Hard to Master Series | Bookhype

Book 1

Cover of Straights Puzzles Book - 200 Hard to Master Puzzles 9x9 (Volume 1)

Straights Puzzles Book - 200 Hard to Master Puzzles 9x9 (Volume 1)

by Oliver Quincy

Published 28 June 2018

Book 1

Cover of Suguru - 200 Hard to Master Puzzles 9x9 (Volume 1)

Suguru - 200 Hard to Master Puzzles 9x9 (Volume 1)

by Oliver Quincy

Published 18 December 2017

Book 1

Cover of Killer Sudoku - 200 Hard to Master Puzzles 9x9 (Volume 1)

Killer Sudoku - 200 Hard to Master Puzzles 9x9 (Volume 1)

by Oliver Quincy

Published 9 February 2018

Book 2

Cover of Killer Sudoku - 200 Hard to Master Puzzles 9x9 (Volume 2)

Killer Sudoku - 200 Hard to Master Puzzles 9x9 (Volume 2)

by Oliver Quincy

Published 8 February 2018

Book 2

Cover of Straights Puzzles Book - 200 Hard to Master Puzzles 9x9 (Volume 2)

Straights Puzzles Book - 200 Hard to Master Puzzles 9x9 (Volume 2)

by Oliver Quincy

Published 28 June 2018

Book 2

Cover of Suguru - 200 Hard to Master Puzzles 9x9 (Volume 2)

Suguru - 200 Hard to Master Puzzles 9x9 (Volume 2)

by Oliver Quincy

Published 18 December 2017

Book 3

Cover of Suguru - 200 Hard to Master Puzzles 9x9 (Volume 3)

Suguru - 200 Hard to Master Puzzles 9x9 (Volume 3)

by Oliver Quincy

Published 18 December 2017

Book 3

Cover of Straights Puzzles Book - 200 Hard to Master Puzzles 9x9 (Volume 3)

Straights Puzzles Book - 200 Hard to Master Puzzles 9x9 (Volume 3)

by Oliver Quincy

Published 30 June 2018

Book 3

Cover of Killer Sudoku - 200 Hard to Master Puzzles 9x9 (Volume 3)

Killer Sudoku - 200 Hard to Master Puzzles 9x9 (Volume 3)

by Oliver Quincy

Published 8 February 2018

Book 4

Cover of Suguru - 200 Hard to Master Puzzles 9x9 (Volume 4)

Suguru - 200 Hard to Master Puzzles 9x9 (Volume 4)

by Oliver Quincy

Published 18 December 2017

Book 4

Cover of Killer Sudoku - 200 Hard to Master Puzzles 9x9 (Volume 4)

Killer Sudoku - 200 Hard to Master Puzzles 9x9 (Volume 4)

by Oliver Quincy

Published 8 February 2018

Book 4

Cover of Straights Puzzles Book - 200 Hard to Master Puzzles 9x9 (Volume 4)

Straights Puzzles Book - 200 Hard to Master Puzzles 9x9 (Volume 4)

by Oliver Quincy

Published 28 June 2018

Book 5

Cover of Killer Sudoku - 200 Hard to Master Puzzles 9x9 (Volume 5)

Killer Sudoku - 200 Hard to Master Puzzles 9x9 (Volume 5)

by Oliver Quincy

Published 8 February 2018

Book 5

Cover of Straights Puzzles Book - 200 Hard to Master Puzzles 9x9 (Volume 5)

Straights Puzzles Book - 200 Hard to Master Puzzles 9x9 (Volume 5)

by Oliver Quincy

Published 28 June 2018

Book 5

Cover of Suguru - 200 Hard to Master Puzzles 9x9 (Volume 5)

Suguru - 200 Hard to Master Puzzles 9x9 (Volume 5)

by Oliver Quincy

Published 18 December 2017

Book 6

Cover of Straights Puzzles Book - 200 Hard to Master Puzzles 9x9 (Volume 6)

Straights Puzzles Book - 200 Hard to Master Puzzles 9x9 (Volume 6)

by Oliver Quincy

Published 18 November 2019

Book 6

Cover of Killer Sudoku - 200 Hard to Master Puzzles 9x9 (Volume 6)

Killer Sudoku - 200 Hard to Master Puzzles 9x9 (Volume 6)

by Oliver Quincy

Published 6 December 2019

Book 6

Cover of Numbricks Puzzles Book - 200 Hard to Master Puzzles 9x9 (Volume 6)

Numbricks Puzzles Book - 200 Hard to Master Puzzles 9x9 (Volume 6)

by Oliver Quincy

Published 28 January 2020

Book 6

Cover of Suguru - 200 Hard to Master Puzzles 9x9 (Volume 6)

Suguru - 200 Hard to Master Puzzles 9x9 (Volume 6)

by Oliver Quincy

Published 26 November 2019

Book 6

Cover of Calcudoku Puzzles Book - 200 Hard to Master Puzzles 9x9 (Volume 6)

Calcudoku Puzzles Book - 200 Hard to Master Puzzles 9x9 (Volume 6)

by Oliver Quincy

Published 26 January 2020