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25 votes
1 answer
552 views

PSE Advent Calendar 2025 (Day 9): Christmas Kindling, Brightly Shining

7 votes
0 answers
58 views

PSE Advent Calendar 2025 (Day 10): PSE Advent Calendar 2025 (Day 10)

7 votes
1 answer
80 views

A Special Route (Full only)

3 votes
2 answers
249 views

No Deeper Than This

4 votes
0 answers
269 views

Supposed pigpen or rosicrucian cipher

3 votes
3 answers
153 views

8 queen puzzle unicolor variant

0 votes
0 answers
57 views

Find the next term in these 2 sequences

21 votes
1 answer
2k views

Which heptomino is it obvious can't tile the plane?

6 votes
0 answers
104 views

Refuse pawn promotion to win?

6 votes
1 answer
783 views

What is an ambidextrous word™?

24 votes
1 answer
793 views
+50

PSE Advent Calendar 2025 (Day 8): The Eightfold Way

15 votes
1 answer
2k views

What is a Thanos Word™?

2 votes
1 answer
608 views

A Strangely Warped Riddle

24 votes
2 answers
1k views

PSE Advent Calendar 2025 (Day 4): Ring Bethlehem, the day begun!

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