CHALLENGE 1502.1

(NEW MESSAGE TO A.C.A. FROM 1799)

XXYXXYXYXYYXYXXXY

YXYYXYXXXXYXXYXYY

XYYXYXYXXYXYXXYXY

XYYYXYYXXXXYXXXYY

YYXYYYYYXXYXXXXYY

YXXYYYYXXYYXXYXXX

XYXXXYYYXXXXXYXYX

YYYYXYYXYXYYYYXYX

XYXXYXXXYXIXYXXXX

YXYXYXYXXXXYYYYXX

YYXXXYXXYXXXXYXYX

YYXYYYYYXXYXXXYYX

8S9S9S9S98S988S9SS88

SS88SSSS888S688SSS99

8886S88S6S88888S8S868

S68

CHALLENGE 1493.1

(NEW MESSAGE TO A.C.A. FROM 1799)

11100001111001001001110

01001011100100100100010

100111111001001101000110

001001100010010000010010

0100110000011111001001001

0001001001101000000111001

00111001011111101001101111

00010111100111010010001010

01001100110100111001000111

00111010010001110111100100

11011110001001000100011000

10001001001000100101000110

000110100110110000111000111

010011011000100100100011111

00100011000101799

CHALLENGE 1475.1A

(NEW MESSAGE TO A.C.A. FROM 1799)

5341292153425431913452954123

1452394351225134512349215349

3512415234923451543219234514

5123134522345195432191523491

5235432192345192451395432143

2515412391523495432192543123

4515432151234152349412359215

34913452152349

CHALLENGE 1466.1

(NEW MESSAGE TO ALICE)

ΠΙΕΕΕΠΠΠΠΠΙΕΕΕΙΠΠΠΙ

ΠΠΙΕΕΕΠΠΙ ΙΕΕΕΠΠΠΠΠΠΠΙΙΕΕΕΠΠΠ

ΕΕΕΠΠΠΠΠΙ ΣΣΣΠΠΠΙΕΕΕΠΠΠ

ΜΕΕΕΠΠΠΠΠΙΕΕΕΙΕΕΕΠΠΠ

ΠΠΙΠΠΠΠΙΠΠΠΕΕΙΠΙΠΠΠΠΙ

ΠΙΠΠΠΠΕΕΠΠΙΣΣΣΠΠΠΙΠΙΠΠΠΠ

ΠΠΙΠΠΠΠΕΕΠΠΙ

ΠΠΕΕΕΠΕΕΕΠΠΠΕΕΕΠΜ

ΠΠΙΠΠΕΕΕΠΠΠΠΠΙΙΕΕΕΠΠΠΠΠΠΕΕΙ

Π-ΠΠΠΠΙ-ΠΙ-ΠΠΠΠΕΕΠΠΙ-ΕΕΕΠΠΠ-Μ