The Skill Atlas

Logic & DeductionLOG11 skills

Reading a statement exactly, and the arguments that prove something is impossible.

• FoundationAssumed by everything above it.

  • ○Not startedLOG-01Reading a logical statement precisely6

• CoreThe working middle of the exam.

  • ○Not startedLOG-02Truth-tellers and liars2
  • ○Not startedLOG-03Elimination grids2
  • ○Not startedLOG-04Ordering and ranking from clues2
  • ○Not startedLOG-08Working backwards10
  • ○Not startedLOG-10Weighing and balance puzzles2

• GatewayWhat the 5-point questions actually ask for.

  • ○Not startedLOG-05Parity arguments7
  • ○Not startedLOG-06Invariants and monovariants4
  • ○Not startedLOG-07Coloring arguments3
  • ○Not startedLOG-09Informal proof by contradiction11
  • ○Not startedLOG-11The extremal principle4