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Codebusters – EXAM
2022 UMD Invitational
Team Number: _____
Team/School Name: ___________________________________
No abbreviations / PRINT LEGIBLY
Student Names (First & Last): PRINT LEGIBLY
1. ____________________________________________
2. ____________________________________________
Total Points Possible (written test): 4650
Total Points Earned:__________
There is one TIMED question, for which you will have 10 minutes to gain
a bonus as outlined in the 2022 Rules Manual. After that, it will be
worth 200 points.
There are two TIEBREAKER questions on this exam, worth a total of 500
points.
The following tables might be useful during the event.
A B C D E F G H I J K L M N O P Q R S T U V W X Y Z A A B C D E F G H I J K L M N O P Q R S T U V W X Y Z B B C D E F G H I J K L M N O P Q R S T U V W X Y Z A C C D E F G H I J K L M N O P Q R S T U V W X Y Z A B D D E F G H I J K L M N O P Q R S T U V W X Y Z A B C E E F G H I J K L M N O P Q R S T U V W X Y Z A B C D F F G H I J K L M N O P Q R S T U V W X Y Z A B C D E G G H I J K L M N O P Q R S T U V W X Y Z A B C D E F H H I J K L M N O P Q R S T U V W X Y Z A B C D E F G I I J K L M N O P Q R S T U V W X Y Z A B C D E F G H J J K L M N O P Q R S T U V W X Y Z A B C D E F G H I K K L M N O P Q R S T U V W X Y Z A B C D E F G H I J L L M N O P Q R S T U V W X Y Z A B C D E F G H I J K M M N O P Q R S T U V W X Y Z A B C D E F G H I J K L N N O P Q R S T U V W X Y Z A B C D E F G H I J K L M O O P Q R S T U V W X Y Z A B C D E F G H I J K L M N P P Q R S T U V W X Y Z A B C D E F G H I J K L M N O Q Q R S T U V W X Y Z A B C D E F G H I J K L M N O P R R S T U V W X Y Z A B C D E F G H I J K L M N O P Q S S T U V W X Y Z A B C D E F G H I J K L M N O P Q R T T U V W X Y Z A B C D E F G H I J K L M N O P Q R S U U V W X Y Z A B C D E F G H I J K L M N O P Q R S T V V W X Y Z A B C D E F G H I J K L M N O P Q R S T U W W X Y Z A B C D E F G H I J K L M N O P Q R S T U V X X Y Z A B C D E F G H I J K L M N O P Q R S T U V W Y Y Z A B C D E F G H I J K L M N O P Q R S T U V W X Z Z A B C D E F G H I J K L M N O P Q R S T U V W X Y
A B C D E F G H I J K L M N O P Q R S T U V W X Y Z 0 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25
A B C D E F G H I J K L M N O P Q R S T U V W X Y Z Z Y X W V U T S R Q P O N M L K J I H G F E D C B A
1 3 5 7 9 11 15 17 19 21 23 25 1 9 21 15 3 19 7 23 11 5 17 25
AAAAA A AABBA G ABBAA N BAABA T AAAAB B AABBB H ABBAB O BAABB U/V AAABA C ABAAA I/J ABBBA P BABAA W AAABB D ABAAB K ABBBB Q BABAB X AABAA E ABABA L BAAAA R BABBA Y AABAB F ABABB M BAAAB S BABBB Z
Timed Question [200 points] Timed Question: Solve this timed Aristocrat, which is a quote by Dr. Anthony Fauci. When you have solved it, raise your hand so that the time can be recorded and the solution checked. When you have solved it, raise your hand so that the time can be recorded and the solution checked.
N MXHPNQDV ZSPDOJ G LDVLDUBGO PUBQDHU. SXB PDDA GHQ
ODGVH DYDVS QGS: JVXZ GH DWLDVNZDHU NH UED OGR, JVXZ
VDGQNHC G PMNDHUNJNM FXBVHGO, JVXZ UGANHC MGVD XJ G
LGUNDHU. RDMGBPD XJ UENP, N VGVDOS CDU RXVDQ.
A B C D E F G H I J K L M N O P Q R S T U V W X Y Z
Frequency 2 5 3 23 2 1 16 12 7 4 5 12 6 7 6 3 5 11 14 1 9 1 5 Replacement
Codebusters 2022 School:__________
- [300 points] Solve this Xenocrypt, a quote in Spanish by Juana Inés de la Cruz.
LN FTIHKQN WCVC TCÑFV RCT, TQLN WCVC QYLNVCV RFLNT.
A B C D E F G H I J K L M N Ñ O P Q R S T U V W X Y Z
Frequency 7 3 1 1 1 4 5 1 3 2 5 5 2 1 Replacement
- [300 points] Given a=5, decrypt this Affine cipher which contains the word "repeat".
