OPENERS · LESSON 1 OF 6
Why openers?
AFTER THIS GUIDEYou can choose an opening plan from the available pieces and name the first decision after its memorised part ends.
A short plan for a predictable starting point.
An empty board gives every game a familiar beginning. With seven-bag randomisation, the first bag contains one of each piece, but their order changes. An opener uses that limited situation to build a known attack or Perfect Clear opportunity.
The order matters because lower support often has to be placed before a piece above it. Hold lets you delay one piece, but it cannot freely rearrange the entire bag. A target image describes where pieces belong, not whether your current order can build it.
Learning an opener has three parts: recognise a compatible start, execute a reachable route, and understand the board left afterwards. Memorising the middle part alone works only until the first unfamiliar bag.
Start with one family rather than a long list. A modest opener you can leave safely is more useful practice than a large attack whose residue you do not understand. In multiplayer, attack timing and incoming garbage can also change whether the full route is sensible.
Turn a target picture into a set of jobs
Read the lowest pieces
The TKI target below shows a foundation, supported stacking pieces and the finishing T. Identify which cells would be impossible to fill if you placed the roof first.
Check the actual queue
In Openers mode, choose TKI. Compare the first pieces and Hold with the target. Use the suggested sequence to see one supported order; do not infer the order from piece colours.
Stop after the attack
Once the Double clears, describe the remaining surface. A first attack is the beginning of a game, not a guarantee about its next bags.
Common mistakes
Learning an image as a universal script
The same final shape can have several legal orders. Some starts need a variant or mirror. Inspect the visible sequence.
Holding the wrong piece out of habit
The piece in Hold must have a specific later job. Otherwise it may block the only reorder that makes the foundation reachable.
Never practising the exit
End each attempt by describing the residue, even if the trainer marks the opening complete.
TAKE IT TO THE BOARD
Five starts. Explain the first commitment.
- Open Openers, choose TKI and set Gravity Off.
- For five attempts, name the foundation piece and what Hold is reserving. Read the suggested sequence when unsure.
- At completion, identify a well, a potential T slot or a cleanup need on the remaining board. Record that observation before starting again.
What counts as progress? You recognise why a route works for its order instead of treating the first seven pieces as interchangeable.
Open practice ↗Opens the mode. Set Gravity and NEXT yourself; your current settings are kept.
Keep these terms nearby
Further reading
For setup variations and additional examples, see FOUR: TKI. The practice task here is original to Stacking Lab.