Name a field of math

What we would type in 25 seconds — rarity × spelling speed, not a dump of the public list.

Today's Krillion answers Practice this dive Dated sheet

25-second pick · +85

K-homology Deep Cut

9 letters · 1 word · ~2s to type · 461 accepted answers on the sheet

If the first word feels too easy, it probably scores 10. We would type K-homology: Deep Cut, +85, 9 letters, about 2 seconds on a keyboard. Do not burn the 25 seconds on Algebra, Calculus, Geometry, or Statistics — those are Plankton. The trench answer is Tropical geometry (+100), but only take it if you can spell it cold.

Trench spelling, only if you already know it: Tropical geometry +100

Skip Algebra · Calculus · Geometry · Statistics

Hints

Hint 1. 461 accepted answers. A strong pick is a single word, about 9 letters.

Hint 2 — a solid, typeable answer

Analysis

Hint 3 — a rare answer

K-homology · 85 pts

Best safe pick
K-homology Deep Cut 85 pts

Ranked by rarity × how easy it is to type in 25 seconds. Too Clever answers are treated as risky.

Best rare answers

  • K-homology 85 pts · Deep Cut
  • K-theory 85 pts · Deep Cut
  • KK-theory 85 pts · Deep Cut
  • L-theory 85 pts · Deep Cut
  • CR geometry 85 pts · Deep Cut
  • Fuzzy logic 85 pts · Deep Cut
  • Lie theory 85 pts · Deep Cut
  • Modal logic 85 pts · Deep Cut

Strong alternatives

  • Analysis 60 pts
  • Game theory 60 pts
  • Knot theory 60 pts
  • Set theory 60 pts
  • Biostatistics 60 pts
  • Combinatorics 60 pts
  • Cryptography 60 pts
  • Econometrics 60 pts

Avoid — Plankton

Everyone else will type these. Ten points is a surface skim.

  • Algebra 10
  • Calculus 10
  • Geometry 10
  • Statistics 10
  • Trigonometry 10

Public accepted list

Same buckets the game published. We do not re-grade. The pick above is the plan; this block is the record.

