Latest textual revision: April 19, 2010
To make the regulations easier to read we use 'he' where the reader should read 'she or he'.
The use of the words 'must', 'must not', 'should', 'should not' and 'may' comply with RFC 2119
For questions and feedback, please contact the WCA Board
Information on internet
Website of World Cube Association: www.worldcubeassociation.org
Original source of the WCA regulations: www.worldcubeassociation.org/regulations
WCA regulations in PDF format
by Shihang Wang
. Version 2009.
by Florian Weingarten. Version 2009.
by Luca Feliciotto. Version 2009.
by Masayuki Akimoto
, Hiroki Akiyama, Takeshi Akuzawa, Satoshi Idekawa, Toru Omura, Kentaro Nishi and Ryosuke Mondo. Version 2009.
by Stefan Lapicki. Version 2009.
by Pedro Santos Guimarães
, Carlos Alberto de Alcântara Jr.
and Rafael Werneck Cinoto. Version 2009.
by Anton Rostovikov. Version 2009.
by Alexandre Toledo Guillén and Carlos Angosto
. Version 2009.
by Chonlathep Kitsinthopchai. Version 2009.
by Petri Vanhala. Version 2008.
by Pierre Calendini and Gilles Roux
. Version 2008.
by Olivér Nagy
. Version 2008.
by Park Joon-Ho. Version 2008.
by Josef Jelinek
. Version 2006 v1.
|1a)||A competition must have the following officials: an organisation team (with one or more members), a WCA delegate, a main judge per event, judges, scramblers and score takers.|
|1b)||The organisation team of a competition is responsible for:|
- 1b1) Making all arrangements before and during the competition.
- 1b2) Making a printed or electronic version of the WCA regulations available at the competition.
|1c)||The WCA delegate for a competition is responsible for:|
- 1c1) Reporting to the WCA Board about whether the full WCA regulations were followed during the competition. Reports must be available within one week after the competition.
- 1c2) Reporting to the WCA Board about the overall course of the competition, and about incidents. Reports must be available within one week after the competition.
- 1c3) Sending the competition results to the WCA Board. Results should be available at the end of the last day of the competition.
- 1c4) Sending corrections to the competition results to the WCA Board. Corrections should be available within one week after the competition.
- 1c5) Advising the other officials when needed.
- 1c6) Approving all events and event formats of a competition, before the competition starts and when changes are needed during the competition.
- 1c7) Decisions on disqualification of a competitor for the competition, as described in other articles.
- 1c8) Providing the scrambles.
|1d)||Each event must have one main judge. The main judge for an event is responsible for:|
- 1d1) Making sure that the regulations are followed.
- 1d2) Decisions on disqualification of a competitor for an event, as described in other articles.
- 1d3) Decisions on starting a round later or earlier than scheduled. In case of changes in the time schedule, there should be a clear announcement to all competitors.
|1e)||Each event must have one or more judges.|
- 1e1) A judge for an event is responsible for executing the procedures of the event.
- 1e2) All competitors should be available for judging, if needed by organisation team. Penalty: disqualification of the competitor for the competition.
|1f)||Each event (except for puzzles that are not scrambled) must have one or more scramblers.|
- 1f1) A scrambler for an event is responsible for applying the scramble sequences to the puzzles.
- 1f2) All competitors should be available for scrambling, if needed by organisation team. Penalty: disqualification of the competitor for the competition.
|1g)||Each event must have one or more score takers.|
- 1g1) A score taker for an event is responsible for registering the event results.
- 1g2) Changes to the score sheets must only be made with consent of the main judge.
|1h)||Competitors can be divided into groups to handle large events or to enable competitors to help with scrambling or judging.|
- 1h1) Competing judges/scramblers for a round must not judge or scramble in their own group, until after they have completed all their solves for the round.
