Toggler and Triggler (in Games) Rating: 3.86
Posted on 2004-03-12 by levik (No Solution Yet, 10 Comments)
Posted on 2004-03-12 by levik (No Solution Yet, 10 Comments)
Marbles Bonanza (in Paradoxes) Rating: 3.62
Posted on 2003-09-08 by levik (Solution Posted, 87 Comments)
Posted on 2003-09-08 by levik (Solution Posted, 87 Comments)
Intersecting lines (in Algorithms) Rating: 4.00
Posted on 2003-07-01 by levik (Solution Posted, 20 Comments)
Posted on 2003-07-01 by levik (Solution Posted, 20 Comments)
More randomness! (in Algorithms) Rating: 4.43
Posted on 2003-06-30 by levik (Solution Posted, 16 Comments)
Posted on 2003-06-30 by levik (Solution Posted, 16 Comments)
An arrangement of 15 (in Numbers) Rating: 4.29
Posted on 2003-01-15 by levik (Solution Posted, 13 Comments)
Posted on 2003-01-15 by levik (Solution Posted, 13 Comments)
Adjacent numbers (in Numbers) Rating: 3.11
Posted on 2003-01-09 by levik (Solution Posted, 10 Comments)
Posted on 2003-01-09 by levik (Solution Posted, 10 Comments)
Ants on a triangle (in Probability) Rating: 2.80
Posted on 2002-11-20 by levik (Solution Posted, 13 Comments)
Posted on 2002-11-20 by levik (Solution Posted, 13 Comments)
Corner of a die (in General) Rating: 3.47
Posted on 2002-10-26 by levik (Solution Posted, 10 Comments)
Posted on 2002-10-26 by levik (Solution Posted, 10 Comments)
Red ball... Red ball (in Probability) Rating: 3.15
Posted on 2002-10-17 by levik (Solution Posted, 17 Comments)
Posted on 2002-10-17 by levik (Solution Posted, 17 Comments)
Tricky Pearls (in Weights and Scales) Rating: 3.78
Posted on 2002-10-08 by levik (Solution Posted, 15 Comments)
Posted on 2002-10-08 by levik (Solution Posted, 15 Comments)
Men of Smallvile (in Numbers) Rating: 3.00
Posted on 2002-09-12 by levik (Solution Posted, 5 Comments)
Posted on 2002-09-12 by levik (Solution Posted, 5 Comments)
Coins on the round table (in Games) Rating: 3.77
Posted on 2002-09-08 by levik (Solution Posted, 13 Comments)
Posted on 2002-09-08 by levik (Solution Posted, 13 Comments)
Climbing the stairs (in Numbers) Rating: 3.33
Posted on 2002-09-05 by levik (Solution Posted, 24 Comments)
Posted on 2002-09-05 by levik (Solution Posted, 24 Comments)
Feet make you smarter? (in Riddles) Rating: 2.77
Posted on 2002-09-03 by levik (Solution Posted, 15 Comments)
Posted on 2002-09-03 by levik (Solution Posted, 15 Comments)
Smart prisoners always get a break (in Logic) Rating: 4.36
Posted on 2002-08-27 by levik (Solution Posted, 28 Comments)
Posted on 2002-08-27 by levik (Solution Posted, 28 Comments)
Three for all (in Probability) Rating: 4.00
Posted on 2002-08-27 by levik (Solution Posted, 17 Comments)
Posted on 2002-08-27 by levik (Solution Posted, 17 Comments)
A Pack of Prudent Pirates (in Logic) Rating: 4.38
Posted on 2002-08-19 by levik (Solution Posted, 17 Comments)
Posted on 2002-08-19 by levik (Solution Posted, 17 Comments)
Zero to a Hundred in 1996 (in Numbers) Rating: 3.40
Posted on 2002-08-15 by levik (Solution Posted, 27 Comments)
Posted on 2002-08-15 by levik (Solution Posted, 27 Comments)
A pyramid of balls (in General) Rating: 2.83
Posted on 2002-08-02 by levik (Solution Posted, 6 Comments)
Posted on 2002-08-02 by levik (Solution Posted, 6 Comments)
Self-Descriptor (in Numbers) Rating: 3.88
Posted on 2002-07-10 by levik (Solution Posted, 14 Comments)
Posted on 2002-07-10 by levik (Solution Posted, 14 Comments)
A grid of people (in General) Rating: 3.58
Posted on 2002-07-09 by levik (Solution Posted, 16 Comments)
Posted on 2002-07-09 by levik (Solution Posted, 16 Comments)
Mutually friendly (in Logic) Rating: 3.00
Posted on 2002-07-01 by levik (Solution Posted, 11 Comments)
Posted on 2002-07-01 by levik (Solution Posted, 11 Comments)
A four-way division (in Weights and Scales) Rating: 3.75
Posted on 2002-06-12 by levik (Solution Posted, 13 Comments)
Posted on 2002-06-12 by levik (Solution Posted, 13 Comments)
The three friends (in Liars and Knights) Rating: 2.74
