Find your next kind of puzzle.

Goal: Fill the grid with building heights 1 through N. Rules: - Each row and column must contain every height from 1 to N exactly once. - Each outside clue shows how many buildings are visible from that direction. - A building is visible only if every building before it is shorter; taller buildings hide shorter buildings behind them.

• Logic
• Grid
• Placement

Goal: Shade cells black so every numbered clue has the correct sightline total. Rules: - Numbered cells must remain white. - A clue counts its own cell plus all consecutive white cells visible horizontally and vertically until the grid edge or a black cell is reached. - Black cells cannot share an edge. - All white cells must form one orthogonally connected area.

• Logic
• Grid
• Shading

Goal: Connect every pair of matching numbers. Rules: - Each pair is joined by one continuous path that moves horizontally or vertically. - Paths cannot cross, overlap, branch, or pass through a number belonging to another pair. - Every cell, including the numbered endpoints, must be used by exactly one path.

• Logic
• Path
• Grid

Goal: Reconstruct one passing route from the left goal to the right goal. Rules: - The route must visit all 24 player dots exactly once. - Join aligned players with straight segments; segments cannot cross or overlap. - The route must continue straight through every white player. - The route must make a 90° turn at every black player. - Numbered players must be visited in the exact order shown, beginning with 1 after the starting goal.

• Path
• Logic
• Grid

Goal: Travel from the start to the finish. Rules: - Move only through open maze passages and never cross a wall. - When you enter a portal, immediately continue from the matching portal with the same color or number. - After leaving a portal, follow the maze normally until you reach the finish.

• Maze
• Path
• Visual

Goal: Draw one continuous path from the green 1 to the orange 1. Rules: - Consecutive cells must follow the repeating sequence 1–2–3–4. - Each move may be horizontal, vertical, or diagonal to an adjacent cell. - Every cell must be visited exactly once. - The path cannot revisit a cell or cross itself.

• Logic
• Path
• Grid

Goal: Identify and correct the wrong entries in the Sudoku grid. Rules: - Use the row and column Nonogram clues to determine which cells must be shaded. - Every shaded cell marks an incorrect Sudoku entry; unshaded entries remain fixed. - Replace the incorrect entries so each row, column, and 3×3 box contains the numbers 1–9 exactly once.

• Sudoku
• Nonogram
• Logic
• Grid

Goal: Complete the Windoku grid. Rules: - Each row, column, and standard 3×3 box must contain the numbers 1–9 exactly once. - Each shaded 3×3 window must also contain the numbers 1–9 exactly once. - All standard and shaded-region rules apply at the same time.

• Sudoku
• Variant
• Logic
• Grid

Goal: Decide which outlined 1×2 areas contain magnets and orient each magnet correctly. Rules: - Each outlined pair is either blank or contains one + pole and one − pole. - Edge clues show the exact number of + and − poles in each row and column. - Two + poles cannot share an edge, and two − poles cannot share an edge. - Blank pairs contain neither pole.

• Numbers
• Logic
• Grid
• Placement

Goal: Connect all islands into one continuous network. Rules: - Bridges run only horizontally or vertically between islands in the same row or column. - A bridge may connect only the nearest visible island in that direction and cannot pass through another island. - Each island number gives the exact total number of bridges attached to it. - At most two bridges may connect the same pair of islands. - Bridges cannot cross, and every island must belong to the same connected network.

• Logic
• Connection
• Grid

Goal: Complete the grid with the numbers 1 through N. Rules: - Each row and column must contain every number from 1 to N exactly once. - Every inequality sign between adjacent cells must be true as written. - Given numbers are fixed.

• Numbers
• Logic
• Grid

Goal: Place all listed words into the grid. Rules: - Each word starts at its marked letter and follows the compass direction assigned to its list. - Words may run horizontally, vertically, or diagonally. - Words may overlap only where the shared letter is the same. - A word cannot pass through another word’s marked starting cell. - Use every listed word exactly once and fill every grid cell.

• Word
• Logic
• Grid

Goal: Find the matching pair. Rules: - Compare every image carefully, including shape, color, orientation, pattern, and small details. - Exactly two images match in every detail. - Mark the identical pair.