- 1h2) Groups must have different scramble sequences.
|1i)||The WCA delegate (before the competition starts) and main judge (before the event starts) must be announced to the competitors.|
|1j)||All officials may compete in the competition, but a main judge for an event must not compete in the event unless the WCA delegate is also the main judge.|
|1k)||Officials can have several roles combined (organisation team, WCA delegate, main judge, judge, score taker, scrambler).|
|2a)||Any person may be a competitor during a competition, if he:|
- 2a1) accepts the WCA regulations;
- 2a2) meets the competition requirements, which must be clearly announced before the competition;
- 2a3) is not suspended by WCA Board.
|2b)||Competitors younger than 18 must first ask their parent(s)/guardian(s) for permission.|
|2c)||Registrants must provide all required information (at least: name, country, date of birth, gender, contact information, selected events) for their registration to be considered complete.|
|2d)||All information (except: name, country, date of birth, gender, selected events and competition results) must be used for the competition only, and may only be given to other organisations/persons after permission from the competitor.|
|2e)||Competitors must be able to show a passport/id-card during registration at the location to prove their identity.|
- 2e1) Competitors may represent the country that they have the nationality of.
- 2e1a) The eligible countries are defined by Wikipedia List of sovereign states ("Internationally recognized sovereign states" and "Other states").
- 2e2) Competitors with more than one nationality may change representing a country in their first competition of a calendar year.
|2f)||Competitors must obey venue regulations and conduct themselves in a manner considerate of others at all times during the competition and while at the competition venue.|
|2g)||Competitors must remain quiet when inside the designated competition area. Talking is permitted, but must be kept at a reasonable level, and away from those competing.|
|2h)||Competitors must be fully dressed. Competitors may dress in jeans, pants, shorts, slacks, skirts, foot-wear, T-shirts or dress shirts. Hats may be worn. Clothes must not display vulgar language or have inappropriate pictures.|
|2i)||While competing, competitors must not use sound equipment, other electronic equipment (like walkmans, dictaphones or additional lighting).|
|2j)||Disqualification of a competitor for an event may be enforced by the main judge of an event if a competitor fails to show up in time for a round of an event.|
|2k)||Disqualification of a competitor for a competition may be enforced by the WCA delegate for the following reasons:|
2k6) The WCA Board may temporarily suspend a competitor, if the WCA Board decides that the competitor discredits the community by behaviour described in article 2k2, 2k3, 2k4 or 2k5.
- 2k1) competitor fails to show up in time for registration for the competition;
- 2k2) competitor is suspect of cheating or defrauding the officials during the competition;
- 2k3) competitor behaves in a way that is unlawful, violent or indecent, or intentionally damages venue facilities or anyone's personal property within the venue;
- 2k4) competitor interferes or becomes a blatant distraction to others during the competition;
- 2k5) competitor refuses to abide by any of the WCA regulations during the competition.
|2l)||Disqualification occurs immediately or after warning based on the nature of the infraction.|
|2m)||Competitors are not eligible for any refund of any expenses they incurred to be part of the competition as a result of disqualification.|
|2n)||Competitors may dispute a ruling in verbal form to the WCA delegate.|
|2o)||Disputes are only possible during the competition, within 30 minutes after the disputed incident happened, and before the next round of the event has started.|
|2p)||The dispute must be handled by the WCA delegate before the next round of the event has started.|
|2q)||Disputes are only possible within the parameters of the discretion of the organisation team. No disputes are possible regarding the WCA regulations.|
|2r)||The competitor must accept the final ruling of the WCA delegate. Penalty: disqualification of the competitor for the competition.|
|2s1)||For competitors with hearing disabilities, judges may replace the vocal instructions with hand signals.|
|2s2)||For competitors with physical disabilities, judges may give help with starting and stopping the timer.|
|2t)||Before the competition all competitors should make themselves familiar with the WCA regulations.|
|3a)||Competitors must bring and use their own puzzles. Competitors may borrow puzzles from other competitors, although both competitors must be ready to compete when they are called for to do so.|
|3b)||Puzzles must be in reasonable working order, so that normal scrambling is possible.|
|3c)||Competitors must use any colour scheme for cube puzzles, as long as the puzzles show one colour per face in solved state. For other puzzles competitors must use any variation that has the same moves, positions and solutions as the original puzzle.|
|3d)||Twisty Puzzles must either have coloured stickers, coloured tiles, textures or painted colours.|
|3d1)||Puzzles using textures must have different colors on each face to aid in scrambling and judging.|
|3e)||The colours of puzzles must be solid, the same per colour, and clearly distinct from other colours.|
- 3e1) The stickers/tiles/textures/paint may show an image (in one colour), as long as all stickers/tiles/textures/paint of a colour have the image and the same image.
