• Topics
  • puzzles good for your brain

    Last post by pnm   » Mon Sep 22, 2025 6:55 pm

    by pnm   » Mon Sep 22, 2025 6:55 pm

    0

    Replies

    112

    Views

    by pnm   Mon Sep 22, 2025 6:55 pm
  • Ukrainian Chess Championship

    Last post by clm   » Fri Dec 20, 2024 12:40 pm

    by pnm   » Thu Dec 19, 2024 9:24 pm

    1

    Replies

    22637

    Views

    by clm   Fri Dec 20, 2024 12:40 pm
  • Other math problem

    Last post by crabmouse   » Sat Dec 16, 2023 6:58 am

    by guidocram   » Thu May 04, 2023 3:41 pm

    2

    Replies

    36740

    Views

    by crabmouse   Sat Dec 16, 2023 6:58 am
  • testing AI image generators

    Last post by veryevilking   » Sun Apr 30, 2023 11:07 am

    by pnm   » Wed Aug 24, 2022 3:07 pm

    3

    Replies

    22397

    Views

    by veryevilking   Sun Apr 30, 2023 11:07 am
  • amazing historic discovery!

    Last post by eclipsegirl   » Sat Nov 12, 2022 12:18 am

    by pnm   » Wed Nov 09, 2022 5:10 pm

    1

    Replies

    16850

    Views

    by eclipsegirl   Sat Nov 12, 2022 12:18 am
  • forgot liked stocks

    Last post by beaker   » Mon Sep 19, 2022 1:58 am

    by beaker   » Wed Aug 10, 2022 3:16 am

    • 1
    • 2

    14

    Replies

    37947

    Views

    by beaker   Mon Sep 19, 2022 1:58 am
  • interesting puzzle

    Last post by pnm   » Wed Sep 14, 2022 11:54 am

    by pnm   » Wed Sep 14, 2022 11:54 am

    0

    Replies

    32973

    Views

    by pnm   Wed Sep 14, 2022 11:54 am
  • another well know number puzzle type

    Last post by pnm   » Thu Aug 18, 2022 10:44 am

    by pnm   » Thu Aug 11, 2022 4:57 pm

    3

    Replies

    20793

    Views

    by pnm   Thu Aug 18, 2022 10:44 am
  • not a number puzzle

    Last post by pnm   » Wed Jul 27, 2022 9:00 pm

    by pnm   » Wed Jul 27, 2022 9:00 pm

    0

    Replies

    33402

    Views

    by pnm   Wed Jul 27, 2022 9:00 pm
  • classic number riddle

    Last post by pnm   » Wed Jun 08, 2022 10:45 pm

    by pnm   » Wed Jun 08, 2022 5:09 pm

    3

    Replies

    22872

    Views

    by pnm   Wed Jun 08, 2022 10:45 pm
  • Travels

    Last post by starling   » Sun Jun 05, 2022 3:20 am

    by frederick   » Wed Jun 01, 2022 9:54 pm

    • 1
    • 2

    13

    Replies

    46862

    Views

    by starling   Sun Jun 05, 2022 3:20 am
  • 200,000 and 5

    Last post by bram   » Thu Apr 21, 2022 3:07 pm

    by beaker   » Sat Sep 09, 2017 1:04 am

    • 1
    • 2
    • 3

    25

    Replies

    98824

    Views

    by bram   Thu Apr 21, 2022 3:07 pm
  • bonus 3 to -2

    Last post by eclipsegirl   » Thu Dec 30, 2021 8:06 am

    by beaker   » Tue Jun 04, 2019 9:45 am

    • 1
    • 2
    • 3

    22

    Replies

    84180

    Views

    by eclipsegirl   Thu Dec 30, 2021 8:06 am
  • Sudoku Styles All-In-One

    Last post by sudokuatk   » Fri Aug 06, 2021 7:14 pm

    by sudokuatk   » Fri Aug 06, 2021 7:14 pm

    0

    Replies

    18246

    Views

    by sudokuatk   Fri Aug 06, 2021 7:14 pm
  • bonus 0-4 twin

    Last post by beaker   » Fri Jul 16, 2021 1:55 am

    by beaker   » Mon Jul 12, 2021 3:15 am

    5

    Replies

    17913

    Views

    by beaker   Fri Jul 16, 2021 1:55 am
  • The gold/yellow "7" in the rankings data

    Last post by pnm   » Mon Jan 11, 2021 10:36 am

    by beaker   » Mon Jan 11, 2021 2:37 am

    5

    Replies

    23427

    Views

    by pnm   Mon Jan 11, 2021 10:36 am
  • maths learning site

    Last post by pnm   » Tue Apr 21, 2020 12:37 pm

    by pnm   » Mon Apr 20, 2020 6:20 pm

    5

    Replies

    25028

    Views

    by pnm   Tue Apr 21, 2020 12:37 pm
  • happy new year

    Last post by paulv66   » Thu Jan 02, 2020 2:51 pm

    by beaker   » Wed Jan 01, 2020 2:11 am

    1

    Replies

    25147

    Views

    by paulv66   Thu Jan 02, 2020 2:51 pm
  • -3 t0 3

    Last post by paulv66   » Mon Dec 02, 2019 1:37 am

    by beaker   » Thu Mar 14, 2019 8:42 am

    6

    Replies

    32555

    Views

    by paulv66   Mon Dec 02, 2019 1:37 am
  • contract for the web

    Last post by pnm   » Mon Nov 25, 2019 9:04 pm

    by pnm   » Mon Nov 25, 2019 10:20 am

    2

    Replies

    22884

    Views

    by pnm   Mon Nov 25, 2019 9:04 pm
  • higher calling

    Last post by skeeter84   » Fri Nov 08, 2019 1:06 am

    by panther   » Thu Nov 07, 2019 6:42 pm

    3

    Replies

    16850

    Views

    by skeeter84   Fri Nov 08, 2019 1:06 am
  • 3 cell MOD

    Last post by allan   » Wed Nov 06, 2019 9:45 pm

    by allan   » Wed Nov 06, 2019 12:04 am

    2

    Replies

    12396

    Views

    by allan   Wed Nov 06, 2019 9:45 pm
  • 2018

    Last post by ineedaname   » Fri Oct 12, 2018 10:09 am

    by beaker   » Fri Oct 12, 2018 8:33 am

    3

    Replies

    14704

    Views

    by ineedaname   Fri Oct 12, 2018 10:09 am
  • "mind sport olympiad"

    Last post by pnm   » Thu Aug 23, 2018 1:28 pm

    by pnm   » Thu Aug 23, 2018 1:28 pm

    0

    Replies

    13517

    Views

    by pnm   Thu Aug 23, 2018 1:28 pm
  • New forum for general number stuff

    Last post by beaker   » Thu Nov 16, 2017 6:30 am

    by pnm   » Fri Mar 28, 2014 10:51 am

    • 1
    • 2

    13

    Replies

    45395

    Views

    by beaker   Thu Nov 16, 2017 6:30 am