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7x7 Slitherlink Puzzles

A 7x7 slitherlink spreads 64 dots around forty-nine squares, and its loop has room to wind: long corridors, narrow turns and pockets of empty squares. The number patterns learned on 5x5 grids come back here, now chained over longer stretches.

Each page shows one grid, Easy, Medium or Hard, and every grid has a single loop that logic alone can find.

Part of the Slitherlink Puzzles collection, Last updated on Thu, 29 Oct 2026 13:20:29 GMT.

Free Printables

Easy 7x7 Slitherlink Puzzle (N1)

Easy 7x7 slitherlink, with numbers that count their way to the loop, one large grid on the page. Level: Easy. Variant 1.
Easy 7x7 slitherlink, with numbers that count their way to the loop, one large grid on the page. Level: Easy. Variant 1. | zuzuzi.com

Easy 7x7 Slitherlink Puzzle (N2)

Easy 7x7 slitherlink, with numbers that count their way to the loop, one large grid on the page. Level: Easy. Variant 2.
Easy 7x7 slitherlink, with numbers that count their way to the loop, one large grid on the page. Level: Easy. Variant 2. | zuzuzi.com

Easy 7x7 Slitherlink Puzzle (N3)

Easy 7x7 slitherlink, with numbers that count their way to the loop, one large grid on the page. Level: Easy. Variant 3.
Easy 7x7 slitherlink, with numbers that count their way to the loop, one large grid on the page. Level: Easy. Variant 3. | zuzuzi.com

Easy 7x7 Slitherlink Puzzle (N4)

Easy 7x7 slitherlink, with numbers that count their way to the loop, one large grid on the page. Level: Easy. Variant 4.
Easy 7x7 slitherlink, with numbers that count their way to the loop, one large grid on the page. Level: Easy. Variant 4. | zuzuzi.com

Easy 7x7 Slitherlink Puzzle (N5)

Easy 7x7 slitherlink, with numbers that count their way to the loop, one large grid on the page. Level: Easy. Variant 5.
Easy 7x7 slitherlink, with numbers that count their way to the loop, one large grid on the page. Level: Easy. Variant 5. | zuzuzi.com

Easy 7x7 Slitherlink Puzzle (N6)

Easy 7x7 slitherlink, with numbers that count their way to the loop, one large grid on the page. Level: Easy. Variant 6.
Easy 7x7 slitherlink, with numbers that count their way to the loop, one large grid on the page. Level: Easy. Variant 6. | zuzuzi.com

Easy 7x7 Slitherlink Puzzle (N7)

Easy 7x7 slitherlink, with numbers that count their way to the loop, one large grid on the page. Level: Easy. Variant 7.
Easy 7x7 slitherlink, with numbers that count their way to the loop, one large grid on the page. Level: Easy. Variant 7. | zuzuzi.com

Easy 7x7 Slitherlink Puzzle (N8)

Easy 7x7 slitherlink, with numbers that count their way to the loop, one large grid on the page. Level: Easy. Variant 8.
Easy 7x7 slitherlink, with numbers that count their way to the loop, one large grid on the page. Level: Easy. Variant 8. | zuzuzi.com

Medium 7x7 Slitherlink Puzzle (N1)

Medium 7x7 slitherlink, where each number is read with its four corners, one large grid on the page. Level: Medium. Variant 1.
Medium 7x7 slitherlink, where each number is read with its four corners, one large grid on the page. Level: Medium. Variant 1. | zuzuzi.com

Medium 7x7 Slitherlink Puzzle (N2)

Medium 7x7 slitherlink, where each number is read with its four corners, one large grid on the page. Level: Medium. Variant 2.
Medium 7x7 slitherlink, where each number is read with its four corners, one large grid on the page. Level: Medium. Variant 2. | zuzuzi.com

Medium 7x7 Slitherlink Puzzle (N3)

Medium 7x7 slitherlink, where each number is read with its four corners, one large grid on the page. Level: Medium. Variant 3.
Medium 7x7 slitherlink, where each number is read with its four corners, one large grid on the page. Level: Medium. Variant 3. | zuzuzi.com

Medium 7x7 Slitherlink Puzzle (N4)

Medium 7x7 slitherlink, where each number is read with its four corners, one large grid on the page. Level: Medium. Variant 4.
Medium 7x7 slitherlink, where each number is read with its four corners, one large grid on the page. Level: Medium. Variant 4. | zuzuzi.com

Medium 7x7 Slitherlink Puzzle (N5)

Medium 7x7 slitherlink, where each number is read with its four corners, one large grid on the page. Level: Medium. Variant 5.
Medium 7x7 slitherlink, where each number is read with its four corners, one large grid on the page. Level: Medium. Variant 5. | zuzuzi.com