|3f)||Stickers/tiles/textures/paint must not be thicker than 1.5 mm, or the generally available thickness for non cube puzzles.|
|3g)||Puzzles may be made smoother internally by sanding or using any lubricant.|
|3h)||No modifications are allowed that enhance the basic concept of a puzzle. Some examples of enhancing the basic concept are: new moves are possible, normal moves are impossible, more pieces are visible, colours on the backside of the puzzle are visible, moves are done automatically, more or other solved states.|
|3i)||Any modifications to a puzzle that result in poor performance or results by a competitor are not grounds for additional attempts in a event.|
|3j)||Puzzles must be clean and must not have any textures, markings, elevated pieces, damages, or other differences that distinguish one piece from a similar piece.|
|3k)||Puzzles must be approved by a judge before use in the competition.|
|3l)||Cube puzzles must have at most one logo. For Rubik's Cube or bigger cube puzzles the logo must be placed on one of the centre pieces.|
- 3l1) Colourless logos (max. 1 logo per colour) that are engraved are not considered as logos.
|3m)||All puzzle and puzzle part brands are allowed, as long as the puzzles comply with the other WCA regulations.|
|9a)||The puzzles for which competitions are governed by the WCA are:
- all puzzles labelled as Rubik puzzles;
- all other puzzles that are played by twisting the sides, so called 'Twisty puzzles'.
|9b)||Official speed solving events and formats of WCA are:
|Event||Possible formats||Preferred format for finals|
|Rubik's Cube||'Best of x', 'Average of 5'||'Average of 5'|
|2x2x2 Cube||'Best of x', 'Average of 5'||'Average of 5'|
|4x4x4 Cube||'Best of x', 'Average of 5'||'Average of 5'|
|5x5x5 Cube||'Best of x', 'Average of 5'||'Average of 5'|
|6x6x6 Cube||'Best of x', 'Mean of 3'||'Mean of 3'|
|7x7x7 Cube||'Best of x', 'Mean of 3'||'Mean of 3'|
|Clock||'Best of x', 'Average of 5'||'Average of 5'|
|Magic||'Best of x', 'Average of 5'||'Average of 5'|
|Master Magic||'Best of x', 'Average of 5'||'Average of 5'|
|Megaminx||'Best of x', 'Average of 5'||'Average of 5'|
|Pyraminx||'Best of x', 'Average of 5'||'Average of 5'|
|Square-1||'Best of x', 'Average of 5'||'Average of 5'|
|9c)||Official special events and formats of WCA are limited to Rubik's Cube:|
|Event||Possible formats||Preferred format for finals|
|Rubik's Cube: One-handed||'Best of x', 'Average of 5'||'Average of 5'|
|Rubik's Cube: With Feet||'Best of x', 'Mean of 3'||'Best of x'|
|Rubik's Cube: Fewest moves||'Best of x'||'Best of x'|
|9d)||Official blindfolded events and formats of WCA are limited to Rubik's, 4x4x4 and 5x5x5 Cube:|
|Event||Possible formats||Preferred format for finals|
|Rubik's Cube: Blindfolded||'Best of x'||'Best of x'|
|4x4x4 Cube: Blindfolded||'Best of x'||'Best of x'|
|5x5x5 Cube: Blindfolded||'Best of x'||'Best of x'|
|Rubik's Cube: Multiple Blindfolded||'Best of x'||'Best of x'|
|9e)||New official events may be added each calendar year, and existing official events may be removed.
9e4) Other events may be held during a competition, but will be unofficial and therefore not part of the official results of the competition.
- 9e1) The decision to add or remove an event is made by the WCA Board, based on feedback by the community.
|9f)||The results of a round are measured as follows:
- 9f1) All timed results under 10 minutes, and corresponding averages/means are measured in hundredths of a second, with averages/means rounded to the nearest hundredth of a second (x.004 becomes x.00, x.005 becomes x.01).
