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 Puzzle: A New Logic Innovation Challenge
This puzzle type I created for "Contest for best logic innovation" Snakes Puzzle Instructions Fill the grid with snakes s...
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...
Antaksari Snake (WPC Style Puzzles #S1)
This 'Antaksari Snake' Puzzle type I created for the "Contest for best logic innovation". Antaksari is a very popul...
Heavy Top Skyscrapers: H1
This puzzle type I created for "Contest for best logic innovation" Instructions: Fill the grid with digits 1 to 5, so tha...
Outside Sum Tapa: O1
Tapa is quite nice puzzle and getting famous like Sudoku. There is now weekly Tapa Variation Contest. I have created some of the Tapa puzz...
Improve Logic with This Unique Tapa Cave Puzzle
There is now a weekly Tapa Variation Contest. I have created some of the Tapa puzzles for the practice of this contest. This is a new puz...
Minesweepers Tapa: M1
There is now weekly Tapa Variation Contest. I have created some of the Tapa puzzles for the practice of this contest. This is new puzzle...
