Challenge M-209 - Table of Honor

George Lasry won the Challenge on January 14, 2017

Ranking for each problem

Problem

1

2

3

4

5

6

7

8

9

10

11

12

Gold Medal

NF6X

Toby

Fred

Toby

Fred

Toby

Toby

Toby

Toby

Toby

Toby

George Lasry

Silver Medal

Toby

Fred

Toby

TOMRO

Toby

TOMRO

Tokamak

TOMRO

TOMRO

George Lasry

George Lasry

Rafael Pascual

Bronze Medal

Fred

Tokamak

Tokamak

Archibald

Tokamak

Archibald

TOMRO

Archibald

Archibald

Rafael Pascual

Rafael Pascual

.

All participants

Problem	1	2	3	4	5	6	7	8	9	10	11	12
NF6X	08/12/12	.	.	.	.	.	.	.	.	.	.	.
Simon Daniels	.	.	.	.	.	.	.	.	.	.	.	.
Toby	08/12/12	08/12/12	19/12/12	15/12/12	24/12/12	22/12/12	25/12/12	27/12/12	28/12/12	08/01/13	11/01/13	.
Fred	15/12/12	16/12/12	17/12/12	.	23/12/12	.	.	.	.	.	.	.
Tokamak	23/12/12	02/01/13	24/12/12	.	27/12/12	.	03/01/13	.	.	.	.	.
TOMRO	13/02/13	14/02/13	15/02/13	08/03/13	17/02/13	18/02/13	10/04/13	13/02/13	22/02/13	.	.	.
JoelJ	.	.	.	.	.	.	.	.	.	.	.	.
Mike Valentine	.	.	.	.	.	.	.	.	.	.	.	.
Archibald	12/03/14	12/03/14	12/03/14	10/03/14	10/03/14	10/03/14	05/04/14	22/03/14	29/03/14	.	.	.
George Lasry	09/05/14	11/05/14	10/05/14	05/05/14	10/05/14	11/05/14	10/05/14	17/05/14	01/06/14	24/05/14	01/06/14	14/01/17
Gary Knight	.	.	.	.	.	.	.	.	.	.	.	.
Frank Inklaar	06/11/14	12/11/14	.	.	.	.	.	.	.	.	.	.
Rafael Pascual	25/02/15	31/03/15	28/02/15	01/06/15	12/05/15	09/03/15	10/03/15	19/05/15	26/06/15	16/03/16	15/11/15	24/10/18
Bart den Hartog	24/11/15	25/11/15	25/11/15	.	26/11/15	04/12/15	15/12/15	08/12/15	09/12/15	.	.	.
John	.	.	.	.	.	.	.	.	.	.	.	.
Cameron Jenkins	.	.	.	.	.	.	.	.	.	.	.	.
AijunGE	.	.	.	.	.	.	.	.	.	.	.	.
Javier Marcelo	21/09/20	21/09/20	21/09/20	29/09/20	02/10/20	03/10/20	04/10/20	05/10/20	05/10/20	19/10/20	.	.
Garcia Larragan	.	.	.	.	.	.	.	.	.	.	.	.
Dave Goodwin	.	.	.	.	.	.	.	.	.	.	.	.
Mahmood Tavafoghi	16/05/24	16/05/24	18/05/24	24/05/24	23/05/24	24/05/24	20/05/24	20/05/24	25/05/24	03/06/24	03/06/24	.

Bonus

1st Bonus (very easy)

G. Lasry

Toby

Rafael Pascual

Bart den Hartog

Garcia Larragan

Mahmood Tavafoghi

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.

.

2nd Bonus (easy)

G. Lasry

Toby

Rafael Pascual

Bart den Hartog

Garcia Larragan

Mahmood Tavafoghi

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.

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.

.

3rd Bonus (very difficult)

G. Lasry

Toby

Rafael Pascual

Bart den Hartog

Mahmood Tavafoghi

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4th Bonus (easy)

G. Lasry

Toby

Rafael Pascual

Bart den Hartog

Mahmood Tavafoghi

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5th Bonus (very difficult)

G. Lasry

Bart den Hartog

Rafael Pascual

Mahmood Tavafoghi

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6th Bonus (difficult)

G. Lasry

Rafael Pascual

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7th Bonus (very easy)

G. Lasry

Toby

Rafael Pascual

Bart den Hartog

Garcia Larragan

Mahmood Tavafoghi

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8th Bonus (easy)

G. Lasry

Toby

Rafael Pascual

Bart den Hartog

Mahmood Tavafoghi

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9th Bonus (difficult)

G. Lasry

Toby

Rafael Pascual

Bart den Hartog

Mahmood Tavafoghi

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10th Bonus (easy)

G. Lasry

Toby

Rafael Pascual

Bart den Hartog

Garcia Larragan

Mahmood Tavafoghi

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11th Bonus (very hard)

G. Lasry

Rafael Pascual

Mahmood Tavafoghi

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12th Bonus (very hard)

G. Lasry

Rafael Pascual

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13th Bonus (easy)

G. Lasry

Toby

Rafael Pascual

Bart den Hartog

Mahmood Tavafoghi

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14th Bonus (very hard)

G. Lasry

Rafael Pascual

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15th Bonus (very hard)

G. Lasry

Rafael Pascual

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16th Bonus (easy)

Toby

Rafael Pascual

Bart den Hartog

G. Lasry

Mahmood Tavafoghi

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17th Bonus (easy)

Toby

Rafael Pascual

Bart den Hartog

G. Lasry

Mahmood Tavafoghi

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18th Bonus (easy)

G. Lasry

Toby

Rafael Pascual

Bart den Hartog

Mahmood Tavafoghi

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19th Bonus (easy)

Toby

Rafael Pascual

Bart den Hartog

G. Lasry

Mahmood Tavafoghi

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20th Bonus (easy)

Rafael Pascual

Toby

Bart den Hartog

G. Lasry

Mahmood Tavafoghi

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21th Bonus (difficult)

G. Lasry

Rafael Pascual

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22th Bonus (very difficult)

G. Lasry

Rafael Pascual

Mahmood Tavafoghi

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23th Bonus (middle)

Rafael Pascual

G. Lasry

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24th Bonus (easy)

Rafael Pascual

Bart den Hartog

G. Lasry

Mahmood Tavafoghi

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25th Bonus (very difficult)

G. Lasry

Rafael Pascual

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26th Bonus (very difficult)

G. Lasry

Rafael Pascual

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27th Bonus (medium)

G. Lasry

Rafael Pascual

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28th Bonus (middle)

Bart den Hartog

G. Lasry

Rafael Pascual

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Congratulations

• TOBY: He was the first to solve almost all the problems. Well done!
  I also want to especially thank him for making the first tests of my problems and allow me as well to correct or improve them.
• Archibald: He solved the first nine problems without help from the computer. Amazing!
• George Lasry: By solving the eleventh bonus, he is the first cryptanalyst to decrypt a M-209 ciphertext-only message of about 1000 characters. For example, Geoff Sullivan (in his Cryptologia article) describes solving a 2500 characters message. George has also solved the 12th bonus. This problem is the reconstruction of the internal settings from only 50 characters (compare with the 75 characters of Morris’s article). George has also solved the 14th bonus. This problem is the reconstruction of the internal settings from only 40 characters. On January 2017 he solved the 12th problem: a set of cryptograms, but each one is less than 600 characters and then he won this Challenge. Great!