Logic Masters Deutschland e.V.

Tetris ist so Toll, by HertogHJ

• Sudoku:
  Place the digits 1-9 in each row, column and 3x3 box.
• Double Tetris:
  Place each of the five shapes of tetrominoes twice in the grid, so that no tetromino touches any other tetromino, not even diagonally.
  The given cage in r4c1 is not part of any tetromino.
  A tentromino is a group of 4 cells connected by their edges. Rotations and reflections count as the same shape.
• 15 sum tetrominoes:
  The digits within each individual tetromino sum to 15.
  Digits may repeat within a tetromino.
• Set clones:
  Equal shapes of tetromino contain equal sets of digits (same four digits, though the order may be different).
  Different shapes don't necessarily contain different sets of digits.
• No 15 dominoes:
  No two directly adjacent digits sum to 15.
• Thermometer:
  Digits along the thermometer increase from the bulb to the tip.