Level 2 [Rating 600-1000]
Skills:
Mating in 1 move in positions with many pieces on the board.
Mating with king and queen or rook.
Spotting and defending unprotected pieces.
The rule of the square and what it means in the endgame.
Double attack, fork, pin.
Basic opening principles (piece development).
We also have Android versions of courses for this level: