Sudoku in 2017

Sudoku Challenge #4: 100 Random Sudoku Puzzles (Large Print Edition) by Challenge, Sudoku

Sudoku Challenge #5: 100 Random Sudoku Puzzles (Large Print Edition) by Challenge, Sudoku

Suduko Challange #3: Suduko Challange Random Puzzles (Large Print Edition) by Challange, Suduko

Suduko Challenge #2 (Large Print Edition) by Challenge, Sudoku

Suduko Challenge #1: 100 Random Suduko Puzzles (Large Print Edition) by Puzzle, Suduko

Sudoku & Relax, Volume 1: 200 Easy Puzzles by Dentu, Rudy

Poop Time Puzzles Sudoku Puzzle Book, 600 Puzzles: 300 Easy and 300 Medium With Solutions by Puzzles, Poop Time

Poop Time Puzzles Sudoku Puzzle Book, 600 Puzzles: 300 Hard and 300 Extra Hard With Solutions by Puzzles, Poop Time

Hard Difficulty Sudoku Puzzles Volume 4: 200 Hard Sudoku Puzzles For Advanced Players by Foxel, Paul

Poop Time Puzzles Sudoku Puzzle Book, 600 Puzzles: 300 Hard and 300 Extra Hard With Solutions by Puzzles, Poop Time

Sudoku & Relax, Volume 2: 200 Medium Puzzles by Dentu, Rudy

Sudoku & Relax, Volume 3: 200 Hard Puzzles by Dentu, Rudy

Sudoku & Relax, Volume 4: 200 Very Hard Puzzles by Dentu, Rudy

Very Hard Sudoku Puzzles: Volume 4: Very Hard Sudoku Puzzles For Advanced Players by Foxel, Paul

Poop Time Puzzles Sudoku Puzzle Book, 1,000 Easy Puzzles: Work Them Out With a Pencil, You'll Feel So Satisfied When You're Finished by Puzzles, Poop Time

Poop Time Puzzles Sudoku Puzzle Book, 1,000 Medium Puzzles: Work Them Out With a Pencil, You'll Feel So Satisfied When You're Finished by Puzzles, Poop Time

Poop Time Puzzles Sudoku Puzzle Book, 1,000 Hard Puzzles: Work Them Out With a Pencil, You'll Feel So Satisfied When You're Finished by Puzzles, Poop Time

Poop Time Puzzles Sudoku Puzzle Book, 1,000 Extra Hard Puzzles: Work Them Out With a Pencil, You'll Feel So Satisfied When You're Finished by Puzzles, Poop Time

Famous Frog Sudoku Puzzle Book 1,000 Puzzles, 500 Easy and 500 Medium: Jumbo Book With Two Levels To Challenge You by Croker, Dan

Famous Frog Sudoku Puzzle Book 1,000 Puzzles, 500 Medium and 500 Hard: Jumbo Book With Two Levels To Challenge You by Croker, Dan

Famous Frog Sudoku Puzzle Book 1,000 Puzzles, 500 Hard and 500 Very Hard: Jumbo Book With Two Levels To Challenge You by Croker, Dan

Poop Time Puzzles Sudoku Puzzle Book, 1,000 Puzzles, 500 Easy and 500 Medium: Work Them Out With a Pencil, You'll Feel So Satisfied When You're Finish by Puzzles, Poop Time

Poop Time Puzzles Sudoku Puzzle Book, 1,000 Puzzles, 500 Hard and 500 Extra Hard: Work Them Out With a Pencil, You'll Feel So Satisfied When You're Fi by Puzzles, Poop Time

My First SuDoKu Book by Jaja Media, Lubandi, J. S.

Twisted Mind Sudoku Puzzle Book, 400 Easy Super Size Mind Twisting Puzzles: One Gigantic Puzzle Per Letter Size Page by Mind, Twisted

Twisted Mind Sudoku Puzzle Book, 400 Medium Super Size Mind Twisting Puzzles: One Gigantic Puzzle Per Letter Size Page by Mind, Twisted

Twisted Mind Sudoku Puzzle Book, 400 Hard Super Size Mind Twisting Puzzles: One Gigantic Puzzle Per Letter Size Page by Mind, Twisted

Twisted Mind Sudoku Puzzle Book, 400 Extra Hard Super Size Mind Twisting Puzzles: One Gigantic Puzzle Per Letter Size Page by Mind, Twisted

