how, on delivering a ring to a number of persons, to find which person has got it, which hand it is on, which finger, and which joint.\npeople seated in a row and numbered, calculation is made and result gives answers\n unknown
1784
breslaw's last legacy
Unknown

How, on delivering a Ring to a Number of Persons, to find which Person has got it, which Hand it is on, which Finger, and which Joint.

people seated in a row and numbered, calculation is made and result gives answers

the elusive digits\nfour cards with numbers from one to four in a glass frame, arrange in wanted order, second set of cards in card stand\noswald rae
1926
between ourselves Oswald Rae

The Elusive Digits

four cards with numbers from one to four in a glass frame, arrange in wanted order, second set of cards in card stand

double date\ndates of two borrowed coins divined, dates written into grid on a paper by spectator\ntom sellers\nanything squared\nkarl fulves
1931
magical pleasantries Tom Sellers

Double Date

dates of two borrowed coins divined, dates written into grid on a paper by spectator

the elevens stunt\nmathematical stunt, place three cards on table, numbers can always be divided by eleven\n unknown
1949
tricks and stunts with playing cards
Unknown

The Elevens Stunt

Mathematical stunt, place three cards on table, numbers can always be divided by eleven

telling a chosen card\ndivine value of playing card via mathematical method (multiply by three, add six, divide by three)\n unknown
1949
tricks and stunts with playing cards
Unknown

Telling a Chosen Card

Divine value of playing card via mathematical method (multiply by three, add six, divide by three)

think of a number\nbusiness cards with number written on them, chosen number is spelled and card with same number is found\nronald b. edwards
1954
the new phoenix 301-348 Ronald B. Edwards

Think of a Number

business cards with number written on them, chosen number is spelled and card with same number is found

the cyclic number\na packet containing six cards forming the number 142857, when multiplied by any number from 2 to 6, gives a result which the cards themselves reveal\nlloyd e. jones
1956
mathematics, magic and mystery Lloyd E. Jones

The Cyclic Number

A packet containing six cards forming the number 142857, when multiplied by any number from 2 to 6, gives a result which the cards themselves reveal

heath's "tappit"\ntapping the hours type of trick, but with colored tiles and numbers printed on them\nroyal vale heath\ntapping the hours\n unknown\neddie joseph
1956
mathematics, magic and mystery Royal Vale Heath

Heath's "Tappit"

Tapping the Hours type of trick, but with colored tiles and numbers printed on them

blyth's domino box\ndominoes in a box shifted, the spots on the dominoes will predict how many have been shifted\nwill blyth\nblocks of india\n unknown
1956
mathematics, magic and mystery Will Blyth

Blyth's Domino Box

Dominoes in a box shifted, the spots on the dominoes will predict how many have been shifted

paradox papers\npaper with numbers in a 4x4 grid is folded into small square, edges cut off, then all even numbers are one way and the odds another, application with cards, steve shimm suggestion, tapestry handling, see also p. 521 for gene nielson handling, h. e. dudeney\nmartin gardner\nhenry dudeny puzzle from "modern puzzles" (1926)\nnews test\nedmund rowland\nparadox papers\nmartin gardner\nwraparound\nkarl fulves\nfoldover notes\nkarl fulves\npaper folding note\nkarl fulves\nparadox redux\nphilip t. goldstein\nfolding numbers\njack avis\nthe core\npit hartling\ndisparity\nramón riobóo
1971
the pallbearers review vol. 5-8 Martin Gardner

Paradox Papers

paper with numbers in a 4x4 grid is folded into small square, edges cut off, then all even numbers are one way and the odds another, application with cards, Steve Shimm suggestion, tapestry handling, see also p. 521 for Gene Nielson handling, H. E. Dudeney

the missing digit\nspectator form two numbers from all ten digits, adds them and removes one digit from answer which the performer divines, from a dover collection edited by martin gardner\nsam lloyd
1972
the pallbearers review vol. 5-8 Sam Lloyd

The Missing Digit

spectator form two numbers from all ten digits, adds them and removes one digit from answer which the performer divines, from a Dover collection edited by Martin Gardner

numbers game\nseveral numbers are written next to letters of the alphabet, one letter is selected with abc cards and performer divines number\njerry mentzer
1972
the compleat magick - volume 1 Jerry Mentzer

Numbers Game

several numbers are written next to letters of the alphabet, one letter is selected with ABC cards and performer divines number

in the mirror\nspectator writes number on mirror, performer on another mirror, numbers transpose in mirror writing, variation with words, see also p. 786 for comment by reinhard müller\nrobert e. neale\nkarl fulves
1974
the pallbearers review vol. 9-10 Robert E. Neale, Karl Fulves

In the Mirror

spectator writes number on mirror, performer on another mirror, numbers transpose in mirror writing, variation with words, see also p. 786 for comment by Reinhard Müller

lightning strikes thrice\nthree numbers and totals arrived at with blank cards, they are all identical, see p. 1053 for note by johnnie murray\nstewart judah\nlightning strikes thrice\nstewart judah\nblue lightning\nkarl fulves\ncubic code\nkarl fulves
1974
the pallbearers review vol. 9-10 Stewart Judah

