The Times Alpha Doku (The Times Su Doku) - Tapa blanda

Filling the Tube with many a feverish puzzle solver, Su Doku has attracted a startling number of devotees who eagerly begin their commute or leave early for lunch, puzzle in hand. Now, with Alpha Doku, solvers can turn their logic towards letters, satisfying their craving for a brisk, tantalizing mental exercise in a new and captivating way.

Alpha Doku provides 100 puzzles in varying degrees of difficulty, in the same straight-forward, engaging structure of The Times Su Doku Books 1-5 series. However, solvers will work with the letters A-H, instead of the numbers 1-9.

The Su Doku guru, Wayne Gould, has created this new puzzle collection. A figure of second-to-none Su Doku credibility, Gould sparked the craze when he brought the puzzles over from Japan and began setting them for The Times. Now, focusing his powers in a slightly different direction, Gould aims to create another mind-bending habit for puzzle solvers everywhere.

Given a new spin and fresh look, Alpha Doku promises to be both innovative and as challenging and enjoyably addictive as the original.

Wayne was named by Time magazine in 2006 as one of the 100 people who shaped the world in 2005. He now spends time travelling between his different bases in Lantau and New Hampshire in the United States, where his wife Gaye is a professor of linguistics, and other parts of the world to which his new su doku puzzles have taken him. He has two children, daughter Sally, 31, and son, Scott, 29.