- 9f2) All timed results over 10 minutes, and corresponding averages/means are measured in seconds, with averages/means rounded to the nearest second (x.4 becomes x, x.5 becomes x+1).
- 9f3) All counted results and averages/means are measured in natural numbers, with averages/means rounded to the nearest tenth (x.04 becomes x.0, x.05 becomes x.1).
- 9f4) DNF (Did Not Finish) is the result if the solve was disqualified or unfinished.
- 9f5) DNS (Did Not Start) is the result if a competitor skipped an attempt in a round.
- 9f6) In 'Best of x' rounds competitors get x (<= 3) attempts, with the best attempt counting. There may be a combined time limit, example: 30 minutes for 'Best of 1' or 'Best of 2'.
- 9f7) In 'Best of x' rounds a DNF or DNS is the worst result of a competitor, if all results are DNF and/or DNS the best result of the competitor is DNF.
- 9f8) In 'Average of 5' rounds competitors get 5 attempts. Of these 5 attempts, the best and worst attempt are removed, with the mean of the remaining 3 attempts counting.
- 9f9) In 'Average of 5' rounds one DNF or DNS is counted as the worst result, with more than one DNF and/or DNS the average is DNF.
- 9f10) In 'Mean of 3' rounds competitors get 3 attempts, with the mean of the 3 attempts counting.
- 9f11) In 'Mean of 3' rounds if the competitor has at least one DNF or DNS the mean is DNF.
- 9f12) In 'Best of x' rounds the order in the results is based on the best result per competitor, with lower meaning better.
- 9f13) In 'Mean of' and 'Average of' rounds the order in the results is based on the best average/mean per competitor, with lower meaning better.
- 9f14) If in 'Mean of' and 'Average of' rounds competitors have the same average/mean result, then the order in the results for these competitors is based on the best result per competitor, with lower meaning better.
- 9f15) Competitors with the same result in a round finish at the same position.
- 9f16) For the Rubik's Cube: Multiple Blindfolded event the order in the results is based on number of puzzles solved minus the number of puzzles not solved (higher is better). If the result is lower than 0, the solve is disqualified.
If competitors have the same result, then the order is based on total time (lower is better).
|9g)||A Combined round is two or three rounds combined during one time frame, where results of earlier rounds are taken into account for next rounds.|
- 9g1) A Combined round can be used to save time in the time schedule.
- 9g2) Whether a competitor proceeds to next phase of a Combined round, must be decided on position (best x competitors) or on result (all competitors with a best result under x).
|9h)||WCA must provide WCA world rankings for single and preferred average/mean formats where applicable.|
|9i)||Results of official WCA competitions must be listed on the WCA world rankings, if the full WCA regulations were applied.|
- 9i1) Regional records are recognised for best national/continental/world results.
- 9i3) If the regulations for an event are changed, then the old regional records stand until they are broken under the new regulations.
|9j)||Events must be held only once during a competition.|
|9k)||If an event is held, then all competitors may participate in that event.|
|9l)||All competitors must compete in each round during the same time frame.|
|9m)||Events must have at most four rounds.|
- 9m1) Events with 99 or fewer competitors must have at most three rounds.
- 9m2) Events with 15 or fewer competitors must have at most two rounds.
- 9m3) Events with 7 or fewer competitors must have at most one round.
|9o)||A Combined round and a Qualification round count as one round when counting the number of rounds per event.|
|9p)||In case of more than one round for an event the best ranked competitors of a round proceed to the next round.
- 9p1) For each round of an event, at least 25% of the competitors must not proceed to the next round.
- 9p2) Either the best x (see 9p1) competitors proceed to the next round, or all competitors who beat a specific result (announced before the round).
|9q)||Events and rounds should have at least 2 competitors.|
|9r)||A qualification round is a round of an event held before the first round of the event.|
The goal of a qualification round is to let unranked or low ranked competitors qualify for the first round of an event with many registered competitors.
- 9r1) When announcing the competition the organisation team must announce:
- how many competitors will compete in the first round of the event
- the maximum number of competitors in the qualification round of the event, and how many of the competitors will proceed to the first round
- which average/mean time or single solve time for the WCA ranking of the event is required to directly qualify for the first round (or other round) of the event
- the date taken for deciding the average/mean time or single solve time on the WCA ranking of each competitor
- 9r2) All competitors of an event who are not directly qualified for the first round of the event, must compete in the qualification round of the event.
