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Recent Problems

IDDescription / TitleSolved By
723Pythagorean Quadrilaterals
63
722Slowly converging series
215
721High powers of irrational numbers
205
720Unpredictable Permutations
175
719Number Splitting
666
718Unreachable Numbers
215
717Summation of a Modular Formula
262
716Grid Graphs
171
715Sextuplet Norms
127
714Duodigits
393