Problems

Note that you can solve most task in any order!
Already solved ones are at the bottom of the table.

Volume: Puzzles - total 112 (clear filter)

Id	Title	Translations	Author	Solved	Blessing
24	Neumann's Random Generator	DE ES RU		5100	5.27
59	Bulls and Cows			3223	6.07
22	Two Printers	ES RU		3428	5.96
69	Fibonacci Divisibility			2100	6.81
62	Prime Ranges			1852	7.03
80	Duel Chances			1299	7.65
36	Code Guesser	UA		1391	7.53
54	Pythagorean Triples			1209	7.77
97	Girls and Pigs			965	8.16
51	Dungeons and Dragons Dice	UA		921	8.24
66	Caesar Cipher Cracker			802	8.48
108	Star Medals			656	8.83
71	Fibonacci Divisibility Advanced			638	8.88
89	Instrument Tuner			521	9.23
131	Four Pics One Word			413	9.64
140	Proper Bracket Sequences			278	10.32
476	Prime Vowel Count		csfpython	22	14.66
173	Chords of Music			228	10.66
129	Enumerating Combinations			227	10.67
151	Word Ladders			204	10.86
139	Beam Balance and Masses			208	10.82
472	Unreachable Amounts		csfpython	18	14.99
111	Necklace Count			204	10.86
110	Lucky Tickets Advanced			196	10.93
192	Gangster Battles			153	11.35
179	Look and Say binary			131	11.62
157	Emirp primE			125	11.70
359	Find 3 Numbers		csfpython	52	13.21
496	Minimum Journey Cost		csfpython	3	17.70
100	Crossing the Road			131	11.62
372	String Minimization			43	13.53
384	Equal Hamming Distance		csfpython	36	13.83
459	Number String Multiples of Thirteen		csfpython	13	15.52
210	Ticket Puzzle			82	12.43
209	Suffix Array Advanced			79	12.49
463	Crossing Towns		csfpython	11	15.79
113	Ground Zero			104	12.02
274	Two Buckets			61	12.93
427	Cheapest Bus Tickets			20	14.81
434	A Crime on Logic Island Advanced		csfpython	18	14.99
107	Knight's Tour			99	12.10
259	Easter Bunnies		gardengnome	61	12.93
458	Mountain Panorama		csfpython	11	15.79
381	Finding Squares		csfpython	29	14.20
241	Village Ways			62	12.91
175	Algae Robot			74	12.60
218	Rain Must Fall	DE		58	13.02
255	LCM of a range			50	13.27
204	Wandering Star			60	12.96
292	Factorial Trailing Zeroes			42	13.57
421	Princess and Tiger			16	15.18
149	Prime Chains			67	12.77
307	The Problem of Too Many Clues		zelevin	36	13.83
379	Dice with Infinity Sides		telebashna	22	14.66
423	Russian Dolls		csfpython	14	15.40
180	Simple Game of Sticks			56	13.08
420	Life on a String		csfpython	14	15.40
247	Towers of Hanoi			43	13.53
450	Bead Games		csfpython	8	16.29
426	Weighted Sum of Digits 2		csfpython	11	15.79
439	Power Sum of Digits		csfpython	9	16.10
389	Binary Split Guessing Game		csfpython	16	15.18
347	Unwanted Multiples		csfpython	22	14.66
409	Election Fever		csfpython	13	15.52
338	Throwing Easter Eggs		gardengnome	23	14.58
451	Maximize Toy Production		csfpython	7	16.49
354	Too Many Divisors		csfpython	20	14.81
405	Three Friendly Knights		csfpython	13	15.52
417	Unfortunate Bubble Sort		gardengnome	11	15.79
415	Smallest Message		gardengnome	11	15.79
339	Parking Lot			20	14.81
346	Long Decimal Fractions		csfpython	19	14.90
287	Palindrome Frog		csfpython	26	14.38
393	Urban Planning		csfpython	13	15.52
217	Personality Swap			34	13.93
340	Zeckendorf Lite		csfpython	19	14.90
261	Easter Bunnies 2D		gardengnome	28	14.25
395	Growth of Micro-Organisms		csfpython	12	15.65
382	Die Throw Sequences		csfpython	13	15.52
398	Collecting Diamonds		csfpython	11	15.79
295	Vigenere Cipher Cracker			22	14.66
432	Ball Bearing Collisions		csfpython	7	16.49
383	E2C2S - try harder!		gardengnome	12	15.65
402	Game of Stones		csfpython	10	15.94
271	A Knight some Trolls and a Princess		csfpython	23	14.58
419	Special Digits		csfpython	8	16.29
424	New Towers of Hanoi		csfpython	7	16.49
413	Tree Painting		csfpython	8	16.29
341	Zeckendorf Advanced		csfpython	14	15.40
222	Easter Eggs Advanced			24	14.51
462	Rota Boards		csfpython	3	17.70
266	Pancake Sorting			19	14.90
410	Village Door Shuffle		csfpython	7	16.49
422	Mabinogion Sheep		moxieman	6	16.72
263	Easter Bunnies 3D		gardengnome	18	14.99
262	Easter Bunnies 2D Advanced		gardengnome	18	14.99
391	Scout Proficiency Badges		csfpython	8	16.29
235	Train Merge Advanced			20	14.81
221	XWords		quandray	21	14.73
279	Two Buckets Advanced		csfpython	16	15.18
365	Flower Border Arrangements		csfpython	9	16.10
333	Happy Triplets			11	15.79
373	Railroad Rat		csfpython	8	16.29
264	Party Presents		csfpython	15	15.29
430	Cutting Paper		csfpython	4	17.31
237	Road Network Destruction			16	15.18
327	Dobbin's Long Journey		csfpython	9	16.10
215	Klotski	SK		13	15.52
280	Three Buckets Re-visited		csfpython	9	16.10
232	Shift Register Randomizer			11	15.79
226	Multiplicative Persistence Backtrace			11	15.79
240	Playfair Cipher Cracking			9	16.10