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Subject |
Started by |
Replies |
Views |
Last post |
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100 prisoners & a lightbulb « Pages 1
2 » |
SMQ |
26 |
43075 |
Nov 26th, 2012, 4:59pm by Paul Hammond |
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Unsolved Problems in the Hard Forum « Pages 1
2 » |
Icarus |
35 |
45199 |
Jan 28th, 2010, 11:12am by brac37 |
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POST WHAT AM I PUZZLES TO WHAT AM I FORUM |
william wu |
0 |
16755 |
Jan 30th, 2003, 12:12am by william wu |
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ANSWERS VS. PROBLEM-SOLVING PROCESSES |
william wu |
17 |
18905 |
May 10th, 2007, 8:33am by rmsgrey |
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Hard: BUTTON TRAP ROOM |
Viorel Canja |
11 |
9987 |
Dec 5th, 2024, 4:24am by rmsgrey |
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Security by obscurity in 100 bits |
ephyzy |
4 |
991 |
Nov 19th, 2024, 2:47am by ephyzy |
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power of 3 close to power of 2 |
jollytall |
6 |
258 |
Nov 13th, 2023, 10:10am by jollytall |
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Identify your favourite childhood games |
livinggod29 |
2 |
210 |
Jul 9th, 2023, 8:42am by rmsgrey |
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fractal maze |
towr |
19 |
12939 |
May 29th, 2022, 3:04pm by Grimbal |
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Magician having 100 cards |
navdeep1771 |
2 |
344 |
Jan 24th, 2022, 3:25am by rmsgrey |
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Stuck: How can you guess that? « Pages 1
2
3
4 » |
TruthlessHero |
77 |
22476 |
Apr 12th, 2019, 9:54am by rmsgrey |
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Integer series |
rmsgrey |
4 |
561 |
Oct 16th, 2019, 5:47pm by rmsgrey |
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The Dowry Problem (Part 2) |
navdeep1771 |
10 |
1002 |
Jul 8th, 2018, 6:57am by rmsgrey |
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Permutation Combination 2 |
navdeep1771 |
7 |
559 |
Jun 23rd, 2018, 3:46am by Grimbal |
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Re: Probability Problem 1 |
navdeep1771 |
3 |
757 |
Jun 18th, 2018, 8:59pm by navdeep1771 |
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Tricky Sequence |
navdeep1771 |
7 |
681 |
May 17th, 2018, 11:45am by navdeep1771 |
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Arrive on time |
Altamira_64 |
4 |
1350 |
May 16th, 2018, 10:54am by alien2 |
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Trigonometry Problem |
navdeep1771 |
6 |
999 |
Jan 12th, 2018, 6:29am by Grimbal |
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k-card Magic trick redux |
Hippo |
5 |
1024 |
Jul 26th, 2017, 4:32am by Hippo |
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Solution to CRIMINAL CUPBEARERS « Pages 1
2 » |
dayak |
39 |
27299 |
Jul 2nd, 2017, 7:36am by Hippo |
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Guess the coins |
Altamira_64 |
8 |
1371 |
Mar 30th, 2017, 3:22pm by impartial_james |
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Knights - knaves variation |
Altamira_64 |
11 |
1009 |
Dec 9th, 2016, 2:33pm by dudiobugtron |
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8 treasure chests, can change 1 |
Destiny |
17 |
1498 |
Sep 2nd, 2016, 8:37am by rloginunix |
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3 Indistinguishable Dice |
lorentztrans |
5 |
1576 |
Jun 27th, 2016, 6:03am by teekyman |
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8 apples |
Altamira_64 |
8 |
2113 |
Mar 13th, 2016, 1:26am by Altamira_64 |
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Rubik's Cube « Pages 1
2 » |
william wu |
45 |
31139 |
Mar 11th, 2016, 10:06am by Hippo |
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Broken bike combination lock problem |
Ace_T |
16 |
11106 |
Mar 11th, 2016, 9:29am by Hippo |
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3D Chessboard Full Control « Pages 1
2 » |
Barukh |
47 |
14641 |
Mar 9th, 2016, 10:33am by Hippo |
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In an apartment complex in New York... |
oceanvibe |
6 |
1851 |
Dec 14th, 2015, 7:44am by rmsgrey |
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You have been given the task of transporting 3,000 |
oceanvibe |
2 |
931 |
Dec 10th, 2015, 7:22am by oceanvibe |