Excellent and very challenging

This is a great collection of exercises on the tactical side of chess. They are organized staring with mate in two, then three, four, and so on. You can skip around as you like and Im currently at the mate is five section. Theres still one mate in four that stumps me though. I love that the computer will play any variation, so you can learn why "your" idea doesnt work. Puzzle hero, another great collection, doesnt do this. I recommend both. Thanks for this great piece of solid work!

Procrastigamer about Chess Puzzles: World Champions