Poop Time Puzzles Sudoku Puzzle Book, 1,000 Puzzles, 500 Medium and 500 Hard: Work Them Out With a Pencil, You?ll Feel So Satisfied When You?re Finish by Puzzles, Poop Time

Hard Sudoku Puzzles Volume 2: Hard Sudoku Puzzles For Advanced Players by Fold, David

Hard Sudoku Puzzles Volume 1: Hard Sudoku Puzzles For Advanced Players by Fold, David

Hard Sudoku Puzzles Volume 3: Hard Sudoku Puzzles For Advanced Players by Fold, David

Hard Sudoku Puzzle Book Volume 1: Hard Sudoku Puzzles For Advanced Players by Fold, David

Hard Sudoku Puzzle Book Volume 2: Hard Sudoku Puzzles For Advanced Players by Fold, David

Hard Sudoku Puzzle Book Volume 4: Hard Sudoku Puzzles For Advanced Players by Fold, David

Poop Time Puzzles Sudoku Puzzle Book, 200 Easy Giant Size Puzzles: One Gigantic Puzzle Per Letter Size Page by Puzzles, Poop Time

Poop Time Puzzles Sudoku Puzzle Book, 200 Medium Giant Size Puzzles: One Gigantic Puzzle Per Letter Size Page by Puzzles, Poop Time

Poop Time Puzzles Sudoku Puzzle Book, 200 Hard Giant Size Puzzles: One Gigantic Puzzle Per Letter Size Page by Puzzles, Poop Time

Poop Time Puzzles Sudoku Puzzle Book, 200 Extra Hard Giant Size Puzzles: One Gigantic Puzzle Per Letter Size Page by Puzzles, Poop Time

Medium Sudoku Puzzles Volume 3: Medium Sudoku Puzzles For Intermediate Players by Fold, David

300 Medium Sudoku Puzzle Book: Volume 2 by Watts, James

300 Medium Sudoku Puzzle Book: Volume 3 by Watts, James

300 Medium Sudoku Puzzle Book: Volume 4 by Watts, James

300 Medium Sudoku Puzzle Book: Volume 5 by Watts, James

300 Medium Sudoku Puzzle Book: Volume 1 by Watts, James

Sudoku Puzzle 4 Levels: 200 puzzle 4 levels of difficulty (easy, medium, hard, very hard)sudoku puzzle book for adults and kids (sudoku puzzle by Lawson, Carl

300 Medium Sudoku Puzzle Book: Volume 6 by Watts, James

Poop Time Puzzles Sudoku Puzzle Book, 400 Easy Giant Size Puzzles: One Gigantic Puzzle Per Letter Size Page by Puzzles, Poop Time

Poop Time Puzzles Sudoku Puzzle Book, 400 Medium Giant Size Puzzles: One Gigantic Puzzle Per Letter Size Page by Puzzles, Poop Time

Poop Time Puzzles Sudoku Puzzle Book, 400 Hard Giant Size Puzzles: One Gigantic Puzzle Per Letter Size Page by Puzzles, Poop Time

Poop Time Puzzles Sudoku Puzzle Book, 500 Hard Puzzles: Work Them Out With a Pencil, You'll Feel So Satisfied When You're Finished by Puzzles, Poop Time

Hard Sudoku Puzzle Book Volume 3: Hard Sudoku Puzzles For Advanced Players by Fold, David

Medium Sudoku Puzzle Book Volume 1: Medium Sudoku Puzzles For Intermediate Players by Fold, David

300 Medium Sudoku Puzzle Book: Volume 1 by Ga, Craig

Medium Sudoku Puzzle Book Volume 2: Medium Sudoku Puzzles For Intermediate Players by Fold, David

300 Medium Sudoku Puzzle Book: Volume 2 by Garcia, Craig

300 Medium Sudoku Puzzle Book: Volume 3 by Garcia, Craig

300 Medium Sudoku Puzzle Book: Volume 4 by Garcia, Craig

300 Medium Sudoku Puzzle Book: Volume 5 by Garcia, Craig

300 Medium Sudoku Puzzle Book: Volume 6 by Garcia, Craig

Medium Sudoku Puzzles Volume 1: Medium Sudoku Puzzles For Intermediate Players by Fold, David

