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Quiz on poker math and rules of thumb. Pick categories, set a count, generate — then answer A/B/C/D and hit Show results for the explanation and a tweakable formula for each math question.

Math reference
Pot odds equity needed to call
bet / (pot + 2 × bet)
  • Pot 100, bet 33 (⅓) → 33 / 166 ≈ 20%
  • Pot 100, bet 50 (½) → 50 / 200 = 25%
  • Pot 100, bet 75 (¾) → 75 / 250 = 30%
  • Pot 100, bet 100 (pot) → 100 / 300 ≈ 33%
Bluff fold equity fold % to break even
bet / (pot + bet)
  • Bet ⅓ pot → 25%
  • Bet ½ pot → 33%
  • Pot-sized bet → 50%
  • Overbet 2× pot → 67%
MDF min. defense frequency
pot / (pot + bet)
  • Bet ⅓ pot → 75%
  • Bet ½ pot → 67%
  • Bet ⅔ pot → 60%
  • Pot-sized bet → 50%
Rule of 2 & 4 approx. draw equity
outs × 4 (flop → river) | outs × 2 (one card)
  • 4 outs (gutshot), turn → 8%
  • 8 outs (open-ender), turn → 16%
  • 9 outs (flush draw), flop → 36%
  • 15 outs (combo draw), flop → 60%
Set mining need ≥ 20 : 1
effective stack / call
  • 100bb stack, 3bb open → 33 : 1
  • 200bb stack, 5bb open → 40 : 1
  • 50bb stack, 3bb open → 17 : 1
  • 25bb stack, 2.5bb open → 10 : 1
M-ratio tournament zone
stack / (SB + BB + ante × players)
  • M ≥ 20 → Green (full play)
  • M 10–20 → Yellow (some pressure)
  • M 6–10 → Orange (push/fold most spots)
  • M 1–6 → Red (push/fold always)
Effective stack caps win/loss
min(hero stack, villain stack)
  • 100bb vs 40bb → 40bb
  • 200bb vs 200bb → 200bb
  • 25bb vs 80bb → 25bb
  • 50bb vs 50bb → 50bb

Setup