Sherlock Holmes Puzzles: Math and Logic Games: Over 100 Challenging Cross-Fitness Brain Exercises

Boost your brain power and detox from the digital deluge with over 100 math and logic puzzles with the greatest riddle solver of all time, Sherlock Holmes.

The mind-sharpening puzzles include monograms, which strengthen your deductive powers as you correctly fill in a grid to produce a picture; logic puzzles, which engage your deductive skills to figure out the rules of a maze; syllogisms, in which you are given a list of premises to figure out what can be deduced from them; and logic grid ...