How to solve Case 07 | Mae's Detective School

Step 2 of 9Book: step 2

Ollie → A2

○ placed✕ ruled out (for whom: the letter)▢ look here⊙ still possible

Ollie's clue links Ollie and Gisela: “He was north and west of Gisela.” Gisela is not placed yet, but she can still be on 7 squares. So check Ollie's squares: a square only stays if at least one of Gisela's squares fits with it (in another row and column). Only A1 or A2 pass: Ollie can only be there.
Lesson 4 · A clue that leans on someone Lesson 8 · Direction words
Ollie's clue links Gisela and Ollie: “He was north and west of Gisela.” Ollie is not placed yet, but he can still be at A1 or A2. So check Gisela's squares: a square only stays if at least one of Ollie's squares fits with it (in another row and column). A1, C1, A2 or A3 fail, so Gisela can only be at B2, C2 or B3.
Lesson 4 · A clue that leans on someone Lesson 8 · Direction words
Rule 3: the victim's room holds exactly two people, the victim and the murderer. So Prue needs a square where exactly one other person can join her. At F1, G1, H1, H2 or H3, only Edna could reach the Projection Box, but she would stand in her row or column there, and nobody shares a row or column. So Prue can't be at F1, G1, H1, H2 or H3.
Lesson 5 · The victim's room: one visitor
Rule 3 again: Prue needs a square where exactly one other person can join her. At E8, F8, G8 or H8, only Reggie and Edna could reach the Piano Pit, but they would stand in her row or column there, and nobody shares a row or column. So Prue can't be at E8, F8, G8 or H8.
Lesson 5 · The victim's room: one visitor
Rule 3 again: Prue needs a square where exactly one other person can join her. At F6, G6 or H6, only Reggie and Felicita could reach the Auditorium, but they would stand in her row or column there, and nobody shares a row or column. So Prue can't be at F6, G6 or H6.
Lesson 5 · The victim's room: one visitor
Rule 3 again: Prue needs a square where exactly one other person can join her. At A6, only Reggie and Edna could reach the Balcony, but they would stand in her row or column there, and nobody shares a row or column. So Prue can't be at A6.
Lesson 5 · The victim's room: one visitor
Rule 3 again: Prue needs a square where exactly one other person can join her. At A2, only Ollie, Gisela, Reggie and Edna could reach the Snack Bar, but they would stand in her row or column there, and nobody shares a row or column. So Prue can't be at A2.
Lesson 5 · The victim's room: one visitor
Ollie can't be at A1: then Tilly's clue “She was alone in the Box Office.” could not come true for any of the squares Tilly has left.
Lesson 4 · A clue that leans on someone
Ollie said: “He was north and west of Gisela.” Row 4 and column D already have their person, so those squares are crossed out. A1, C1, E1, F1, G1, H1, B2, C2, F2, G2, H2, A3, B3, E3, F3, G3, H3, A5, B5, C5, E5, F5, G5, H5, A6, B6, C6, E6, F6, G6, H6, A7, B7, C7, E7, F7, G7, H7, A8, B8, E8, F8, G8 and H8 were ruled out above. One square is left: A2. So Ollie stood there.
Lesson 1 · Only one square fits Lesson 8 · Direction words

Step 3 of 9Book: step 2

Gisela → B3

○ placed✕ ruled out (for whom: the letter)▢ look here⊙ still possible

Gisela said: “She was in the north-west quarter of the floor plan.” With Ollie at A2, the clue leaves B3, B4, C4 and D4. B4, C4 and D4 are in row 4, where Lottie already stands. One square is left: B3. So Gisela stood there.
Lesson 1 · Only one square fits Lesson 8 · Direction words

Step 4 of 9Book: step 3

Edna → H1

○ placed✕ ruled out (for whom: the letter)▢ look here⊙ still possible

Look at row 5. Every row holds exactly one person, and only Prue can still stand in row 5 (C5, E5, F5, G5 or H5). So Prue must be in row 5, even though her clue allows other squares. All her other squares are out.
Lesson 2 · Every row needs someone
Look at row 1: nobody stands in row 1 yet. Who can still go there? Only Edna: everyone else either has it crossed out or is kept away by their own clue. Edna's only square in row 1 is H1, so she stood there.
Lesson 2 · Every row needs someone

Step 5 of 9Book: step 4

Reggie → F8

○ placed✕ ruled out (for whom: the letter)▢ look here⊙ still possible

Look at row 8. Every row holds exactly one person, and nobody stands in row 8 yet. Who can still go there? Only Reggie: everyone else either has it crossed out or is kept away by their own clue. Reggie's only square in row 8 is F8, so he stood there.
Lesson 2 · Every row needs someone

Step 6 of 9Book: step 5

Felicita → G6

○ placed✕ ruled out (for whom: the letter)▢ look here⊙ still possible

Felicita said: “She was in row 6, beside a velvet seat.” That fits F6 and G6. F6 is in column F, where Reggie already stands. One square is left: G6. So Felicita stood there.
Lesson 1 · Only one square fits

Step 7 of 9Book: step 6

Prue → E5

○ placed✕ ruled out (for whom: the letter)▢ look here⊙ still possible

Rule 3: the victim's room holds exactly two people, the victim and the murderer. So Prue needs a square where exactly one other person can join her. At C5, nobody could join her: nobody else can still stand in the Balcony. So Prue can't be at C5.
Lesson 5 · The victim's room: one visitor
Prue is the victim: her card gives no square, only Rule 3. Rows 1, 2, 3, 4, 6 and 8 and columns A, B, D, F, G and H already have their person, so those squares are crossed out. C5 was ruled out above. C7 and E7 were ruled out in step 4. One square is left: E5. So Prue stood there.
Lesson 1 · Only one square fits

Step 8 of 9Book: step 6

Tilly → C7

○ placed✕ ruled out (for whom: the letter)▢ look here⊙ still possible

Tilly said: “She was alone in the Box Office.” That fits E6, B7, C7, D7, E7, F7, G7 and B8. E6 is in row 6, where Felicita already stands. B8 is in row 8, where Reggie already stands. B7 is in column B, where Gisela already stands. D7 is in column D, where Lottie already stands. E7 is in column E, where Prue already stands. F7 is in column F, where Reggie already stands. G7 is in column G, where Felicita already stands. One square is left: C7. So Tilly stood there.
Lesson 1 · Only one square fits