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New SHS solver features.
a. Added recognition for M-Wings/Rings type
designations, as defined in RonK's thread here:
b. Added a “Wings and Rings” checkbox to
specifically look for W and M Rings and Wings
c. You can also list all elimination paths for any step
in the solution path. Here is an example listing with a breakdown of
possible eliminations for step 6 in the solution path.
1. [47.106..] path[2] Hidden Pair, Column.
r12c4<>4, r12c4<>6
2. [47.102..] path[2] Skyscraper, Columns.
r1c6<>4, r3c1<>4
3. [47.100..] path[2] Skyscraper, Columns,
dual-ends. r1c6<>6, r3c1<>6
5. [48.94..] path[2] Finned X-Wing, Rows.
r8c7<>3
6.
[48.93.r]
XY-Wing
=> r1c89<>6 --
Find/Apply/Solve?
----
(1)
XY-Wing
=>
r1c89<>6
---- (2) Discontinuous Nice Loop =>
r1c9<>6
---- (3) One AHS Chain, grouped => r1c9<>6
---- (4) Discontinuous Nice Loop =>
r1c9<>6
---- (5) M-Ring, type A => r2c1<>7,
r8c2<>6
---- (6) ALC2 Column-Box (M-Ring C). => r2c1<>7,
r8c2<>6
---- (7) M-Ring, type B, grouped => r2c1<>7,
r8c2<>6
---- (8) M-Ring, type B => r2c1<>7,
r8c2<>6
---- (9) X-Cycle (loop) => r2c79<>4
---- (10) X-Chain => r2c79<>4
---- (11) X-Chain => r2c79<>4
---- (12) M-Wing, type 3B, grouped => r2c7<>6
---- (13) W-Wing, dual-ends => r2c7<>6,
r8c6<>6
---- (14) M-Wing, type 2B, dual-ends => r2c7<>6,
r8c6<>6
---- (15) Discontinuous Nice Loop => r8c2<>6
---- (16) M-Wing, type 4A => r8c6<>6
---- (17) W-Wing => r8c6<>6
---- (18) ALC2 Box-Column (M-Ring D). => r2c1<>7,
r8c2<>6
7. [48.91.r] path[3] W-Wing, dual-ends.
r2c7<>6, r8c6<>6
8. [48.89.r] path[3] M-Wing, type 3A,
grouped. r9c8<>6
9. [48.88.r] path[3] X-Cycle (loop). r2c79<>4
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