Logic games
Grids, deductions and chains of reasoning. No luck required, just careful thinking.
19 results
Arrow (opens the game in a new tab)
A daily arrow sudoku: each circled digit is the sum of the digits along its arrow. One logical solution, notes and a hint. Free daily, no signup.
Arrow: details and ratingsCages (opens the game in a new tab)
A free daily killer sudoku: no digits printed, just cages labeled with the total of the digits inside them. Fill the 9x9 grid so every row, column, and 3x3 box holds 1 to 9 with no repeats. Free daily, no signup.
Cages: details and ratingsDaily Noodle Puzzles (opens the game in a new tab)
Eight free daily browser puzzles: Mini, Doku, Path, Sweep, Link, Tangle, Borders and Reckon. Word, number and logic challenges with the same puzzles for everyone each day, saved progress and results, shareable scores, and optional private leagues for friends a...
Daily Noodle Puzzles: details and ratingsDiag (opens the game in a new tab)
A free daily diagonal sudoku, also called Sudoku X. An ordinary 9x9 plus one rule: both long diagonals hold 1 to 9 exactly once. One logical solution, notes and a free hint, a new board every day, and a fourteen-clue Edition on Sundays. Free daily, no signup.
Diag: details and ratingsFive (opens the game in a new tab)
A daily German whispers sudoku: neighbors on every green line differ by at least 5. One logical solution, notes and a hint. Free daily, no signup.
Five: details and ratingsFrame (opens the game in a new tab)
A free daily frame sudoku. An ordinary 9x9 plus a number outside every row and column end: the sum of the three squares nearest that edge. Thirty-six sums, one logical solution, notes and a free hint, a new board every day, and a two-digit Edition on Sundays....
Frame: details and ratingsGiant (opens the game in a new tab)
A daily 16x16 sudoku (hexadoku): place 1 to 9 and A to G once in every row, column and box. One logical solution. Free daily, no signup.
Giant: details and ratingsKnight (opens the game in a new tab)
A free daily anti-knight sudoku. An ordinary 9x9 plus one rule: no digit repeats a chess knight's move away. Select a square and its knights light up. One logical solution, notes and a free hint, a new board every day, and a thirteen-clue Edition on Sundays. F...
Knight: details and ratingsMercury (opens the game in a new tab)
A free daily thermo sudoku. An ordinary 9x9 plus thermometers: digits climb from each bulb to its tip. One logical solution, notes and a free hint, a new board every day, and a nine-thermometer Edition on Sundays. Free daily, no signup.
Mercury: details and ratingsPolka (opens the game in a new tab)
A free daily kropki sudoku. No digits printed, only dots: white means neighbors differ by 1, black means one is double the other, no dot means neither. One logical solution, a new deal every day, hardest on Sundays. Free daily, no signup.
Polka: details and ratingsQuilt (opens the game in a new tab)
A free daily jigsaw sudoku: fill the 9x9 grid so every row, column, and irregular region holds 1 to 9 with no repeats. One logical solution and never a guess, notes and a free hint, a new board every day, and a harder Edition on Sundays. Free daily, no signup.
Quilt: details and ratingsRacecar (opens the game in a new tab)
A daily palindrome sudoku: every gray line reads the same from either end. One logical solution, notes and a hint. Free daily, no signup.
Racecar: details and ratingsRim (opens the game in a new tab)
A free daily outside sudoku. Nothing is printed inside the 9x9; outside some row and column ends, the three digits of the nearest three squares are printed, in no order. Free daily, no signup.
Rim: details and ratingsSando (opens the game in a new tab)
A free daily sandwich sudoku: the number beside each row and column is the total of the digits sitting between that line's 1 and its 9, so a 0 means the sandwich is empty and the two are side by side. Free daily, no signup.
Sando: details and ratingsSuds (opens the game in a new tab)
A daily classic 9x9 sudoku with one logical solution, notes and a free hint, and a harder Sunday Edition. Free daily, no signup.
Suds: details and ratingsSumo (opens the game in a new tab)
A daily greater-than (inequality) sudoku: a 9x9 with signs showing which square is bigger. One logical solution. Free daily, no signup.
Sumo: details and ratingsTowers (opens the game in a new tab)
A free daily skyscrapers puzzle. Every row and column holds each tower height once, and the border clues count the towers you can see, taller ones hiding shorter ones. One logical solution, a new 5x5 board every day, and a 7x7 Edition on Sundays. Free daily, n...
Towers: details and ratingsWhittle (opens the game in a new tab)
A free daily puzzle: a solved 6x6 sudoku with eighteen printed clues, and your job is to take clues away. A clue comes out only while the grid still has one answer. Reach the proven fewest for a perfect ten. New board daily. Free daily, no signup.
Whittle: details and ratingsWindow (opens the game in a new tab)
A daily windoku (window sudoku): four shaded windows also hold 1 to 9 once. One logical solution, notes and a hint. Free daily, no signup.
Window: details and ratings