Results of Look-ahead Algorithm

After weeks of CPU time, mostly on an old 68000, I arrived at this solution. This was well ahead of any other attempts (by me or by others in my family). I gave it to my mother who made it into a chart for the bridge club. They made zillions of copies of it and handed one to each bridge player each time they met.

Looking back at the solution, it appears that some minor adjustments were made manually but nothing significant.

Here is the seating arrangement:

AEKM DFJX GINT BLRV HPCW OQSU
PQBC AFOT DELW GJRU IMSX HKNV
DMTU GKPX AHLQ BNFW JOCV IRES
APIV EGCU DKOR BHTX FNLS JMQW
BGLO CNRX EJPT FMQV DHIU AKSW
ADGV BKJS FRPU HIOW ENQX CLMT
BMHR DPSV CFIK AJNU GQTW ELOX
UVWX IJKL MNOP EFGH ABCD QRST

Here is the scoring table. This seating arrangement has 33 "bad seatings".

Seating Repetitions
A B C D E F G H I J K L M N O P Q R S T U V W X

A 1 1 2 1 1 1 1 1 1 2 1 1 1 1 1 1 0 1 1 1 2 1 0

B 1 2 1 0 1 1 2 0 1 1 2 1 1 1 1 1 2 1 1 0 1 1 1

C 1 2 1 1 1 1 1 1 1 1 1 1 1 1 2 1 1 0 1 1 1 1 1

D 2 1 1 1 1 1 1 1 1 1 1 1 0 1 1 0 1 1 1 2 2 1 1

E 1 0 1 1 1 2 1 1 1 1 2 1 1 1 1 1 1 1 1 1 0 1 2

F 1 1 1 1 1 1 1 1 1 1 1 1 2 1 1 1 1 1 1 1 1 1 1

G 1 1 1 1 2 1 1 1 1 1 1 0 1 1 1 1 1 0 2 2 1 1 1

H 1 2 1 1 1 1 1 2 0 1 1 1 1 1 1 1 1 0 1 1 1 2 1

I 1 0 1 1 1 1 1 2 1 2 1 1 1 1 1 0 1 2 1 1 1 1 1

J 1 1 1 1 1 1 1 0 1 2 1 1 1 1 1 1 1 1 1 2 1 1 1

K 2 1 1 1 1 1 1 1 2 2 1 1 1 1 1 0 1 2 0 0 1 1 1

L 1 2 1 1 2 1 1 1 1 1 1 1 1 2 0 1 1 1 1 0 1 1 1

M 1 1 1 1 1 1 0 1 1 1 1 1 1 1 1 2 1 1 2 1 1 1 1

N 1 1 1 0 1 2 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 2

O 1 1 1 1 1 1 1 1 1 1 1 2 1 1 1 1 1 1 1 1 1 1 1

P 1 1 2 1 1 1 1 1 1 1 1 0 1 1 1 1 1 1 1 1 2 1 1

Q 1 1 1 0 1 1 1 1 0 1 0 1 2 1 1 1 1 2 2 1 1 2 1

R 0 2 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 2 1 2 1 0 1

S 1 1 0 1 1 1 0 0 2 1 2 1 1 1 1 1 2 2 1 1 1 1 1

T 1 1 1 1 1 1 2 1 1 1 0 1 2 1 1 1 2 1 1 1 0 1 1

U 1 0 1 2 1 1 2 1 1 2 0 0 1 1 1 1 1 2 1 1 1 1 1

V 2 1 1 2 0 1 1 1 1 1 1 1 1 1 1 2 1 1 1 0 1 1 1

W 1 1 1 1 1 1 1 2 1 1 1 1 1 1 1 1 2 0 1 1 1 1 1

X 0 1 1 1 2 1 1 1 1 1 1 1 1 2 1 1 1 1 1 1 1 1 1

At the time the solution was generated, I was not paying attention to the table repetitions or partner repetitions. It scored pretty badly in regard to table repetitions.