- 9r3) There may be changes to increase the maximum number of competitors in qualification round or first round, or to add a qualification round for newly registered competitors. These changes should be made at least one month before the competition.
|9s)||If during a round a competitor does not solve within the time limit, then his solve may (courtesy of main judge) be stopped and disqualified by the judge. The main judge decides whether the competitor may continue the round, for example if the time was exceeded because of a puzzle defect.|
|12a)||Notation for Rubik's Cube and similar puzzles:|
Double Outer Slice Moves (outer slice plus adjacent inner slice):
- 12a1) Clockwise, 90 degrees: F (front face), B (back face), R (right face), L (left face), U (upper face), D (bottom face).
- 12a2) Counter clockwise, 90 degrees: F', B', R', L', U', D' (see 12a1).
- 12a3) Clockwise, 180 degrees: F2, B2, R2, L2, U2, D2 (see 12a1).
- 12a4) Counter clockwise, 180 degrees: F2', B2', R2', L2', U2', D2' (see 12a1).
Inner Slice Moves (adjacent slice of outer slice only):
- 12a5) Clockwise, 90 degrees: Fw, Bw, Rw, Lw, Uw, Dw. (see 12a1).
- 12a6) Counter clockwise, 90 degrees: Fw', Bw', Rw', Lw', Uw', Dw' (see 12a5).
- 12a7) Clockwise, 180 degrees: Fw2, Bw2, Rw2, Lw2, Uw2, Dw2 (see 12a5).
- 12a8) Counter clockwise, 180 degrees: Fw2', Bw2', Rw2', Lw2', Uw2', Dw2' (see 12a5).
Middle Slice Moves (middle slice of puzzles with odd number of slices, middle two slices of puzzles with even number of slices):
- 12a9) Clockwise, 90 degrees: f, b, r, l, u, d. (see 12a1).
- 12a10) Counter clockwise, 90 degrees: f', b', r', l', u', d' (see 12a9).
- 12a11) Clockwise, 180 degrees: f2, b2, r2, l2, u2, d2 (see 12a9).
- 12a12) Counter clockwise, 180 degrees: f2', b2', r2', l2', u2', d2' (see 12a9).
Half Turn Metric (HTM) is defined as:
- 12a13) Clockwise, 90 degrees: M (same direction as L), S (same direction as F), E (same direction as D). (see 12a1).
- 12a14) Counter clockwise, 90 degrees: M', S', E' (see 12a13).
- 12a15) Clockwise, 180 degrees: M2, S2, E2 (see 12a13).
- 12a16) Counter clockwise, 180 degrees: M2', S2', E2' (see 12a13).
- 12a17) Each move of the categories Face Moves and Double Outer Slice Moves is counted as 1 move.
- 12a18) Each move of the categories Inner Slice Moves and Middle Slice Moves is counted as 2 moves.
- 12a19) Each rotation is counted as 0 moves.
|12b)||Rotations for all cube shaped puzzles:|
- 12b1) Clockwise, 90 degrees: [f] or z, [b] or z', [r] or x, [l] or x', [u] or y, [d] or y'. (see 12a1).
- 12b2) Counter clockwise, 90 degrees: [f'] or z', [b'] or z, [r'] or x', [l'] or x, [u'] or y', [d'] or y (see 12b1).
- 12b3) Clockwise, 180 degrees: [f2] or z2, [b2] or z2, [r2] or x2, [l2] or x2, [u2] or y2, [d2] or y2 (see 12b1).
- 12b4) Counter clockwise, 180 degrees: [f2'] or z2', [b2'] or z2', [r2'] or x2', [l2'] or x2', [u2'] or y2', [d2'] or y2' (see 12b1).
|12c)||Notation for Square-1 :|
(hold smallest slice in middle layer on left side of front face)
- 12c1) (x,y) means: turn upper layer x times 30 degrees clockwise, turn bottom layer y times 30 degrees clockwise, turn right half of the puzzle 180 degrees.
|12d)||Notation for Megaminx (scrambling notation only):|
- 12d1a) Clockwise, 72 degrees: U (upper face).
