בלוג גרג פאזלים

A cubic puzzle box with its upper corner cut away, packed with blue cubic pieces visible through the opening

Hiroshi Fujino and the Puzzles That Must Not Fall

A customer who won a giveaway, then sent me a puzzle he had designed. Hiro-san's Ochinai boxes debuted here, worldwide, and the rule behind them is brutal.

Hiroshi Fujino and the Puzzles That Must Not Fall

A customer who won a giveaway, then sent me a puzzle he had designed. Hiro-san's Ochinai boxes debuted here, worldwide, and the rule behind them is brutal.

Three small mechanical puzzles grouped on a pale wooden desk: a two-piece pyramid, a cube and a tray puzzle

Desk Puzzles: What Belongs Next to a Keyboard

A four-hour puzzle on your desk is not a desk puzzle. The one-hour rule, what survives being interrupted, and the ten that actually work.

Desk Puzzles: What Belongs Next to a Keyboard

A four-hour puzzle on your desk is not a desk puzzle. The one-hour rule, what survives being interrupted, and the ten that actually work.

A shallow tray holding three flat cyan geometric tiles with one piece left outside and a visible gap

Geometry Puzzles: Nothing Hidden, Still Impossible

No mechanism, no hidden compartment, nothing to discover. Every piece is in plain sight and you still cannot do it. The geometry puzzle, explained.

Geometry Puzzles: Nothing Hidden, Still Impossible

No mechanism, no hidden compartment, nothing to discover. Every piece is in plain sight and you still cannot do it. The geometry puzzle, explained.

Three beginner mechanical puzzles on marble: a two-piece pyramid, a six-piece star, and a three-peg Tower of Hanoi

Best Mechanical Puzzles for Kids, by Age

Most mechanical puzzles are built for adults who enjoy being stuck. These are the ones that genuinely suit a child, with honest ages for each.

Best Mechanical Puzzles for Kids, by Age

Most mechanical puzzles are built for adults who enjoy being stuck. These are the ones that genuinely suit a child, with honest ages for each.

Two-piece turning interlocking cube pulled apart, showing the interleaving prongs of each half

How to Solve a Turning Interlocking Cube

Every face is solid and nothing moves. The method for finding the one rotation a Turning Interlocking Cube needs - on any TIC, not just one.

How to Solve a Turning Interlocking Cube

Every face is solid and nothing moves. The method for finding the one rotation a Turning Interlocking Cube needs - on any TIC, not just one.

Wooden birch escape-room puzzle boxes: a cube with brass dials, a pyramid, and an open box

Escape Welt Puzzle Boxes: Every Solution on Video

Six German escape-room boxes, each solved start to finish on camera. The solutions first, then what the format is and which box to start with.

Escape Welt Puzzle Boxes: Every Solution on Video

Six German escape-room boxes, each solved start to finish on camera. The solutions first, then what the format is and which box to start with.