The basic answer is no. You will have to make good any lose floor boards with screws, then fit 12mm ply over them, screwing down at every 6". This will give you a rigid and stable floor to tile on. Use flexible adhesive and grout.
take up floor boards put down 18mm wbp on joist strengthened ,then wood preserved , screw all down then use part flex mud mix ,an flex grout powdered mix ..jobs a good un ..lol
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