AI: Search, Games & Reasoning Mind Map

Algorithm & Systems Visualizations

Every AI: search, games & reasoning visualization on this site on one map. The branches are the main ideas. Each leaf is a page; the grey line under it is the one thing to remember about it. Click a branch to focus on it, click a page to open it.

Recall mode hides the page names. Read the hint, say the name, then click the "?" to check.

1. How the map is organized

Overview of the AI: search, games & reasoning mind map: Game search, Constraint satisfaction, Local search, Sequential decisions, Probabilistic reasoning, Logic & knowledge, State-space search.
The map at a glance: 7 branches, 12 pages.

Ask what the program is looking for:

  • A move against an opponent? Game search: minimax looks at every reply, MCTS samples them.
  • Values that obey rules? Constraint satisfaction: backtrack and prune.
  • A good solution, not proven best? Local search: change one candidate and keep the better one, with tricks to escape local optima.
  • A plan with rewards, or the truth behind noisy evidence? Sequential decisions for rewards, probabilistic reasoning for evidence.

2. The branches side by side

BranchSearches overGivesOptimal?
Game searchgame treebest moveminimax: yes; MCTS: in the limit
Constraint satisfactionpartial assignmentsa valid assignmentfinds one if it exists
Local searchcomplete solutionsa good solutionno guarantee
Sequential decisionsstates and actionsa policyyes, after convergence
Probabilistic reasoninghidden variablesprobabilities or best pathexact here

3. Five facts to remember

  • Alpha-beta gives the same answer as minimax; good move ordering lets it search about twice as deep.
  • MCTS needs no evaluation function: random playouts estimate how good a node is.
  • Hill climbing stops at local optima; random restarts and annealing escape them.
  • Value iteration needs the transition model; Q-learning learns from experience without it.
  • Viterbi finds the single most likely hidden sequence in O(T·N²) by dynamic programming.

See all AI: search, games & reasoning pages in the index, or the other mind maps.