Tomi2, on Feb 24 2006, 06:41 AM, said:
Here is some numbers:
A 21 hcp has on average
2.69538 Aces
2.07328 Kings
1.48755 Queens
1.02352 Jacks
0.63559 Tens
Combining the Aces and Kings together you get 7.46404 Controls (A=2 K=1)
This hand has only two Aces (below average - bad), three kings (above average - good), two queens (above average - bad), no Jacks (below average - ok) and one ten (above average - good).
It also has 7 controls which is slightly below average. I have a rule of thumb based on the actual averages that on average you will have Controls = 0.4*HCP - 1
Some of the honours are well place AK10 in spades and some not so well placed Qx in hearts - we would rather have KQ10x and Ax I think.
On balanced I think for a balanced 21 hcp with no five-card suit this hand is slightly below average but not enough to downgrade if my range was 21-??? Perhaps I would downgrade if it was 21.5-???
In my NT ladder I normally play a 18-20 range and a 20-22 range. I split the 20s based on my rule of thumb above. If my 20 has 7 or more controls I normally include it in the higher range and if it has 6 or fewer controls then I put it in the 18-20. Occasionally I might vary this say for example a 20 count with 7 controls but a QJ tight suit and no tens I would downgrade whereas I might upgrade a 6 control hand with a five-card suit and some tens and nines.