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Oct 5 In-Class Exercise.

Please post your solution to the Oct 5 In-Class Exercise to this thread.

Best,

Chris

Please post your solution to the Oct 5 In-Class Exercise to this thread. Best, Chris

-- Oct 5 In-Class Exercise

From the constraints in the box, we can remove 9, 2, 8 from the domain of E7. From the constraints in the column, we can remove 6, 4, 9, 2, 5, 3. From the constraints in the row, we can remove 7, 4, and 8. This leaves E7 with the domain of {1}. Then the answer for E7 is 1.

-- Oct 5 In-Class Exercise

 Initial Domain : { 1,2,3,4,5,6,7,8,9 }
 Values in Box : { 2,8,9 }
 Pruned Domain After Checking Box : { 1,3,4,5,6,7 }
 Values in Column : { 2,3,4,5,6,9 }
 Pruned Domain After Checking Column : { 1,7 }
 Values in Row : { 7,8 }
 Pruned Domain After Checking Row : { 1 }

(Edited: 2022-10-05)

Initial Domain : { 1,2,3,4,5,6,7,8,9 } Values in Box : { 2,8,9 } Pruned Domain After Checking Box : { 1,3,4,5,6,7 } Values in Column : { 2,3,4,5,6,9 } Pruned Domain After Checking Column : { 1,7 } Values in Row : { 7,8 } Pruned Domain After Checking Row : { 1 }

-- Oct 5 In-Class Exercise

Considering E7 in the box, we first look at the row constraints. From the row constraints we can remove 7,8,4. From the column constraints we can remove 6,4,9,2,5,3. This leaves E7 with a domain of {1}. Therefore, the answer for E7 is 1.

-- Oct 5 In-Class Exercise

 We can remove 9,2,8 for the box. 7 can be removed for the row. 6,4,5,3 can be removed for
 the col. So the only remaining item is 1. Answer for E7 is 1

We can remove 9,2,8 for the box. 7 can be removed for the row. 6,4,5,3 can be removed for the col. So the only remaining item is 1. Answer for E7 is 1

-- Oct 5 In-Class Exercise

From the constraints in the box, we can remove 2,8, 9 from the domain of E7. From the constraints on the column, we can eliminate 2,3,4,5,6,9. From the constraints in the row, we can eliminate 7, 8. This leaves E7 with a domain of {1} and thus the answer for E7 is 1.

-- Oct 5 In-Class Exercise

Start E7: {1,2,3,4,5,6,7,8,9}

Constraints in the box, we can remove {2,8,9}

E7: {1,3,4,5,6,7}

Constraints on the column, we can remove {2,3,4,5,6,9}

E7: {1,7}

Constraints on the row, we can remove {7,8}

E7: {1}

(Edited: 2022-10-05)

Start E7: {1,2,3,4,5,6,7,8,9} Constraints in the box, we can remove {2,8,9} E7: {1,3,4,5,6,7} Constraints on the column, we can remove {2,3,4,5,6,9} E7: {1,7} Constraints on the row, we can remove {7,8} E7: {1}

-- Oct 5 In-Class Exercise

E7 {1,2,3,4,5,6,7,8,9}

From the constraints in the box, we can remove{2, 8, 9}

From the constraints on the column, we can remove {2,3,4,5,6,9}

From the constraints on the row, we can remove {7, 8}

the leave E7 with a domain of {1}

(Edited: 2022-10-05)

E7 {1,2,3,4,5,6,7,8,9} From the constraints in the box, we can remove{2, 8, 9} From the constraints on the column, we can remove {2,3,4,5,6,9} From the constraints on the row, we can remove {7, 8} the leave E7 with a domain of {1}

-- Oct 5 In-Class Exercise

 {1,2,3,4,5,6,7,8,9}
 Remove contraints in the box 2,8,9
 {1,3,4,5,6,7}
 Remove contraints in the column 2,3,4,5,6,9
 {1,7}
 Remove contraints in the row 4,7,8
 {1}
 E7 = 1

(Edited: 2022-10-05)

{1,2,3,4,5,6,7,8,9} Remove contraints in the box 2,8,9 {1,3,4,5,6,7} Remove contraints in the column 2,3,4,5,6,9 {1,7} Remove contraints in the row 4,7,8 {1} E7 = 1

-- Oct 5 In-Class Exercise

From the box's, 2, 8, and 9 can be eliminated from E7's domain. From the column's constraints, we can eliminate 2, 3, 4, 5, 6, and 9 from E7's domain. From the row's constraints, we can eliminate 7 and 8 from E7's domain. All of these constraints mean {2, 3, 4, 5, 6, 7, 8, 9} cannot be a part of E7's domain, leaving E7 with a domain of only {1}, thus we know the answer for E7 is 1.