Prompt 1 of 1

Name a field of math

● One in a Krillion · 1 ● Deep Cut · 406 ● Rare · 43 ● Schooler · 6 ● Plankton · 5
One in a Krillion +100 1 answer — tap to reveal
  • Tropical geometry +100 Named for Brazil-based Imre Simon, it flattens curves into piecewise lines.
Deep Cut +85 406 answers — tap to reveal
  • Abelian group theory +85
  • Absolute geometry +85
  • Abstract analytic number theory +85
  • Abstract differential geometry +85
  • Abstract harmonic analysis +85
  • Additive combinatorics +85
  • Additive number theory +85
  • Affine differential geometry +85
  • Affine geometry +85
  • Ahlfors theory +85
  • Algebraic analysis +85
  • Algebraic combinatorics +85
  • Algebraic graph theory +85
  • Algebraic K-theory +85
  • Algebraic logic +85
  • Algebraic number theory +85
  • Algebraic statistics +85
  • Algebraic topology +85
  • Algorithmic information theory +85
  • Anabelian geometry +85
  • Analysis on metric spaces +85
  • Analytic combinatorics +85
  • Analytic number theory +85
  • Analytic theory of L-functions +85
  • Applied probability +85
  • Approximation theory +85
  • Arakelov geometry +85
  • Arithmetic combinatorics +85
  • Arithmetic dynamics +85
  • Arithmetic geometry +85
  • Arithmetic topology +85
  • Asymptotic analysis +85
  • Auslander–Reiten theory +85
  • Automata theory +85
  • Bayesian statistics +85
  • Bifurcation theory +85
  • Birational geometry +85
  • C*-algebra theory +85
  • Calculus of moving surfaces +85
  • Calculus of variations +85
  • Catastrophe theory +85
  • Categorical logic +85
  • Character theory +85
  • Chemical graph theory +85
  • Chemical reaction network theory +85
  • Class field theory +85
  • Clifford analysis +85
  • Clifford theory +85
  • Cobordism theory +85
  • Coding theory +85
  • Cohomology theory +85
  • Combinatorial commutative algebra +85
  • Combinatorial design theory +85
  • Combinatorial game theory +85
  • Combinatorial group theory +85
  • Combinatorial optimization +85
  • Combinatory logic +85
  • Commutative algebra +85
  • Complex algebraic geometry +85
  • Complex analytic geometry +85
  • Complex differential geometry +85
  • Complex dynamics +85
  • Complex geometry +85
  • Computability theory +85
  • Computable analysis +85
  • Computable model theory +85
  • Computational algebraic geometry +85
  • Computational complexity theory +85
  • Computational geometry +85
  • Computational group theory +85
  • Computational mathematics +85
  • Computational number theory +85
  • Computational statistics +85
  • Computational synthetic geometry +85
  • Computational topology +85
  • Computer algebra +85
  • Conformal geometry +85
  • Constructive analysis +85
  • Constructive function theory +85
  • Constructive mathematics +85
  • Constructive set theory +85
  • Contact geometry +85
  • Control theory +85
  • Convex analysis +85
  • Convex geometry +85
  • Convex optimization +85
  • CR geometry +85
  • Credibility theory +85
  • Decision analysis +85
  • Decision theory +85
  • Derived noncommutative algebraic geometry +85
  • Descriptive geometry +85
  • Descriptive set theory +85
  • Design of experiments +85
  • Difference algebra +85
  • Difference equations +85
  • Differential algebra +85
  • Differential algebraic geometry +85
  • Differential Galois theory +85
  • Differential topology +85
  • Diffiety theory +85
  • Diophantine approximation +85
  • Diophantine geometry +85
  • Discrepancy theory +85
  • Discrete differential geometry +85
  • Discrete exterior calculus +85
  • Discrete geometry +85
  • Discrete Morse theory +85
  • Discrete tomography +85
  • Distance geometry +85
  • Distribution theory (generalized functions) +85
  • Domain theory +85
  • Donaldson theory +85
  • Dynamical systems +85
  • Effective descriptive set theory +85
  • Elementary number theory +85
  • Elimination theory +85
  • Elliptic geometry +85
  • Engineering mathematics +85
  • Enumerative combinatorics +85
  • Enumerative geometry +85
  • Equivariant noncommutative algebraic geometry +85
  • Ergodic Ramsey theory +85
  • Ergodic theory +85
  • Euler calculus +85
  • Evolutionary game theory +85
  • Experimental mathematics +85
  • Exterior calculus +85
  • Extraordinary cohomology theory +85
  • Extremal combinatorics +85
  • Extremal graph theory +85
  • Extreme value theory +85
  • Field theory +85
  • Finite geometry +85
  • Finite model theory +85
  • Finsler geometry +85
  • First-order logic +85
  • Formal language theory +85
  • Foundations of mathematics +85
