Blog Post #54: Happy Easter!

Dear Readers,

In addition to wishing you all a very happy Easter, I also have fresh Maths and Chess puzzles for you to enjoy!


Have fun solving

1LOVE x 3 = LOVE5

in which L, O, V and E represent different whole numbers from 1-9. Note that 1LOVE and LOVE5 both represent five-digit numbers, in normal base ten.


The diagram shows a position from a recent chess training game that I played as White against my computer. We see that I stand a whole rook down, but the position matters more than material. It is White to play and win!

Solutions to the above two puzzles will be published in the next blog post.


The true story of the puzzle was: “Isabelle used a free page from her school diary, but the drawing was actually made exactly 2n weeks after the date shown on the page, where the exponent n is the largest whole number that is possible to-date.

Your fun challenge is to figure out the value of n, and the precise date on which Isabelle actually drew her drawing.”

ANSWER: Isabelle drew her drawing on Thursday 14 March 2019, exactly 224 days=32 weeks=25 weeks after the date shown on her diary page. n=5.

To conclude this article, I again wish everyone a wonderful Easter now xxx

Author: Paul A. Motwani

My name is Paul Motwani, but my colleagues, my students and their parents mostly call me "Mr. Mo"! My middle initial, A, stands for Anthony, because I was born on the official feast day of St. Anthony of Padua, the patron saint of miracles and of lost souls. I love teaching Mathematics and Chess, and giving fun-packed talks and shows in schools and clubs. The popular ingredients of Math, Chess, Mystery and Magic are my "Fantastic Four", and I give prizes too! I am an International Chess Grandmaster, and (loooooong ago!) I was the World Under-17 Champion. I am the author of five published chess books and hundreds of newspaper articles. I live with my wonderful wife and son in Belgium. I also love music, movies and puzzles. I blog at My e-mail address is You can find me on Facebook, too.

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