C U D X F R U D A D Y D C S F T F T Q F S C U F I L X C L S F
V D Y A F T Y F A C D S F I F L C Z C.
Codebusters 2022
- [200 points] Decode this quote by Arthur Ashe using the Vigenère cipher with the codeword "hero".
A V L S O I I C P W D W Z V V A H V B O I P P G V F V F C I
I M B R U F H Q R H P G Z H P W E C A X Y S B V X S A S J I
Y T R G Z E C Z V X Y S Y W R H D L R H L Z V F J S J H I Y
K H O I L F N I K C Z I I J L S K V L V J O A A Y O A I M S
Y G F G A
Codebusters 2022
- [200 points] Solve this Aristocrat, which is a quote by Marie Curie.
ZCMJBZD BZ OBPY BE MC LY PYXNYS, BM BE CZOV MC LY
AZSYNEMCCS. ZCI BE MJY MBTY MC AZSYNEMXZS TCNY, EC
MJXM IY TXV PYXN OYEE.
A B C D E F G H I J K L M N O P Q R S T U V W X Y Z
Frequency 2 8 10 1 8 2 3 2 11 5 3 3 5 3 2 5 13 8 Replacement
- [150 points] Encrypt this quote with the Affine cipher, given a=7 and b=9.
N O A M O U N T O F E X P E R I M E N T A T I O N C A N E V E R
P R O V E M E R I G H T ;^ A S I N G L E E X P E R I M E N T C A N
P R O V E M E W R O N G.
Codebusters 2022 School:__________
- [150 points] Encode this quote from Stephen Covey using a Caesar Cipher with a shift of 8.
T H E R E A R E T H R E E C O N S T A N T S I N L I F E.^.^.
C H A N G E ,^ C H O I C E ,^ A N D P R I N C I P L E S.
- [300 points] Decode this Aristocrat, a quote about hope from Anne Frank.
"G VNN JLN ZHAMP TABPKBMMF CNGIT JKAINP GIJH B
ZGMPNAINVV, G LNBA JLN NDNA BXXAHBULGIT JLKIPNA,
ZLGUL ZGMM PNVJAHF KV JHH, G UBI RNNM JLN VKRRNAGITV
HR SGMMGHIV BIP FNJ, GR G MHHE KX GIJH JLN LNBDNIV,
G JLGIE JLBJ GJ ZGMM BMM UHSN AGTLJ, JLBJ JLGV
UAKNMJF JHH ZGMM NIP, BIP JLBJ XNBUN BIP JABIYKGMGJF
ZGMM ANJKAI BTBGI.”
A B C D E F G H I J K L M N O P Q R S T U V W X Y Z
Frequency 15 19 1 2 2 5 26 14 19 26 9 16 20 27 10 5 2 6 6 10 4 1 7 Replacement
Codebusters 2022 School:__________
- [200 points] The following quote from Life of Pi needs to be encoded with the Vigenère Cipher with a keyword of "tiger".
“ T O C H O O S E D O U B T A S A P H I L O S O P H Y O F
L I F E I S A K I N T O C H O O S I N G I M M O B I L I T Y A S
A M E A N S O F T R A N S P O R T A T I O N.^ ”
- [250 points] Solve this quote by Toni Morrison, encoded with a Baconian cipher.
Codebusters 2022
- [200 points] Tiebreaker 1: Solve this Aristocrat, a quote from President Ulysses Grant.
IMO ATNOWR NW CS YRDOTZNIS N ZMYFF YFXYSZ GMOTNZM
CVZI. N GYW POIIOT ITQZI IMVZO XMV MOFHOR IV TOFNODO
IMO LFVVC VA CS RYTE MVQTZ IMYW IMVZO XMV YTO ZV
TOYRS IV OWUVS XNIM CO IMO ZQWZMNWO VA CS HTVZHOTNIS.
A B C D E F G H I J K L M N O P Q R S T U V W X Y Z
Frequency 3 6 2 1 6 2 3 16 1 15 10 21 1 3 5 8 12 1 15 7 4 9 13 Replacement
- [300 points] Tiebreaker 2: Decode this quote from Pericles, a Patristocrat containing the word "what" exactly 3 times.
LAPEV RXITP ZTFTA OUGOM URELA PEOMT UYNPZ TGOUM
ERUTH RUXHT UEMFX ELAPE OMLRZ TUOUE REATI OZTMR
SREAT NM
A B C D E F G H I J K L M N O P Q R S T U V W X Y Z
Frequency 6 10 2 2 2 2 4 7 2 7 5 8 1 11 9 1 3 1 4 Replacement
Codebusters 2022