Table Repetitions
A B C D E F G H I J K L M N O P Q R S T U V W X

1 3 3 1 2 1 0 2 1 1 0 1 1 3 0 1 2 1 1 0 1 2 3 1 1

2 1 1 2 2 1 2 2 0 1 3 3 1 0 1 1 2 0 1 2 1 1 1 0 3

3 1 0 1 2 2 2 1 1 2 1 2 2 1 2 2 3 1 2 0 2 1 0 1 0

4 1 3 0 0 1 3 2 3 1 2 0 1 1 2 1 0 1 2 0 1 2 2 2 1

5 1 1 3 2 1 1 1 2 2 1 0 1 1 2 1 1 2 0 2 1 1 1 2 2

6 1 0 1 0 2 0 0 1 1 1 2 2 2 1 2 0 3 2 4 2 1 1 2 1

	A	B	C	D	E	F	G	H	I	J	K	L	M	N	O	P	Q	R	S	T	U	V	W	X
A		1	1	2	1	1	1	1	1	1	2	1	1	1	1	1	1	0	1	1	1	2	1	0
B	1		2	1	0	1	1	2	0	1	1	2	1	1	1	1	1	2	1	1	0	1	1	1
C	1	2		1	1	1	1	1	1	1	1	1	1	1	1	2	1	1	0	1	1	1	1	1
D	2	1	1		1	1	1	1	1	1	1	1	1	0	1	1	0	1	1	1	2	2	1	1
E	1	0	1	1		1	2	1	1	1	1	2	1	1	1	1	1	1	1	1	1	0	1	2
F	1	1	1	1	1		1	1	1	1	1	1	1	2	1	1	1	1	1	1	1	1	1	1
G	1	1	1	1	2	1		1	1	1	1	1	0	1	1	1	1	1	0	2	2	1	1	1
H	1	2	1	1	1	1	1		2	0	1	1	1	1	1	1	1	1	0	1	1	1	2	1
I	1	0	1	1	1	1	1	2		1	2	1	1	1	1	1	0	1	2	1	1	1	1	1
J	1	1	1	1	1	1	1	0	1		2	1	1	1	1	1	1	1	1	1	2	1	1	1
K	2	1	1	1	1	1	1	1	2	2		1	1	1	1	1	0	1	2	0	0	1	1	1
L	1	2	1	1	2	1	1	1	1	1	1		1	1	2	0	1	1	1	1	0	1	1	1
M	1	1	1	1	1	1	0	1	1	1	1	1		1	1	1	2	1	1	2	1	1	1	1
N	1	1	1	0	1	2	1	1	1	1	1	1	1		1	1	1	1	1	1	1	1	1	2
O	1	1	1	1	1	1	1	1	1	1	1	2	1	1		1	1	1	1	1	1	1	1	1
P	1	1	2	1	1	1	1	1	1	1	1	0	1	1	1		1	1	1	1	1	2	1	1
Q	1	1	1	0	1	1	1	1	0	1	0	1	2	1	1	1		1	2	2	1	1	2	1
R	0	2	1	1	1	1	1	1	1	1	1	1	1	1	1	1	1		2	1	2	1	0	1
S	1	1	0	1	1	1	0	0	2	1	2	1	1	1	1	1	2	2		1	1	1	1	1
T	1	1	1	1	1	1	2	1	1	1	0	1	2	1	1	1	2	1	1		1	0	1	1
U	1	0	1	2	1	1	2	1	1	2	0	0	1	1	1	1	1	2	1	1		1	1	1
V	2	1	1	2	0	1	1	1	1	1	1	1	1	1	1	2	1	1	1	0	1		1	1
W	1	1	1	1	1	1	1	2	1	1	1	1	1	1	1	1	2	0	1	1	1	1		1
X	0	1	1	1	2	1	1	1	1	1	1	1	1	2	1	1	1	1	1	1	1	1	1

	A	B	C	D	E	F	G	H	I	J	K	L	M	N	O	P	Q	R	S	T	U	V	W	X
1	3	3	1	2	1	0	2	1	1	0	1	1	3	0	1	2	1	1	0	1	2	3	1	1
2	1	1	2	2	1	2	2	0	1	3	3	1	0	1	1	2	0	1	2	1	1	1	0	3
3	1	0	1	2	2	2	1	1	2	1	2	2	1	2	2	3	1	2	0	2	1	0	1	0
4	1	3	0	0	1	3	2	3	1	2	0	1	1	2	1	0	1	2	0	1	2	2	2	1
5	1	1	3	2	1	1	1	2	2	1	0	1	1	2	1	1	2	0	2	1	1	1	2	2
6	1	0	1	0	2	0	0	1	1	1	2	2	2	1	2	0	3	2	4	2	1	1	2	1

	A	B	C	D	E	F	G	H	I	J	K	L	M	N	O	P	Q	R	S	T	U	V	W	X
A		1	1	2	1	1	1	1	1	1	2	1	1	1	1	1	1	0	1	1	1	2	1	0
B	1		2	1	0	1	1	2	0	1	1	2	1	1	1	1	1	2	1	1	0	1	1	1
C	1	2		1	1	1	1	1	1	1	1	1	1	1	1	2	1	1	0	1	1	1	1	1
D	2	1	1		1	1	1	1	1	1	1	1	1	0	1	1	0	1	1	1	2	2	1	1
E	1	0	1	1		1	2	1	1	1	1	2	1	1	1	1	1	1	1	1	1	0	1	2
F	1	1	1	1	1		1	1	1	1	1	1	1	2	1	1	1	1	1	1	1	1	1	1
G	1	1	1	1	2	1		1	1	1	1	1	0	1	1	1	1	1	0	2	2	1	1	1
H	1	2	1	1	1	1	1		2	0	1	1	1	1	1	1	1	1	0	1	1	1	2	1
I	1	0	1	1	1	1	1	2		1	2	1	1	1	1	1	0	1	2	1	1	1	1	1
J	1	1	1	1	1	1	1	0	1		2	1	1	1	1	1	1	1	1	1	2	1	1	1
K	2	1	1	1	1	1	1	1	2	2		1	1	1	1	1	0	1	2	0	0	1	1	1
L	1	2	1	1	2	1	1	1	1	1	1		1	1	2	0	1	1	1	1	0	1	1	1
M	1	1	1	1	1	1	0	1	1	1	1	1		1	1	1	2	1	1	2	1	1	1	1
N	1	1	1	0	1	2	1	1	1	1	1	1	1		1	1	1	1	1	1	1	1	1	2
O	1	1	1	1	1	1	1	1	1	1	1	2	1	1		1	1	1	1	1	1	1	1	1
P	1	1	2	1	1	1	1	1	1	1	1	0	1	1	1		1	1	1	1	1	2	1	1
Q	1	1	1	0	1	1	1	1	0	1	0	1	2	1	1	1		1	2	2	1	1	2	1
R	0	2	1	1	1	1	1	1	1	1	1	1	1	1	1	1	1		2	1	2	1	0	1
S	1	1	0	1	1	1	0	0	2	1	2	1	1	1	1	1	2	2		1	1	1	1	1
T	1	1	1	1	1	1	2	1	1	1	0	1	2	1	1	1	2	1	1		1	0	1	1
U	1	0	1	2	1	1	2	1	1	2	0	0	1	1	1	1	1	2	1	1		1	1	1
V	2	1	1	2	0	1	1	1	1	1	1	1	1	1	1	2	1	1	1	0	1		1	1
W	1	1	1	1	1	1	1	2	1	1	1	1	1	1	1	1	2	0	1	1	1	1		1
X	0	1	1	1	2	1	1	1	1	1	1	1	1	2	1	1	1	1	1	1	1	1	1

	A	B	C	D	E	F	G	H	I	J	K	L	M	N	O	P	Q	R	S	T	U	V	W	X
1	3	3	1	2	1	0	2	1	1	0	1	1	3	0	1	2	1	1	0	1	2	3	1	1
2	1	1	2	2	1	2	2	0	1	3	3	1	0	1	1	2	0	1	2	1	1	1	0	3
3	1	0	1	2	2	2	1	1	2	1	2	2	1	2	2	3	1	2	0	2	1	0	1	0
4	1	3	0	0	1	3	2	3	1	2	0	1	1	2	1	0	1	2	0	1	2	2	2	1
5	1	1	3	2	1	1	1	2	2	1	0	1	1	2	1	1	2	0	2	1	1	1	2	2
6	1	0	1	0	2	0	0	1	1	1	2	2	2	1	2	0	3	2	4	2	1	1	2	1

