Starting board: 0 0 2 0 0 0 7 0 0 0 6 0 0 0 0 1 9 0 1 0 0 0 0 0 6 5 8 0 0 0 8 2 6 0 0 0 0 0 0 0 0 7 0 0 0 0 0 0 1 9 3 0 0 0 8 0 6 0 0 0 4 3 5 0 7 3 0 0 0 8 6 0 0 0 4 0 0 0 2 0 0 Live cells: 54 Max freedoms: 7 Min freedoms: 1 Average: 3.72 Median: 4 Quartile: 3 Freedom counts: 1: 2 cells 2: 8 cells 3: 16 cells 4: 11 cells 5: 12 cells 6: 4 cells 7: 1 cells Range, 1-3 freedoms: 26; 5-7 freedoms: 17 Ratio, 5-7 to 1-3: 0.65 Natural solver starting(mode=constraints_only); board: - - 2 - - - 7 - - - 6 - - - - 1 9 - 1 - - - - - 6 5 8 - - - 8 2 6 - - - - - - - - 7 - - - - - - 1 9 3 - - - 8 - 6 - - - 4 3 5 - 7 3 - - - 8 6 - - - 4 - - - 2 - - l3 actions: 0 Row pushes: 10 Col pushes: 0 Square pushes: 0 Total pushes: 10 Natural solver done; filled in 4 cells on this pass; board: - - 2 - - - 7 4 3 - 6 - - - - 1 9 2 1 - - - - - 6 5 8 - - - 8 2 6 - - - - - - - - 7 - - - - - - 1 9 3 5 - - 8 - 6 - - - 4 3 5 - 7 3 - - - 8 6 - - - 4 - - - 2 - - Board assessment after first pass: Live cells: 50 Max freedoms: 7 Min freedoms: 2 Average: 3.42 Median: 3 Quartile: 3 Freedom counts: 1: 0 cells 2: 12 cells 3: 18 cells 4: 11 cells 5: 6 cells 6: 2 cells 7: 1 cells Range, 1-3 freedoms: 30; 5-7 freedoms: 9 Ratio, 5-7 to 1-3: 0.30 Natural solver starting(mode=partial_positive); board: - - 2 - - - 7 4 3 - 6 - - - - 1 9 2 1 - - - - - 6 5 8 - - - 8 2 6 - - - - - - - - 7 - - - - - - 1 9 3 5 - - 8 - 6 - - - 4 3 5 - 7 3 - - - 8 6 - - - 4 - - - 2 - - l3 actions: 0 Row pushes: 0 Col pushes: 0 Square pushes: 0 Total pushes: 0 Natural solver done; filled in 0 cells on this pass; board: - - 2 - - - 7 4 3 - 6 - - - - 1 9 2 1 - - - - - 6 5 8 - - - 8 2 6 - - - - - - - - 7 - - - - - - 1 9 3 5 - - 8 - 6 - - - 4 3 5 - 7 3 - - - 8 6 - - - 4 - - - 2 - - Board assessment after second pass: Live cells: 50 Max freedoms: 7 Min freedoms: 2 Average: 3.42 Median: 3 Quartile: 3 Freedom counts: 1: 0 cells 2: 12 cells 3: 18 cells 4: 11 cells 5: 6 cells 6: 2 cells 7: 1 cells Range, 1-3 freedoms: 30; 5-7 freedoms: 9 Ratio, 5-7 to 1-3: 0.30 Natural solver starting(mode=positive_with_multiset); board: - - 2 - - - 7 4 3 - 6 - - - - 1 9 2 1 - - - - - 6 5 8 - - - 8 2 6 - - - - - - - - 7 - - - - - - 1 9 3 5 - - 8 - 6 - - - 4 3 5 - 7 3 - - - 8 6 - - - 4 - - - 2 - - l3 actions: 6 3 useful external multiset operations at size 2 L3 external record: 2/8, 2/7, 2/8 3 useful internal multiset operations at size 2 L3 internal record: 2/7, 2/4, 2/6 Row pushes: 17 Col pushes: 11 Square pushes: 4 Total pushes: 32 Natural solver done; filled in 2 cells on this pass; board: - - 2 - - - 7 4 3 - 6 - - - - 1 9 2 1 - - - - - 6 5 8 - - - 8 2 6 - - - - - - - - 7 - - - - - - 1 9 3 5 - - 8 - 6 - - - 4 3 5 2 7 3 - - - 8 6 - - - 4 - - 8 2 - - Board assessment after third pass: Live cells: 48 Max freedoms: 7 Min freedoms: 2 Average: 3.25 Median: 3 Quartile: 2 Freedom counts: 1: 0 cells 2: 14 cells 3: 18 cells 4: 8 cells 5: 7 cells 6: 0 cells 7: 1 cells Range, 1-3 freedoms: 32; 5-7 freedoms: 8 Ratio, 5-7 to 1-3: 0.25 Natural solver starting(mode=esoteric1); board: - - 2 - - - 7 4 3 - 6 - - - - 1 9 2 1 - - - - - 6 5 8 - - - 8 2 6 - - - - - - - - 7 - - - - - - 1 9 3 5 - - 8 - 6 - - - 4 3 5 2 7 3 - - - 8 6 - - - 4 - - 8 2 - - Solved. Solution: 5 8 2 9 6 1 7 4 3 4 6 7 3 8 5 1 9 2 1 3 9 7 4 2 6 5 8 7 9 5 8 2 6 3 1 4 3 2 1 4 5 7 9 8 6 6 4 8 1 9 3 5 2 7 8 1 6 2 7 9 4 3 5 2 7 3 5 1 4 8 6 9 9 5 4 6 3 8 2 7 1 pop_state: Overpopped state stack! Row pushes: 16 Col pushes: 23 Square pushes: 18 Total pushes: 57 Object squash operations: 2 1 total squash operations Natural solver done; we won. Grand totals: Row pushes: 43 Col pushes: 34 Square pushes: 22 Grand total pushes: 99 Solved cells at each level: 1:4, 2:0, 3:2, 4:48 Solver level: 4 Raw rating: 5.81 Level adjustment: 5.60 Stars: 5 Done.