9/6 Jacks or Better strategy: the 18-line Simple+ chart
Read your dealt hand top-to-bottom against 18 ordered lines; the first match is the play. Worth exactly 99.500% of every bet — measured over all 2,598,960 possible deals, not estimated.
Why 18 lines and not 16 or 40
The two added lines — “4 to an inside straight with 3+ high cards” (which finally handles A-K-Q-J correctly) and splitting “3 to a straight flush” by high card — carry 85% of the gain available to any flat list. Beyond 18 lines you’re memorizing penalty-card exceptions for hundredths of a percent. The full ROI analysis is in the study.
The chart, interactive
The complete 18 lines with hover explanations and worked examples live on the strategy page, and the trainer teaches by line number — every graded hand tells you which line you played and which was right.
See the full 18-line chart →Classic decisions this chart settles: low pair vs 4-flush · A-K-Q-J unsuited · breaking a flush for the royal. Playing a machine that isn’t 9/6? Read the paytable comparison first — machine selection is worth more than the last decimal of strategy.