	A	B	C	D	E	F	G	H	I	J	K	L	M	N	O	P	Q	R	S	T	U	V	W	X
A		1	1	2	1	1	1	1	1	1	2	1	1	1	1	1	1	0	1	1	1	2	1	0
B	1		2	1	0	1	1	2	0	1	1	2	1	1	1	1	1	2	1	1	0	1	1	1
C	1	2		1	1	1	1	1	1	1	1	1	1	1	1	2	1	1	0	1	1	1	1	1
D	2	1	1		1	1	1	1	1	1	1	1	1	0	1	1	0	1	1	1	2	2	1	1
E	1	0	1	1		1	2	1	1	1	1	2	1	1	1	1	1	1	1	1	1	0	1	2
F	1	1	1	1	1		1	1	1	1	1	1	1	2	1	1	1	1	1	1	1	1	1	1
G	1	1	1	1	2	1		1	1	1	1	1	0	1	1	1	1	1	0	2	2	1	1	1
H	1	2	1	1	1	1	1		2	0	1	1	1	1	1	1	1	1	0	1	1	1	2	1
I	1	0	1	1	1	1	1	2		1	2	1	1	1	1	1	0	1	2	1	1	1	1	1
J	1	1	1	1	1	1	1	0	1		2	1	1	1	1	1	1	1	1	1	2	1	1	1
K	2	1	1	1	1	1	1	1	2	2		1	1	1	1	1	0	1	2	0	0	1	1	1
L	1	2	1	1	2	1	1	1	1	1	1		1	1	2	0	1	1	1	1	0	1	1	1
M	1	1	1	1	1	1	0	1	1	1	1	1		1	1	1	2	1	1	2	1	1	1	1
N	1	1	1	0	1	2	1	1	1	1	1	1	1		1	1	1	1	1	1	1	1	1	2
O	1	1	1	1	1	1	1	1	1	1	1	2	1	1		1	1	1	1	1	1	1	1	1
P	1	1	2	1	1	1	1	1	1	1	1	0	1	1	1		1	1	1	1	1	2	1	1
Q	1	1	1	0	1	1	1	1	0	1	0	1	2	1	1	1		1	2	2	1	1	2	1
R	0	2	1	1	1	1	1	1	1	1	1	1	1	1	1	1	1		2	1	2	1	0	1
S	1	1	0	1	1	1	0	0	2	1	2	1	1	1	1	1	2	2		1	1	1	1	1
T	1	1	1	1	1	1	2	1	1	1	0	1	2	1	1	1	2	1	1		1	0	1	1
U	1	0	1	2	1	1	2	1	1	2	0	0	1	1	1	1	1	2	1	1		1	1	1
V	2	1	1	2	0	1	1	1	1	1	1	1	1	1	1	2	1	1	1	0	1		1	1
W	1	1	1	1	1	1	1	2	1	1	1	1	1	1	1	1	2	0	1	1	1	1		1
X	0	1	1	1	2	1	1	1	1	1	1	1	1	2	1	1	1	1	1	1	1	1	1

	A	B	C	D	E	F	G	H	I	J	K	L	M	N	O	P	Q	R	S	T	U	V	W	X
1	3	3	1	2	1	0	2	1	1	0	1	1	3	0	1	2	1	1	0	1	2	3	1	1
2	1	1	2	2	1	2	2	0	1	3	3	1	0	1	1	2	0	1	2	1	1	1	0	3
3	1	0	1	2	2	2	1	1	2	1	2	2	1	2	2	3	1	2	0	2	1	0	1	0
4	1	3	0	0	1	3	2	3	1	2	0	1	1	2	1	0	1	2	0	1	2	2	2	1
5	1	1	3	2	1	1	1	2	2	1	0	1	1	2	1	1	2	0	2	1	1	1	2	2
6	1	0	1	0	2	0	0	1	1	1	2	2	2	1	2	0	3	2	4	2	1	1	2	1