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Creators Title Comments & References Year Source Page AA Categories
Mitsunobu Matsuyama Paradox geometrical puzzle with a playing card that makes a full card face-down, but a piece is left over when assembled face-up
  • The Turnover Tactic
  • Business Card Variation
  • Reference File
Related toVariations 1979
The Chronicles (Issue 18)
Karl Fulves Powerdox rectangle puzzle, two pieces one by one removed but still a rectangle
Inspired by 1980 10
Terri Rogers A Jigsaw Puzzle card puzzle as a revelation, Four of Hearts instead of Five of Hearts
Inspired by 1981
Babel (Issue 2)
Mitsunobu Matsuyama, Martin Gardner Chronometer Cards cards of one suit are laid out and elimination process is used to arrive at two cards, those coincide with current time
Related to 1984
Epoptica (Issue Yearbook)
Jon Charles, Mitsunobu Matsuyama Inflation Bite topological puzzle with bill
Inspired by 1984
Epoptica (Issue Yearbook)
Jim Snapp From Jim Snapp
Inspired by 1988
Interlocutor (Issue 52)
Mitsunobu Matsuyama Fortune cards with "He Loves Me", "He Loves Me Not", petal principle
Related toVariations 1993
Rigmarole (Issue 4)
Martin Gardner Fortune information on the petal principle force
Related to 1993
Verbatim (Issue 4)
Mitsunobu Matsuyama Magic Teaching card selected, down under deal with a packet, last card used to count to selection, every other card Ace through King
Verbatim (Issue 10)
Mitsunobu Matsuyama The Knot Scam puzzle
Arcane (Issue 14)
Mitsunobu Matsuyama, Martin Gardner Separating Knots two ropes together are knotted, knots separated, with Single Rope Variation, With Silks
Related to 1995
Arcane (Issue 14)
Mitsunobu Matsuyama Catch The Terrorist instruction game with map, final destination predicted
Inspired by
  • "The 3-by-3 Matrix" (Martin Gardner, Scientific America, Aug. 1960)
Nov. 1996
Magic (Vol. 6 No. 3)
George Sands, Mitsunobu Matsuyama "Lucky 13" Force Using a fair dice to force bottom card of seven card packet, by eliminating cards at rolled number repeatedly, independently discovered by Mitsunobu Matsuyama
1997 144
Karl Fulves Stebbins Clock clock layout, one card turned over and put in center, counting procedure with the value and last card on count always turned over, remaining card forced
Inspired byRelated to 1998 176
Mitsunobu Matsuyama, Karl Fulves Petal Force to force a card from Aces and Twos
2001 152
Karl Fulves MM Force more on the working of Mitsunobu Matsuyama's petal force
Related to 2001 159
Robin Robertson, Peter Duffie Matsuyama's Mates color, suit and picture/spot are used for down under deal, finding selection and mate
Inspired by 2002 88
Mitsunobu Matsuyama Complete Match two piles of five ESP cards and different coins, spectator takes some coins and amount is counted, Ramasee Principle
Also published here
  • "The Magic #42" 1999
2006 75
Mitsunobu Matsuyama Cheapest Match two piles of cards are counted depending on coins being heads or tails, variation of Maven idea
2006 77
Martin Gardner, Joseph K. Schmidt Riddle Rope knot appears or not
  • The Chefalo Phase
  • Schmidt's Fake Chefalo
Related to 2008
Prolix (Issue 4)
John Bannon No card on table is divined with other piles via down-under-deal using Mitsunobu Matsuyama's Petal Principle
2010 187
Rajneesh Madhok Down Under the Bar drink predicted via down under deal using Mitsunobu Matsuyama's Petal Principle
2010 188
Mitsunobu Matsuyama The Petal Force
2010 194
Masao Atsukawa Warp 9 geometrical puzzle with a playing card that makes a full card face-down, but a piece is left over when assembled face-up
Related to 2013 19
Takanobu Ishida Date/Time Cards clock formed and pen and cap used as handles, cards match value and suit and actual time
Inspired by
  • Mitsunobu Matsuyama's "What Time Is It Now?" 1974.
2013 91
Lewis Jones MatsuNOma Principle Procedure which allows you to perform the petal force by Mitsunobu Matsuyama without a down-under deal.
Related to 2015 81