26 http://www.chess.com/tactics/server.html?id=177641 vulnerable king with a tricky second move

25 http://www.chess.com/tactics/server.html?id=148768 simple pawn promotion

24 http://www.chess.com/tactics/server.html?id=123513 endgame tactics

23 http://www.chess.com/tactics/server.html?id=192254 vulnerable king

22 http://www.chess.com/tactics/server.html?id=115161 remove defender (shortened to remove other winning lines)

21 http://www.chess.com/tactics/server.html?id=133367 trapped piece

20 http://www.chess.com/tactics/server.html?id=117179 weak king

19 http://www.chess.com/tactics/server.html?id=50750 simplification

18 http://www.chess.com/tactics/server.html?id=154301 fork

17 http://www.chess.com/tactics/server.html?id=129803 overloading

16 http://www.chess.com/tactics/server.html?id=72282 double attack

15 http://www.chess.com/tactics/server.html?id=163751 vulnerable king (last move altered to provide satisfying Q+N mate, and prevent ambiguity)

14 http://www.chess.com/tactics/server.html?id=157970 pin, pawn promotion (easy to miss)

13 http://www.chess.com/tactics/server.html?id=126257 vulnerable king (nice combination)

12 http://www.chess.com/tactics/server.html?id=179848 pin (although 18Rxe6? is still winning it is so obviously bad that I felt it ok to include the problem)

11 http://www.chess.com/tactics/server.html?id=75006 pin / fork

10 http://www.chess.com/tactics/server.html?id=147566 double attack

9 http://www.chess.com/tactics/server.html?id=153565 queen trap

8 http://www.chess.com/tactics/server.html?id=92485 check to gain tempo

7 http://www.chess.com/tactics/server.html?id=141263 multiple mating threats

6 http://www.chess.com/tactics/server.html?id=162602 Legall type position

5  http://www.chess.com/tactics/server.html?id=171928 double attack

4  http://www.chess.com/tactics/server.html?id=162511 fork

3 http://www.chess.com/tactics/server.html?id=121508 discovered attack

2 http://www.chess.com/tactics/server.html?id=55260 vulnerable king

1 http://www.chess.com/tactics/server.html?id=71799 double attack