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wu :: forums    riddles    hard (Moderators: Icarus, towr, Eigenray, william wu, Grimbal, SMQ, ThudnBlunder) Pages: 1 ... 20 21 22 23 24  ...  27 Start new topic    Subject Started by Replies Views Last post 1=0?  (Math skills needed) « Pages 1 2 » godskook 29 2020 Apr 13th, 2004, 6:26am by towr More Card Tricks? Chechmanek 1 544 Apr 9th, 2004, 11:28pm by Barukh 24 problem slim 1 753 Apr 8th, 2004, 1:27pm by Nigel_Parsons 12 balls variation WRX 13 1996 Apr 4th, 2004, 7:45am by Nigel Parsons Unsolvable subsets Earendil 5 666 Mar 23rd, 2004, 12:38am by Barukh Denesting Nested Radicals Barukh 14 3271 Mar 21st, 2004, 6:35am by Barukh Path to the Castle Vernon Castle Tyler III 7 638 Mar 16th, 2004, 5:20pm by Speaker Eliptic Curve! Earendil 3 581 Mar 13th, 2004, 9:47am by Sir_Col Re: Smart question! kellys 3 675 Mar 11th, 2004, 12:52am by BNC Steiner Ellipses Icarus 13 2397 Mar 10th, 2004, 1:03pm by Earendil Symmetric Expressions Barukh 9 1376 Mar 9th, 2004, 1:59pm by NickH Group Jigsaw Puzzling (torturing little kids) william wu 1 540 Feb 29th, 2004, 9:19am by admin Sum of possible combination Viperdude619 1 469 Feb 14th, 2004, 7:42pm by SWF What Movie Is This? william wu 8 985 Feb 10th, 2004, 8:12pm by Icarus tennis competition gert1 11 967 Feb 2nd, 2004, 12:45am by gert1 Cooperative Checkers James Fingas 7 2598 Jan 31st, 2004, 8:39am by THUDandBLUNDER Cork, Burlap Bag, and Irregular Bottle « Pages 1 2 » william wu 43 8737 Jan 22nd, 2004, 8:10am by rmsgrey Is Pi different? Benoit_Mandelbrot 12 1649 Jan 20th, 2004, 6:06am by Benoit_Mandelbrot What's this sequence? Quetzycoatl 10 4278 Jan 6th, 2004, 8:01am by Quetzycoatl research problem involving convergence Amir Michail 3 1099 Dec 22nd, 2003, 12:17pm by fingasj SIMULTANEOUS HAT COLOR GUESSING AlexH 8 4968 Dec 16th, 2003, 8:58am by rmsgrey Covering a Table with Quarters & other problems pjay 17 1466 Dec 12th, 2003, 6:31pm by Icarus Perfect Square ThudnBlunder 8 1774 Dec 11th, 2003, 7:45pm by THUDandBLUNDER Infinite Grid of Sticks william wu 7 1191 Dec 11th, 2003, 5:11pm by SWF Convex Set Projection william wu 1 5414 Dec 10th, 2003, 6:44am by fingasj Maximum Coverage by Discs « Pages 1 2 » Icarus 26 2807 Dec 8th, 2003, 3:20pm by towr Triangles In Random Graphs william wu 9 7842 Dec 2nd, 2003, 10:01am by pjay Typewriter Gibberish william wu 11 4883 Nov 21st, 2003, 4:59am by rmsgrey Last Man Standing « Pages 1 2 » ThudnBlunder 27 6245 Nov 20th, 2003, 8:55am by N/A Temperature Antipodes william wu 3 3450 Nov 13th, 2003, 8:29pm by Icarus Pages: 1 ... 20 21 22 23 24  ...  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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