July 31, 2012

Puzzle 033 - Even Sandwich Sudoku (LMI Practice)

LMI Sudoku test "Classics vs. Innovatives"

Rule:
Apply classic Sudoku rules.

Numbers on the top show the digits sandwiched by even numbers(i.e. digits whose vertically adjacent cells are both even) in the corresponding column in any order.
Numbers on the left show the digits sandwiched by even numbers in the corresponding row in any order.

All possible numbers are given. In partucular,no digits are sandwiched by even numbers in clueless rows/columns.

July 17, 2012

Puzzle 031 - Dotted Loop (LMI Practice)

LMI test "Logirace"

Rules:
Draw a single closed loop passing through some cells in the grid.
This loop is snake-like, that means the loop cannot touch itself, not even diagonally.
Every 3rd square of the loop has a dot on it.
Numbers outside the grid reveal how many dots of the loop are in the corresponding row or column.
The squares marked X are not part of the snake.

July 16, 2012

Puzzle 030 - Dutch loop (LMI Practice)

LMI test "Logirace"

Rules:
Draw a single closed loop passing through all cells in the grid.
The loop cannot touch or cross itself.
It makes turn at black circle and goes straight at every white circle.
There are no loop segments on cells marked X.