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09 Dress Them Up | |

WSC and WPC 2017 -> WSC 2017 Instructions Booklet | 15 posts • Page 1 of 1 • 1 |

vopani |
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WSPC Organizer Posts: 739 Location: India | forcolin - 2017-10-03 2:13 AM 16. Unique sums sudoku. "The sum of digits in cells inside every cage most equal to the total given for the cage in the upper left cell" But there are no totals given in the upper left cells..... The sums may or may not be given, as per the instructions. It is possible no sums are given like the example. | ||

Para |
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Posts: 315 Location: The Netherlands | 6. Crossed Sudoku Assuming Crosses can appear anywhere in the grid, may Crosses have repeated digits? | ||

vopani |
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WSPC Organizer Posts: 739 Location: India | Para - 2017-10-05 8:19 AM 6. Crossed Sudoku Assuming Crosses can appear anywhere in the grid, may Crosses have repeated digits? Yes, that is correct. | ||

sinchai4547 |
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Posts: 12 Location: Thailand | For Confused knights Sudoku is there more solution (5 and 9 in cells r1c1 r3c1 and r1c4 r3c4)? or i miss some rule. | ||

vopani |
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WSPC Organizer Posts: 739 Location: India | sinchai4547 - 2017-10-05 8:36 PM For Confused knights Sudoku is there more solution (5 and 9 in cells r1c1 r3c1 and r1c4 r3c4)? or i miss some rule. '5' is present in a shaded cell, like R5C7 or R6C6. Hence, no two '5's can be placed at knight's step away from each other. There is a '5' in R4C3, so there cannot be a '5' in R3C1. | ||

purifire |
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Odd Even & Twisted Classics (SM 16/17) Author Posts: 460 Location: India | In the IB Example, I am getting multiple solution for the Maximum Arrow Sudoku. Am I missing any rule/constraint here. The 2 and 6 in R1 and R9 are interchangeable. | ||

vopani |
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WSPC Organizer Posts: 739 Location: India | purifire - 2017-10-06 5:40 PM In the IB Example, I am getting multiple solution for the Maximum Arrow Sudoku. Am I missing any rule/constraint here. The 2 and 6 in R1 and R9 are interchangeable. R5C5 = 6 with a circle. If you swap the 2s and 6s in R1 and R9, that arrow with '6' won't be satisfied. | ||

purifire |
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Odd Even & Twisted Classics (SM 16/17) Author Posts: 460 Location: India | vopani - 2017-10-06 10:16 PM purifire - 2017-10-06 5:40 PM In the IB Example, I am getting multiple solution for the Maximum Arrow Sudoku. Am I missing any rule/constraint here. The 2 and 6 in R1 and R9 are interchangeable. R5C5 = 6 with a circle. If you swap the 2s and 6s in R1 and R9, that arrow with '6' won't be satisfied. Why cant I have a 6 in R1C9? How does it negate the condition? | ||

vopani |
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WSPC Organizer Posts: 739 Location: India | purifire - 2017-10-06 10:19 PM vopani - 2017-10-06 10:16 PM purifire - 2017-10-06 5:40 PM In the IB Example, I am getting multiple solution for the Maximum Arrow Sudoku. Am I missing any rule/constraint here. The 2 and 6 in R1 and R9 are interchangeable. R5C5 = 6 with a circle. If you swap the 2s and 6s in R1 and R9, that arrow with '6' won't be satisfied. Why cant I have a 6 in R1C9? How does it negate the condition? R1C9 must be '6', as in the solution. If you swap R1C7 and R1C9, and corresponding R9C7 and R9C9, the arrow starting at R5C5 with a '6' would have digits 3, 3, 5, 2 along its arrow, and hence, does not satisfy the 'maximum' rule. If its still not clear, it would help if you could share your solution which doesn't match the one in the IB. | ||

akash.doulani |
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SM 2020 (Math) Author Posts: 157 Location: India | Rhombus Sudoku Is it necessary that there will be 9 rhombus and that each rhombus will have 9 different numbers in the middle ? | ||

vopani |
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WSPC Organizer Posts: 739 Location: India | akash.doulani - 2017-10-08 1:15 PM Rhombus Sudoku Is it necessary that there will be 9 rhombus and that each rhombus will have 9 different numbers in the middle ? No. That is just the theme of the IB example :-) | ||

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