Posted on 2002-06-11 by levik (Solution Posted, 13 Comments)
Posted on 2002-06-11 by levik (Solution Posted, 13 Comments)
Five doors (in Probability) Rating: 3.80
Posted on 2002-06-05 by levik (Solution Posted, 11 Comments)
Posted on 2002-06-05 by levik (Solution Posted, 11 Comments)
The guilty demon (in Paradoxes) Rating: 4.19
Posted on 2002-05-29 by levik (Solution Posted, 39 Comments)
Posted on 2002-05-29 by levik (Solution Posted, 39 Comments)
The general's journey (in Logic) Rating: 4.40
Posted on 2002-05-29 by levik (Solution Posted, 16 Comments)
Posted on 2002-05-29 by levik (Solution Posted, 16 Comments)
A birthday gamble (in Probability) Rating: 3.50
Posted on 2002-05-28 by levik (Solution Posted, 8 Comments)
Posted on 2002-05-28 by levik (Solution Posted, 8 Comments)
Light at the end of the tunnel (in Logic) Rating: 3.50
Posted on 2002-05-26 by levik (Solution Posted, 12 Comments)
Posted on 2002-05-26 by levik (Solution Posted, 12 Comments)
A blue taxi (in Probability) Rating: 3.79
Posted on 2002-05-24 by levik (Solution Posted, 17 Comments)
Posted on 2002-05-24 by levik (Solution Posted, 17 Comments)
The hands of a clock (in General) Rating: 3.36
Posted on 2002-05-23 by levik (Solution Posted, 15 Comments)
Posted on 2002-05-23 by levik (Solution Posted, 15 Comments)
Pearls (in Weights and Scales) Rating: 2.71
Posted on 2002-05-23 by levik (Solution Posted, 9 Comments)
Posted on 2002-05-23 by levik (Solution Posted, 9 Comments)
Fill in the blank (in Sequences) Rating: 3.33
Posted on 2002-05-20 by levik (Solution Posted, 3 Comments)
Posted on 2002-05-20 by levik (Solution Posted, 3 Comments)
Who has the key? (in Liars and Knights) Rating: 2.94
Posted on 2002-05-17 by levik (Solution Posted, 19 Comments)
Posted on 2002-05-17 by levik (Solution Posted, 19 Comments)
From A to B (in Just Math) Rating: 3.87
Posted on 2002-05-15 by levik (Solution Posted, 14 Comments)
Posted on 2002-05-15 by levik (Solution Posted, 14 Comments)
The (in)famous Barber (in Paradoxes) Rating: 3.45
Posted on 2002-05-14 by levik (Solution Posted, 36 Comments)
Posted on 2002-05-14 by levik (Solution Posted, 36 Comments)
Another trial (in Liars and Knights) Rating: 3.20
Posted on 2002-05-08 by levik (Solution Posted, 7 Comments)
Posted on 2002-05-08 by levik (Solution Posted, 7 Comments)
What's the area? (in Shapes) Rating: 3.73
Posted on 2002-05-08 by levik (Solution Posted, 16 Comments)
Posted on 2002-05-08 by levik (Solution Posted, 16 Comments)
10 equal sacks (in Weights and Scales) Rating: 2.86
Posted on 2002-05-08 by levik (Solution Posted, 7 Comments)
Posted on 2002-05-08 by levik (Solution Posted, 7 Comments)
The three sages (in Logic) Rating: 3.55
Posted on 2002-05-05 by levik (Solution Posted, 12 Comments)
Posted on 2002-05-05 by levik (Solution Posted, 12 Comments)
Population control (in Probability) Rating: 3.57
Posted on 2002-05-05 by levik (Solution Posted, 14 Comments)
Posted on 2002-05-05 by levik (Solution Posted, 14 Comments)
A chain in payment (in General) Rating: 3.00
Posted on 2002-05-04 by levik (Solution Posted, 9 Comments)
Posted on 2002-05-04 by levik (Solution Posted, 9 Comments)
Trading cards (in Probability) Rating: 4.18
Posted on 2002-05-03 by levik (Solution Posted, 39 Comments)
Posted on 2002-05-03 by levik (Solution Posted, 39 Comments)
A Queen's decree (in Logic) Rating: 4.29
Posted on 2002-05-03 by levik (Solution Posted, 4 Comments)
Posted on 2002-05-03 by levik (Solution Posted, 4 Comments)
A trial (in Liars and Knights) Rating: 2.58
Posted on 2002-05-02 by levik (Solution Posted, 9 Comments)
Posted on 2002-05-02 by levik (Solution Posted, 9 Comments)
Opening doors (in General) Rating: 3.50
Posted on 2002-05-01 by levik (Solution Posted, 12 Comments)
Posted on 2002-05-01 by levik (Solution Posted, 12 Comments)
A scratched chessboard (in Shapes) Rating: 3.10
Posted on 2002-04-30 by levik (Solution Posted, 25 Comments)
