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Tag Archives: Board Puzzles
Solution to Puzzle #196: Bugs on a Board
Apologies for not posting anything in the last few weeks, was traveling on work or vacation through this period. This was not a very difficult puzzle, but I got correct answers only from the two people who solve every puzzle … Continue reading
Puzzle #196: Bugs on a Board
Yet another very fine puzzle from A Moscow Math Circle: Week by Week Problems by Sergey Dorichenko. Each square of a 9 x 9 board has a bug sitting on it. On a signal, each bug crawls onto one of … Continue reading
Puzzle #194: Adjacent Cells On a Chessboard
This is another beauty of a puzzle from A Moscow Math Circle: Week by Week Problems by Sergey Dorichenko. The numbers from 1 to 64 have been placed in each square on a chessboard such that each number appears exactly … Continue reading
Solution to Puzzle #191: 1×4 Rectangular Stone Plates
This was one of my favorite puzzles, though slightly difficult. Unfortunately I got only one correct answer this time, from Suman Saraf. Well done Suman! The answer is “no”. Look at the unusual coloring of the 10×10 board above. Please … Continue reading
Solution to Puzzle #185: Marker on a 9×9 Board
This was a great puzzle, and I received correct answers from Suman Saraf and Prakhar – very well done! Please see the figure below. Let’s divide the entire board, except for the central square, into 2×1 dominos. For example, it … Continue reading
Puzzle #186: 4×4 Grid
This is another wonderful puzzle from A Moscow Math Circle, Week by week problem Sets by Sergey Dorichenko. There are two parts to the problem: (a) Place seven stars in a 4×4 grid so that, no matter which two rows … Continue reading
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