The Stone is an enigmatic set of puzzles. The puzzles have been gradually released over a period of some four years and out of a possible 216 in an index diagram, nearly all (210) are now available. The remaining ones are all in the centre of the diagram which is a hexagon made up of triangles, with those towards the middle supposedly being more difficult. There is apparently an overall 'enigma' to solve to which all the puzzles relate. When you start out, only a few puzzles (of those available) are visible to you.

The puzzles are more or less of a similar format with a jumble of images and words which relate to an event or person. If you type in the correct answer, the dot on the index diagram corresponding to that puzzle is dimmed and new puzzles may become visible to you.

The theme of the puzzles is in general mysteries, time, inventors, that sort of thing.

Here is a chart of the puzzles so far released:

The Immediate The Unknown The Movement The Stone Unturned The Alternate
01The Middle Place 1WCelebrity Status HHFlash Point 1F Exposure       A Resume
02The Daymaker 1XGravity HIBeekeeper 1G Subversive       B Segregation
03Little Big Man (CA)1YEnlightenment HJAdam and Eve 1H Inferior       C What Goes Up
04Of Mice and Men (32)1ZThe Matador HKBase Relief 1I Fate Manifest       D Screwball
05Perspective 2XThe Watchers HLConduct 2F Vortex       N Big Plans
06Data Transfer 2YEye of the Storm HMSublyrical 2G Square Route       O 64
07Dominion 3WEntertainment Value HNMy Kingdom For a Horse 2H Egomaniac       P Shut Up!
08The Gift 3XTop Secret HOHeading Where 2I The Apparitions       Q Point of no Return
09Skywatcher 3YThe Movement HPPopeye 3F Eclecticism       E The Standard
0AContinuity HQOn Slow Company 3G Postmodern       M Past Life
0BSpells HRThe 5th Sin 3I Lost Concentration       V Time's Up
0CA Thread HSThe Room 4F Forked Tongue       W Missing Person
0DThe Undiscovered HTa cartoon 4G Unearthly Abduction       X Bloodhound
0EHomestone 2001 IHPainless 4H Bad Reasoning       R The Crow
10Mistaken Identity IINga Manene 4I Oblivion       F The Twice-Drowned Man
11Reunion IJNumber 3 1J The Change       L On the Mark
12Lines of Inquiry IKThe Roach 1K Daymaker       U Across the Street
13Collectors Items ILEurope's Child 1L Untranslatable       T A Thousand Words
14The Rider IMThe Fall 1M Night       S Cold As Earth
15Contact INNo Worship 2J Of Mice and Ducks       G The Twist
16Senior Citizen IOElegance 2K Missing       K All Around the World
17 Togetherness IPBilingual 2L Twelve Little Words       J Bent
18La Buena Vida IQInsomnia 2M Chuck       I There's No Place Like Home
19The Bones IRObtuse 3J The Waiting       H Cheers
1ARami IS3-2 3KThe Tools   
1BTransition ITThe First 3LFor Love Of The Game   
1CAsylum seekers JHIn the Name of the King 3MCheese   
1DExtractions JIThe Creator 4JThe Connection   
1EHot Pot JJStraight Guy 4KSoothsayer   
20Riddles JKThe Silence 4LElegy   
21 Prediscovered JLGet the Picture? 4MProspectus   
22Family Ties JMThe Loves 1NSleepwalker
  
23Return of the King JNEgomaniac 1OFresh Air   
24Weeds JOMountaineer 1PDoubleExposure   
25Suffer JPSquare Route 1QX Marks the Spot   
27Sightings JQThe Struggle 2NSimple
  
28Denial JRThe Bird 2OStrong Influence   
29Moths JSLet's Get Lost 2PSold Out   
2AA Deadly Game 2QThe Next Generation   
2BUnforgotten 3NSunshine   
2CThe King's Ransom 3OPotty Mouth   
2DCompany 3PAgainst All Odds   
2EExhausted 3QColossus   
30Hindsight 4NThe Mole   
31The Spider 4OMater's Pater   
32The Matador 4PUnfinished Sympathy   
33The Waiting 4QDestination   
34Time and Thyme Again HM1RSublyrical
  