Medium 7x7 Slitherlink Puzzle (N6)

Medium 7x7 slitherlink, where each number is read with its four corners, one large grid on the page. Level: Medium. Variant 6.
Medium 7x7 slitherlink, where each number is read with its four corners, one large grid on the page. Level: Medium. Variant 6. | zuzuzi.com

Medium 7x7 Slitherlink Puzzle (N7)

Medium 7x7 slitherlink, where each number is read with its four corners, one large grid on the page. Level: Medium. Variant 7.
Medium 7x7 slitherlink, where each number is read with its four corners, one large grid on the page. Level: Medium. Variant 7. | zuzuzi.com

Medium 7x7 Slitherlink Puzzle (N8)

Medium 7x7 slitherlink, where each number is read with its four corners, one large grid on the page. Level: Medium. Variant 8.
Medium 7x7 slitherlink, where each number is read with its four corners, one large grid on the page. Level: Medium. Variant 8. | zuzuzi.com

Hard 7x7 Slitherlink Puzzle (N1)

Hard 7x7 slitherlink, where a line sometimes has to be tried in your head, one large grid on the page. Level: Hard. Variant 1.
Hard 7x7 slitherlink, where a line sometimes has to be tried in your head, one large grid on the page. Level: Hard. Variant 1. | zuzuzi.com

Hard 7x7 Slitherlink Puzzle (N2)

Hard 7x7 slitherlink, where a line sometimes has to be tried in your head, one large grid on the page. Level: Hard. Variant 2.
Hard 7x7 slitherlink, where a line sometimes has to be tried in your head, one large grid on the page. Level: Hard. Variant 2. | zuzuzi.com

Hard 7x7 Slitherlink Puzzle (N3)

Hard 7x7 slitherlink, where a line sometimes has to be tried in your head, one large grid on the page. Level: Hard. Variant 3.
Hard 7x7 slitherlink, where a line sometimes has to be tried in your head, one large grid on the page. Level: Hard. Variant 3. | zuzuzi.com

Hard 7x7 Slitherlink Puzzle (N4)

Hard 7x7 slitherlink, where a line sometimes has to be tried in your head, one large grid on the page. Level: Hard. Variant 4.
Hard 7x7 slitherlink, where a line sometimes has to be tried in your head, one large grid on the page. Level: Hard. Variant 4. | zuzuzi.com

Hard 7x7 Slitherlink Puzzle (N5)

Hard 7x7 slitherlink, where a line sometimes has to be tried in your head, one large grid on the page. Level: Hard. Variant 5.
Hard 7x7 slitherlink, where a line sometimes has to be tried in your head, one large grid on the page. Level: Hard. Variant 5. | zuzuzi.com

Hard 7x7 Slitherlink Puzzle (N6)

Hard 7x7 slitherlink, where a line sometimes has to be tried in your head, one large grid on the page. Level: Hard. Variant 6.
Hard 7x7 slitherlink, where a line sometimes has to be tried in your head, one large grid on the page. Level: Hard. Variant 6. | zuzuzi.com

Hard 7x7 Slitherlink Puzzle (N7)

Hard 7x7 slitherlink, where a line sometimes has to be tried in your head, one large grid on the page. Level: Hard. Variant 7.
Hard 7x7 slitherlink, where a line sometimes has to be tried in your head, one large grid on the page. Level: Hard. Variant 7. | zuzuzi.com

Hard 7x7 Slitherlink Puzzle (N8)

Hard 7x7 slitherlink, where a line sometimes has to be tried in your head, one large grid on the page. Level: Hard. Variant 8.
Hard 7x7 slitherlink, where a line sometimes has to be tried in your head, one large grid on the page. Level: Hard. Variant 8. | zuzuzi.com

Patterns Worth Knowing

Some pairs of numbers decide several sides at once. When two 3s sit next to each other, the side between them is on the loop, and so are the two outer sides parallel to it. When a 3 touches a 0 at a corner, the loop must use both sides of the 3 that meet at that corner. Spotting these pairs first gives a loop its first long strokes.

The Loop Must Stay One

As the loop grows, watch for pieces that would close on themselves too early: a side that would close a small loop while other lines are still open can be crossed out. On 7x7 grids, that rule often settles the last corridors.

A Size for Steady Practice

The 7x7 grids need real reasoning while keeping the whole loop in view. Print a level at a time and move up when the Easy grids no longer need crosses.

Frequently Asked Questions

How many numbers does a 7x7 grid show?

It depends on the level: Easy grids keep more numbers, Medium and Hard grids remove more of them, keeping only enough for a single loop.

Is Loop the Loop the same game?

Yes. Loop the Loop and Fences are other names for slitherlink: one closed loop through the dots, guided by numbers from 0 to 3.