Posted on 2002-04-30 by levik (Solution Posted, 25 Comments)
An extra square (in Shapes) Rating: 4.08
Posted on 2002-04-30 by levik (Solution Posted, 15 Comments)
Posted on 2002-04-30 by levik (Solution Posted, 15 Comments)
Where's the Bee facing? (in Paradoxes) Rating: 4.00
Posted on 2002-04-27 by levik (Solution Posted, 14 Comments)
Posted on 2002-04-27 by levik (Solution Posted, 14 Comments)
A Banquet (in Liars and Knights) Rating: 3.93
Posted on 2002-04-27 by levik (Solution Posted, 4 Comments)
Posted on 2002-04-27 by levik (Solution Posted, 4 Comments)
Incorrect information. (in Logic) Rating: 3.64
Posted on 2002-04-27 by levik (Solution Posted, 12 Comments)
Posted on 2002-04-27 by levik (Solution Posted, 12 Comments)
Erasing digits (in Numbers) Rating: 2.91
Posted on 2002-04-27 by levik (Solution Posted, 10 Comments)
Posted on 2002-04-27 by levik (Solution Posted, 10 Comments)
A surprise exam (in Paradoxes) Rating: 3.37
Posted on 2002-04-26 by levik (Solution Posted, 39 Comments)
Posted on 2002-04-26 by levik (Solution Posted, 39 Comments)
Mr and Mrs Brown (in Logic) Rating: 2.86
Posted on 2002-04-26 by levik (Solution Posted, 9 Comments)
Posted on 2002-04-26 by levik (Solution Posted, 9 Comments)
Getting to the Knights' city (in Liars and Knights) Rating: 3.44
Posted on 2002-04-26 by levik (Solution Posted, 18 Comments)
Posted on 2002-04-26 by levik (Solution Posted, 18 Comments)
Escaping the dungeon (in Liars and Knights) Rating: 3.00
Posted on 2002-04-26 by levik (Solution Posted, 20 Comments)
Posted on 2002-04-26 by levik (Solution Posted, 20 Comments)
An inconsistent climber (in General) Rating: 3.30
Posted on 2002-04-25 by levik (Solution Posted, 10 Comments)
Posted on 2002-04-25 by levik (Solution Posted, 10 Comments)
Bob and his brother, revisited (in Logic) Rating: 3.18
Posted on 2002-04-24 by levik (Solution Posted, 6 Comments)
Posted on 2002-04-24 by levik (Solution Posted, 6 Comments)
Division by three (in Numbers) Rating: 1.83
Posted on 2002-04-24 by levik (Solution Posted, 21 Comments)
Posted on 2002-04-24 by levik (Solution Posted, 21 Comments)
A clock tower (in General) Rating: 2.40
Posted on 2002-04-24 by levik (Solution Posted, 13 Comments)
Posted on 2002-04-24 by levik (Solution Posted, 13 Comments)
A fly on a cube (in Shapes) Rating: 3.36
Posted on 2002-04-23 by levik (Solution Posted, 15 Comments)
Posted on 2002-04-23 by levik (Solution Posted, 15 Comments)
Bob and his brother (in Logic) Rating: 3.59
Posted on 2002-04-22 by levik (Solution Posted, 23 Comments)
Posted on 2002-04-22 by levik (Solution Posted, 23 Comments)
How many pages? (in Numbers) Rating: 3.00
Posted on 2002-04-21 by levik (Solution Posted, 9 Comments)
Posted on 2002-04-21 by levik (Solution Posted, 9 Comments)
A Bookworm’s meal (in General) Rating: 3.29
Posted on 2002-04-19 by levik (Solution Posted, 12 Comments)
Posted on 2002-04-19 by levik (Solution Posted, 12 Comments)
Move the 2 - double the number (in Numbers) Rating: 4.11
Posted on 2002-04-19 by levik (Solution Posted, 10 Comments)
Posted on 2002-04-19 by levik (Solution Posted, 10 Comments)
Changing Chameleons (in Numbers) Rating: 4.13
Posted on 2002-04-19 by levik (Solution Posted, 8 Comments)
Posted on 2002-04-19 by levik (Solution Posted, 8 Comments)
A crazy passenger (in Probability) Rating: 4.56
Posted on 2002-04-18 by levik (Solution Posted, 16 Comments)
Posted on 2002-04-18 by levik (Solution Posted, 16 Comments)
Four people on a bridge. (in General) Rating: 3.69
Posted on 2002-04-14 by levik (Solution Posted, 15 Comments)
Posted on 2002-04-14 by levik (Solution Posted, 15 Comments)
Pick a box! (in Probability) Rating: 4.29
Posted on 2002-03-28 by levik (Solution Posted, 42 Comments)
Posted on 2002-03-28 by levik (Solution Posted, 42 Comments)
Make four equilateral triangles (in Shapes) Rating: 2.60
Posted on 2002-03-28 by levik (Solution Posted, 10 Comments)
Posted on 2002-03-28 by levik (Solution Posted, 10 Comments)