  • Fractional calculus +85
  • Fractional dynamics +85
  • Fredholm theory +85
  • Functional analysis +85
  • Functional calculus +85
  • Functional data analysis +85
  • Functional equations +85
  • Fuzzy logic +85
  • Fuzzy measure theory +85
  • Fuzzy set theory +85
  • Galois cohomology +85
  • Galois geometry +85
  • Galois theory +85
  • Gauge theory +85
  • General topology +85
  • Generalized trigonometry +85
  • Geometric algebra +85
  • Geometric analysis +85
  • Geometric calculus +85
  • Geometric combinatorics +85
  • Geometric evolution equations +85
  • Geometric function theory +85
  • Geometric graph theory +85
  • Geometric group theory +85
  • Geometric invariant theory +85
  • Geometric measure theory +85
  • Geometric probability +85
  • Geometric topology +85
  • Geometry of numbers +85
  • Geostatistics +85
  • Global analysis +85
  • Global differential geometry +85
  • Gyrotrigonometry +85
  • Hamiltonian dynamics +85
  • Harmonic analysis +85
  • Higher category theory +85
  • Higher-dimensional algebra +85
  • Higher-order logic +85
  • Hodge theory +85
  • Hodge–Arakelov theory +85
  • Homological algebra +85
  • Homology theory +85
  • Homotopical algebra +85
  • Homotopy theory +85
  • Homotopy type theory +85
  • Hopf algebra theory +85
  • Hyperbolic dynamics +85
  • Hyperbolic geometry +85
  • Hyperbolic trigonometry +85
  • Hypercomplex analysis +85
  • Hyperfunction theory +85
  • Idempotent analysis +85
  • Incidence geometry +85
  • Infinitary combinatorics +85
  • Information geometry +85
  • Information-based complexity +85
  • Integer programming +85
  • Integral equations +85
  • Integral geometry +85
  • Integral transforms +85
  • Intersection theory +85
  • Interval analysis +85
  • Intuitionistic logic +85
  • Intuitionistic mathematics +85
  • Intuitionistic type theory +85
  • Invariant theory +85
  • Inventory theory +85
  • Inverse problems +85
  • Inversive geometry +85
  • Inversive ring geometry +85
  • Itô calculus +85
  • Iwasawa theory +85
  • Iwasawa–Tate theory +85
  • Jordan algebra theory +85
  • K-homology +85
  • K-theory +85
  • Kähler geometry +85
  • KK-theory +85
  • Klein geometry +85
  • Kummer theory +85
  • L-theory +85
  • Large deviations theory +85
  • Large sample theory +85
  • Lattice theory +85
  • Lie sphere geometry +85
  • Lie theory +85
  • Limit theory +85
  • Line geometry +85
  • Local algebra +85
  • Local class field theory +85
  • Low-dimensional dynamics +85
  • Low-dimensional topology +85
  • Malliavin calculus +85
  • Markov processes +85
  • Mathematical biology +85
  • Mathematical chemistry +85
  • Mathematical crystallography +85
  • Mathematical economics +85
  • Mathematical epidemiology +85
  • Mathematical geology +85
  • Mathematical linguistics +85
  • Mathematical modeling +85
  • Mathematical oncology +85
  • Mathematical psychology +85
  • Mathematical sociology +85
  • Mathematical statistics +85
  • Matrix theory +85
  • Matroid theory +85
  • Measure theory +85
  • Metamathematics +85
  • Metric geometry +85
  • Microlocal analysis +85
  • Modal logic +85
  • Model theory +85
  • Modular representation theory +85
  • Module theory +85
  • Morse theory +85
  • Multilinear algebra +85
  • Multiple-criteria decision analysis +85
  • Multiplicative number theory +85
  • Multivariate statistics +85
  • Network theory +85
  • Nevanlinna theory +85
  • Nielsen theory +85
  • Non-abelian class field theory +85
  • Non-Archimedean analysis +85
  • Nonassociative algebra +85
  • Noncommutative algebra +85
  • Noncommutative algebraic geometry +85
  • Noncommutative geometry +85
  • Noncommutative harmonic analysis +85
  • Noncommutative topology +85
  • Nonlinear analysis +85
  • Nonlinear programming +85
  • Nonparametric statistics +85
  • Nonstandard analysis +85
  • Nonstandard calculus +85
  • Nonstandard topology +85
  • Numerical algebraic geometry +85
  • Numerical linear algebra +85
  • Operad theory +85
  • Operator algebras +85
  • Operator K-theory +85
  • Operator theory +85
  • Optimal control theory +85
  • Optimal transport +85
  • Orbifold theory +85
  • Order theory +85
  • Ordered geometry +85
  • Oscillation theory +85
  • p-adic analysis +85
  • p-adic dynamics +85
  • p-adic Hodge theory +85
  • Parabolic geometry +85
  • Paraconsistent mathematics +85
  • Parametric statistics +85
  • Partition theory +85
  • Percolation theory +85
  • Permutation group theory +85
  • Perturbation theory +85
  • Picard–Vessiot theory +85
