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  <!-- ═══════════════════════════════════════════════
       CORE HTML PAGES
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  <url>
    <loc>https://masterthegrid.org/</loc>
    <lastmod>2026-06-12</lastmod>
    <changefreq>daily</changefreq>
    <priority>1.0</priority>
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  <url>
    <loc>https://masterthegrid.org/why-king-size/</loc>
    <lastmod>2026-06-12</lastmod>
    <changefreq>monthly</changefreq>
    <priority>0.8</priority>
  </url>

  <!-- ═══════════════════════════════════════════════
       KILLER SUDOKU — HTML PAGES
  ════════════════════════════════════════════════ -->
  <url>
    <loc>https://masterthegrid.org/killer-sudoku/</loc>
    <lastmod>2026-06-12</lastmod>
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    <changefreq>daily</changefreq>
    <priority>0.9</priority>
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  <url>
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    <lastmod>2026-06-12</lastmod>
    <changefreq>monthly</changefreq>
    <priority>0.8</priority>
  </url>

  <!-- ═══════════════════════════════════════════════
       JIGSAW SUDOKU — HTML PAGES
  ════════════════════════════════════════════════ -->
  <url>
    <loc>https://masterthegrid.org/jigsaw-sudoku/</loc>
    <lastmod>2026-06-12</lastmod>
    <changefreq>weekly</changefreq>
    <priority>0.9</priority>
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  <url>
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    <lastmod>2026-06-12</lastmod>
    <changefreq>daily</changefreq>
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    <lastmod>2026-06-12</lastmod>
    <changefreq>monthly</changefreq>
    <priority>0.8</priority>
  </url>

  <!-- ═══════════════════════════════════════════════
       KILLER SUDOKU — DOWNLOADABLE PDFs
       Path: puzzles/killer/{difficulty}/KDS-XXXX.pdf
  ════════════════════════════════════════════════ -->

  <!-- Easy (KDS-0001 – KDS-0005) -->
  <url><loc>https://masterthegrid.org/puzzles/killer/easy/KDS-0001.pdf</loc><lastmod>2026-06-06</lastmod><changefreq>never</changefreq><priority>0.6</priority></url>
  <url><loc>https://masterthegrid.org/puzzles/killer/easy/KDS-0002.pdf</loc><lastmod>2026-06-06</lastmod><changefreq>never</changefreq><priority>0.6</priority></url>
  <url><loc>https://masterthegrid.org/puzzles/killer/easy/KDS-0003.pdf</loc><lastmod>2026-06-06</lastmod><changefreq>never</changefreq><priority>0.6</priority></url>
  <url><loc>https://masterthegrid.org/puzzles/killer/easy/KDS-0004.pdf</loc><lastmod>2026-06-06</lastmod><changefreq>never</changefreq><priority>0.6</priority></url>
  <url><loc>https://masterthegrid.org/puzzles/killer/easy/KDS-0005.pdf</loc><lastmod>2026-06-06</lastmod><changefreq>never</changefreq><priority>0.6</priority></url>

  <!-- Medium (KDS-0006 – KDS-0010) -->
  <url><loc>https://masterthegrid.org/puzzles/killer/medium/KDS-0006.pdf</loc><lastmod>2026-06-06</lastmod><changefreq>never</changefreq><priority>0.6</priority></url>
  <url><loc>https://masterthegrid.org/puzzles/killer/medium/KDS-0007.pdf</loc><lastmod>2026-06-06</lastmod><changefreq>never</changefreq><priority>0.6</priority></url>
  <url><loc>https://masterthegrid.org/puzzles/killer/medium/KDS-0008.pdf</loc><lastmod>2026-06-06</lastmod><changefreq>never</changefreq><priority>0.6</priority></url>
  <url><loc>https://masterthegrid.org/puzzles/killer/medium/KDS-0009.pdf</loc><lastmod>2026-06-06</lastmod><changefreq>never</changefreq><priority>0.6</priority></url>
  <url><loc>https://masterthegrid.org/puzzles/killer/medium/KDS-0010.pdf</loc><lastmod>2026-06-06</lastmod><changefreq>never</changefreq><priority>0.6</priority></url>

  <!-- Hard (KDS-0011 – KDS-0015) -->
  <url><loc>https://masterthegrid.org/puzzles/killer/hard/KDS-0011.pdf</loc><lastmod>2026-06-06</lastmod><changefreq>never</changefreq><priority>0.6</priority></url>
  <url><loc>https://masterthegrid.org/puzzles/killer/hard/KDS-0012.pdf</loc><lastmod>2026-06-06</lastmod><changefreq>never</changefreq><priority>0.6</priority></url>
  <url><loc>https://masterthegrid.org/puzzles/killer/hard/KDS-0013.pdf</loc><lastmod>2026-06-06</lastmod><changefreq>never</changefreq><priority>0.6</priority></url>
  <url><loc>https://masterthegrid.org/puzzles/killer/hard/KDS-0014.pdf</loc><lastmod>2026-06-06</lastmod><changefreq>never</changefreq><priority>0.6</priority></url>
  <url><loc>https://masterthegrid.org/puzzles/killer/hard/KDS-0015.pdf</loc><lastmod>2026-06-06</lastmod><changefreq>never</changefreq><priority>0.6</priority></url>

