One of the advantages of having a dealing machine is that the hands are generated by a computer. The following PBN 1.0 test file has been generated from a duplicate played on the 1st December 1998 and has been tested on GIB V2.5.6 and PBN Viewer V1.2
Note that GIB appears to have a bug where a contract must be specified so each hand is played in 1C ! Please feel free to email any feedback on the file.
For more information on PBN (Portable Bridge Notation) please follow the link below:
http://www.iaehv.nl/users/veugent/pbn.html
Hand Distributions
For many people used to hand shuffled deals, the perception is that computer dealt hands often appear highly distributional ! To prove that the computer hands are not that unusual, the hand shape frequencies for 1998 and 1999 (up to 17th April) are shown below:
| Hand Pattern | 1998 |
1999 |
Expected |
| |
|
|
|
| 4432 |
21.67% |
21.60% |
21.55% |
| 5332 |
15.53% |
15.69% |
15.52% |
| 5431 |
12.36% |
13.18% |
12.93% |
| 5422 |
10.76% |
11.59% |
10.58% |
| 4333 |
10.72%> |
9.82% |
10.54% |
| 6322 |
5.76% |
5.26% |
5.64% |
| 6421 |
4.53% |
4.75% |
4.70% |
| 6331 |
3.47% |
3.20% |
3.45% |
| 5521 |
3.01% |
3.28% |
3.17% |
| 4441 |
3.10% |
3.02% |
2.99% |
| 7321 |
0.90% |
1.98% |
0.88% |
| 6430 |
1.31% |
1.12% |
1.33% |
| 5440 |
1.32% |
1.24% |
1.24% |
| 5530 |
0.86% |
0.71% |
0.90% |
| 6511 |
0.72% |
0.77% |
0.71% |
| 6520 |
0.69% |
0.73% |
0.65% |
| 7222 |
0.49% |
0.35% |
0.51% |
| 7411 |
0.36% |
0.35% |
0.39% |
| 7420 |
0.47% |
0.37% |
0.36% |
| 7330 |
0.29% |
0.22% |
0.27% |
| Other |
0.70% |
0.77% |
0.69% |
| 18096 hands |
4808 hands |