• Visual
• Observation

Goal: Find the exact shadow of the main picture. Rules: - Compare the complete outer silhouette, including orientation, pose, and small protruding details. - Ignore shadows with any missing, added, moved, or flipped feature. - Choose the one exact match.

• Visual
• Observation

Goal: Find the entrance that reaches the center. Rules: - Begin at one of the marked outside entrances. - Follow only open passages. - Do not cross walls or jump between rings. - Trace the route that reaches the center.

• Path
• Observation

Goal: Find the total number of triangles in the figure. Rules: - Count every triangle whose three sides are completely formed by drawn line segments. - Include both small triangles and larger composite triangles. - Do not count shapes with an incomplete side. - Count each distinct triangle once.

• Visual
• Grid
• Observation

Goal: Complete the grid so all row and column sums are correct. Rules: - Use every number in the allowed range exactly once. - A 3×3 puzzle uses the numbers 1–9; a 4×4 puzzle uses the numbers 1–16, unless another range is shown. - The numbers in each row must add to its clue on the right. - The numbers in each column must add to its clue below.

• Numbers
• Math
• Logic
• Grid
• Placement

Goal: Place A, B, and C in the grid. Rules: - Each row and column must contain A, B, and C exactly once. - All other cells remain empty. - An outside clue shows the first non-empty letter seen when looking into that row or column from the clue’s side.

• Word
• Grid
• Placement

Goal: Place A, B, C, and D in the grid. Rules: - Each row and column must contain A, B, C, and D exactly once. - All other cells remain empty. - An outside clue shows the first non-empty letter seen when looking into that row or column from the clue’s side.

• Word
• Grid
• Placement

Goal: Complete each 6×6 Sudoku variant. Rules: - Every row and column must contain the numbers 1–6 exactly once. - In a standard grid, each outlined 2×3 box must also contain 1–6 exactly once. - In a jigsaw grid, each irregular outlined region must contain 1–6 exactly once. - If one or both main diagonals are marked, each marked diagonal must contain 1–6 exactly once. - Apply only the extra regions or diagonals shown on that individual puzzle.

• Sudoku
• Numbers
• Grid
• Observation

Goal: Shade cells to create the reef described by the clues. Rules: - All shaded cells must form one orthogonally connected area. - No 2×2 group of cells may be completely shaded. - The numbers in a clue give the lengths of the separate consecutive shaded groups surrounding that clue. - Separate shaded groups around a clue must have at least one unshaded cell between them. - Clue cells themselves remain unshaded.

• Numbers
• Path
• Logic
• Grid
• Shading

Goal: Deduce the hidden four-digit code. Rules: - Each guess receives feedback for the number of matching digit occurrences. - A black dot means one digit is correct and in the correct position. - A white dot means one remaining digit is correct but in the wrong position. - Feedback dots are not tied to specific positions and may appear in any order. - Each digit occurrence in the secret code may be matched only once per guess; an unmatched occurrence receives no dot.

• Numbers
• Word
• Logic
• Grid
• Shading

Goal: Remove all row and column duplicates by shading cells. Rules: - After shading, no number may appear more than once among the unshaded cells of any row or column. - Shaded cells hide their numbers. - Shaded cells cannot share an edge. - All unshaded cells must form one orthogonally connected area.

• Numbers
• Logic
• Grid
• Shading

Goal: Solve the association clues and complete the crossword. Rules: - Each clue group points to one related answer word. - Use any supplied starting letter and word length to identify the answer. - Place every answer in a slot of the correct length. - Crossing letters must agree in both words, and every slot must be filled.

• Word
• Logic
• Grid
• Placement
• Observation

Goal: Connect all tree nodes into one network. Rules: - Connections are straight and may run horizontally, vertically, or diagonally. - The number inside a node gives its exact total number of connections. - Only one line may connect the same pair of nodes. - Lines cannot cross, overlap, or pass through another node. - Every node must belong to the same connected network.

• Path
• Connection
• 8-Directional

Goal: Find all hidden gopher holes. Rules: - A numbered cell is always safe and cannot contain a hole. - Its number gives the exact count of holes in the up to eight cells touching it horizontally, vertically, or diagonally. - The puzzle also gives the total number of holes in the grid. - Mark every possible cell as either a hole or safe.

