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> Logic (1)> Probability> Shapes> General
> Numbers (2)> Games> Paradoxes> Riddles
> Just Math (3)> Science> Algorithms
The following statements are about Mr. Buford’s children:

A. Tracy is blond.
B. Joyce is over six feet tall.
C. Sabrina is in her 27th year.
D. This statement is true if A, or B, or both A and B are true; otherwise it is false.
E. This statement is true if B is false and vice versa.
F. This statement is false if and only if both C and E are true.
G. Just one of statements D, E, and F is true.

If I tell you that G is true, determine which of the statements A through F are true and which are false.

(No Solution Yet, 3 Comments) Submitted on 2014-04-23 by K Sengupta   
Difficulty: 3 of 5 Bonus: What did Black play? (in Games) Rating: 4.50
I recently saw a chess match being played. After a few moves, Black was to move, and the board was exactly as at the beginning, except that the white king rook (at h1) was missing. How did Black capture it -- specifically, what was the actual move?
(Solution Posted, 6 Comments) Submitted on 2004-10-18 by e.g.   
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Posted on 2014-04-16 by Math Man (No Solution Yet, 5 Comments)
Difficulty: 3 of 5Mod 3 alphametics (in Just Math)
Posted on 2014-04-15 by Ady TZIDON (No Solution Yet, 2 Comments)

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