Reference

All newly published in book form, Simplex 150 has been compiled by Mary O' Brien, who has been setting the Simplex crossword for more than 20 years

Here are another 150 puzzles from Ireland's favourite crossword.

From the global bestselling author of The Big Short, the gripping story of the maverick scientists who hunted down Covid-19

From the bestselling author of Speed of Trust and Smart Trust, a revolutionary new way to lead.

A blazingly smart, mind-bending dive into the internet with an extraordinary writer: a must-read for anyone wanting to understand the way we live today.

Appearing daily in the Irish Times for over forty years, the Simplex crossword has attracted a devoted following.

The Simplex Crossword formula has been hugely successful and made bestsellers of all six books. Appearing daily in the Irish Times for over forty years, the crossword has attracted a devoted following.

Sudoku is a real cultural phenomenon: a French fad in the 1890s, a Japanese craze in the 1980s, it is peculiarly British obsession. This book contains 201 fiendish brainteasers, ranging from easy to mind-bogglingly difficult. It provides a daily fix for the hardened Sudoku fan and sets an addictive challenge for novices. It's more than a game.