is a variant I submitted for the World Sudoku Championships 2017, though it wasn't included in the final set. After a long gap of over a year, I'm happy to publish it as the 208th puzzle in our Daily Sudoku League. The puzzle consists of two overlapping 9x9 grids with gaps in the middle, creating a "staircase" effect. The core idea is that each grid must be solved according to classic Sudoku rules, but the overlapping area connects the two, requiring you to solve them in tandem.
This puzzle is a great way to practice multi-grid logic. The overlapping sections act as a bridge, forcing you to consider how a digit's placement in one grid affects the other. It's perfect for a focused session where you can explore the intricate interplay between the two grids. Enjoy this well-crafted and creative variant that adds a new dimension to your solving experience.
Rules of the Staircase Sudoku Puzzle
Place a digit from 1 to 9 in each empty cell so that each digit appears exactly once in each row, column, and 3x3 box in each of the grids. Two grids overlap with gaps in the middle.
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| Staircase Sudoku Puzzle (Daily Sudoku League #208) |
Here are the next and previous Sudoku puzzles published in this series.
The next Sudoku Puzzle is an Anti Windoku Puzzle (Daily Sudoku League #209)
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2:07.Nice and easy !