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  2. Excelsior (chess problem) - Wikipedia

    en.wikipedia.org/wiki/Excelsior_(chess_problem)

    Loyd had a friend who was willing to wager that he could always find the piece which delivered the principal mate of a chess problem. Loyd composed this problem as a joke and bet his friend dinner that he could not pick a piece that didn't give mate in the main line (his friend immediately identified the pawn on b2 as being the least likely to deliver mate), and when the problem was published ...

  3. Sam Loyd - Wikipedia

    en.wikipedia.org/wiki/Sam_Loyd

    The Puzzle King: Sam Loyd's Chess Problems and Selected Mathematical Puzzles (ISBN 1-886846-05-7): edited by Sid Pickard; Sam Loyd's Cyclopedia of 5000 Puzzles, Tricks and Conundrums with Answers ISBN 0-923891-78-1 – Complete 1914 book (public domain) scanned; The 8th Book of Tan (1903).

  4. Chessboard paradox - Wikipedia

    en.wikipedia.org/wiki/Chessboard_paradox

    This was later discovered in his notes after his death. The American puzzle inventor Sam Loyd claimed to have presented the chessboard paradox at the world chess congress in 1858 and it was later contained in Sam Loyd's Cyclopedia of 5,000 Puzzles, Tricks and Conundrums (1914), which was posthumously published by his son of the same name. The ...

  5. Nine dots puzzle - Wikipedia

    en.wikipedia.org/wiki/Nine_dots_puzzle

    In 1867, in the French chess journal Le Sphinx, an intellectual precursor to the nine dots puzzle appeared credited to Sam Loyd. [1] [2] Said chess puzzle corresponds to a "64 dots puzzle", i.e., marking all dots of an 8-by-8 square lattice, with an added constraint. [a] The Columbus Egg Puzzle from The Strand Magazine, 1907

  6. Chess problem - Wikipedia

    en.wikipedia.org/wiki/Chess_problem

    A chess problem, also called a chess composition, is a puzzle created by the composer using chess pieces on a chessboard, which presents the solver with a particular task.. For instance, a position may be given with the instruction that White is to move first, and checkmate Black in two moves against any possible defen

  7. Excelsior (Longfellow) - Wikipedia

    en.wikipedia.org/wiki/Excelsior_(Longfellow)

    Sam Loyd's chess problem Excelsior was named for this poem. In Italy S.A.T., the Tridentin Alpine Society which is the largest section of the Italian Alpine Club (C.A.I) has "Excelsior" as its motto referring to the poem of Longfellow. [10]

  8. Recreational mathematics - Wikipedia

    en.wikipedia.org/wiki/Recreational_mathematics

    Sam Loyd: Loyd: 1841: 1911: American Chess problem composer and author, described as "America's greatest puzzlist" by Martin Gardner. [4] Henry Dudeney: Dudeney: 1857: 1930: English Civil servant described as England's "greatest puzzlist". [5] Yakov Perelman: Perelman: 1882: 1942: Russian Author of many popular science and mathematics books ...

  9. Glossary of chess problems - Wikipedia

    en.wikipedia.org/wiki/Glossary_of_chess_problems

    A chess problem theme in which a pawn on its starting square in the initial position moves the length of the board to be promoted during the course of the solution. Named after one such problem by Sam Loyd; see Excelsior (chess problem).