  <!-- Extreme (KDS-0016 – KDS-0020) -->
  <url><loc>https://masterthegrid.org/puzzles/killer/extreme/KDS-0016.pdf</loc><lastmod>2026-06-06</lastmod><changefreq>never</changefreq><priority>0.6</priority></url>
  <url><loc>https://masterthegrid.org/puzzles/killer/extreme/KDS-0017.pdf</loc><lastmod>2026-06-06</lastmod><changefreq>never</changefreq><priority>0.6</priority></url>
  <url><loc>https://masterthegrid.org/puzzles/killer/extreme/KDS-0018.pdf</loc><lastmod>2026-06-06</lastmod><changefreq>never</changefreq><priority>0.6</priority></url>
  <url><loc>https://masterthegrid.org/puzzles/killer/extreme/KDS-0019.pdf</loc><lastmod>2026-06-06</lastmod><changefreq>never</changefreq><priority>0.6</priority></url>
  <url><loc>https://masterthegrid.org/puzzles/killer/extreme/KDS-0020.pdf</loc><lastmod>2026-06-06</lastmod><changefreq>never</changefreq><priority>0.6</priority></url>

  <!-- Super Extreme (KDS-0021 – KDS-0025) -->
  <url><loc>https://masterthegrid.org/puzzles/killer/superextreme/KDS-0021.pdf</loc><lastmod>2026-06-06</lastmod><changefreq>never</changefreq><priority>0.6</priority></url>
  <url><loc>https://masterthegrid.org/puzzles/killer/superextreme/KDS-0022.pdf</loc><lastmod>2026-06-06</lastmod><changefreq>never</changefreq><priority>0.6</priority></url>
  <url><loc>https://masterthegrid.org/puzzles/killer/superextreme/KDS-0023.pdf</loc><lastmod>2026-06-06</lastmod><changefreq>never</changefreq><priority>0.6</priority></url>
  <url><loc>https://masterthegrid.org/puzzles/killer/superextreme/KDS-0024.pdf</loc><lastmod>2026-06-06</lastmod><changefreq>never</changefreq><priority>0.6</priority></url>
  <url><loc>https://masterthegrid.org/puzzles/killer/superextreme/KDS-0025.pdf</loc><lastmod>2026-06-06</lastmod><changefreq>never</changefreq><priority>0.6</priority></url>

  <!-- ═══════════════════════════════════════════════
       JIGSAW SUDOKU — DOWNLOADABLE PDFs
       Path: puzzles/jigsaw/{difficulty}/KJS-XXXX.pdf
  ════════════════════════════════════════════════ -->

  <!-- Easy (KJS-0001 – KJS-0005) -->
  <url><loc>https://masterthegrid.org/puzzles/jigsaw/easy/KJS-0001.pdf</loc><lastmod>2026-06-11</lastmod><changefreq>never</changefreq><priority>0.6</priority></url>
  <url><loc>https://masterthegrid.org/puzzles/jigsaw/easy/KJS-0002.pdf</loc><lastmod>2026-06-11</lastmod><changefreq>never</changefreq><priority>0.6</priority></url>
  <url><loc>https://masterthegrid.org/puzzles/jigsaw/easy/KJS-0003.pdf</loc><lastmod>2026-06-11</lastmod><changefreq>never</changefreq><priority>0.6</priority></url>
  <url><loc>https://masterthegrid.org/puzzles/jigsaw/easy/KJS-0004.pdf</loc><lastmod>2026-06-11</lastmod><changefreq>never</changefreq><priority>0.6</priority></url>
  <url><loc>https://masterthegrid.org/puzzles/jigsaw/easy/KJS-0005.pdf</loc><lastmod>2026-06-11</lastmod><changefreq>never</changefreq><priority>0.6</priority></url>

  <!-- Medium (KJS-0006 – KJS-0010) -->
  <url><loc>https://masterthegrid.org/puzzles/jigsaw/medium/KJS-0006.pdf</loc><lastmod>2026-06-11</lastmod><changefreq>never</changefreq><priority>0.6</priority></url>
  <url><loc>https://masterthegrid.org/puzzles/jigsaw/medium/KJS-0007.pdf</loc><lastmod>2026-06-11</lastmod><changefreq>never</changefreq><priority>0.6</priority></url>
  <url><loc>https://masterthegrid.org/puzzles/jigsaw/medium/KJS-0008.pdf</loc><lastmod>2026-06-11</lastmod><changefreq>never</changefreq><priority>0.6</priority></url>
  <url><loc>https://masterthegrid.org/puzzles/jigsaw/medium/KJS-0009.pdf</loc><lastmod>2026-06-11</lastmod><changefreq>never</changefreq><priority>0.6</priority></url>
  <url><loc>https://masterthegrid.org/puzzles/jigsaw/medium/KJS-0010.pdf</loc><lastmod>2026-06-11</lastmod><changefreq>never</changefreq><priority>0.6</priority></url>

