Nonocross - Puzzle 31

Nonocross Puzzle 31 Answer — Tower

Nonocross Puzzle 31, Tower, is a 7×7 grid with 29 filled cells and 20 empty cells. The completed board is shown below with the exact row and column clues used to verify it. A solver found exactly one grid that satisfies every clue, so this solution is uniquely determined.

Use the clue tables and deduction steps to compare your progress. Every filled group must match the clue for its row and column exactly.

Puzzle 31 - solved boardTower
7 x 7
Grid size
29
Filled cells
20
Empty cells
1
Valid grid for these clues

The clues

Nonocross Puzzle 31 Row and Column Clues

Each line shows its clue and the cells to fill, counted from the left for rows or from the top for columns. Puzzle 31 has 7 rows and 7 columns.

Row clues and cells to fill for Nonocross puzzle 31
RowClueFill cells
Row 11112, 4, 6
Row 252 - 6
Row 333 - 5
Row 433 - 5
Row 533 - 5
Row 652 - 6
Row 771 - 7
Column clues and cells to fill for Nonocross puzzle 31
ColumnClueFill cells
Col 117
Col 2221 - 2, 6 - 7
Col 362 - 7
Col 471 - 7
Col 562 - 7
Col 6221 - 2, 6 - 7
Col 717

The answer

Nonocross Puzzle 31 Solved Grid

Puzzle 31 (Tower) is a 7×7 board with 29 filled cells and 20 empty cells. The board above is repeated here as plain text, one row per line, with ■ for a filled cell and · for an empty cell, so it can be copied or read by a screen reader.

·■·■·■·
·■■■■■·
··■■■··
··■■■··
··■■■··
·■■■■■·
■■■■■■■

Is Nonocross Puzzle 31 Unique?

Yes. A solver enumerated every grid that satisfies all 7 row clues and 7 column clues and found exactly one. The displayed board is therefore forced by the clue set.

How to solve it

How to Solve Nonocross Puzzle 31

Start with the lines that need no thinking: Row 7 (7 on 7 cells), Column 4 (7 on 7 cells). A clue that adds up to the full length of its line, counting one gap between groups, can be filled straight away.

The strongest overlap is Column 3: its clue 6 needs 6 of the 7 cells, leaving 1 spare. The block of 6 can slide by at most 1, so cells 2–6 are filled in every placement.

Applying these single-line deductions to every row and column, then repeating with what is known, fixes 23 of the 49 cells in the first pass and completes the grid in 3 passes. No guessing is needed.

Deductions

Step-by-Step Deductions for Puzzle 31

These deductions come from the actual clues of puzzle 31, applied one line at a time and repeated until nothing new follows.

1

Pass 1 · Row 7

(clue 7 on 7 cells): cells 1–7 must be filled, whatever the rest of the grid holds.

2

Pass 1 · Column 4

(clue 7 on 7 cells): cells 1–7 must be filled, whatever the rest of the grid holds.

3

Pass 1 · Column 3

(clue 6 on 7 cells): cells 2–6 must be filled, whatever the rest of the grid holds.

4

Pass 2 · Column 1

(clue 1): using the cells already fixed by crossing lines settles 6 more cells.

5

Pass 3 · Row 1

(clue 1 1 1): using the cells already fixed by crossing lines settles 2 more cells.

Watch out

Common Mistakes in Nonocross Puzzle 31

Joining two groups

Row 1 reads 1 1 1. In the finished board the groups of 1 and 1 are separated by a single empty cell (cell 3). Filling it would merge them into one block of 3 and break the clue.

Overthinking a full line

Row 7 (clue 7 on 7 cells) has no spare cell, so every position in it is decided by the clue; there is nothing to test.

Using the answer

How to Check Your Nonocross Puzzle 31 Answer

Read the filled-cell groups in every row and column of your grid and compare them with the clue lists above. In this puzzle row 1 must read 1 1 1 and column 1 must read 1; the last row must read 7 and the last column 1.

The line with the most groups is Row 1, which must read 1 1 1; it is the quickest place to spot a merged or split group.

Uniqueness

Verification

How This Nonocross Puzzle 31 Answer Was Verified

  • The filled-cell groups of all 7 rows and 7 columns of the stored board were read and compared with the clue sequences: every line matches.
  • The stored board was compared cell by cell with the 7×7 grid drawn from the game’s own graphics files: identical.
  • A solver counted the grids that satisfy the clues: one.
  • Not established: this board has not been replayed in the live game app. How SolvedWise checks answers.

Questions

Questions About Nonocross Puzzle 31

What is the answer to Nonocross Puzzle 31?

The solved 7×7 grid shown above is the only grid that satisfies all clues for Tower.

What are the row clues for Puzzle 31?

row 1: 1 1 1; row 2: 5; row 3: 3; row 4: 3; row 5: 3; row 6: 5; row 7: 7.

What are the column clues for Puzzle 31?

column 1: 1; column 2: 2 2; column 3: 6; column 4: 7; column 5: 6; column 6: 2 2; column 7: 1.

Is Nonocross Puzzle 31 uniquely solvable?

Yes. Exactly one grid satisfies the complete clue set.

How should I start solving Puzzle 31?

Start with the row or column whose clue uses the greatest proportion of its available cells, then transfer the confirmed cells to the crossing clues.