Heyawake: H3
This is one of my favorite puzzles. This is as addictive as Sudoku . Rules of Heyawake 1. The rectangle, divided by bold lines, ...
Rules of "Four Squares"
Four Squares puzzle appeared in World Puzzle Championship 2009 . I have prepared couple of puzzles of this type which I will be posting so...
Sudoku Mock Tests
For the preparations for the World Sudoku Championships (WSC), Mock Sudoku Test is held by Logic Masters India every week before the WSC....
Prime Number Sudoku (Fun With Sudoku #28) Solution
Here is the answer to my previous Sudoku League Puzzle titled " Prime Number Sudoku (Fun With Sudoku #28) ". Can you solve this Pr...
Classic Sudoku (Fun With Sudoku #25) Solution
Here is the answer to the Sudoku League Puzzle titled " Classic Sudoku (Fun With Sudoku #25) ". Can you solve this Classic Sud...
Tripod Sudoku: T1
This Tripod Sudoku puzzle I created for 10th 24 hour Championship. Tripod Sudoku also appeared in the following championships Oguz At...
Classic Sudoku (Fun With Sudoku #254) Puzzle Solution
Here is the solution for the Classic Sudoku Puzzle. This Sudoku is published with the title Classic Sudoku Puzzle (Fun With Sudoku #254) ....
Even Odd Sudoku (Mini Sudoku Series #96) Solution
This is the solution to the Even-Odd Sudoku published with the title Even Odd Sudoku (Mini Sudoku Series #96) . Can you solve this Even O...
Tripod Sudoku : T2
Tripod Sudoku Instructions Fill the grid with digits 1-6 and divide the grid into some regions, so that each digit appears exactly on...
Mini Kropki Sudoku: K2
This Puzzle type appeared in the following championships "18th World Puzzle Championship, Antalya (Turkey)" World Sudok...
Diagonal Sudoku (Daily Sudoku League #176) Answer
Here is the solution to Diagonal Sudoku which is titled Diagonal Sudoku (Daily Sudoku League #176) Try solving the Diagonal Sudoku and wr...
Rules of Round Sudoku
Round Sudoku is also known as Circular Sudoku or Target Sudoku. It is different from Classic Sudoku as one has to think circularly while s...
LMI Monthly Test - May 2010 - Mastermind Twins
After a successful weekly Sudoku Mock Tests, Logic Masters India (LMI) is now starting LMI Monthly Test. May 2010 test is named as "...
Sudoku 2D: CS9
This is very basic Sudoku type. I have written the computer program to generate these type of puzzles. This the computer generated Sud...
Sudoku 2D: CS8
This is very basic Sudoku type. I have written the computer program to generate these type of puzzles. This the computer generated Sud...
Snail Sudoku-1
Snail Sudoku is one of my favorite Sudoku type. This puzzle type appeared in Oğuz Atay Puzzle Contests (OAPC) and The Last Sudoku Compe...
Sudoku 2D: CS7
This is very basic Sudoku type. I have written the computer program to generate these type of puzzles. This the computer generated Sud...
Sudoku 2D: CS6
This is very basic Sudoku type. I have written the computer program to generate these type of puzzles. This the computer generated Sud...
Sudoku Cup 4
The sudoku club Kabrňáci and SČHAK (the Czech Puzzlers and Crossworders Union) are to announce the unique online "sudokucup" tou...
Number Place - Skyscraper With Empty Space
"Number Place - Skyscraper With Empty Space" Instructions The grid represents a plot with buildings of different heights. Fi...
Sparse Skyscrapers: SS1
"Sparse Skyscrapers" Instructions: Fill the grid in such a way that every row and every column contains numbers from the g...
Tight Fit Sudoku (Daily Sudoku League #174) Answer
Here is the answer to Tight Fit Sudoku which is titled Tight Fit Sudoku (Daily Sudoku League #174) Can you solve this Tight Fit Sudoku? ...
Arrow Loop: A1
This is the first new puzzle variation which I created. Earlier I have posted this puzzle at my puzzle blog but now will be posting this t...
Diagonal Loop: D1
Instructions: Draw a single closed loop by connecting neighboring corners diagonally (but not horizontally or vertically). A numbered cir...
Crossing Masyu: C1
Rules of Crossing Masyu Puzzle Moving from square to square, draw a closed path that passes through every circle and cross itself onl...
The First Online Sudoku Competition After WSC
Here is the mail from Fred regarding this championship. Hi, If you participate in World Sudoku Championship (WSC) and you...
Two Snakes: T1
Two Snakes Instructions Draw two snakes in the grid, whose head and tail (if given) are greyed cells. A snake doesn't touch itself...
Masyu Snake: M1
Instructions: Draw a snake in the grid, whose head and tail (if given) are greyed squares. Snake doesn't touch itself, not even diag...
Dotty Snake (WPC Style Puzzles #D1)
This is the new Puzzle Variations named Dotty Snake. This puzzle is an example to explain the rules of this puzzle type. Dotty Snake Instru...
Paint the Snake: P1
This is the variation of very famous puzzle known with many names "Paint by Numbers", Nanograms or Griddlers. " Paint ...
Loop Painting: L1
This is the variation of very famous puzzle known with many names "Paint by Numbers", Nanograms or Griddlers. "Loop Pa...
Palindrome ABCD End View: P1
This puzzle type I created for "Contest for best logic innovation" Palindrome ABCD End View Instructions Fill the grid wit...
Palindrome Skyscrapers: P1
This puzzle type I created for "Contest for best logic innovation" Instructions: Fill the grid with numbers from 1 to 3 (repr...
Snakes: S1
This puzzle type I created for "Contest for best logic innovation" Snakes Instructions Fill the grid with snakes so that ...
Logic Challenge: Master the Double Skyscrapers Puzzle
Double Skyscrapers Puzzle Instructions Fill the grid with digits 1 to 3, so that each digit appears exactly twice in every row/column. The ...
Wolves in Polygraph: W1
This puzzle type I created for "Contest for best logic innovation" Instructions: Draw a single continuous loop by connect...
Snail Skyscrapers: S1
This puzzle type I created for "Contest for best logic innovation" Snail Skyscrapers Instructions Fill the grid with dig...
Network: N1
Instructions of Network Puzzle Connect Blackened and White Circles at center represented by N. Connection at N should have at least ...
MineSweepers in Loop: M1
This puzzle type I created for "Contest for best logic innovation" Instructions: Place some mines in each diagram so that...
