1

Open file

2011-10-15

2

Fool's mate

2011-10-22

3

Light square

2011-10-29

4

Dubious move

2011-11-05

5

Touch and move

2011-11-12

6

Over step

2011-11-19

7

Weak square

2011-11-26

8

Distraction

2011-12-03

9

Connected passed pawn

2011-12-10

10

Illegal move

2011-12-24

11

Backward pawn

2012-01-07

12

Block

2012-01-14

13

Bad move

2012-01-21

14

Smothered mate

2012-01-28

15

Triangulation

2012-02-04

16

Automaton

2012-02-18

17

Dynamic possibilities

2012-02-25

18

Transposition

2012-03-03

19

Queening square

2012-03-10

20

Triple rook

2012-03-17

21

Grand master

2012-03-24