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1c:["$","$L18",null,{"level":4,"title":"Level 4 | Defensive plan and tempo control","children":["$","p",null,{"children":"The final level addresses expert switching: anticipating the declarer’s future discards, avoiding dangerous returns, and retaining the lead at the critical moment. Defence is conceived as a global plan, where the slightest tempo error hands the contract to the opponents."}]}]
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