35Shadows HJ1SAdam and Eve
  
36Spotlights HK1TBase Relief
  
37The Deep HL1UConduct
  
38Cycles HH2RFlash Point
  
39No Class HN2SMy Kingdom For A Horse
  
3AFearless HO2THeading Where
  
3BApril 3, 2001 HP2UPopeye
  
3CThe Curse HI3RBeekeeper
  
3D Reciprocation HQ3SOn Slow Company
  
3ETempus Fugit HR3TThe 5th Sin
  
40Bondage HS3UThe Room
  
41The Gathering HT4Ra cartoon
  
42Gamble IH4SPainless
  
43Singularity II4TNga Manene
  
44Brotherhood IJ4UNumber 3
  
45Xeno 1WStab in the Dark   
46Monumental 1XGone   
47Midnight Suns 1YA Boy Named Sue   
48Interstate 1ZThe Nests-   
49Pitter Patter 2WA Fare To Remember   
4Abeg in eve 2XYour Future On A Gameboard   
4BReturn to Sender 2YAll The King's Men   
4DTo Focus 2ZContaminated   
4EMean Street 3WBatman?   
50Vantage Point 3XSecond Sight   
51Scavengers 3YUnification Day   
52Stones 3ZLost Key   
53The Man 4WSnapshot   
54The Forest 4XIn The Bleak Midwinter   
55Message 4YThe Chalker   
56The Call 4Z Big Deal    
57The Tower 5FDestiny's Manifest   
58The Clouds 5GUnspoken   
59The Key 6FSooner or Later   
5ADouble Jeopardy 7FPriceless   
5BImpact 7IStoned Mind   
5CCharmed 8GPuzzle Making 101   
5DHidden 8IFinagle's Stone Law   
5EVernacular 5JMonstrosity
  
60 Commandments 5KThe Inheritance
  
61Confession 5LThe Origin of Man
  
62Revelation 5MThe Ancestors
  
63Fallible 6JThe Scribe
  
64Dead Again 6KStar Death 9619
  
65Resident Evil 6LNumber Please
  
66The Choice 6MMy New Net Pal   
67Needful Things 7JWelcome to the Machine   
68Selfless 7KCustoms   
69Payback 7LThe Dance   
6AThe Phoenix 7MStrange Bedfellows
  
