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wu :: forums    riddles    hard (Moderators: Eigenray, SMQ, Grimbal, william wu, Icarus, ThudnBlunder, towr) Pages: 1 ... 21 22 23 24 25  ...  27 Start new topic    Subject Started by Replies Views Last post Last nonzero digit of n! Eigenray 10 1733 Nov 7th, 2003, 2:42am by Eigenray White to Play and Win (II) ThudnBlunder 16 1142 Nov 5th, 2003, 11:36pm by THUDandBLUNDER Binary Implications and Binomial Parity william wu 2 902 Oct 30th, 2003, 11:05am by Barukh Poor Willy Jamie 15 5491 Oct 19th, 2003, 9:11am by BNC Generating Random Trees william wu 5 2636 Oct 17th, 2003, 1:04pm by fingasj Re: Transfinite Subway « Pages 1 2 » Sir Col 33 3091 Oct 16th, 2003, 5:42pm by Icarus Brick piercing TimMann 1 2593 Oct 16th, 2003, 12:20am by TimMann Perpetual Motion (Basic Chemistry) James Fingas 5 9889 Oct 8th, 2003, 1:17pm by fingasj Growing Number Sequence James Fingas 15 5351 Sep 28th, 2003, 11:59am by SWF Cutting A Box From Triangular Stock william wu 2 4315 Sep 26th, 2003, 6:50pm by SWF Collision With Row Of Spheres SWF 24 3335 Sep 25th, 2003, 10:26am by aero_guy Re: Sleeping Beauty Icarus 19 4331 Sep 23rd, 2003, 9:17am by rmsgrey Prisms (some math) « Pages 1 2 » Friberg 25 7502 Sep 17th, 2003, 1:01pm by aero_guy Littlewood's Number game Icarus 16 6200 Sep 14th, 2003, 1:42pm by Icarus Willywutang and the Number Stamp william wu 7 14678 Sep 9th, 2003, 5:36pm by admin Coins on a table Stefan Kneifel 8 9889 Sep 2nd, 2003, 1:00pm by visitor Abel's Wire Problem william wu 10 16536 Sep 1st, 2003, 1:12pm by SWF Fibonacci Number? Barukh 9 5913 Aug 31st, 2003, 11:01am by Barukh single file hat execution « Pages 1 2 » klbarrus 31 15430 Aug 28th, 2003, 8:37am by fingasj Re:SIMULTANEOUS HAT COLOR GUESSING Matt 13 9571 Aug 15th, 2003, 9:52pm by Yoda Random šExponentiation Barukh 16 4724 Aug 15th, 2003, 5:35pm by Icarus Willy's true colors James Fingas 14 4312 Aug 14th, 2003, 7:56pm by Icarus Fork in the Road III James Fingas 12 5268 Aug 8th, 2003, 7:07am by DanielVonFange Another Fork In The Road rmsgrey 3 3463 Jul 30th, 2003, 7:29pm by SWF Re: Intersecting Spheres aero_guy 19 3377 Jul 30th, 2003, 1:38pm by fingasj The first is half the fourth plus one. Robin Friberg 3 4977 Jul 29th, 2003, 12:59pm by Robin Friberg The Crazy Christmas Game Jimmy Hansen 2 8736 Jul 25th, 2003, 9:11pm by SWF The sultan and his 100 wives Thordain 6 9748 Jul 25th, 2003, 12:42am by towr 5 card trick redux tim 10 2682 Jul 16th, 2003, 1:58pm by zeb Chess Game Reconstruction elvebrilith 2 1304 Jul 15th, 2003, 12:41pm by zero Pages: 1 ... 21 22 23 24 25  ...  27 Start new topic  Normal Topic Hot Topic (More than 15 Replies) Very Hot Topic (More than 25 Replies) Locked Topic Sticky Topic Sticky Locked Topic Forum Jump: ----------------------------- riddles -----------------------------  - easy   - medium => hard   - what am i   - what happened   - microsoft   - cs   - putnam exam (pure math)   - suggestions, help, and FAQ   - general problem-solving / chatting / whatever ----------------------------- general -----------------------------  - guestbook   - truth   - complex analysis   - wanted   - psychology   - chinese

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