Rules

Guess the NERDLE in 6 tries. After each try, the color of the tiles will change to show how close your guess is to the solution.

If the tile becomes GREEN, your number or operation is located at correct place. If the tile becomes RED, your number or opeartion exists within the expression, but at different place.

• Each try is a calculation (math expression).
• You can use 0 1 2 3 4 5 6 7 8 9 + - * / or =.
• It must contain one “=”.
• It must only have a number to the right of the “=”, not another calculation.
• Standard order of operations applies, so calculate * and / before + and - eg. 3+2*5=13 not 25!

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On This Day

Woods patent In 1884, Granville T. Woods - the prolific black American inventor - was issued his first patent. This covered his innovation for a "Steam Boiler Furnace" (U.S. No. 299,894). He continued inventing for over 20 more years and received several dozen more patents, many of which were related to railroad equipment controls and communication. Woods also patented an egg incubator for 50,000 eggs. Perhaps his most important invention was the "Synchronous Multiplex Railway Telegraph" (1887) which he designed for the purpose of making rail travel safer. It averted accidents by keeping each train informed of the whereabouts of the one immediately ahead or following it, and in communicating with the stations from moving trains.

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