The Garden of the Sphinx: 150 Challenging and Instructive Puzzles

Contents......Page __sk_0005.djvu
Author's Note......Page __sk_0011.djvu
Preface......Page __sk_0013.djvu
Problems......Page __sk_0015.djvu
2. Pure Reason......Page __sk_0017.djvu
4. The Exchange of Knights......Page __sk_0018.djvu
5. Squaring the Maltese Cross......Page __sk_0019.djvu
6. Reconstructing Octagons......Page __sk_0020.djvu
7. Basic Multiplication......Page __sk_0021.djvu
8. A World of Fours......Page __sk_0022.djvu
9. Circular Uncertainties......Page __sk_0023.djvu
12. Meetings on the Dot......Page __sk_0024.djvu
15. Heterogeneous Squares......Page __sk_0025.djvu
17. Strategic Dates......Page __sk_0026.djvu
19. Two-Handed Confrontations......Page __sk_0027.djvu
20. The Best Bridge......Page __sk_0028.djvu
22. Thrift in Mirrors......Page __sk_0029.djvu
24. A False Proof......Page __sk_0030.djvu
26. Truth and Brotherhood......Page __sk_0031.djvu
27. Doubts About Euclid......Page __sk_0032.djvu
28. The Sum of the Angles......Page __sk_0033.djvu
29. Jet Psychology......Page __sk_0034.djvu
31. Revealing Ambiguities......Page __sk_0035.djvu
32. An Illegitimate Equilateral Triangle......Page __sk_0036.djvu
34. Dismembering One Thousand......Page __sk_0037.djvu
36. The Queen Takes a Walk......Page __sk_0038.djvu
38. If and Only If......Page __sk_0039.djvu
40. Less Water in the Desert......Page __sk_0040.djvu
42. A Difficult Juncture......Page __sk_0041.djvu
44. Father, Son, and Horse......Page __sk_0042.djvu
46. Predictable Pain......Page __sk_0043.djvu
48. Knight Moves......Page __sk_0044.djvu
50. IQ Logic......Page __sk_0045.djvu
51. Magic Cubes......Page __sk_0046.djvu
54. Five Folds......Page __sk_0047.djvu
56. A Cube of Bricks......Page __sk_0048.djvu
58. Other People's Husbands......Page __sk_0049.djvu
60. Trick Squares......Page __sk_0050.djvu
62. An Adequate Supply of Digits......Page __sk_0051.djvu
63. Pawn Parity......Page __sk_0052.djvu
65. Squaring a Star......Page __sk_0053.djvu
66. Matchmaking......Page __sk_0054.djvu
68. Constructive Folds......Page __sk_0055.djvu
71. Newton's Steers......Page __sk_0056.djvu
72. Sixteen Equals Four Times Fifteen......Page __sk_0057.djvu
73. Truncated Cubes......Page __sk_0058.djvu
75. Trickery and Magic......Page __sk_0059.djvu
77. Christmas Dinner......Page __sk_0060.djvu
79. What Times Are They?......Page __sk_0061.djvu
81. Kings, Queens, and Knaves......Page __sk_0062.djvu
82. Folding, Folding......Page __sk_0063.djvu
84. A False Unknown......Page __sk_0064.djvu
85. Practical Trisection......Page __sk_0065.djvu
87. A Multicolored Chessboard......Page __sk_0066.djvu
89. What's It Good For?......Page __sk_0067.djvu
91. A Cross and a Square......Page __sk_0068.djvu
93. Back to Trisection......Page __sk_0069.djvu
96. To Have or Not to Have......Page __sk_0070.djvu
98. Integral Triangles......Page __sk_0071.djvu
101. Lining Up Blacks and Whites......Page __sk_0072.djvu
103. Trisection in the Enlightenment......Page __sk_0073.djvu
105. Pi in an Unfamiliar Context......Page __sk_0074.djvu
107. An Accidental Ellipse......Page __sk_0075.djvu
109. Points and Lines......Page __sk_0076.djvu
111. The Missing Token......Page __sk_0077.djvu
113. An Uneasy Cryptogram......Page __sk_0078.djvu
115. The Triangulation of the Triangle......Page __sk_0079.djvu
118. A Prize Hamster......Page __sk_0080.djvu
120. Breaking Up a Year......Page __sk_0081.djvu
121. Protagoras at the Bar......Page __sk_0082.djvu
122. Squaring Polygons......Page __sk_0083.djvu
124. A Band of Five Squares Creates Another Square......Page __sk_0084.djvu
126. A Line to Follow......Page __sk_0085.djvu
128. Unlisted Numbers......Page __sk_0086.djvu
131. Ten Digits for One......Page __sk_0087.djvu
133. Raindrops Are Falling .........Page __sk_0088.djvu
135. Möbius and His Better Half......Page __sk_0089.djvu
137. Something New About Nines......Page __sk_0090.djvu
138. The Trisection of Pappus......Page __sk_0091.djvu
140. Tails I Win......Page __sk_0092.djvu
143. A Square for a Compass......Page __sk_0093.djvu
145. Words, Numbers, and Sentences......Page __sk_0094.djvu
148. Superior Antimagic......Page __sk_0095.djvu
150. No Holds Barred......Page __sk_0096.djvu
Solutions......Page __sk_0097.djvu