Problems

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

Volume: Puzzles - total 86 (clear filter)

Id	Title	Translations	Author	Solved	Blessing
24	Neumann's Random Generator	DE ES RU		4618	5.27
59	Bulls and Cows			2864	6.09
22	Two Printers	ES RU		3019	6.00
69	Fibonacci Divisibility			1857	6.85
62	Prime Ranges			1627	7.08
80	Duel Chances			1135	7.70
36	Code Guesser	UA		1165	7.66
54	Pythagorean Triples			1036	7.86
97	Girls and Pigs			846	8.21
51	Dungeons and Dragons Dice	UA		795	8.32
66	Caesar Cipher Cracker			707	8.52
405	Three Friendly Knights		csfpython	7	16.31
108	Star Medals			595	8.82
71	Fibonacci Divisibility Advanced			546	8.97
89	Instrument Tuner			456	9.28
131	Four Pics One Word			386	9.57
140	Proper Bracket Sequences			243	10.37
384	Equal Hamming Distance		csfpython	21	14.55
173	Chords of Music			192	10.78
381	Finding Squares		csfpython	21	14.55
372	String Minimization			27	14.13
151	Word Ladders			190	10.80
402	Game of Stones		csfpython	4	17.13
129	Enumerating Combinations			197	10.74
389	Binary Split Guessing Game		csfpython	13	15.34
139	Beam Balance and Masses			182	10.87
359	Find 3 Numbers		csfpython	31	13.90
192	Gangster Battles			136	11.38
393	Urban Planning		csfpython	9	15.92
111	Necklace Count			176	10.93
110	Lucky Tickets Advanced			166	11.03
398	Collecting Diamonds		csfpython	5	16.81
179	Look and Say binary			119	11.61
157	Emirp primE			113	11.70
395	Growth of Micro-Organisms		csfpython	5	16.81
379	Dice with Infinity Sides		telebashna	11	15.61
100	Crossing the Road			115	11.67
210	Ticket Puzzle			69	12.54
209	Suffix Array Advanced			69	12.54
383	E2C2S - try harder!		gardengnome	8	16.11
113	Ground Zero			89	12.11
274	Two Buckets			40	13.47
382	Die Throw Sequences		csfpython	7	16.31
259	Easter Bunnies		gardengnome	42	13.39
175	Algae Robot			66	12.62
354	Too Many Divisors		csfpython	14	15.22
107	Knight's Tour			81	12.27
204	Wandering Star			53	12.99
347	Unwanted Multiples		csfpython	15	15.11
292	Factorial Trailing Zeroes			29	14.01
241	Village Ways			42	13.39
218	Rain Must Fall	DE		45	13.27
346	Long Decimal Fractions		csfpython	14	15.22
307	The Problem of Too Many Clues		zelevin	23	14.40
149	Prime Chains			60	12.78
338	Throwing Easter Eggs		gardengnome	15	15.11
391	Scout Proficiency Badges		csfpython	3	17.52
180	Simple Game of Sticks			46	13.24
287	Palindrome Frog		csfpython	22	14.48
340	Zeckendorf Lite		csfpython	12	15.47
255	LCM of a range			28	14.07
339	Parking Lot			12	15.47
247	Towers of Hanoi			29	14.01
261	Easter Bunnies 2D		gardengnome	23	14.40
341	Zeckendorf Advanced		csfpython	10	15.76
217	Personality Swap			29	14.01
271	A Knight some Trolls and a Princess		csfpython	17	14.90
333	Happy Triplets			8	16.11
365	Flower Border Arrangements		csfpython	4	17.13
373	Railroad Rat		csfpython	3	17.52
263	Easter Bunnies 3D		gardengnome	15	15.11
262	Easter Bunnies 2D Advanced		gardengnome	15	15.11
266	Pancake Sorting			14	15.22
279	Two Buckets Advanced		csfpython	12	15.47
221	XWords		quandray	17	14.90
222	Easter Eggs Advanced			16	15.00
235	Train Merge Advanced			14	15.22
327	Dobbin's Long Journey		csfpython	5	16.81
215	Klotski	SK		13	15.34
237	Road Network Destruction			11	15.61
264	Party Presents		csfpython	9	15.92
226	Multiplicative Persistence Backtrace			11	15.61
251	Radio Spies			7	16.31
232	Shift Register Randomizer			7	16.31
240	Playfair Cipher Cracking			6	16.54
280	Three Buckets Re-visited		csfpython	4	17.13