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*** SudoRules 20.1.s based on CSP-Rules 2.1.s, config = W+SFin
*** using CLIPS 6.32-r764
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singles ==> r2c2 = 3, r2c8 = 5, r8c2 = 4, r9c7 = 8, r9c2 = 1, r1c3 = 1, r7c9 = 1, r9c9 = 4, r9c8 = 2, r1c8 = 6, r1c7 = 7, r3c9 = 3, r8c9 = 6, r6c9 = 9, r4c9 = 5, r8c7 = 3, r5c8 = 3, r7c1 = 8, r1c2 = 8, r5c2 = 9
115 candidates, 459 csp-links and 459 links. Density = 7.0%
whip[1]: r7n3{c6 .} ==> r9c6 ≠ 3, r9c4 ≠ 3
hidden-pairs-in-a-column: c4{n1 n7}{r4 r6} ==> r6c4 ≠ 6, r6c4 ≠ 3, r4c4 ≠ 9, r4c4 ≠ 6, r4c4 ≠ 4, r4c4 ≠ 3
singles ==> r7c4 = 3, r4c6 = 9, r6c6 = 3
biv-chain[3]: r4c5{n6 n4} - b8n4{r7c5 r7c6} - c6n2{r7 r5} ==> r5c6 ≠ 6
biv-chain[3]: r9n5{c4 c6} - r1c6{n5 n4} - c4n4{r1 r5} ==> r5c4 ≠ 5
naked-pairs-in-a-block: b5{r4c5 r5c4}{n4 n6} ==> r6c5 ≠ 6, r5c6 ≠ 4, r5c5 ≠ 6, r5c5 ≠ 4
biv-chain[4]: r4c5{n6 n4} - b8n4{r7c5 r7c6} - c6n2{r7 r5} - r5c7{n2 n6} ==> r5c4 ≠ 6, r4c7 ≠ 6
stte