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Head scratcher

Games that want you to think rather than react. Nothing here has a timer breathing on you; the pressure comes from the board itself, and from knowing the answer is in there.

BathyalTangle A deep-sea pressure puzzle. Fifty-five dives into the crushing dark. Hold the tile to play it here Gravity FlipTangle Flip gravity to roll a ball home. Twenty solver-checked levels. Hold the tile to play it here Fuel FoolErrand Pick the right energy for the wrong vehicle. Thirty bad decisions. Hold the tile to play it here Water SortTangle Pour water until every tube is one colour. Twenty solved levels. Hold the tile to play it here Block Rotate FitTangle Rotate falling blocks into clean lines. Twenty levels, rising debris. Hold the tile to play it here Card Flip DuelTangle Flip and match pairs from memory. Twenty boards, shuffles included. Hold the tile to play it here Pattern RecallTangle Watch the sequence, play it back. Four, six, then nine panels. Hold the tile to play it here Lunar Base RepairRescue New Restore the base before its life support runs down. Hold the tile to play it here Deep Cave ExplorerRescue New Find relics beyond the dark passages and return safely. Hold the tile to play it here Airport Ground ControlShift New Clear aircraft across a busy taxiway without conflict. Hold the tile to play it here Train Signal MasterShift New Set the points and give trains a safe path through the junction. Hold the tile to play it here Snack Stack CafeShift New Serve the required number of exact snack orders. Hold the tile to play it here Potion Shop RushShift New Serve the required number of correct potions. Hold the tile to play it here Mini Golf QuestTurf New Put the ball into the hole within the stroke limit. Hold the tile to play it here Gem Slide PuzzleTangle New Reach the score target by matching gems. Hold the tile to play it here Laser Mirror LabTangle New Power the crystal in each laser room. Hold the tile to play it here Treasure Tile PathTangle New Open the required chests before your moves run out. Hold the tile to play it here Gravity SwitcherTangle New Same path, different gravity, an entirely new solution. Hold the tile to play it here Arcane Battle ChessTangle New Command your pieces, protect your king, checkmate the opposing army. Hold the tile to play it here Museum Heist GuardTangle New Patrol the galleries and stop thieves before artifacts leave. Hold the tile to play it here Haunted ElevatorTangle New Find the required relics, the key and the battery; press Escape on… Hold the tile to play it here Shadow DetectiveTangle New Read the shadows, connect the clues, name the answer. Hold the tile to play it here Aegis ShadowTangle New Breach the perimeter, clear the patrols, reach extraction. Hold the tile to play it here

Pattern Recall is the shortest of these at about 6 minutes. Bathyal is the one to open when you have longer — nearer 20.