- 12d1b) Counter clockwise, 72 degrees: U' (upper face).
- 12d2) Other moves are applied while keeping 3 pieces fixed at top left of the puzzle:
- 12d2a) Clockwise 72 degrees move of whole puzzle except for the slice of top left three pieces: R+ (vertical slices), D+ (horizontal slices).
- 12d2b) Counter clockwise 72 degrees move of whole puzzle except for the slice of top left three pieces: R- (vertical slices), D- (horizontal slices).
- 12d2c) Clockwise 144 degrees move of whole puzzle except for the slice of top left three pieces: R++ (vertical slices), D++ (horizontal slices).
- 12d2d) Counter clockwise 144 degrees move of whole puzzle except for the slice of top left three pieces: R-- (vertical slices), D-- (horizontal slices).
|12e)||Notation for Pyraminx:|
- 12e1) Moves are applied with the bottom face completely horizontal and the front face facing to the person who holds the Pyraminx.
- 12e2) Clockwise, 120 degrees: U (upper 2 layers), L (left 2 layers), R (right 2 layers), B (back 2 layers)
u (upper vertex), l (left vertex), r (right vertex), b (back vertex).
- 12e3) Counter clockwise, 120 degrees: U' (upper 2 layers), L' (left 2 layers), R' (right 2 layers), B' (back 2 layers)
u' (upper vertex), l' (left vertex), r' (right vertex), b' (back vertex).
|12f)||Additional notation for 6x6x6 Cube and 7x7x7 Cube:|
Double Slice Moves (two outer slices):
Triple Slice Moves (three outer slices):
- 12f1) Clockwise, 90 degrees: 2F, 2B, 2R, 2L, 2U, 2D. (see 12a1).
- 12f2) Counter clockwise, 90 degrees: 2F', 2B', 2R', 2L', 2U', 2D' (see 12a5).
- 12f3) Clockwise, 180 degrees: 2F2, 2B2, 2R2, 2L2, 2U2, 2D2 (see 12a5).
- 12f4) Counter clockwise, 180 degrees: 2F2', 2B2', 2R2', 2L2', 2U2', 2D2' (see 12a5).
- 12f5) Clockwise, 90 degrees: 3F, 3B, 3R, 3L, 3U, 3D. (see 12a1).
- 12f6) Counter clockwise, 90 degrees: 3F', 3B', 3R', 3L', 3U', 3D' (see 12a5).
- 12f7) Clockwise, 180 degrees: 3F2, 3B2, 3R2, 3L2, 3U2, 3D2 (see 12a5).
- 12f8) Counter clockwise, 180 degrees: 3F2', 3B2', 3R2', 3L2', 3U2', 3D2' (see 12a5).
|A1)||Attempts for events categorised under Speed Solving must abide to the following procedure.
- A1a) The time limit is 10 minutes, or less/higher if announced before the event.
- A1b) A stopwatch is used for time measurement, in addition to a Stackmat, if the time limit is higher than 10 minutes. If the puzzle solving time is under 10 minutes, the Stackmat time is the result, otherwise the stopwatch time is the result.
- A2a) The competitor hands over the puzzle to the scrambler and waits in the competitors area until he is called to compete.
- A2b) A scrambler scrambles the puzzle according to the regulations in Article 4.
- A2c) The competitor must not see the puzzle between the time when the puzzle is scrambled and the start of the inspection phase.
- A2d) When taking the puzzle from the scrambler, the judge does a quick general inspection of thorough scrambling of the puzzle. In case of doubt the judge contacts the scrambler for a detailed check.
- A2e) The judge places the puzzle onto the Stackmat and covers it completely with an object.
- A3a) Before starting the solve the competitor may inspect the puzzle.
- A3a1) The competitor has a maximum of 15 seconds for inspecting the puzzle and starting the solve.
- A3b) The judge resets the timer and stopwatch.
- A3b1) When the judge and the competitor mutually agree within one minute that the competitor is ready to begin the inspection, the judge says 'READY?'.
