The QiYi Kong Ming Lock Blockade takes the interlocking mechanic characteristic of the Kong Ming Lock series and presents it with a compact and well-resolved look. Its name refers to the feeling of blockage you perceive when trying to move the pieces without knowing the correct sequence, something very familiar to anyone who has tinkered with this type of puzzle before.

As in the rest of the family, the goal is to separate the components and then return them to their original position. There are no turns or hidden surprises: everything needed to solve it is in plain sight, though the first approach is usually more trial than strategy. As you get to know the mechanism, the process becomes cleaner and more controlled, and with practice you can disassemble and assemble it in a few minutes.

Manufacturing is in ABS plastic, with a silver metallic finish that gives it a premium look for the size and range it sits in. The pieces fit firmly and don't dance once assembled, as is usual in QiYi models. It is light enough to handle comfortably and solid enough to carry loose in a backpack without worrying that it will open by accident.

It fits well both as a curious gift for someone who enjoys puzzles and for enthusiasts who want to complete their Kong Ming Lock collection with one more model in the series. It is a friendly challenge, suitable for working patience and observation without becoming frustrating. Its difficulty is not the highest in the catalogue, but enough for the first solve to have a certain sense of merit.

As a small usage recommendation, it is worth approaching the disassembly calmly and without forcing any piece. If something doesn't move, it's because it's not yet time to take it out; you have to look first for another piece that needs to move. That approach, which may seem obvious, is actually what sums up the philosophy of almost all Kong Ming Lock puzzles.

• QiYi Kong Ming Lock series, Blockade model
• Made of ABS plastic
• Silver metallic finish with premium feel
• Disassembly and reassembly challenge
• Firm fit without tolerances

• Kong Ming Lock Blockade mechanical puzzle
• QiYi brand
• Quality ABS plastic
• Silver metallic finish
• Disassembly and reassembly challenge