Same Direction Cannons :
Filed Chariot vs Slow Chariot
ECCO:D14 顺炮直车对缓开车
Red H7+6/H7+8 vs Black Pawn Ranked Cannon

In the ancient times, the Same Direction Cannons was once the most commonly played openings, BUT red would either choose the filed chariot and black would answer with the ranked chariot or vice versa.  And the filed chariot variation by red seemed to have a distinct upperhand.
In the latter part of the 20th century however, instead of playing the ranked chariot, black came up with P7+1 instead of the ranked chariot move of R9+1. This opened a whole new chapter to this opening. There have not been any official name for the black variation so I have coined it the "slow chariot" variation, in view of the tactics used.
Since then, red has also come up with his version of the slow chariot variation. And black added H2+3 instead of P7+1 to solidify the center, as a second alternative to the slow chariot variation. Still, it is a new opening relatively with much room for study and improvement.
In the following boards, I have scanned a few books and the moves recorded are basically from Master Yan Wenqing and Master Zhang Qiang's series on openings. It represents a short introduction to this opening.
I need ideas to improve, and if you find any major mistakes, please email me at or . I need feedback!

This variation on the left board was found in the 70's but has been largely supplanted by H7+8, but nevertheless, it is still an important board to know.
The variation on the right board is still played in competitions nowadays.

First created : 29th October 2011
Last modified: 18th November 2011
Acknowledgements: None yet

1. <<象棋实战技法>> by 傅宝胜
2. <<象棋步局精要>> by  刘殿中 齐津安
3. Various internet sources.  
4. <<布局定式与战理>> 阎文清 张强 . Some of the videos that you see on this site by HK Jimmy are based on this book or other books in a series of books by the same authors. Perhaps one of the best series of books on openings in the past 2 decades.

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