Instruct: Classify Amazon reviews into positive or negative sentiment
Query: Very disappointing and full of errors!!!

There are THREE ERRORS IN THE FIRST TWELVE PUZZLES THAT I COULD FIND... and I am a novice... so I didn't bother looking at the book any further! I'm taking the book back... although it may be useful as kindling. Who did the editing... DID ANYONE ACTUALLY WORK THROUGH THE SOLUTIONS??? Sample solution "errors":Puzzle #8: CORRECT ANSWER should be 1 Qa5 threatens Qxc7#, and 2 Qxh5.Puzzle #10: White responses are illogical. White could at least gain one of the Rooks for its lost Queen... rather than leaving Black with both Rooks as the authors suggest. CORRECT ANSWER and replies should be:1 ... Rd4+, 2 f4 Rxf4+, 3 Qxf4 Nxf4Puzzle #12: CORRECT ANSWER is the AMAZINGLY complex SINGLE move of1 Qg8#! It seems UNBELIEVABLE that the author suggests some round about two move alternative when MATE is plainly staring at you.Very disappointing. An "Official American Mensa Puzzle Book"... HA!