  • Piecewise linear topology +85
  • Pluripotential theory +85
  • Pointless topology +85
  • Poisson geometry +85
  • Polyhedral combinatorics +85
  • Possibility theory +85
  • Potential theory +85
  • Predicative mathematics +85
  • Probabilistic combinatorics +85
  • Probabilistic graph theory +85
  • Probabilistic number theory +85
  • Probabilistic numerics +85
  • Projective differential geometry +85
  • Projective geometry +85
  • Proof theory +85
  • Pseudo-Riemannian geometry +85
  • Quantum algebra +85
  • Quantum calculus +85
  • Quantum group theory +85
  • Quaternionic analysis +85
  • Queueing theory +85
  • Ramsey theory +85
  • Random dynamical systems +85
  • Random matrix theory +85
  • Rational geometry +85
  • Real algebraic geometry +85
  • Real K-theory +85
  • Recreational mathematics +85
  • Regression analysis +85
  • Renewal theory +85
  • Representation theory +85
  • Representation theory of algebras +85
  • Representation theory of groups +85
  • Reverse mathematics +85
  • Ribbon theory +85
  • Riemann surface theory +85
  • Riemannian geometry +85
  • Ring theory +85
  • Rough path theory +85
  • Rough set theory +85
  • Ruin theory +85
  • Scheduling theory +85
  • Scheme theory +85
  • Scientific computing +85
  • Secondary calculus +85
  • Semigroup theory +85
  • Sequential analysis +85
  • Set-theoretic topology +85
  • Several complex variables +85
  • Sheaf theory +85
  • Sieve theory +85
  • Singularity theory +85
  • Smooth dynamics +85
  • Smooth infinitesimal analysis +85
  • Social choice theory +85
  • Special functions +85
  • Spectral geometry +85
  • Spectral graph theory +85
  • Spectral theory +85
  • Spherical geometry +85
  • Spherical trigonometry +85
  • Statistical distribution theory +85
  • Stochastic analysis +85
  • Stochastic control theory +85
  • Stochastic geometry +85
  • Stochastic optimization +85
  • Stochastic processes +85
  • Stratified Morse theory +85
  • Summability theory +85
  • Surgery theory +85
  • Survey sampling +85
  • Survival analysis +85
  • Symbolic dynamics +85
  • Symplectic geometry +85
  • Synthetic differential geometry +85
  • Synthetic geometry +85
  • Systolic geometry +85
  • Tensor calculus +85
  • Theory of computation +85
  • Tiling theory +85
  • Time series analysis +85
  • Time-scale calculus +85
  • Topological combinatorics +85
  • Topological data analysis +85
  • Topological degree theory +85
  • Topological dynamics +85
  • Topological geometry +85
  • Topological graph theory +85
  • Topological group theory +85
  • Topological K-theory +85
  • Topological transformation groups +85
  • Topos theory +85
  • Toric geometry +85
  • Transcendental number theory +85
  • Transformation geometry +85
  • Twisted K-theory +85
  • Type theory +85
  • Umbral calculus +85
  • Uncertainty quantification +85
  • Uncertainty theory +85
  • Universal algebra +85
  • Universal hyperbolic trigonometry +85
  • Utility theory +85
  • Valuation theory +85
  • Variety theory +85
  • Wavelet analysis +85
Rare +60 43 answers — tap to reveal
  • Abstract algebra +60
  • Actuarial science +60
  • Algebraic geometry +60
  • Analysis +60
  • Analytic geometry +60
  • Applied mathematics +60
  • Biostatistics +60
  • Boolean algebra +60
  • Category theory +60
  • Chaos theory +60
  • Combinatorics +60
  • Complex analysis +60
  • Cryptography +60
  • Differential calculus +60
  • Differential geometry +60
  • Discrete mathematics +60
  • Econometrics +60 Statistics shaped for economic data, a field in its own right.
  • Euclidean geometry +60
  • Finite mathematics +60
  • Fourier analysis +60
  • Fractal geometry +60
  • Game theory +60
  • Graph theory +60
  • Group theory +60
  • Information theory +60
  • Integral calculus +60
  • Knot theory +60
  • Lambda calculus +60
  • Linear programming +60
  • Mathematical finance +60
  • Mathematical logic +60
  • Mathematical physics +60
  • Multivariable calculus +60
  • Non-Euclidean geometry +60
  • Numerical analysis +60
  • Operations research +60
  • Optimization +60
  • Partial differential equations +60
  • Pure mathematics +60
  • Real analysis +60
  • Set theory +60
  • Solid geometry +60
  • Vector calculus +60
Schooler +30 6 answers — tap to reveal
  • Arithmetic +30
  • Differential equations +30
  • Linear algebra +30
  • Number theory +30
  • Probability +30
  • Topology +30
Plankton +10 5 answers — tap to reveal
  • Algebra +10
  • Calculus +10
  • Geometry +10
  • Statistics +10
  • Trigonometry +10