September 11, 2012

Puzzle 041 - Regional Yajilin (LMI Practice)

LMI test "Borders & Beyond"

Rules:
Shade in some cells. Shaded cells are not allowed to be orthogonally adjacent.
Draw a closed loop that passes through all the remaining cells.
A number in a region indicate the number of shaded cells in that region.
Some segments of the loop may be given.

12/09/11 fixed


September 8, 2012

Puzzle 040 - Coded Skyscrapers

Rules for Skyscrapers

Some numbers are replaced with letters.
The same letters are the same digits and different letters are different digits.


August 23, 2012

Puzzle 037 - Coded Skyscrapers

Rules for Skyscrapers

The numbers  are replaced with letters.
The same letters are the same digits and different letters are different digits.

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.