Lightning Strikes Thrice

three numbers and totals arrived at with blank cards, they are all identical, see p. 1053 for note by Johnnie Murray

smart as hell\nnumbers written on slip, some chosen, person with higher total wins, amazingly the totals are equal\narthur hill
1975
the pallbearers review vol. 9-10 Arthur Hill

Smart As Hell

numbers written on slip, some chosen, person with higher total wins, amazingly the totals are equal

the new math miracle\nsix cards with numbers on both sides in envelopes, shuffled and turned over by spectator, total is divined\nlarry becker\nhummer's poker chip baffle\nbob hummer
1978
world of super mentalism Larry Becker

The New Math Miracle

six cards with numbers on both sides in envelopes, shuffled and turned over by spectator, total is divined

sh-h-!\n25 number card with numbers from one to five, spectator divines if numbers match or not\ndr. dan j. alessini
1979
the compleat magick — volume iii Dr. Dan J. Alessini

SH-H-!

25 number card with numbers from one to five, spectator divines if numbers match or not

computer dating\nno. 2, two persons write a digit, calculation done with one digit leads to two-digit number composed of both original numbers\n unknown
1983
self-working number magic
Unknown

Computer Dating

No. 2, two persons write a digit, calculation done with one digit leads to two-digit number composed of both original numbers

resistible rithmetic\nno. 3, spectator writes number with writing surface held away and gets it wrong (18 instead of 81), mirror writing\n unknown
1983
self-working number magic
Unknown

Resistible Rithmetic

No. 3, spectator writes number with writing surface held away and gets it wrong (18 instead of 81), mirror writing

step right up\nno. 4, sixteen slips, half with "i owe you $1", half with "you owe me $1", spectator writes down 1, 2, 4, 8 in any order with plus or minus between and counts to a slip and loses\n unknown
1983
self-working number magic
Unknown

Step Right Up

No. 4, sixteen slips, half with "i owe you $1", half with "you owe me $1", spectator writes down 1, 2, 4, 8 in any order with plus or minus between and counts to a slip and loses

lightning strikes thrice\nno. 10, three numbers and totals arrived at with blank cards, they are all identical\nstewart judah\nlightning strikes thrice\nstewart judah
1983
self-working number magic Stewart Judah

Lightning Strikes Thrice

No. 10, three numbers and totals arrived at with blank cards, they are all identical

mah jongg cubes\ncolored squares with numbers on other side, number selected and spelled with mixed squares\n unknown
1985
the fred braue notebooks
Unknown

Mah Jongg Cubes

colored squares with numbers on other side, number selected and spelled with mixed squares

paradox papers\nno. 9, paper with numbers in a 4x4 grid is folded into small square, edges cut off, then all even numbers are one way and the odds another, application with card values on paper or card layout (chosen card turned over is only odd-colored at the end)\nmartin gardner\nparadox papers\nmartin gardner
1985
self-working paper magic Martin Gardner

Paradox Papers

No. 9, paper with numbers in a 4x4 grid is folded into small square, edges cut off, then all even numbers are one way and the odds another, application with card values on paper or card layout (chosen card turned over is only odd-colored at the end)

mind scan\nno. 57, two cardboards, one has triangle and circle cut out, other has some numbers, spectator puts first one on top of second one, adds numbers that are visible and announces total, performer knows numbers and which is in circle\nkarl fulves\nhummer effects\nkarl fulves
1985
self-working paper magic Karl Fulves

Mind Scan

No. 57, two cardboards, one has triangle and circle cut out, other has some numbers, spectator puts first one on top of second one, adds numbers that are visible and announces total, performer knows numbers and which is in circle

unlisted numbers\nfour discs with four numbers on each, spectator choses one disc, all put in pocket, performer finds right one without looking\nkarl fulves
1993
easy-to-do magic tricks for children Karl Fulves

Unlisted Numbers

four discs with four numbers on each, spectator choses one disc, all put in pocket, performer finds right one without looking

jumble\nnumber up to twelve chosen, letters that spell the number taken from letter deck, second number as well, performer looks at all letters shuffled together and announced both numbers, with two more uses of sallows square
- crosswords
- si minus (card counting analog)\nkarl fulves
1994
verbatim Karl Fulves

Jumble

number up to twelve chosen, letters that spell the number taken from letter deck, second number as well, performer looks at all letters shuffled together and announced both numbers, with two more uses of Sallows Square

comment on contest influence\nfive cards, one one and four zeros, put in any order and the resulting number is paid out\nkarl fulves\n"contest influence" (robert ecklund, ed mellon's "mental wise")\ncontest influence solutions\nmax abrams
1995
the fine print Karl Fulves

Comment on Contest Influence

five cards, one One and four Zeros, put in any order and the resulting number is paid out

Inspired by

"Contest Influence" (Robert Ecklund, Ed Mellon's "Mental Wise")

jumbled numbers\nno. 33, seven numbers on slips of paper are threaded onto safety pin in random order, performer takes it behind his back and tears off the numbers in order of spectator's phone number\nkarl fulves
1995
easy magic Karl Fulves