Medium Sudoku Puzzle Book Volume 3: Medium Sudoku Puzzles For Intermediate Players by Fold, David

Medium Sudoku Puzzle Book Volume 4: Medium Sudoku Puzzles For Intermediate Players by Fold, David

Medium Sudoku Puzzles Volume 2: Medium Sudoku Puzzles For Intermediate Players by Fold, David

300 Medium Sudoku Puzzle Book: Volume 2 by Smith, Jim

300 Medium Sudoku Puzzle Book: Volume 3 by Smith, Jim

300 Medium Sudoku Puzzle Book: Volume 4 by Smith, Jim

300 Medium Sudoku Puzzle Book: Volume 5 by Smith, Jim

300 Medium Sudoku Puzzle Book: Volume 6 by Smith, Jim

Poop Time Puzzles Sudoku Puzzle Book, 400 Extra Hard Giant Size Puzzles: One Gigantic Puzzle Per Letter Size Page by Puzzles, Poop Time

Poop Time Puzzles Sudoku Puzzle Book, 500 Easy Puzzles: Work Them Out With a Pencil, You'll Feel So Satisfied When You're Finished by Puzzles, Poop Time

Poop Time Puzzles Sudoku Puzzle Book, 500 Medium Puzzles: Work Them Out With a Pencil, You'll Feel So Satisfied When You're Finished by Puzzles, Poop Time

Poop Time Puzzles Sudoku Puzzle Book, 500 Extra Hard Puzzles: Work Them Out With a Pencil, You'll Feel So Satisfied When You're Finished by Puzzles, Poop Time

Medium & Hard Sudoku Puzzles Volume 1: 200 Medium & Hard Difficulty Sudoku Puzzles by Boyd, Ashley

300 Medium Sudoku Puzzle Book: Volume 1 by Smith, Jim

Medium and Hard Sudoku Puzzles: 200 Medium and Hard Sudoku Puzzles by Fold, David

Medium Difficulty Sudoku Puzzles Volume 1: 200 Medium Sudoku Puzzles For Intermediate Players by Boyd, Ashley

Poop Time Puzzles Sudoku Puzzle Book, 1,500 Extra Hard Puzzles: Work Them Out With a Pencil, You'll Feel So Satisfied When You're Finished by Puzzles, Poop Time

300 Medium Sudoku Puzzle Book: Volume 1 by Allen, Randy

300 Medium Sudoku Puzzle Book: Volume 2 by Allen, Randy

300 Medium Sudoku Puzzle Book: Volume 3 by Allen, Randy

300 Medium Sudoku Puzzle Book: Volume 4 by Allen, Randy

300 Medium Sudoku Puzzle Book: Volume 5 by Allen, Randy

300 Medium Sudoku Puzzle Book: Volume 6 by Allen, Randy

Poop Time Puzzles Sudoku Puzzle Book, 1,500 Easy Puzzles: Work Them Out With a Pencil, You'll Feel So Satisfied When You're Finished by Puzzles, Poop Time

Poop Time Puzzles Sudoku Puzzle Book, 1,500 Medium Puzzles: Work Them Out With a Pencil, You'll Feel So Satisfied When You're Finished by Puzzles, Poop Time

Poop Time Puzzles Sudoku Puzzle Book, 1,500 Hard Puzzles: Work Them Out With a Pencil, You'll Feel So Satisfied When You're Finished by Puzzles, Poop Time

Sudoku Combines with Mosaic Coloring Book Lefty Version 1 For All Left-Handers / Left-Handed People: 50 Random Sudoku Puzzles Adult Coloring Book by Services, Vivatiks

Poop Time Puzzles Sudoku Puzzle Book, 200 Giant Size Puzzles, 100 Easy and 100 Medium: One Gigantic Puzzle Per Letter Size Page by Puzzles, Poop Time

Poop Time Puzzles Sudoku Puzzle Book, 200 Giant Size Puzzles, 100 Medium and 100 Hard: One Gigantic Puzzle Per Letter Size Page by Puzzles, Poop Time

Poop Time Puzzles Sudoku Puzzle Book, 200 Giant Size Puzzles, 100 Hard and 100 Extra Hard: One Gigantic Puzzle Per Letter Size Page by Puzzles, Poop Time

Poop Time Puzzles Sudoku Puzzle Book, 400 Giant Size Puzzles, 200 Easy and 200 Medium: One Gigantic Puzzle Per Letter Size Page by Puzzles, Poop Time

