Kropki Sudoku

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Erros
0/3
Pontuação
-
Tempo
00:00
Novo Jogo
Progresso0%
Fácil · Sudoku Kropki Altere a dificuldade acima ↑
Como jogar Kropki Sudoku
As regras padrão do Sudoku se aplicam. Ponto preto entre duas células adjacentes: um dígito é exatamente o dobro do outro. Ponto branco: os dois dígitos são consecutivos (diferem em 1). Sem ponto: nenhuma condição se aplica.
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Pontos brancos = dígitos consecutivos; pontos pretos = um dígito é o dobro do outro

O Que É Kropki Sudoku?

Kropki Sudoku coloca pontos entre pares de células adjacentes. Um ponto branco significa que os dois dígitos diferem por exatamente 1 (consecutivos). Um ponto preto significa que um dígito é exatamente o dobro do outro (por exemplo, 2 e 4, ou 3 e 6). Onde nenhum ponto aparece, nenhuma condição se aplica. Alguns quebra-cabeças Kropki usam a 'restrição negativa' onde a ausência de um ponto garante que nenhuma condição é válida, fornecendo ainda mais informações.

De Relance

Tipo de restriçãoRelações entre células
Pistas típicas18–24
Classificação de dificuldade ★★★☆☆ 3/5
Tempo médio de resolução — Fácil8 min
Tempo médio de resolução — Médio18 min
Tempo médio de resolução — Difícil35 min
Tempo médio de resolução — Especialista62 min

Como Resolver Kropki Sudoku

TécnicaO Que Ela FazNível
White Dot Pairs White dots mark consecutive digit pairs: (1,2), (2,3), …, (8,9). Cross-reference with row and column constraints. Avançado
Black Dot Pairs Black dots mark double-relationship pairs: (1,2), (2,4), (3,6), (4,8). Only these four combinations are valid. Avançado
Negative Constraint No dot between two cells means they are neither consecutive nor in a 1:2 ratio — a powerful elimination on every unmarked adjacent pair. Avançado
Dot Chain Analysis A sequence of connected dots forms a digit-value chain. Enumerate valid digit sequences for the entire chain simultaneously. Avançado
1-2-4 and 2-4-8 Chains A black dot adjacent to a white dot often forces the common 1→2→4 or 2→4→8 chain. Avançado

Tempos Médios de Resolução

Fácil
8 min
Médio
18 min
Difícil
35 min
Especialista
62 min

Perguntas Frequentes

O que é Kropki Sudoku?
Kropki Sudoku is a variant where dots appear between adjacent cells. A black dot means one of the two cells holds exactly double the value of the other. A white dot means the two cells hold consecutive digits (differing by 1). Standard Sudoku rules apply, and crucially: if there is no dot between two adjacent cells, they are guaranteed NOT to be consecutive and NOT to have a double relationship.
What does a black dot mean?
A black dot between two cells means one digit is exactly twice the other. For example: 1&2, 2&4, 3&6, 4&8. Note that 1&2 satisfies both black (1×2=2) and white (|2-1|=1) conditions — in Kropki Sudoku, a black dot is used when only the doubling relationship holds, not the consecutive one, unless specified otherwise.
What does a white dot mean?
A white dot between two cells means the digits differ by exactly 1: they are consecutive. Valid pairs are 1&2, 2&3, 3&4, 4&5, 5&6, 6&7, 7&8, 8&9. The order doesn't matter — either cell can hold the higher or lower digit.
How does the no-dot constraint work?
In standard Kropki Sudoku, every possible black dot and white dot relationship is marked. This means that if no dot appears between two adjacent cells, you can be certain those cells are neither consecutive nor in a 1:2 ratio. This negative information is just as powerful as the positive dot clues.
Is Kropki Sudoku harder than regular Sudoku?
Easy Kropki puzzles are accessible and make excellent teaching tools for the variant. Hard and expert puzzles are significantly more challenging than classic Sudoku because you must simultaneously track dot relationships and the negative no-dot constraint across every pair of adjacent cells.
How long does Kropki Sudoku take to solve?
Easy puzzles take 8–18 minutes. Medium puzzles run 18–35 minutes. Hard puzzles average 35–65 minutes and expert puzzles often exceed 90 minutes. Mastering the no-dot constraint is the key to faster solve times at all levels.
Experimente Também
XV Sudoku
Both mark adjacent-cell relationships with a powerful negative rule — XV's sum markers play exactly like kropki's dots.
Sudoku Consecutivo
Isolates the white-dot half of kropki: bars mark consecutive neighbours and silence means never consecutive.
Sudoku Maior Que
Adjacent-cell relationships again, but as inequalities — order information instead of difference and ratio.
Desafio Diário