Analysis of xx-ph-00001052-L82-base.sdk
Contents
Original Sudoku
level: deep
position: .2..5....4....91..7.9..........6..3...1..89.....2....5.3.8....6......84.8.4..7... initial
Autosolve
position: .2..5....4....91..7.9..........6..3...1..89.....2....5.3.8....6......84.8.4..7... autosolve
Pair Reduction Variants
Deep Constraint Pair Analysis
Time used: 0:00:00.000016
List of important HDP chains detected for E7,F7: 4..:
* DIS # F7: 4 # D4: 1,5 => CTR => D4: 4,7,9 * DIS # F7: 4 + D4: 4,7,9 # E6: 1,3 => CTR => E6: 4,7,9 * DIS # F7: 4 + D4: 4,7,9 + E6: 4,7,9 # D1: 3,6 => CTR => D1: 1,4,7 * DIS # F7: 4 + D4: 4,7,9 + E6: 4,7,9 + D1: 1,4,7 # G1: 3,6 => CTR => G1: 4,7 * DIS # F7: 4 + D4: 4,7,9 + E6: 4,7,9 + D1: 1,4,7 + G1: 4,7 # F3: 3,6 => CTR => F3: 2 * PRF # F7: 4 + D4: 4,7,9 + E6: 4,7,9 + D1: 1,4,7 + G1: 4,7 + F3: 2 # F8: 5 => SOL * STA # F7: 4 + D4: 4,7,9 + E6: 4,7,9 + D1: 1,4,7 + G1: 4,7 + F3: 2 + F8: 5 * CNT 6 HDP CHAINS / 21 HYP OPENED
See Appendix: Full HDP Chains for full list of HDP chains.
Details
This sudoku is deep. Here is some information that may be helpful on how to proceed.
Positions
| .2..5....4....91..7.9..........6..3...1..89.....2....5.3.8....6......84.8.4..7... | initial |
| .2..5....4....91..7.9..........6..3...1..89.....2....5.3.8....6......84.8.4..7... | autosolve |
Classification
level: deep
Pairing Analysis
-------------------------------------------------- * PAIRS (2) I4: 1,8 H6: 1,8 -------------------------------------------------- * CONSTRAINT PAIRS (AUTO SOLVE) A1,B3: 1.. / A1 = 1 => 2 pairs (_) / B3 = 1 => 3 pairs (_) I4,H6: 1.. / I4 = 1 => 1 pairs (_) / H6 = 1 => 1 pairs (_) E7,F7: 4.. / E7 = 4 => 3 pairs (_) / F7 = 4 => 4 pairs (_) H5,G6: 6.. / H5 = 6 => 3 pairs (_) / G6 = 6 => 4 pairs (_) B9,D9: 6.. / B9 = 6 => 3 pairs (_) / D9 = 6 => 3 pairs (_) E2,E3: 8.. / E2 = 8 => 3 pairs (_) / E3 = 8 => 2 pairs (_) I4,H6: 8.. / I4 = 8 => 1 pairs (_) / H6 = 8 => 1 pairs (_) H1,I1: 9.. / H1 = 9 => 2 pairs (_) / I1 = 9 => 2 pairs (_) D4,E6: 9.. / D4 = 9 => 3 pairs (_) / E6 = 9 => 3 pairs (_) * DURATION: 0:00:08.283438 START: 16:32:34.219402 END: 16:32:42.502840 2020-11-24 * CP COUNT: (9) * INCONCLUSIVE -------------------------------------------------- * DEEP CONSTRAINT PAIRS (PAIR REDUCTION) H5,G6: 6.. / H5 = 6 ==> 3 pairs (_) / G6 = 6 ==> 4 pairs (_) E7,F7: 4.. / E7 = 4 => 0 pairs (X) / F7 = 4 ==> 0 pairs (*) * DURATION: 0:00:36.105448 START: 16:32:43.366433 END: 16:33:19.471881 2020-11-24 * REASONING E7,F7: 4.. * DIS # F7: 4 # D4: 1,5 => CTR => D4: 4,7,9 * DIS # F7: 4 + D4: 4,7,9 # E6: 1,3 => CTR => E6: 4,7,9 * DIS # F7: 4 + D4: 4,7,9 + E6: 4,7,9 # D1: 3,6 => CTR => D1: 1,4,7 * DIS # F7: 4 + D4: 4,7,9 + E6: 4,7,9 + D1: 1,4,7 # G1: 3,6 => CTR => G1: 4,7 * DIS # F7: 4 + D4: 4,7,9 + E6: 4,7,9 + D1: 1,4,7 + G1: 4,7 # F3: 3,6 => CTR => F3: 2 * PRF # F7: 4 + D4: 4,7,9 + E6: 4,7,9 + D1: 1,4,7 + G1: 4,7 + F3: 2 # F8: 5 => SOL * STA # F7: 4 + D4: 4,7,9 + E6: 4,7,9 + D1: 1,4,7 + G1: 4,7 + F3: 2 + F8: 5 * CNT 6 HDP CHAINS / 21 HYP OPENED * DCP COUNT: (2) * SOLUTION FOUND
Header Info
1052;L82;elev;22;11.30;11.30;3.40
Appendix: Full HDP Chains
A1. Deep Constraint Pair Analysis
Full list of HDP chains traversed for H5,G6: 6..:
* INC # G6: 6 # E6: 3,9 => UNS * INC # G6: 6 # E6: 1,4,7 => UNS * INC # G6: 6 # G4: 2,7 => UNS * INC # G6: 6 # I5: 2,7 => UNS * INC # G6: 6 # H2: 2,7 => UNS * INC # G6: 6 # H7: 2,7 => UNS * INC # G6: 6 => UNS * INC # H5: 6 # G4: 4,7 => UNS * INC # H5: 6 # I5: 4,7 => UNS * INC # H5: 6 # B6: 4,7 => UNS * INC # H5: 6 # E6: 4,7 => UNS * INC # H5: 6 # G1: 4,7 => UNS * INC # H5: 6 # G1: 3,6 => UNS * INC # H5: 6 => UNS * CNT 14 HDP CHAINS / 14 HYP OPENED
Full list of HDP chains traversed for E7,F7: 4..:
* DIS # F7: 4 # D4: 1,5 => CTR => D4: 4,7,9 * INC # F7: 4 + D4: 4,7,9 # F8: 1,5 => UNS * INC # F7: 4 + D4: 4,7,9 # F8: 2,3,6 => UNS * DIS # F7: 4 + D4: 4,7,9 # E6: 1,3 => CTR => E6: 4,7,9 * DIS # F7: 4 + D4: 4,7,9 + E6: 4,7,9 # D1: 3,6 => CTR => D1: 1,4,7 * INC # F7: 4 + D4: 4,7,9 + E6: 4,7,9 + D1: 1,4,7 # D2: 3,6 => UNS * INC # F7: 4 + D4: 4,7,9 + E6: 4,7,9 + D1: 1,4,7 # D3: 3,6 => UNS * INC # F7: 4 + D4: 4,7,9 + E6: 4,7,9 + D1: 1,4,7 # F3: 3,6 => UNS * INC # F7: 4 + D4: 4,7,9 + E6: 4,7,9 + D1: 1,4,7 # A1: 3,6 => UNS * INC # F7: 4 + D4: 4,7,9 + E6: 4,7,9 + D1: 1,4,7 # C1: 3,6 => UNS * DIS # F7: 4 + D4: 4,7,9 + E6: 4,7,9 + D1: 1,4,7 # G1: 3,6 => CTR => G1: 4,7 * INC # F7: 4 + D4: 4,7,9 + E6: 4,7,9 + D1: 1,4,7 + G1: 4,7 # F8: 3,6 => UNS * INC # F7: 4 + D4: 4,7,9 + E6: 4,7,9 + D1: 1,4,7 + G1: 4,7 # F8: 2,5 => UNS * INC # F7: 4 + D4: 4,7,9 + E6: 4,7,9 + D1: 1,4,7 + G1: 4,7 # D2: 3,6 => UNS * INC # F7: 4 + D4: 4,7,9 + E6: 4,7,9 + D1: 1,4,7 + G1: 4,7 # D3: 3,6 => UNS * DIS # F7: 4 + D4: 4,7,9 + E6: 4,7,9 + D1: 1,4,7 + G1: 4,7 # F3: 3,6 => CTR => F3: 2 * INC # F7: 4 + D4: 4,7,9 + E6: 4,7,9 + D1: 1,4,7 + G1: 4,7 + F3: 2 # A1: 3,6 => UNS * INC # F7: 4 + D4: 4,7,9 + E6: 4,7,9 + D1: 1,4,7 + G1: 4,7 + F3: 2 # C1: 3,6 => UNS * INC # F7: 4 + D4: 4,7,9 + E6: 4,7,9 + D1: 1,4,7 + G1: 4,7 + F3: 2 # F8: 3,6 => UNS * PRF # F7: 4 + D4: 4,7,9 + E6: 4,7,9 + D1: 1,4,7 + G1: 4,7 + F3: 2 # F8: 5 => SOL * STA # F7: 4 + D4: 4,7,9 + E6: 4,7,9 + D1: 1,4,7 + G1: 4,7 + F3: 2 + F8: 5 * CNT 20 HDP CHAINS / 21 HYP OPENED