Poop Time Puzzles Sudoku Puzzle Book, 400 Giant Size Puzzles, 200 Medium and 200 Hard: One Gigantic Puzzle Per Letter Size Page by Puzzles, Poop Time

Poop Time Puzzles Sudoku Puzzle Book, 400 Giant Size Puzzles, 200 Hard and 200 Extra Hard: One Gigantic Puzzle Per Letter Size Page by Puzzles, Poop Time

300 Medium Sudoku Puzzle Book: Volume 1 by Darmody, Enoch

300 Medium Sudoku Puzzle Book: Volume 2 by Darmody, Enoch

300 Medium Sudoku Puzzle Book: Volume 3 by Darmody, Enoch

300 Medium Sudoku Puzzle Book: Volume 4 by Darmody, Enoch

300 Medium Sudoku Puzzle Book: Volume 5 by Darmody, Enoch

300 Medium Sudoku Puzzle Book: Volume 6 by Darmody, Enoch

Random Easy To Very Hard Sudoku Puzzles by Boyd, Ashley

Break sudoku puzzles: Random Difficulty Sudoku Puzzles book (sudoku easy to hard) by Lawson, Carl

500 Sudoku Puzzles: Easy VOLUME1 by Orville, Tina

300 Medium Sudoku Puzzle Book: Volume 2 by Solovan, Jimmy

300 Medium Sudoku Puzzle Book: Volume 3 by Solovan, Jimmy

300 Medium Sudoku Puzzle Book: Volume 1 by Solovan, Jimmy

300 Medium Sudoku Puzzle Book: Volume 4 by Solovan, Jimmy

300 Medium Sudoku Puzzle Book: Volume 5 by Solovan, Jimmy

300 Medium Sudoku Puzzle Book: Volume 6 by Solovan, Jimmy

Sudoku: With Over 450 Puzzles by Arcturus Publishing Limited

Twisted Mind Sudoku Puzzle Book, 200 Super Size Mind Twisting Puzzles, 100 Easy and 100 Medium: One Gigantic Puzzle Per Letter Size Page by Mind, Twisted

Twisted Mind Sudoku Puzzle Book, 200 Super Size Mind Twisting Puzzles, 100 Medium and 100 Hard: One Gigantic Puzzle Per Letter Size Page by Mind, Twisted

Twisted Mind Sudoku Puzzle Book, 200 Super Size Mind Twisting Puzzles, 100 Hard and 100 Extra Hard: One Gigantic Puzzle Per Letter Size Page by Mind, Twisted

Twisted Mind Sudoku Puzzle Book, 500 Easy Mind Twisting Puzzles: With Only One Level of Difficulty So No Wasted Puzzles by Mind, Twisted

Twisted Mind Sudoku Puzzle Book, 500 Hard Mind Twisting Puzzles: With Only One Level of Difficulty So No Wasted Puzzles by Mind, Twisted

Twisted Mind Sudoku Puzzle Book, 500 Extra Hard Mind Twisting Puzzles: With Only One Level of Difficulty So No Wasted Puzzles by Mind, Twisted

The Sudoku Book For Grandad: 200 Puzzles Complete With Solutions by McEwan, Tony

300 Medium Sudoku Puzzle Book: Volume 1 by Bill, Sandra

300 Medium Sudoku Puzzle Book: Volume 2 by Bill, Sandra

300 Medium Sudoku Puzzle Book: Volume 3 by Bill, Sandra

300 Medium Sudoku Puzzle Book: Volume 4 by Bill, Sandra

300 Medium Sudoku Puzzle Book: Volume 5 by Bill, Sandra

300 Medium Sudoku Puzzle Book: Volume 6 by Bill, Sandra

Twisted Mind Sudoku Puzzle Book, 500 Medium Mind Twisting Puzzles: With Only One Level of Difficulty So No Wasted Puzzles by Mind, Twisted

500 SUDOKU Puzzles: MEDIUM - Volume 2 by Orville, Tina

Very Hard Sudoku Puzzles Volume 1: Very Hard Sudoku Puzzles For Advanced Players by Fold, David

Sudoku Puzzle Book, 400 Puzzles, 200 Easy and 200 Medium: Improve Your Game With This Two Level Book by Books, Sudoku Puzzle