• Logic
• Grid
• Placement

Goal: Find all listed words. Rules: - Words may run horizontally, vertically, or diagonally. - Words may be read forward or backward. - Different words may share letters. - If the puzzle includes a hidden-message instruction, read the remaining letters in the stated order.

• Word
• Grid
• Placement
• Observation

Goal: Find the one item that does not match the pattern. Rules: - Compare all items across the full image or grid. - Check shape, color, orientation, pattern, position, and small details. - Exactly one item is the odd one out.

• Visual
• Grid
• Observation

Goal: Find the matching pair. Rules: - Compare every image carefully, including shape, color, orientation, pattern, and small details. - Exactly two images match in every detail. - Mark the identical pair.

• Visual
• Observation

Goal: Reach the exit from the entrance. Rules: - Move through open passages only. - Do not cross walls. - Do not move diagonally through corners. - Trace one continuous route to the exit.

• Path
• Grid
• Observation

Goal: Find the starting path that reaches the target. Rules: - Begin at each marked starting point and follow its line. - When lines cross visually, continue along the same uninterrupted line. - Do not jump or switch to another path at a crossing. - Choose the path that reaches the target rather than a dead end.

• Path
• Visual
• Observation

Goal: Pair every border angler with exactly one fish. Rules: - Each angler’s number gives the exact length of its line, counting the border entry cell and the fish cell. - Lines move horizontally or vertically and may turn. - Lines cannot cross, overlap, share cells, or pass through black cells. - Every fish is used once, and every non-black grid cell belongs to exactly one fishing line.

• Numbers
• Path
• Logic
• Grid

Goal: Find the missing reference item. Rules: - Compare every reference option with the main picture. - Match color, shape, orientation, and distinctive details. - Exactly one reference item does not appear in the picture.

• Visual
• Observation

Goal: Find every domino boundary in the number grid. Rules: - Each domino covers two orthogonally adjacent cells. - Every grid cell belongs to exactly one domino. - Dominoes cannot overlap. - Each unordered number pair in the required domino set must be used exactly once.

• Numbers
• Grid
• Placement
• Observation

Goal: Complete the 6×6 Sudoku grid. Rules: - Each row must contain the numbers 1–6 exactly once. - Each column must contain the numbers 1–6 exactly once. - Each outlined 2×3 box must contain the numbers 1–6 exactly once. - Given numbers are fixed.

• Sudoku
• Numbers
• Grid
• Placement
• Observation

Goal: Create an equation equal to the target value. Rules: - Choose exactly four numbers from the supplied list. - Use each chosen occurrence exactly once. - You may use +, −, ×, ÷, and parentheses. - Do not reuse a number unless that number appears more than once in the list. - The final result must equal the target exactly.

• Numbers
• Math

Goal: Determine each icon’s value and solve the final expression. Rules: - Use the earlier equations to calculate the value of each icon. - Identical icons represent the same value unless the image is visibly changed. - Count repeated icons carefully and notice any changed operators or quantities. - Use the standard order of operations in the final expression.

• Numbers
• Math
• Visual
• Logic
• Grid
• Observation

Goal: Complete every equation in the grid. Rules: - Place each number from 1 to 15 exactly once, unless the puzzle shows a different number range. - Read and solve each horizontal or vertical equation in the direction displayed. - Every completed equation must be mathematically correct. - Given numbers and operators are fixed.

• Numbers
• Math
• Word
• Grid
• Observation

Goal: Complete the 9×9 Sudoku grid. Rules: - Each row must contain the numbers 1–9 exactly once. - Each column must contain the numbers 1–9 exactly once. - Each 3×3 box must contain the numbers 1–9 exactly once. - Given numbers are fixed.

• Sudoku
• Numbers
• Logic
• Grid

Goal: Complete the Sudoku X grid. Rules: - Each row, column, and 3×3 box must contain the numbers 1–9 exactly once. - Each of the two main corner-to-corner diagonals must also contain the numbers 1–9 exactly once. - Given numbers are fixed.

• Sudoku
• Numbers
• Grid

Goal: Complete the star-shaped Sudoku grid. Rules: - Digits cannot repeat on any continuous straight line of cells. - Every line containing nine cells must contain the numbers 1–9 exactly once. - Shorter lines use digits from the allowed range without repetition. - Digits also cannot repeat within any outlined large triangular region. - Given digits are fixed.