6BStop and Go 8JWhat a Dump   
6CHonesty 8KInner Space
  
6DCrossroads 8LUp The Down Staircase   
6EIll Gotten Gains 8MLost And Found   
70Concept 2 CONditional 5NAnonymous   
71Space 5OAll That Glitters   
72Irrelevant 5PA World Full Of Wonder   
74Letterhead 5QDitto   
75No Going Back 6NInnovation   
76Subtext III Pop 5 6OThe Premier   
77Subtext III Pop 4 6PTheExchange   
78Subtext 6QThe Kiss   
79Bunches 7NTunnel Vision   
7ASubtext III Pop 3 7OUtopia   
7BQuestions 7PAnother Time, Another Place   
7CSubtext III Pop 2 7QThe Old Wizard   
7DTow the Line    8N Bad Vibrations
7EThe Gates    8O Deep Freeze
80Savoir rare     8P Journey
81Invasion     8Q The Age of Man
82Yes    IK5R The 'Roach
83Fast & Bulbous    IL5S Europe's Child
84Subtext III Pop 9    IM5T The Fall
85Subtext III Pop 8    5U By Degrees
86Subtext III Pop 7    IN6R No Worship
87Subtext II    IO6S Elegance
88Subtext III Pop 6    JH6T In The Name Of The King
89Message in a Bottle    6U To Drink
8ADreadful    JI7R The Creator
8B Retrogression    7S Visual Subtext
8C Resurrection    IP7T Bilingual
8DVoice box    IQ7U Insomnia
8EXstatic    IR8R Obtuse
90Speaker's Corner    IS8S 3-2
91Subtext V    8T Disillusion
92Sweet and Sloe    IU8U TheFirst
93Treasure Hunt     9F Visual Subtext
94Movements     9G Unanswered Prayers
95Even     9H Father
96Comfort     9I Visual Subtext II
97Inside     10F Olympic Games
98Rise     10G Rise and Fall
9AGiants     10H Pure Haste
9BSubtext III Pop 1     10I Que Sera, Sera
9CThe Bug     11G Between Heartbeats
9DFast Forward     11H No Admittance
9EThe Case     11I The Third Wave
A0Trivial     12F 10000
A1Strained Class     12G Faint-Hearted
A2Fossils     12H Mystery Man
A3Magic     12I A Kiss Before Dying
A4In Synch     9J Off Limits
A5Liberaté     9K Torch Bearer
A6Power     9L Little Monkey
A7Reptiles     9M A Nautical Tail
A8Passage     10J Delayed
A9Signals     10K 75x30
AASubtext IV, Article 1     10L Galaxies
ABSubtext IV, Article 2     10M Guided Missiles
ACSubtext IV, Article 3     11J Revelation
ADSubtext IV, Article 4     11K Antihero
AEMoods     11L Interceptor
B0Subtext IV, Article 5     11M Courage
B1Subtext IV, Article 6     12J Braveheart
B2Subtext IV, Article 7     12K Magic Carpet
B3Subtext IV, Article 8     12L Wishful Thinking
B4Subtext IV, Article 9     12M 100 Hugs
B5Subtext IV, Article 10     9N Poor Wandering Ones
B6Components     9O More Than Meets The Eye
B7Mind Over Matter     9P Visual Sublyrical
B8Senseless     9Q What's in a Name
B9Icon     10N Till Death Do Us Part
BAThe Visionary     10O Black or White
BBThematic     10P Time Travel
BCHaunting     10Q Inside Out
BDSubtext final     11N Ranalevo
BESeasoning     11O To the Best of My Knowledge
C1Genesis     11P Odo's Legacy
C2Pocket Change     11Q Sink of Swim
C3The Hunt     12N Flesh and Blood
C4The Deliverer     12O O Terceiro
C5Manifesto     12P In the Carib: Lost
C6Racketeer     12Q Terran Incognito
C7The Pig     9R Outside In
C8Stored Mind     9S Breathless
C9Finnegan's Wake     9T Final Farewell
CA Enlightenment     9U By George!
CBDimensions     10R The Architect
CCEvermore     10S Impurity
CDOptions     10T Lost Head
CEReanimation     11S Lost Stone
D0The Big Chill     11T In A Trice
D1The Venture     11U Light In Darkness
D2Haystacks     12R The Scone
D3No Limits     12S And The Band Played On
D4Mesmerized     12T Horse Power?
D5Sinister     12U Kardiac Arrest
D6This Mortal Coil     9W Light Bright
D7 Tools of the Trade     9X Fuil
D8 An Illustration     9Y The Stone
D9Manifest Destiny     9Z Second Thoughts
DA Ad Infinitum     10W Fever
DB Introspection     10X Fever 2
DC From a Distance     10Y Fever 3
DD Fish Out of Water     10Z Fever 4
DE National Forecast     11Y Loup Garou
E0 The Demon     11Z The Last March
E1 The Man in the Mirror     12W Food For Thought
E2 Inflammatory     12X A Family Affair
E3 Wages     12Y Demotic
E4 Shapes     12Z Initially
E5 Dawn     13F The Sea Is The Sky
    13G Over At Home
    13H Vive La Revolution
    13I Politically Incorrect
    14F Principal Witness
    14G Beneficence
    14H LA Story
    14I The Pirates
    15F Breaking Up Is Hard To Do
    15G The Clue
    15H Crypt Analysis
    15I Precious
    16F Men of Rank
    16G Oh! Brother
    16H Heads Up!
    16I The Test
    13J Open Door Policy
    13K Skull Vision
    13L Force 12
    13M Going Out In Style
    14J Greetings
    14K Photo Finish
    14L Golden Slippers
    14M Transformation
    15J Ethics
    15K Stumped
    15L Happy Birthday Sweet Sixteen
    15M Picky, Picky
    16J Director's Cut
    16K The Search, Or Where to eat Porridge in Space
    16L Location
    16M California
    13N One Lucky Guy
    13O Beginnings
    13P Cut That Out
    13Q The Entertainer
    14N Opposing Forces
    14O Puddle
    14P A Degree of Leisure
    14Q Drained
    15N A Little Life in the Desert
    15O Timepiece
    15P Old Writing!
    15Q False Pretences
    16N Timeless
    16O Heads and Tails
    16P Happy Birthday
    16Q The Operation
    13R All Is Well
    13S Yes Boss
    13T Foreknowledge
    13U White Goods
    14R Foresight
    14S Welcome To The Jungle
    14T Hosers, Eh?
             14U Still Active
             15R Year of the Stoat
             15S Mountaineer
             15T Stay Active
             15U Homes