  <!-- Hard (KJS-0011 – KJS-0015) -->
  <url><loc>https://masterthegrid.org/puzzles/jigsaw/hard/KJS-0011.pdf</loc><lastmod>2026-06-11</lastmod><changefreq>never</changefreq><priority>0.6</priority></url>
  <url><loc>https://masterthegrid.org/puzzles/jigsaw/hard/KJS-0012.pdf</loc><lastmod>2026-06-11</lastmod><changefreq>never</changefreq><priority>0.6</priority></url>
  <url><loc>https://masterthegrid.org/puzzles/jigsaw/hard/KJS-0013.pdf</loc><lastmod>2026-06-11</lastmod><changefreq>never</changefreq><priority>0.6</priority></url>
  <url><loc>https://masterthegrid.org/puzzles/jigsaw/hard/KJS-0014.pdf</loc><lastmod>2026-06-11</lastmod><changefreq>never</changefreq><priority>0.6</priority></url>
  <url><loc>https://masterthegrid.org/puzzles/jigsaw/hard/KJS-0015.pdf</loc><lastmod>2026-06-11</lastmod><changefreq>never</changefreq><priority>0.6</priority></url>

  <!-- Extreme (KJS-0016 – KJS-0020) -->
  <url><loc>https://masterthegrid.org/puzzles/jigsaw/extreme/KJS-0016.pdf</loc><lastmod>2026-06-11</lastmod><changefreq>never</changefreq><priority>0.6</priority></url>
  <url><loc>https://masterthegrid.org/puzzles/jigsaw/extreme/KJS-0017.pdf</loc><lastmod>2026-06-11</lastmod><changefreq>never</changefreq><priority>0.6</priority></url>
  <url><loc>https://masterthegrid.org/puzzles/jigsaw/extreme/KJS-0018.pdf</loc><lastmod>2026-06-11</lastmod><changefreq>never</changefreq><priority>0.6</priority></url>
  <url><loc>https://masterthegrid.org/puzzles/jigsaw/extreme/KJS-0019.pdf</loc><lastmod>2026-06-11</lastmod><changefreq>never</changefreq><priority>0.6</priority></url>
  <url><loc>https://masterthegrid.org/puzzles/jigsaw/extreme/KJS-0020.pdf</loc><lastmod>2026-06-11</lastmod><changefreq>never</changefreq><priority>0.6</priority></url>

  <!-- Super Extreme (KJS-0021 – KJS-0025) -->
  <url><loc>https://masterthegrid.org/puzzles/jigsaw/superextreme/KJS-0021.pdf</loc><lastmod>2026-06-11</lastmod><changefreq>never</changefreq><priority>0.6</priority></url>
  <url><loc>https://masterthegrid.org/puzzles/jigsaw/superextreme/KJS-0022.pdf</loc><lastmod>2026-06-11</lastmod><changefreq>never</changefreq><priority>0.6</priority></url>
  <url><loc>https://masterthegrid.org/puzzles/jigsaw/superextreme/KJS-0023.pdf</loc><lastmod>2026-06-11</lastmod><changefreq>never</changefreq><priority>0.6</priority></url>
  <url><loc>https://masterthegrid.org/puzzles/jigsaw/superextreme/KJS-0024.pdf</loc><lastmod>2026-06-11</lastmod><changefreq>never</changefreq><priority>0.6</priority></url>
  <url><loc>https://masterthegrid.org/puzzles/jigsaw/superextreme/KJS-0025.pdf</loc><lastmod>2026-06-11</lastmod><changefreq>never</changefreq><priority>0.6</priority></url>

  <!-- ═══════════════════════════════════════════════
       DAILY KILLER PUZZLES
       Add a new entry each day as you upload puzzles.
  ════════════════════════════════════════════════ -->
  <url><loc>https://masterthegrid.org/daily/killer/2026-06-06-medium.pdf</loc><lastmod>2026-06-06</lastmod><changefreq>never</changefreq><priority>0.4</priority></url>

  <!-- ═══════════════════════════════════════════════
       DAILY JIGSAW PUZZLES
       Add a new entry each day as you upload puzzles.
  ════════════════════════════════════════════════ -->
  <!-- (no entries yet — add when daily jigsaw uploads begin) -->

  <!-- ═══════════════════════════════════════════════
       SAMPLE IMAGES
  ════════════════════════════════════════════════ -->
  <url><loc>https://masterthegrid.org/samples/killer_sample.png</loc><lastmod>2026-06-06</lastmod><changefreq>yearly</changefreq><priority>0.3</priority></url>
  <url><loc>https://masterthegrid.org/samples/jigsaw_sample.png</loc><lastmod>2026-06-06</lastmod><changefreq>yearly</changefreq><priority>0.3</priority></url>
  <url><loc>https://masterthegrid.org/samples/thermo_sample.png</loc><lastmod>2026-06-06</lastmod><changefreq>yearly</changefreq><priority>0.3</priority></url>

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