PAPER PRACTICE
Tents & Trees: Let one tent change the board
Three fixed studies, followed by separate answer pages. The links and IDs match the online collection.
Put one tent beside each tree, directly above, below, left or right. Each tent belongs to one different tree. Tents cannot touch, even diagonally. The row and column counts give the required number of tents. Mark grass where a tent cannot go.
Use your browser’s Print command or Save as PDF. Both A4 and US Letter fit the diagrams. To keep answers separate, print only the challenge pages. The answer pages contain two useful checkpoints; the online practice page contains the complete checked route.
CHALLENGE 1
Tents & Trees study 4
| C11 | C22 | C30 | C41 | C50 | C62 | |
|---|---|---|---|---|---|---|
| R12 | ||||||
| R21 | ||||||
| R31 | ||||||
| R40 | ||||||
| R52 | ||||||
| R60 |
Explain one move you can prove. Which displayed clue or rule supports it?
Reason: ____________________________________________________
___________________________________________________________
CHALLENGE 2
Tents & Trees study 5
| C12 | C21 | C30 | C42 | C50 | C62 | |
|---|---|---|---|---|---|---|
| R10 | ||||||
| R22 | ||||||
| R31 | ||||||
| R41 | ||||||
| R50 | ||||||
| R63 |
Explain one move you can prove. Which displayed clue or rule supports it?
Reason: ____________________________________________________
___________________________________________________________
CHALLENGE 3
Tents & Trees study 6
| C10 | C21 | C32 | C40 | C51 | C62 | |
|---|---|---|---|---|---|---|
| R11 | ||||||
| R21 | ||||||
| R31 | ||||||
| R41 | ||||||
| R50 | ||||||
| R62 |
Explain one move you can prove. Which displayed clue or rule supports it?
Reason: ____________________________________________________
___________________________________________________________
ANSWER 1
Tents & Trees study 4
| C11 | C22 | C30 | C41 | C50 | C62 | |
|---|---|---|---|---|---|---|
| R12 | ||||||
| R21 | ||||||
| R31 | ||||||
| R40 | ||||||
| R52 | ||||||
| R60 |
Two checkpoints in the solution
- A row or column clue of zero allows no tents. Mark R1C3, R2C3, R2C5, R3C3, R3C5, R4C1, R4C2, R4C3, R4C4, R4C5, R5C3, R5C5, R6C1, R6C2, R6C3, R6C4, R6C5, R6C6 as grass; tree squares stay unchanged.
- R2C4, R3C2, R3C4, R5C4 have no tree directly above, below, left or right. A diagonal tree is not sufficient, so these squares are grass.
ANSWER 2
Tents & Trees study 5
| C12 | C21 | C30 | C42 | C50 | C62 | |
|---|---|---|---|---|---|---|
| R10 | ||||||
| R22 | ||||||
| R31 | ||||||
| R41 | ||||||
| R50 | ||||||
| R63 |
Two checkpoints in the solution
- A row or column clue of zero allows no tents. Mark R1C1, R1C2, R1C3, R1C4, R1C5, R1C6, R2C3, R3C5, R4C3, R4C5, R5C2, R5C3, R5C4, R5C5, R6C3 as grass; tree squares stay unchanged.
- R2C1, R3C6, R4C4, R6C2 have no tree directly above, below, left or right. A diagonal tree is not sufficient, so these squares are grass.
ANSWER 3
Tents & Trees study 6
| C10 | C21 | C32 | C40 | C51 | C62 | |
|---|---|---|---|---|---|---|
| R11 | ||||||
| R21 | ||||||
| R31 | ||||||
| R41 | ||||||
| R50 | ||||||
| R62 |
Two checkpoints in the solution
- A row or column clue of zero allows no tents. Mark R1C1, R1C4, R2C1, R2C4, R3C1, R3C4, R4C1, R4C4, R5C1, R5C2, R5C4, R5C6, R6C1, R6C4 as grass; tree squares stay unchanged.
- R1C3, R2C5, R3C5, R3C6, R4C6, R6C2 have no tree directly above, below, left or right. A diagonal tree is not sufficient, so these squares are grass.