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Recent Problems

IDDescription / TitleSolved By
677Coloured Graphs
67
676Matching Digit Sums
129
675$2^{\omega(n)}$
318
674Solving $\mathcal{I}$-equations
101
673Beds and Desks
166
672One more one
161
671Colouring a Loop
93
670Colouring a Strip
197
669The King's Banquet
197
668Square root smooth Numbers
490