LIBROS DEL AUTOR: euler ai

10 resultados para LIBROS DEL AUTOR: euler ai

euler ai Eliminar filtro Quitar filtros
  • Proven Anti-Knight Sudoku
    Euler AI
    Anti-knight sudoku is the gentlest of the constraint-variant sudokus to learn and one of the most rewarding to solve. On top of the ordinary sudoku rules â€' row, column, and box each containing the digits one through nine exactly once â€' the anti-knight variant adds a single prohibition: no two cells a chess knight’s move apart may contain the same digit. That is the entire v...
    Disponible

    25,39 €

  • Proven Puzzles Variety Pack Vol. 1
    Euler AI
    This is the first variety pack in the Proven Puzzles line: a curated sampler of eight sudoku variants, drawn from every title in our launch tranche, arranged so that a reader new to variant sudoku can work through them in a sensible order. If you have enjoyed ordinary sudoku for years and want a single book that introduces you to the constraint-variant world without forcing you...
    Disponible

    25,69 €

  • Proven Thermo Sudoku
    Euler AI
    Thermo sudoku takes the ordinary sudoku grid and overlays it with a set of thermometer paths. Each thermometer has a bulb (the rounded end) and a tip (the pointed end), and the rule is brief and elegant: digits along the thermometer must increase strictly from bulb to tip. A two-cell thermometer admits only pairs where the second digit exceeds the first. A seven-cell thermomete...
    Disponible

    25,68 €

  • Proven Arrow Sudoku
    Euler AI
    Arrow sudoku adds arithmetic and spatial reasoning to the ordinary sudoku grid in a single elegant rule: each arrow in the puzzle consists of a circle and a directed path of cells, and the digit in the circle equals the sum of the digits along the arrow. From that one rule an entire solving vocabulary emerges. The range of possible circle values is determined by the arrow’s len...
    Disponible

    25,68 €

  • Proven Samurai Sudoku
    Euler AI
    Samurai sudoku is the pentagonal variant of ordinary sudoku: five nine-by-nine grids arranged so that four outer grids share their corner three-by-three boxes with a central fifth grid. The resulting figure â€' 369 cells in total â€' looks at first glance like five independent sudoku puzzles stapled together, but the shared corner regions are what make the variant interesting. ...
    Disponible

    22,47 €

  • Proven Jigsaw Sudoku
    Euler AI
    Jigsaw sudoku replaces the familiar three-by-three boxes of ordinary sudoku with irregular nine-cell regions that snake across the grid like puzzle pieces. Row and column constraints remain â€' each row and column still contains the digits one through nine exactly once â€' but the box constraint is now interpreted over the irregular shapes. The variant is sometimes called 'squi...
    Disponible

    25,39 €

  • Proven Miracle Sudoku
    Euler AI
    Miracle sudoku is, in the opinion of nearly every constraint-variant enthusiast who has attempted it, the most remarkable sudoku variant ever devised. On top of the ordinary sudoku rules â€' row, column, and box each containing the digits one through nine exactly once â€' the Miracle variant imposes three further prohibitions. No two cells a knight’s move apart may contain the ...
    Disponible

    22,47 €

  • Proven Prime Killer Sudoku
    Euler AI
    This is a book that, to our knowledge, has never before appeared in print: 163 killer sudoku puzzles in which every cage sum is a prime number. We believe this is the first commercially published collection of prime killer sudoku, and we chose the puzzle count of 163 deliberately â€' 163 is a Heegner number, one of only nine integers with a celebrated connection to algebraic nu...
    Disponible

    25,72 €

  • Proven Killer Sudoku
    Euler AI
    Every puzzle in this book has been proved to have exactly one solution â€' not by inspection, not by hand, but by a computational verification pipeline that rejects any grid that admits more than one answer. That is the promise of Proven Puzzles: algorithmic generation, algorithmic verification, and a cryptographic hash under every answer grid that identifies the exact puzzleâ€...
    Disponible

    25,39 €

  • Proven Killer Sudoku
    Euler AI
    This is the harder of our two killer sudoku volumes, aimed at solvers who have mastered the gentler collections and now want grids that fight back. Every puzzle has been computationally generated, graded for difficulty by our solver engine, and proved by exhaustive verification to have exactly one solution. The answer key at the back shows a cryptographic hash under every grid ...
    Disponible

    25,39 €