• Sudoku
• Numbers
• Logic
• Grid

Goal: Complete the Jigsaw Sudoku or Killer Sudoku shown. Rules: - In both variants, each row and column must contain the numbers 1–9 exactly once. - Jigsaw Sudoku: each irregular outlined region must contain 1–9 exactly once; these regions replace the standard 3×3 boxes. - Killer Sudoku: each standard 3×3 box must contain 1–9 exactly once. - Killer Sudoku cages must add to the small clue in the cage, and a digit cannot repeat within a cage.

• Sudoku
• Numbers
• Math
• Logic
• Grid
• Placement

Goal: Shade the correct cells and reveal the hidden picture. Rules: - Each clue number gives the length of one consecutive shaded block in that row or column. - Multiple clue numbers appear in the same order as their shaded blocks. - Separate shaded blocks must have at least one unshaded cell between them. - Cells that cannot be shaded should be marked as empty.

• Numbers
• Logic
• Grid
• Shading

Goal: Fill all white cells so every sum clue is satisfied. Rules: - Use digits 1–9 in the white cells. - Each clue gives the sum of the consecutive white cells extending from it horizontally or vertically. - A digit cannot repeat within the same sum run. - Different crossing runs share the digit in their common cell.

• Numbers
• Math
• Visual
• Grid

Goal: Locate the complete hidden fleet. Rules: - Place every ship shown in the fleet list exactly once. - Ships are straight and run horizontally or vertically. - Row and column clues show the exact number of ship segments in each line. - Different ships cannot touch, even at a corner. - Any given ship parts or water cells are fixed.

• Numbers
• Logic
• Grid
• Placement
• Observation

Goal: Place and pair one tent for every tree. Rules: - Every tent must be paired with exactly one tree directly beside it horizontally or vertically. - Every tree must be paired with exactly one tent. - Adjacency and pairing are different: a tree may be next to more than one tent, and a tent may be next to more than one tree, but each belongs to only one pair. - Tents cannot touch one another horizontally, vertically, or diagonally. - Row and column clues show the exact number of tents in each line.

• Numbers
• Grid
• Placement

Goal: Draw one single closed loop along the grid lines. Rules: - The loop cannot branch, cross itself, overlap, or have loose ends. - A numbered cell shows exactly how many of its four sides belong to the loop. - Blank cells have no direct numerical requirement. - All drawn segments must be part of the same loop.

• Numbers
• Path
• Logic
• Grid

Goal: Make the equation mathematically correct. Rules: - Move exactly the number of matchsticks stated by the puzzle. - A move consists of taking one existing stick and placing it in a new position; rotation is allowed unless the puzzle says otherwise. - Every resulting digit and operator must be valid. - Do not remove a stick without reusing it unless removal is specifically allowed.

• Numbers
• Math
• Grid
• Observation

Goal: Determine all one-to-one matches across the listed categories. Rules: - Each item matches exactly one item in every other category. - Use the clues to mark definite matches and definite exclusions. - Combine direct clues with deductions created by earlier marks. - Complete the grid so every item has one consistent set of matches.

• Logic
• Grid
• Observation

Goal: Complete the circular Sudoku grid. Rules: - Each complete ring must contain every allowed digit exactly once. - Each radial slice from the center to the outside edge must contain every allowed digit exactly once. - Any outlined region must also contain every allowed digit exactly once. - Given digits are fixed.

• Sudoku
• Numbers
• Logic
• Grid
• Observation

Goal: Find all required differences between the two pictures. Rules: - Compare the pictures carefully, section by section. - Look for missing or added objects, moved details, color changes, size changes, and altered shapes. - Count each distinct change once. - Stop when you have found the number of differences stated by the puzzle.

• Visual
• Observation

Goal: Complete the crossword using the picture clues. Rules: - Identify the word represented by each numbered picture. - Enter that answer in the row or column carrying the same number. - The answer must fit the available number of cells. - Crossing letters must agree in both words.