Sudoku Puzzle Book, 400 Puzzles, 200 Medium and 200 Hard: Improve Your Game With This Two Level Book by Books, Sudoku Puzzle

Sudoku Puzzle Book, 400 Puzzles, 200 Hard and 200 Extra Hard: Improve Your Game With This Two Level Book by Books, Sudoku Puzzle

Very Hard Sudoku Puzzles Volume 2: Very Hard Sudoku Puzzles For Advanced Players by Fold, David

300 Medium Sudoku Puzzle Book: Volume 1 by Webb, Laila

Very Hard Sudoku Puzzles Volume 3: Very Hard Sudoku Puzzles For Advanced Players by Fold, David

300 Medium Sudoku Puzzle Book: Volume 2 by Webb, Laila

300 Medium Sudoku Puzzle Book: Volume 3 by Webb, Laila

300 Medium Sudoku Puzzle Book: Volume 4 by Webb, Laila

300 Medium Sudoku Puzzle Book: Volume 5 by Webb, Laila

300 Medium Sudoku Puzzle Book: Volume 6 by Webb, Laila

Will Shortz Presents Sudoku & Chill: 200 Easy to Hard Puzzles by Shortz, Will

300 Medium Sudoku Puzzle Book: Volume 6 by Clinton, Lisa

300 Medium Sudoku Puzzle Book: Volume 1 by Clinton, Lisa

300 Medium Sudoku Puzzle Book: Volume 3 by Clinton, Lisa

300 Medium Sudoku Puzzle Book: Volume 4 by Clinton, Lisa

300 Medium Sudoku Puzzle Book: Volume 5 by Clinton, Lisa

Sudoku Puzzle Book, 500 Medium Puzzles: Single Difficulty Level For No Wasted Puzzles by Books, Sudoku Puzzle

Sudoku Puzzle Book, 500 Hard Puzzles: Single Difficulty Level For No Wasted Puzzles by Books, Sudoku Puzzle

Sudoku Puzzle Book, 500 Extra Hard Puzzles: Single Difficulty Level For No Wasted Puzzles by Books, Sudoku Puzzle

Medium Difficulty Sudoku Puzzles Volume 4: Medium Sudoku Puzzles For Intermediate Players by Pye, Alan

Sudoku Puzzles Very Hard Volume 4: Very Hard Sudoku Puzzles For Advanced Players by Pye, Alan

300 Medium Sudoku Puzzle Book: Volume 2 by Clinton, Lisa

Sodoku: Hard by Tallman, Grant

Sudoku Puzzle Book, 500 Easy Puzzles: Single Difficulty Level For No Wasted Puzzles by Books, Sudoku Puzzle

Sudoku Puzzle Book, 1,000 Puzzles, 500 EASY and 500 MEDIUM: Improve Your Game With This Two Level BARGAIN SIZE Book by Books, Sudoku Puzzle

Sudoku Puzzle Book, 1,000 Puzzles, 500 MEDIUM and 500 HARD: Improve Your Game With This Two Level BARGAIN SIZE Book by Books, Sudoku Puzzle

Sudoku Puzzle Book, 1,000 Puzzles, 500 HARD and 500 EXTRA HARD: Improve Your Game With This Two Level BARGAIN SIZE Book by Books, Sudoku Puzzle

300 Medium Sudoku Puzzle Book: Volume 1 by Philips, Jimmy

300 Medium Sudoku Puzzle Book: Volume 2 by Philips, Jimmy

300 Medium Sudoku Puzzle Book: Volume 3 by Philips, Jimmy

300 Medium Sudoku Puzzle Book: Volume 4 by Philips, Jimmy

300 Medium Sudoku Puzzle Book: Volume 5 by Philips, Jimmy

300 Medium Sudoku Puzzle Book: Volume 6 by Philips, Jimmy

Sudoku Puzzle Book, 1,000 EASY Puzzles: Bargain Sized Jumbo Book, No Wasted Puzzles With Only One Level by Books, Sudoku Puzzle

Sudoku Puzzle Book, 1,000 HARD Puzzles: Bargain Sized Jumbo Book, No Wasted Puzzles With Only One Level by Books, Sudoku Puzzle

Sudoku Puzzle Book, 1,000 EXTRA HARD Puzzles: Bargain Sized Jumbo Book, No Wasted Puzzles With Only One Level by Books, Sudoku Puzzle

