Times Samurai Su Doku

Test your powers of logic with these challenging Su Doku puzzles. <p>For anyone who loves the challenge of Su Doku but manages to solve them within minutes, you can now enjoy the extended mental workout and ultimate endurance test of a five grid interlinked system.</p> <br> <br> <p>This is Su Doku multiplied: every column, row and 3x3 box must contain the digits 1 to 9. Where the puzzles overlap, the rows and columns do not go beyond their usual 9x9 length but the interlocking boxes give you more clues - and more complexity.</p> <p>With another 100 new Samurai puzzles to vex you for hours, lose yourself in the four levels of this book:</p> <p>10 Easy<br> <br> 40 Mild<br> <br> 40 Difficult<br> <br> 10 Super difficult</p> <p>Even the speediest of Su Doku solvers will be agonising over these ultra-complex, extended brain-teasers.</p> <p>These are the most difficult Su Doku puzzles in The Times range.</p>