• Word
• Visual
• Grid

Goal: Cover the grid with rays from the numbered suns. Rules: - Rays extend horizontally or vertically from a sun. - The number on a sun gives the total number of grid cells covered by that sun’s rays. - Every empty cell must be covered by exactly one ray. - Rays cannot overlap, cross through another sun, or cover a cell assigned to a different sun.

• Logic
• Grid
• Placement

Goal: Complete the arithmetic Latin-square grid. Rules: - Each row and column must contain every number from 1 to N exactly once. - The numbers in each outlined nest must produce the target using the operation shown. - For subtraction or division nests, the numbers may be used in whichever order gives the target. - A one-cell nest contains the target number itself.

• Numbers
• Math
• Logic
• Grid

Goal: Place all required flowers in the grid. Rules: - Each row and column must contain exactly the number of flowers shown by its clue. - Each outlined garden zone must contain exactly its stated number of flowers. - Flowers cannot touch horizontally, vertically, or diagonally. - All row, column, and zone clues must be satisfied at the same time.

• Numbers
• Grid
• Placement

Goal: Place A, B, and C in the hexagonal grid. Rules: - Every complete line in each of the three grid directions must contain A, B, and C exactly once. - All remaining cells stay empty. - An outside clue shows the first non-empty letter seen when looking along that line from the clue’s edge. - Use clues from all three directions together.

• Word
• Logic
• Grid
• Placement

Goal: Complete the balanced + and − pattern. Rules: - Each row and column must contain the same number of + and − signs. - No three identical signs may appear consecutively in any row or column. - No two completed rows may be identical. - No two completed columns may be identical. - Given signs are fixed.

• Logic
• Grid
• Placement

Goal: Complete every outlined region. Rules: - A region containing N cells must contain each number from 1 to N exactly once. - Equal numbers cannot touch horizontally, vertically, or diagonally, even when they belong to different regions. - Given numbers are fixed.

• Numbers
• Logic
• Grid
• Placement

Goal: Set every border arrow direction so all numbered clues are satisfied. Rules: - Each border arrow points along a straight line into the grid. - A numbered cell shows the exact number of arrows whose line of sight points directly at that cell. - Any pre-placed arrow directions are fixed and count toward the clues. - Choose every remaining arrow direction so all clues are correct at the same time.

• Numbers
• Grid
• Placement
• Observation

Goal: Locate all hidden cloud rectangles. Rules: - Each cloud is a solid rectangle of cells, normally at least 2×2. - Clouds cannot overlap or touch one another horizontally, vertically, or diagonally. - Row and column clues show the exact number of cloud cells in each line. - Every shaded cell must belong to one cloud rectangle.

• Numbers
• Logic
• Grid
• Shading

Goal: Complete the Mosaic Matrix with the digits 1–9. Rules: - A merged colored shape is one logical cell: every physical square in that shape shares the same value. - Every unmerged square is one logical cell. - Counting merged shapes as single cells, each row, column, and outlined 4×4 block must contain the digits 1–9 exactly once. - All logical cells of each color across the grid must also contain the digits 1–9 exactly once. - Given digits are fixed.

• Sudoku
• Numbers
• Logic
• Grid
• Variant

Goal: Place all stars so every arrow and edge clue is satisfied. Rules: - An arrow looks along a straight line in the direction it points. - Exactly one cell in that arrow’s line of sight must contain a star. - Every placed star must be seen by exactly one arrow. - Edge clues show the exact number of stars in each row and column.

• Logic
• Grid
• Placement
• Observation

Goal: Complete the 9×9 Line Sudoku. Rules: - Each row, column, and 3×3 box must contain the numbers 1–9 exactly once. - The winding line passes through exactly nine cells. - The nine cells touched by the line must also contain the numbers 1–9 exactly once, in any order. - Given numbers are fixed.

• Sudoku
• Numbers
• Logic
• Grid
• Variant

Goal: Deduce the single hidden code that satisfies all feedback clues simultaneously. Rules: - Each row shows a sample code attempt alongside its exact feedback dots. - A black dot means one digit is correct and in the exact right position. - A white dot means one digit is correct but placed in the wrong position. - Compare the overlapping feedback across all rows to eliminate impossible numbers and identify the true secret sequence.

• Numbers
• Logic
• Grid
• Observation