mscroggs.co.uk
mscroggs.co.uk

subscribe

Puzzles

Shinro

In the grid below, there are 12 holes hidden in the grid. Each of the arrows is pointing towards at least one hole. None of the arrows covers a hole.
For example, the arrow in the first row tells you that at least one of the last four squares in that row contains a hole.
Find the location of all 12 holes.
Tags: logic
If you enjoyed this puzzle, check out Sunday Afternoon Maths VLII,
puzzles about logic, or a random puzzle.

Archive

Show me a random puzzle
 Most recent collections 

Advent calendar 2024

Advent calendar 2023

Advent calendar 2022

Advent calendar 2021


List of all puzzles

Tags

geometry tournaments quadratics sequences cards christmas sum to infinity planes even numbers numbers grids prime numbers axes integration digital clocks graphs books mean remainders indices arrows chocolate fractions addition functions surds games parabolas 2d shapes sums cryptic crossnumbers complex numbers cubics volume products algebra number probabilty combinatorics speed area decahedra logic digital products means perimeter scales routes irreducible numbers integers quadrilaterals menace colouring probability square numbers digits folding tube maps square grids multiplication wordplay lines trigonometry time cube numbers binary ave determinants pascal's triangle polygons division people maths factorials albgebra matrices sets shape chalkdust crossnumber crosswords gerrymandering consecutive integers averages elections symmetry neighbours grids percentages tiling coins doubling rectangles the only crossnumber sport pentagons geometric mean hexagons dice coordinates floors crossnumbers median numbers squares money range medians spheres 3d shapes balancing angles bases square roots odd numbers geometric means differentiation rugby perfect numbers chess dodecagons triangle numbers ellipses circles calculus consecutive numbers clocks tangents regular shapes cryptic clues expansions shapes unit fractions partitions star numbers powers palindromes proportion taxicab geometry triangles advent polynomials multiples factors dates dominos

Archive

Show me a random puzzle
▼ show ▼
© Matthew Scroggs 2012–2025