- A3b2) When the competitor confirms, the judge uncovers the puzzle after 1 second. At the same time the judge starts the stopwatch.
- A3c) During the inspection the competitor is allowed to pick up the puzzle.
- A3c1) The competitor must not apply moves. Penalty: disqualification of the solve.
- A3c2) If the pieces of the puzzle are not fully aligned, then the competitor may fix it, only to align the faces (for cubes the alignment must not exceed 45 degrees).
- A3c3) The competitor may reset the timer before he starts the solve.
- A3d) At the end of the inspection, the competitor must place the puzzle back onto the Stackmat, in the orientation and position he wishes.
- A3d1) The puzzle must rest on the mat, not on the timer part of the Stackmat.
- A3d2) When the inspection time reaches 8 seconds, the judge calls '8 seconds'.
- A3d3) When the inspection time reaches 12 seconds, the judge calls 'GO'.
|A4)||Starting the solve
- A4b) The competitor must place his hands flat on the elevated sensor area of the Stackmat, with his fingers touching the sensors and with palms down. Penalty: 2 seconds.
- A4b1) The competitor must not have any physical contact with the puzzle before he starts the solve. Penalty: 2 seconds.
- A4d) The competitor starts the solve by confirming that the timer light is green, then removing his hands from the timer, thus starting the timer.
- A4d1) The competitor must start the solve within 15 seconds after the start of the inspection. Penalty: 2 seconds.
- A4d2) The competitor must start the solve within 17 seconds after the start of the inspection. Penalty: disqualification of the solve.
- A4e) Time penalties for Starting the Solve are not cumulative. There is a maximum of 1 time penalty for Starting the Solve.
|A5)||During the solve
- A5a) While inspecting or solving the puzzle, the competitor must not have any communication with anyone other than the judge. Penalty: disqualification of the solve.
- A5b) While inspecting or solving the puzzle, the competitor must not have any assistance from anyone or any object (other than the surface). Penalty: disqualification of the solve.
|A6)||Ending the solve
- A6a) The competitor ends the solve by releasing the puzzle and then stopping the timer.
- A6b) It is the competitor's responsibility that the timer is stopped correctly.
- A6b1) If the timer stops earlier than the end of the solve, and the timer shows 0.01 - 0.05 then the solve is replaced by additional solve, unless the competitor intentionally forced the early timer stop (courtesy of the main judge).
- A6b2) If the timer stops earlier than the end of the solve, and the timer shows 0.06 or higher then the solve is disqualified, unless the competitor can show evidence that the timer was malfunctioning.
- A6c) The timer must be stopped using both hands, with both hands flat and palms down. Penalty: 2 seconds.
- A6d) The competitor must fully release the puzzle before stopping the timer. Penalty: 2 seconds.
- A6e) The competitor must not touch or move the puzzle until the judge has inspected the puzzle. Penalty: disqualification of the solve.
- A6f) The competitor must not reset the timer until the judge has written down the result on the competition sheet. Penalty: disqualification of the solve (courtesy of judge).
- A6g) The judge must inspect the puzzle without making moves or aligning faces and must determine whether the puzzle has been completely solved.
- A6h) In case of a dispute no moves or alignments must be applied to the puzzle until the dispute has been settled, involving the main judge if needed. Penalty: disqualification of the solve (courtesy of judge).
- A6i) Time penalties for Ending the Solve are not cumulative. There is a maximum of 1 time penalty for Ending the Solve.
- A7a) If the judge decides the solve was correct, the judge calls 'OK'.
- A7b) The judge writes down the result of the solve on a competition sheet, and signs the sheet with name or signature.
- A7b1) In case of a penalty, the judge writes down the result taken from the timer, and next to it the penalty. (Format example: 17.65 + 2 = 19.65).
- A7c) The competitor is responsible for checking the result on the sheet, immediately after the judge has written it down.
- A7d) If the judge gives a penalty, then judge calls 'PENALTY'. The competitor must sign the score sheet.
- A7e) If the result is DNF, then judge calls 'NO FINISH'. The competitor must sign the score sheet.
- A7f) At the end of a competitor's round the judge delivers the competition sheet to the score taker.