Sudoku Training
ISBN 978-1-4251-1318-6, published on June 200 by Trafford Publishing
Order online at www.trafford.com/06-3077
E-mail order: order@trafford.com
The book describes the Value and Candidate Rules, the Trial and Error
technology of Sudoku, and proposes a logical and systematic resolution
of Sudoku puzzles.
Explained Sudoku
ISBN 978-4251-3778-6, published in November 2007 by Trafford Publishing
Order online at www.trafford.com/07-1504
E-mail order: order@trafford.com
The book describes a standard method to logically and systematically
solve Sudoku puzzles and applies the method to solve with explanation
30 hard to tough Sudoku puzzles.
Ô Chữ Việt Nam – Quy ước và Thực hành
(Vietnamese Crosswords – Conventions and Practices)
ISBN 978-1-4269-1310-5, published in October 2009
Order online at www.trafford.com
E-mail order: order@trafford.com
The book promotes a specific method to create and solve Vietnamese
Crossword puzzles. It contains solutions of twelve 7×7 puzzles, twelve
9×9 puzzles, ten 11×11 puzzles, ten 13×13 puzzles and ten 15×15 puzzles.
Mathematical Chess
ISBN978-1-5434-0163-9, published in July 2019 by Xlibris
Order online at www.Xlibris.com.au
E-mail order: Orders@Xlibris.com.au
Mathematical Chess is a two-player educational and entertaining game
played on ten Digit pieces (0, 1. 2, 3, 4, 5, 6, 7, 8, 9) and six operator pieces
(Addition, subtraction, multiplication, division, power, root). The game has
12 rules played on a chessboard made up of nine vertical and nine
horizontal lines equally separated.
Logical Crossnumber Puzzles
ISBN 978-1-7960-0786-2, published in February 2020 by Xlibris
Order online at www.Xlibris.com.au
E-mail order: Orders@Xlibris.com.au
The book enhances the structure and contents of the old Crossnumber
puzzles by making their clues more precise, easily and quickly understood,
the numbers easily located and relationships between numbers easily
formulated.
The book has 50 puzzles of 5 levels of difficulty, covering sophisticated
mathematical knowledge, not just simple arithmetical relations between
numbers, making the solving of the puzzles more challenging and more
useful to the development of the brain and the acquisition of mathematical
abilities.
New Math Chess
ISBN978-1-9845-0689-4, published in July 2020 by Xlibris
Order online at www.Xlibris.com.au
E-mail order: Orders@Xlibris.com.au
This book is an enhanced version of the book “Mathematical Chess”
published in 2009.
New Math Chess is a two-player educational and recreational game
played on ten Digit pieces (0, 1, 2, 3, 4, 5, 6, 7, 8, 9) and six Operator
pieces (Addition, Subtraction, Multiplication, Division, Power (Square
& Cube), and Root (Square Root & Cube Root)).
The book focuses on the explanation and applications of four
fundamental concepts governing the feasibility and the success of the
book: (i) Attachment of Digits to an Operator, (ii) Partial Values of an
Operator, (iii) Partial Equality of two Partial Values of an Operator,
(iv) Partial Equality of an Operator with its Partial Values.
The book provides 20 chess games with solutions for the readers to
practice. New Math Chess is flexible and suitable for all students
from middle and high schools to universities.
ĐỌC VUI VÀ SUY NGHĨ 