Cube turns: carry labels through every roll
Track labelled faces through explicit forward, right and yaw turns. Full examples explain order, fixed positions and the limits of six written tasks.
This public guide explains one part of the original word-and-coordinate practice. Every complete attempt shows all five topic counts and all five full guides. It is not a private attempt, ranked outcome, percentile or general spatial-ability classification.
Face labels stay attached while positions change
The cube starts with T on top, B below, F in front, K behind, R on the right and L on the left. Those letters remain attached to their original physical faces. After a roll, T need not be on top; calling the new top T would erase the task. The wording defines each movement as a cycle of named positions and names the stationary pair. Use those stated cycles rather than an unannounced viewing side or a vague clockwise picture of a cube.
A fresh sequence uses all three turn kinds
Start from that initial cube and perform right, forward, then yaw-right. After the right roll, L is on top and B is on the left. The forward roll brings K to the top while B remains left. The yaw-right turn then carries that left face B to the front and leaves the top K unchanged. The final top is K and front is B. Tracking only the final move from the initial arrangement would produce a different answer because the previous two moves changed which labels occupy the positions.
Update a six-position record once per move
Write a row for top, bottom, front, back, right and left, then copy the labels into a new row according to the stated cycle. Read all source labels from the old row before writing the new one, so an early replacement does not overwrite a label needed later in the same move. Carry the stationary pair unchanged. Every completed row must contain the same six distinct labels once each. A duplicate or missing label is a bookkeeping error, not a legitimate cube orientation.
Check cycles and opposite pairs
Four same-direction quarter-rolls about the same fixed axis return every face to its original position. Two such rolls make a half-turn rather than cancel. A rigid rotation also preserves which labels are opposite: T stays opposite B, F opposite K and R opposite L, although those pairs move to different positions. These facts can check a proposed record, but opposite pairs alone may fit more than one orientation. Use the full sequence to settle the particular queried face and treat the invariants as supporting checks.
Different axes make order matter
A forward roll and a right roll act on different sets of positions. Exchanging their order can change the final arrangement, even when both descriptions contain one of each move. Keep the exact order and the named target position visible: a question asking for the left face cannot be answered by a perfectly tracked top face. If the sequence repeats a move, apply it to the current row rather than resetting the cube. The bank uses explicit cycles to make these written operations checkable without relying on proprietary diagrams.
Interpret the six answers without a trait label
The cube sub-count is correctness on these six original label-tracking questions. It combines reading the cycles, maintaining a record and reasoning about positions; it is not a pure measure of vivid mental imagery, memory or overall intelligence. A total does not diagnose why an individual move was missed. Use that item’s working to choose a new example. All complete attempts get all five topic guides and every answer explanation, without assigning a spatial type, percentile, hiring result or equipment-handling certification.
Practise fresh sequences with explicit definitions
For a fresh paper example, change the order of two moves or ask for a different final position while keeping the same initial labels and movement definitions. Predict the stationary pair first, then update all six positions and check for duplicates. Sketches and written tables are allowed; there is no timer. Repeating the fixed bank can increase familiarity with its answers, so a changed count does not establish broader training transfer. The useful target is a sequence whose intermediate rows and final queried position you can explain.