CHALLENGE 1862.1

Α:ΕΗΕΟ.ΗΑ ΗΥΗ.ΕΙ.Α

Α.ΕΑΕ.ΕΥΟ:Υ ΑΗΑ:ΙΑΙΑ.ΕΩΟ.ΗΑ

Α.ΕΑΕ.ΕΥΟ:Υ ΑΩΑ:Ι ΕΑΑ.ΑΗΟ.ΗΑ

Ε.ΑΩΑ.ΕΙΑ.ΕΙ ΗΑΥ.ΕΗΗΟΩ.ΕΙΙ:Α

ΕΗΟ:ΥΕΙ.Ι ΑΩΑ:ΥΕΑΩ.ΕΗΕ.ΕΙ.Ο

ΑΟΗ.ΗΕΑ.Ε:Ι Ε.ΕΗΕ.ΕΙ.Α ΑΩΑ:Ι

Ε.ΑΗ.Ω ΗΕΟ Ι.ΑΙΙ:Ο Ε.ΕΥΙ.ΗΑΕ:Ι

ΗΑ Α.ΕΑΗ.ΑΥΕ.Ι:Α

CHALLENGE 2375.1

111 1111111111 11111 111111111

1111 111 111 1111 111111 1111111 1

(the key:CDCMXMVDV) 

CHALLENGE 1943.4a

(LETTER FROM BOB TO ALICE)

.Ρ=Σ/Ν--Ν-Ξ.Ρ/Τ.ΞΦ-Ψ/

.Λ=Ν.Ν.ΘΨΝ-.+Φ=+ΤΦ=+Τ

.ΞΚΣ/Ρ=+Τ.Ρ=Σ/ΡΣ.ΔΝ.ΦχΛ.

Ζ-ΞΝ=+Χ-Σ=ΞΦ.χΛ.Μ.Λ.Κ=Μ=+

-Δ/Κ.Φ=+Τ.Χ:Τ/ΤΛ-ΧΦ/Ν.Ψ

Λ.ΨΞ.Χ+Δ/=Ν/Τ=Μ=Φ=.Ξ.Γ.Μ/

\\.Γ.Π/Π=Λ+Τ:Ν.Γ.Π:

CHALLENGE 1430.1

(...AND THIS IS IMPOSSIBLE TO DECIPHERING WITHOUT THE KEY.WHICH IS UNKNOWN TO YOU ALL.)                           33-18-4-20-23-4-53-20-35-31

74 6-28 1-30-15 61-46-5-7

4-11-16-5 2-5-61-1-5 61-4-7

1-21-4 61-63-4-8-5-7-4

68-4-25-79 67-43 60-67-79-67-68-60-17

61-63-5 7-60-5 4-48-4 93-60-7

4-7-4-1-83-8-7-27-60-63-0

1-4-6-79 63-90