300 Medium Sudoku Puzzle Book: Volume 1 by Eisenhower, Claire

300 Medium Sudoku Puzzle Book: Volume 2 by Eisenhower, Claire

300 Medium Sudoku Puzzle Book: Volume 3 by Eisenhower, Claire

300 Medium Sudoku Puzzle Book: Volume 4 by Eisenhower, Claire

300 Medium Sudoku Puzzle Book: Volume 5 by Eisenhower, Claire

300 Medium Sudoku Puzzle Book: Volume 6 by Eisenhower, Claire

Calendrier / Agenda Perpétuel avec Puzzles Sudoku - Couverture Vagues Rouges (15 x 23 cm): 56 semaines + 112 Sudokus (56 Sudokus Difficiles + 56 Sudok by Cartonnet, Virginie

Sudoku Puzzle Book, 1,000 MEDIUM Puzzles: Bargain Sized Jumbo Book, No Wasted Puzzles With Only One Level by Books, Sudoku Puzzle

300 Hard Sudoku Puzzle Book: Volume 1 by Jefferson, Reese

300 Hard Sudoku Puzzle Book: Volume 2 by Jefferson, Reese

300 Hard Sudoku Puzzle Book: Volume 3 by Jefferson, Reese

300 Hard Sudoku Puzzle Book: Volume 4 by Jefferson, Reese

300 Hard Sudoku Puzzle Book: Volume 5 by Jefferson, Reese

300 Hard Sudoku Puzzle Book: Volume 6 by Jefferson, Reese

Sudoku Puzzle Book, 600 Puzzles, 300 Easy and 300 Medium: Improve Your Game With This Two Level Book by Books, Sudoku Puzzle

Sudoku Puzzle Book, 600 Puzzles, 300 Hard and 300 Extra Hard: Improve Your Game With This Two Level Book by Books, Sudoku Puzzle

Calendrier / Agenda Perpétuel avec Puzzles Sudoku - Couverture Vagues Bleues (15 x 23 cm): 56 semaines + 112 Sudokus (56 Sudokus Difficiles + 56 Sudok by Cartonnet, Virginie

Calendrier / Agenda Perpétuel avec Puzzles Sudoku - Couverture Tournoiements Bleus (15 x 23 cm): 56 semaines + 112 Sudokus (56 Sudokus Difficiles + 56 by Cartonnet, Virginie

Calendrier / Agenda Perpétuel avec Puzzles Sudoku - Couverture Tournoiements Rouges (15 x 23 cm): 56 semaines + 112 Sudokus (56 Sudokus Difficiles + 5 by Cartonnet, Virginie

Sudoku Puzzle Book, 600 Puzzles, 300 Medium and 300 Hard: Improve Your Game With This Two Level Book by Books, Sudoku Puzzle

300 Hard Sudoku Puzzle Book: Volume 1 by Watts, James

300 Hard Sudoku Puzzle Book: Volume 2 by Watts, James

300 Hard Sudoku Puzzle Book: Volume 3 by Watts, James

300 Hard Sudoku Puzzle Book: Volume 4 by Watts, James

300 Hard Sudoku Puzzle Book: Volume 5 by Watts, James

300 Hard Sudoku Puzzle Book: Volume 6 by Watts, James

300 Hard Sudoku Puzzle Book: Volume 5 by Garcia, Craig

300 Hard Sudoku Puzzle Book: Volume 6 by Garcia, Craig

Very Hard Sudoku Puzzle Book Volume 1: Very Hard Sudoku Puzzles For Advanced Players by Fold, David

Very Hard Sudoku Puzzle Book Volume 2: Very Hard Sudoku Puzzles For Advanced Players by Fold, David

Very Hard Sudoku Puzzle Book Volume 4: Very Hard Sudoku Puzzles For Advanced Players by Fold, David

300 Hard Sudoku Puzzle Book: Volume 1 by Garcia, Craig

300 Hard Sudoku Puzzle Book: Volume 2 by Garcia, Craig

300 Hard Sudoku Puzzle Book: Volume 3 by Garcia, Craig

300 Hard Sudoku Puzzle Book: Volume 4 by Garcia, Craig

300 Hard Sudoku Puzzle Book: Volume 2 by Smith, Jim

300 Hard Sudoku Puzzle Book: Volume 3 by Smith, Jim