How Puzzle works

How to play: Rebuild the image by moving each sliced tile back to its original position.

Basic rules: The puzzle is solved when every tile occupies its correct row and column.

Controls: Drag a tile onto another tile or click two tiles to swap them.

Difficulty: Very Easy 3×3, Easy 5×5, Normal 8×8, Hard 10×10, Very Hard 12×12, and Elite 16×16.

Modes: Normal play is practice-friendly. Competition uses controlled seeds, trusted validation, and paid-equivalent access.

How to play: Pick pieces from the bag and place them onto the clean empty board.

Basic rules: Every piece must be in its correct square cell and rotated to 0 degrees. A piece exists either in the bag or in one board cell, never both.

Controls: Drag or tap pieces between the bag and board. Use the Rotate Left and Rotate Right buttons or a two-finger twist; the mouse wheel keeps normal page scrolling.

Difficulty: Very Easy 3x3, Easy 5x5, Normal 8x8, Hard 10x10, Very Hard 12x12, and Elite 16x16.

Modes: Normal play is practice-friendly. Competition uses controlled seeds, trusted validation, and paid-equivalent access.

How to play: Find every hidden word in the letter grid.

Basic rules: Words follow allowed straight directions for the selected difficulty.

Controls: Drag across letters or click a start and end cell.

Difficulty: Grid size, word count, diagonal paths, and reversed words increase with difficulty.

Modes: Normal play is practice-friendly. Competition uses controlled seeds, trusted validation, and paid-equivalent access.

How to play: Solve Across and Down clues in a black-and-white crossword grid.

Basic rules: Every filled cell must match the answer crossing through that square.

Controls: Click a cell or clue, type letters, use arrows to move, and submit the finished grid.

Difficulty: Larger grids and harder clue vocabulary appear on higher difficulties.

Modes: Normal play is practice-friendly. Competition uses controlled seeds, trusted validation, and paid-equivalent access.

How to play: Solve crossword clues that include wordplay as well as a definition.

Basic rules: Answers must satisfy the cryptic clue and the crossing grid letters.

Controls: Use the same crossword controls while reading cryptic clue markers.

Difficulty: Higher difficulties reduce direct help and use more demanding wordplay.

Modes: Normal play is practice-friendly. Competition uses controlled seeds, trusted validation, and paid-equivalent access.

How to play: Fit every word from the bank into the matching grid slots.

Basic rules: Words must match slot length, crossing letters, and the correct private slot assignment.

Controls: Select or drag a bank word into a highlighted slot. A completed invalid placement or a fully filled incorrect check records one server-validated mistake, while slot browsing, deselecting, cancelling, and valid placements do not.

Difficulty: More words with similar lengths and tighter crossings appear as difficulty rises.

Modes: Normal play is practice-friendly. Competition uses controlled seeds, trusted validation, and paid-equivalent access.

How to play: Solve clue answers that may need to be entered in reverse.

Basic rules: Each row must match the expected normal or reversed answer.

Controls: Type into the letter boxes and follow the row direction label.

Difficulty: Higher difficulties use longer answers, fewer reveals, and stricter reverse cues.

Modes: Normal play is practice-friendly. Competition uses controlled seeds, trusted validation, and paid-equivalent access.

How to play: Reconstruct target words from smaller fragments.

Basic rules: A target slot is correct only when its fragments combine into the original word.

Controls: Click or drag fragments into slots, then remove or rearrange them as needed.

Difficulty: Higher difficulties add more fragments and reduce guide information.

Modes: Normal play is practice-friendly. Competition uses controlled seeds, trusted validation, and paid-equivalent access.

How to play: Restore the image by sliding numbered image tiles into the single open space.

Basic rules: Only a tile next to the empty slot can move, and the puzzle is solved when the tile order matches the original image.

Controls: Click or tap an adjacent tile to slide it into the open slot.

Difficulty: Higher difficulties increase the square grid from 2x2 up to 8x8 and use longer solvable shuffles.

Modes: Normal play is practice-friendly. Competition uses controlled seeds, trusted validation, and paid-equivalent access.

How to play: Complete a 9x9 number grid.

Basic rules: Every row, column, and 3x3 box must contain the numbers 1 through 9 once.

Controls: Select a cell and use the keyboard or number pad.

Difficulty: Higher difficulties start with fewer givens.

Modes: Normal play is practice-friendly. Competition uses controlled seeds, trusted validation, and paid-equivalent access.

How to play: Complete Sudoku logic using color tokens instead of digits.

Basic rules: Every row, column, and 3x3 box must contain each color once.

Controls: Select a cell and choose a color swatch.

Difficulty: The number of starting color clues decreases on harder levels.

Modes: Normal play is practice-friendly. Competition uses controlled seeds, trusted validation, and paid-equivalent access.

How to play: Decode numbered cells into letters.

Basic rules: Each number maps to one letter, and the decoded words must match the hidden solution.

Controls: Select a number and assign a letter from the alphabet panel.

Difficulty: Fewer starter letters are revealed on higher difficulties.

Modes: Normal play is practice-friendly. Competition uses controlled seeds, trusted validation, and paid-equivalent access.

How to play: Trace connected letter paths to spell target words.

Basic rules: Paths must be continuous and cannot reuse a cell; found words are revealed only after an accepted path.

Controls: Draw or click through adjacent cells, then submit the current path.

Difficulty: Larger grids, more words, and diagonal movement arrive on harder levels.

Modes: Normal play is practice-friendly. Competition uses controlled seeds, trusted validation, and paid-equivalent access.

How to play: Play a complete, legal game of Chess against the selected opponent.

Basic rules: Legal moves, check, checkmate, draw rules, castling, en passant, and promotion are enforced by the server.

Controls: Select a piece, then select one of its highlighted legal destination squares. Choose a promotion piece when prompted.

Difficulty: Higher difficulties give the opponent more thinking time and a stronger move-selection profile.

Modes: Normal play is practice-friendly. Competition uses controlled seeds, trusted validation, and paid-equivalent access.

How to play: Place stones to surround territory and capture opposing groups.

Basic rules: Groups need liberties to remain on the board. Suicide and repeated positions are not allowed; two consecutive passes finish scoring.

Controls: Tap or click an empty intersection to place a stone. Use Pass only when you do not want to place a stone.

Difficulty: The board grows from 9×9 through 19×19 and the opponent receives stronger search settings at higher difficulties.

Modes: Normal play is practice-friendly. Competition uses controlled seeds, trusted validation, and paid-equivalent access.