Brainstretch: Brain Games

Brainstretch is a collection of brain games: logic puzzles, number puzzles, spatial puzzles, chess puzzles and card solitaire, rebuilt with a consistent visual language and careful controls for phones.

28 games in one app:

Logic puzzles
• Sudoku: fill every row, column and 3×3 box with the digits 1–9.
• Griddler (Nonogram): use the row and column counts to reveal a hidden picture.
• Light Up (Akari): place lamps until every white cell is lit, with no two lamps shining on each other.
• Tents (Tents and Trees): place one tent beside each tree so the row and column counts match.
• Stranded (Hitori): black out duplicate numbers while keeping every white cell connected.
• Binary (Takuzu): fill the grid with 0s and 1s so each row and column is balanced and unique, with no three in a row.
• Towers (Skyscrapers): build a skyline where each edge clue counts the towers you can see from that side.
• Minefield: clear every safe cell without setting off a mine.
• Hunch: work out a hidden 4-color code from the feedback after each guess.

Number puzzles
• Cagework: fill the grid so each cage adds up to its target and no number repeats in a row or column.
• Matchsticks Math: move matchsticks to make the equation true.
• 2048: slide and merge tiles to reach 2048.

Spatial puzzles
• Bridges (Hashi): connect the islands so each one has its stated number of bridges.
• Pipes: rotate the pieces until every pipe joins one connected network.
• Drain: rotate the pipes so the water reaches the drain from the source.
• Planarity: drag the points until no two lines cross.
• Matchstick Shapes: rearrange matches to make the number of shapes the goal names.
• Glide: slide the orb across the board, planning every stop, to reach the goal.

Memory
• Mimic: watch the sequence, then repeat it back as it grows each round.

Classic games
• Chess puzzles: start from a position already in play and find the winning line.
• Mahjong solitaire: clear the layout by matching pairs of free tiles.
• Peg Solitaire: jump pegs over each other until a single peg is left.

Card solitaire
• Klondike Solitaire: the classic, with draw one or draw three.
• Spider Solitaire: build runs in one suit, with 1, 2 or 4 suits.
• FreeCell Solitaire: every deal can be solved.
• Pyramid Solitaire: remove pairs of cards that add up to 13.
• Yukon Solitaire: move any face-up group between columns.
• Forty Thieves Solitaire: two decks, moving one card at a time.

What you’ll find:

• Clear boards and responsive controls designed for phones
• Multiple difficulties and settings in supported games
• Hints and rule guidance in supported games
• Saved games and history when you sign in
• A consistent, uncluttered experience across the collection

Brainstretch focuses on faithful rules and thoughtful details. Start a game, return to unfinished boards and explore different kinds of brain games from one home.

An internet connection is required. Brainstretch is intended for adults aged 18 and over.