Notice the way he always fianchetto's the kings bishop and plays d3, if you go through his games it seems like e6 is the most common reply to his c4, the best reply against his system they figured, I guess.

The staunton-system is similiar, where c4, Nc3, g3, Bg2 are also played, but the king's knight goes to e2 after playing e3 in the staunton-system and then 0-0.

I play the Staunton almost exclusively, however I am but a novice, and often trips on blunders, but the system helps me lower the rate of them.

[Event "Weekend tournament"]
[Site "Oldenburg, Germany"]
[Date "1914.03.??"]
[EventDate "?"]
[Round "?"]
[Result "0-1"]
[White "Schuster"]
[Black "Carls, Carl Johan Margot"]
[ECO "B15"]
[WhiteElo "?"]
[BlackElo "?"]

1.e4 c6 2.d4 d5 3.Nc3 dxe4 4.Nxe4 Nf6 5.Ng3 h5 6.Bg5 h4 7.Bxf6 hxg3 8.Be5 Rxh2 9.Rxh2 Qa5+ 10.c3 Qxe5+ 11.dxe5 gxh2 0-1

http://www.chesshistory.com/winter/...

Obligatory bio link: http://de.wikipedia.org/wiki/Carl_C...

I know he wrote a few books, including one on the 'Bremer System' (English with early White finachetto).

In those days, one became a Master in Germany by winning a Hauptturnier. Carls came close with a second place finish at Hamburg 1910 (Rotlewi won), then broke through with a victory at Cologne 1911.

After this he was qualified to play in the master section of the German Chess Congress, which was equivalent to a strong international tournament. His usual finish was around 15th in an 18-20 player field, but he did score some notable individual victories, such as defeating both Spielmann and Tarrasch at Breslau, 1912.

After the war, the German congresses were generally weaker and Carls' results improved: 5th-7th at Hamburg 1921, 2nd at Oyenhaousen 1922. His major international tournament came at Baden-Baden 1925, where he finished his usual 15th in a strong 21-player field.

He had solid results playing 3rd board for Germany in the Olympiads at London 1927 (63.3%) and Hamburg 1930 (67.9%). He also competed in the Amateur Championship at Hague 1928, finishing 7th.

After this, he confined his action mostly to local tournaments for the next decade. However, he did play in the first two German Championships, finishing 4th at Bad Pyrmont 1933 (Bogoljubow 1st) and winning the title at Aachen in 1934 (though it must be said it was a very weak field). Also, in the so-called "Extra Olympiad" at Munich 1936, he played fourth board for Germany and recorded his usual solid result with 58.8%.

He was jerked back into activity for some of the Nazi-sponsored tournaments during World War II, finishing 7th-10th at Krakow 1941, 1st at Rostock 1942 (ahead of Klaus Junge, but no other important players), then withdrawing after 8 rounds at Prague, 1943. After that, the only event I can find is the German Championship at Bad Pyrmont 1949, where finished well down in the crosstable with 4.5/12.

He was not very successful in match play, losing to Bernstein (+2 -6 =2), Eljaschoff (+1 -3 =0), E. Cohn (+1 -6 =1), and Suechting (+1 -2 =0). He did win several matches from fellow Bremen player Antze in the 1930s, but these may not have been totally serious affairs.