medium 9×9 Set 4 Table Grid
1=3=16x0-7=74=
7=14+56=0-10+3
72x56x7-4=5=3-
42x8=2=3=
2-11+8=1=45x93-
45x1=7=8
5=4x3=24x821x72-29=
9=42-37+10-168x8
10+7+4=1=9=
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138259746
789564213
372945861
617892354
463728195
956173482
541387629
294631578
825416937