Problems

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

Volume: Puzzles - total 107 (clear filter)

Id	Title	Translations	Author	Solved	Blessing
24	Neumann's Random Generator	DE ES RU		4776	5.29
59	Bulls and Cows			2968	6.12
22	Two Printers	ES RU		3154	6.01
459	Number String Multiples of Thirteen		csfpython	5	16.90
69	Fibonacci Divisibility			1930	6.87
62	Prime Ranges			1688	7.10
80	Duel Chances			1181	7.72
458	Mountain Panorama		csfpython	5	16.90
36	Code Guesser	UA		1231	7.65
54	Pythagorean Triples			1081	7.87
97	Girls and Pigs			879	8.23
51	Dungeons and Dragons Dice	UA		826	8.34
66	Caesar Cipher Cracker			732	8.55
108	Star Medals			611	8.86
71	Fibonacci Divisibility Advanced			567	8.99
89	Instrument Tuner			474	9.30
131	Four Pics One Word			397	9.61
140	Proper Bracket Sequences			259	10.35
173	Chords of Music			201	10.79
151	Word Ladders			198	10.81
129	Enumerating Combinations			204	10.76
139	Beam Balance and Masses			191	10.88
192	Gangster Battles			141	11.40
111	Necklace Count			182	10.96
110	Lucky Tickets Advanced			173	11.05
434	A Crime on Logic Island Advanced		csfpython	11	15.69
427	Cheapest Bus Tickets			14	15.30
451	Maximize Toy Production		csfpython	3	17.60
179	Look and Say binary			123	11.63
372	String Minimization			36	13.74
450	Bead Games		csfpython	3	17.60
359	Find 3 Numbers		csfpython	38	13.64
157	Emirp primE			115	11.75
100	Crossing the Road			118	11.71
423	Russian Dolls		csfpython	11	15.69
384	Equal Hamming Distance		csfpython	23	14.49
381	Finding Squares		csfpython	23	14.49
209	Suffix Array Advanced			72	12.56
210	Ticket Puzzle			71	12.58
432	Ball Bearing Collisions		csfpython	7	16.40
421	Princess and Tiger			10	15.84
113	Ground Zero			96	12.06
420	Life on a String		csfpython	10	15.84
274	Two Buckets			46	13.32
107	Knight's Tour			84	12.29
175	Algae Robot			67	12.68
439	Power Sum of Digits		csfpython	4	17.21
426	Weighted Sum of Digits 2		csfpython	7	16.40
259	Easter Bunnies		gardengnome	45	13.36
241	Village Ways			49	13.21
204	Wandering Star			55	13.02
218	Rain Must Fall	DE		50	13.18
292	Factorial Trailing Zeroes			33	13.88
405	Three Friendly Knights		csfpython	10	15.84
149	Prime Chains			61	12.84
379	Dice with Infinity Sides		telebashna	15	15.19
389	Binary Split Guessing Game		csfpython	13	15.42
409	Election Fever		csfpython	9	16.01
307	The Problem of Too Many Clues		zelevin	27	14.22
180	Simple Game of Sticks			48	13.25
393	Urban Planning		csfpython	10	15.84
338	Throwing Easter Eggs		gardengnome	19	14.80
255	LCM of a range			32	13.93
354	Too Many Divisors		csfpython	16	15.09
247	Towers of Hanoi			33	13.88
347	Unwanted Multiples		csfpython	17	14.99
413	Tree Painting		csfpython	6	16.63
398	Collecting Diamonds		csfpython	8	16.19
340	Zeckendorf Lite		csfpython	16	15.09
382	Die Throw Sequences		csfpython	10	15.84
339	Parking Lot			16	15.09
417	Unfortunate Bubble Sort		gardengnome	5	16.90
287	Palindrome Frog		csfpython	23	14.49
395	Growth of Micro-Organisms		csfpython	8	16.19
402	Game of Stones		csfpython	7	16.40
430	Cutting Paper		csfpython	3	17.60
415	Smallest Message		gardengnome	5	16.90
217	Personality Swap			31	13.99
346	Long Decimal Fractions		csfpython	14	15.30
383	E2C2S - try harder!		gardengnome	9	16.01
261	Easter Bunnies 2D		gardengnome	24	14.42
419	Special Digits		csfpython	4	17.21
410	Village Door Shuffle		csfpython	5	16.90
271	A Knight some Trolls and a Princess		csfpython	21	14.64
422	Mabinogion Sheep		moxieman	3	17.60
341	Zeckendorf Advanced		csfpython	10	15.84
262	Easter Bunnies 2D Advanced		gardengnome	16	15.09
295	Vigenere Cipher Cracker			13	15.42
365	Flower Border Arrangements		csfpython	7	16.40
222	Easter Eggs Advanced			19	14.80
221	XWords		quandray	19	14.80
424	New Towers of Hanoi		csfpython	2	18.10
263	Easter Bunnies 3D		gardengnome	15	15.19
266	Pancake Sorting			14	15.30
391	Scout Proficiency Badges		csfpython	4	17.21
279	Two Buckets Advanced		csfpython	12	15.55
235	Train Merge Advanced			15	15.19
333	Happy Triplets			8	16.19
327	Dobbin's Long Journey		csfpython	8	16.19
237	Road Network Destruction			13	15.42
215	Klotski	SK		13	15.42
264	Party Presents		csfpython	10	15.84
226	Multiplicative Persistence Backtrace			11	15.69
373	Railroad Rat		csfpython	3	17.60
280	Three Buckets Re-visited		csfpython	7	16.40
232	Shift Register Randomizer			9	16.01
240	Playfair Cipher Cracking			8	16.19