Sunday, September 11, 2011

RJT chess -- General Ideas 2 (Attack series)

Here is a nice picture I made using screenshot and Qianhong (Go try it.), showing a position (well... yea) with red to move.



Red appears to be winning. However, if for example, R2=5, K5=6, and there is (for now) no mate! And in this game, that's a scary thought. It's tiring to think of a mate...
Instead, there exists a (hopefully I'm correct...) miraculous move in this situation! Can you find it? (Yes you can...)

C1-1!

This move prevents the shi from being any useful in the defence of the king. Amazing move!... right?

Let's assume black totally does not see the danger of this, and plays a random move!

... P5+1

Suddenly...
R2=5+
...K5=6 (K5=4 is just suicidal)
R5-1+
...K6-1 (forced)
C1=4, planning R5+1 the next move. Good game; well played!

Edit: Swapping the first and second moves totally appears to work better. Awww...

Wednesday, September 7, 2011

RJT chess -- General Ideas (Attack series)

Notice that I did not call it strategies, as the ideas I shall mention are really quite vague, but nevertheless somewhat (surprisingly) applicable to a real match of RJT chess.

This post focuses on the attacking madness bit of RJT chess, and (hopefully) another post will eventually be made (might not be by me) on the defensive bits of RJT chess and its strategies.

Big strategies
--------------
1) Getting in sufficient firepower:

Firstly, it is practically impossible to kill with just a single piece, no matter how menacing it may look, under general conditions, as any piece may interpose and hence stop its rampage. *sad face*

Hence, an important attacking idea is to ensure that at least a few pieces (depending on how good your tactical skills are as well as how blind you think your opponent is) can get in to a threatening distance of your opponent's king. (usually as long as it restricts the movement of some of your opponent's defenders; for example, a cannon (pao), as denoted conveniently by C, may pin 2 pieces to your opponent's king. Similarly, A single well placed piece may disrupt the movement of advisors (shi, denoted by A) in the palace.)

Hence an important concern is how to get sufficient firepower next to your opponent's king.

2) Make your opponent commit:

With an action as simple as stuffing a chariot (R) in front of your opponent's king, you typically would have made him commit as to which side he is keeping open and which side is more closed to attacks. Hence, it is more convenient to marshall your forces as you know where they would want to go.

3) Remember your small (but not unimportant at all) BINGS (P):

When your attack looks like it's stalling, bring in the P if there are still open lines and 'ma's (H) if there are no open lines. Since you have 5*P, that can really tie down a good portion of your enemy's pieces especially if he does not defend strategically.

4) Crowd a place when all else fails:

If your normal attacks are not going through, it is possible (and has worked before with great success) to crowd out your last checks with pieces (power of the bing!) and hence win the game by claiming that you are left with no checks at all.

Small strategies
----------------
1) Attempt to get your C directly into the line of sight of your opponent's K with absolutely nothing in between. Since nothing may be stuffed in between, a final strategic single check may prove to be absolutely fatal. Plus this really messes up your opponent's defensive formation. Also, it sounds like a good idea to move your C rather far back to create a zone where your opponent absolutely cannot place his pieces. Happiness ensues.

2) Liberate your horses! They are typically the pieces which finally gets in the important check, as it is rather simple to block off checks from all other pieces with just... well 6 defenders (2 on each side) of the king.

That's all the attacking ideas I can think of for now, and I will (may) return to give more details on each of the strategies at a later date when I finally manage to conjure up semi-professional-sounding ways to explain the how and why of each strategy. That or when I get bored again.