Two Interesting Puzzle Sites

At one of the forums at Chess4Chicago, links to two interesting puzzle sites are provided. This site currently contains 134 problems. Clicking on the "Analysis - Movability Pieces" link brings up a board that allows you to move pieces around to help you analyze the position before submitting your proposed solution. An interesting problem is #66, as recommended by "SashaD" at the Chess4Chicago forum mentioned above. When I submitted my answer which was correct for White to move and mate in two, I received a message indicating that I had NOT correctly solved the problem. My initial reaction was "THEY are wrong!" but then I looked again a bit more carefully...

The other site noted at the forum is the (probably) better known Chess Tactics Server. It may take a short while to get the hang of this site, but you can register for free as a guest, and nearly 24,000 problems are available, according to the website.

Kudos to the Ray Chess Blog for pointing out the Chess4Chicago forum.