Tactical studies
This is just a list for me to keep. Take a look at these problems if you want...
http://www.chess.com/tactics/server.html?id=189136
http://www.chess.com/tactics/server.html?id=174708
http://www.chess.com/tactics/server.html?id=48676
http://www.chess.com/tactics/server.html?id=172870
http://www.chess.com/tactics/server.html?id=51651
http://www.chess.com/tactics/server.html?id=42681
http://www.chess.com/tactics/server.html?id=44423
http://www.chess.com/tactics/server.html?id=63997
http://www.chess.com/tactics/server.html?id=42213
http://www.chess.com/tactics/server.html?id=43973
http://www.chess.com/tactics/server.html?id=21754
http://www.chess.com/tactics/server.html?id=44053
http://www.chess.com/tactics/server.html?id=37492
http://www.chess.com/tactics/server.html?id=51625
http://www.chess.com/tactics/server.html?id=42886
http://www.chess.com/tactics/server.html?id=21926
http://www.chess.com/tactics/server.html?id=40837
http://www.chess.com/tactics/server.html?id=867
http://www.chess.com/tactics/server.html?id=39344
http://www.chess.com/tactics/server.html?id=63786
http://www.chess.com/tactics/server.html?id=66891
http://www.chess.com/tactics/server.html?id=43394
http://www.chess.com/tactics/server.html?id=40648
http://www.chess.com/tactics/server.html?id=22545
http://www.chess.com/tactics/server.html?id=23930
http://www.chess.com/tactics/server.html?id=50390
http://www.chess.com/tactics/server.html?id=43685
http://www.chess.com/tactics/server.html?id=86411
http://www.chess.com/tactics/server.html?id=57101
http://www.chess.com/tactics/server.html?id=37778
http://www.chess.com/tactics/server.html?id=41877
http://www.chess.com/tactics/server.html?id=48006
http://www.chess.com/tactics/server.html?id=40102
http://www.chess.com/tactics/server.html?id=38130
http://www.chess.com/tactics/server.html?id=76936