Jumbled Numbers

No. 33, seven numbers on slips of paper are threaded onto safety pin in random order, performer takes it behind his back and tears off the numbers in order of spectator's phone number

contest influence solutions\nfive cards, one one and four zeros, put in any order and the resulting number is paid out, two methods, velleda\nmax abrams\nbefore your eyes\nnorman ashworth\ncomment on contest influence\nkarl fulves
1996
the fine print Max Abrams

Contest Influence Solutions

five cards, one One and four Zeros, put in any order and the resulting number is paid out, two methods, velleda

a new year curiosity\n"dot com - tricks and stunts with numbers"
apparently random calculation with a 3x3 matrix, 1997 arrived at\nmartin gardner\ndr. irving joshua matrix\nrec newsletter (michael ecker)\na very good year\nsam schwartz
1997
the fine print Martin Gardner, Dr. Irving Joshua Matrix

A New Year Curiosity

"Dot Com - Tricks and stunts with numbers"
apparently random calculation with a 3x3 matrix, 1997 arrived at

a very good year\n"dot com - tricks and stunts with numbers"
apparently random calculation with a 3x3 matrix, 1998 arrived at\nsam schwartz\na new year curiosity\nmartin gardner\ndr. irving joshua matrix
1997
the fine print Sam Schwartz

A Very Good Year

"Dot Com - Tricks and stunts with numbers"
apparently random calculation with a 3x3 matrix, 1998 arrived at

totalizer\n"an impromptu trick with four dice"
four dice put on table with one-two-five-six sides up, spectator follows some instructions or not while back is turned and covers dice, performer arranges dice so that two left dice have same total as right dice\nkarl fulves
2001
latter day secrets Karl Fulves

Totalizer

"An impromptu trick with four dice"
four dice put on table with One-Two-Five-Six sides up, spectator follows some instructions or not while back is turned and covers dice, performer arranges dice so that two left dice have same total as right dice

alpha numeric\nfurther notes on combo system and number systems
- the octal system
- the hexadecimal system
- binary to hex\nkarl fulves
2005
combo ii Karl Fulves

easy as a<sup><sup>b</sup>⁄<sub>c</sub><sup>\ncalculator option for simplifying task to spectators in division tricks\nmel bennett\nzangbar zackleback problem (genii, june 1952, oct. 1958, ibidem #12-14)\n"math prediction" (david g. luenberger, linking ring, march 1974, p. 77)\nremains to be seen\nsam schwartz\nkarl fulves
2006
prolix Mel Bennett

Easy As A^{b⁄c
}

calculator option for simplifying task to spectators in division tricks

Inspired by

Zangbar Zackleback Problem (Genii, June 1952, Oct. 1958, Ibidem #12-14)

Related to

"Math Prediction" (David G. Luenberger, Linking Ring, March 1974, p. 77)

breaking bread\nsmall pieces of bread placed in groups that form a square, even though some are eaten, the amount of bread stays the same, mathematical principle (edge counting)\nrobert e. neale\nto feed many\nmichael weber
2008
this is not a book Robert E. Neale

Breaking Bread

Small pieces of bread placed in groups that form a square, even though some are eaten, the amount of bread stays the same, mathematical principle (edge counting)

i bless bile\ncards with numbers on them used to spell various words when turned upside down, then flipped over to reveal a skull picture\nrobert e. neale\nhot spell\ndan harlan
2008
this is not a book Robert E. Neale

I Bless Bile

Cards with numbers on them used to spell various words when turned upside down, then flipped over to reveal a skull picture

nothing test\nnumbers chosen and put in calculator, divided by numbers chosen from deck of cards, remainder given out in money, it is zero three times\nmel bennett
2010
prolix Mel Bennett

Nothing Test

numbers chosen and put in calculator, divided by numbers chosen from deck of cards, remainder given out in money, it is zero three times

perpetual\n"in order"
four cardboard pieces with numbers on both sides are in envelopes, with his back turned the performer orders them in numerical order\nkarl fulves\nperpetual notions\nkarl fulves
2011
prolix Karl Fulves

Perpetual

"In Order"
four cardboard pieces with numbers on both sides are in envelopes, with his back turned the performer orders them in numerical order

perpetual notions\n"notes on 'perpetual'"
four cardboard pieces with numbers on both sides are in envelopes, with his back turned the performer orders them in numerical order
- tight circle
- in color
- picking numbers
- perceptual
- using windows
- perpetual numbers\nkarl fulves\nperpetual\nkarl fulves
2011
xtra credit Karl Fulves

Perpetual Notions

"Notes on 'Perpetual'"
four cardboard pieces with numbers on both sides are in envelopes, with his back turned the performer orders them in numerical order

numballoon prediction\nuse numbered balloons to predict serial number on dollar bill\njon allen\nshimon nahamani
2017
the interrobang lecture Jon Allen, Shimon Nahamani

Numballoon Prediction

Use numbered balloons to predict serial number on dollar bill