3 Locks PuzzleI have a safe with three keycard locks. That is, each lock is like a hotel door lock where you insert a card to operate the lock. I have three cards that look identical, a correct card for each of the locks. The safe operates as follows. If only one or two of... Continue Reading →
Sinquefield Cup 2017: An epic chess battle and a “Puzzle” (?)
Sinquefield Cup 2017 is progressing well and taking interesting twists and turns! Here is an analysis video of an epic chess battle between Magnus Carlsen and Maxime Vachier-Lagrave (aka MVL). The game was equal for most of the part, and yet ultimately Carlsen ended up losing it! Check subtle traps and strategies explained by... Continue Reading →
How Usain Bolt Can Break His Own Record…
If Usain Bolt is given this math problem just ahead of race he would run even faster and break his own record! So don't doubt if Maths can help in life... Now go solve the problem!

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