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Hofzinser Ace Problem
Hofzinser Ace Problem, which appears to be mistakenly credited to Hofzinser by Dai Vernon, is the Card Problem which poses the following effect:
Four aces are on the table. You ask a spectator to pick a card from the deck and remember it. You take back his card and loose it in the deck. You say that the four aces will help you find his card. You show the aces one by one and after snapping your fingers show that one of the ace has turned face down. Say that as it is for example the ace of hearts that turned face down, his card must be a heart. You once again snap your fingers over the deck and show that one card has also turned face down in the deck. You ask for the identity of the chosen card. When the spectator has answered, you show him that the face down card in the deck is in fact the ace of heart and his chosen card is the face down card between the aces.
Apparently the trick was put together by Jack Avis in 1958, and when Vernon saw it he said it was Hofzinser's lost ace routine, which he'd "read about in a letter". According to Vis à Vis, Avis was inspired by Edward Victor's Deo Ace trick, and "there seems to be little evidence to back up Vernon's claim that he ostensibly read this plot of Hofzinser's in a letter. No one else has been located who claims to have seen such a letter."
Proposed Solutions
- 1965[33] Marlo Edward Choice Transposition
- 1967[28] Jennings Larry Tell-Tale Aces
- 1969[22] Fulves Karl Two Unsolved Problems
- 1970[6] Chesbro Verne & West Larry Flipper
- 1970[46] Swinford Paul Three Different Ways
- 1970[49] Warlock/Haxton/Ryland/Kort Platform Hofzinser
- 1971[2] Avis Jack The "Lost Ace" Trick
- 1971[21] Fulves Karl The Red Backed Hofzinser
- 1971[49] Warlock/Haxton/Ryland/Kort Platform Hofzinser
- 1972[26] Hartman JK Hof Zingers
- 1972[49] Warlock/Haxton/Ryland/Kort Platform Hofzinser
- 1973[9] Cyprian Fr. Hofzinser-70
- 1976[4] Britland David Tell Tale Aces
- 1977[7] Christensen JL Pyramide Aces
- 1977[18] Fare Jean Criss Cross Triumph in
- 1977[20] Fulves KarlIn Re Hofzinser
- 1977[38] Racherbaumer Jon Decking Hofzinser
- 1978[5] Busby Jeff Cased Prediction
- 1978[10] Cyprian Fr. Fr.Cyprian on the Hofzinser Card Problem
- 1978[37] Nelson B Jennings Improved
- 1978[38] Racherbaumer Jon About the so-called Hofzinser Problem
- 1978[38] Racherbaumer Jon Decking Hofzinser Delux
- 1978[38] Racherbaumer Jon Hofzinser Triumphs
- 1978[45] Solomon David Triumphant Aces
- 1979[48] Walton Roy Grown Up Hofzinser
- 1980[12] Cyprian Fr. Hofzinser's Departure
- 1981[32] Lees Walt Hofzinser/Jennings
- 1982[14] Duffie Peter Hofzinser In My Pocket
- 1982[28] Jennings Larry Hofzinser Ace Problem
- 1982[31] Kaufman Richard The Hofzinser Ace Tunnel
- 1982[43] Sanvert Jean-Jacques Another Hofzinser Twist
- 1983[44] Simon Frank Hot Zinger
- 1984[35] McCarthy D No Shuffle Hofzinser Aces
- 1984[35] McCarthy D One Shuffle Hofzinser Aces
- 1984[47] Tropeano D Hofzinser Triumphs !
- 1986[28] Jennings Larry A Problem with Hofzinser
- 1987[13] Duffie Peter Hofzinser's Alternative
- 1987[23] Giobbi Roberto Hofzinser's Aces
- 1988[24] Goldstein Phil Twisted Hofzinser
- 1989[3] Bengel R One-Shot Hofzinser
- 1989[8] Cyprian Fr. New Hofzinser Four Aces
- 1989[11] Cyprian Fr. Hats Off To Hofzinser
- 1989[15] Edwards D Half-Shot Hofzinser
- 1989[19] Fulves Karl Dollar Hofzinser
- 1990[27] Higham Justin Hofzinser Triumphs In One Shuffle
- 1990[34] Marlo Edward Marlo's 3rd Solution to Hofzinser's Card Problem
- 1990[38] Racherbaumer Jon A Case For Hofzinser
- 1991[1] Aldrich St Aldrich Hofzinser Ace Trick
- 1991[16] Elmsley Alex Bare-Aced Hofzinser
- 1991[17] Elmsley Alex Hoftwister in Minch
- 1991[25] Hartman JK Hof Zingers
- 1991[35] McCarthy D Another Hofzinser Aces
- 1992[50] Yedid Medid Sandwichange For Hofzinser