A robot is located on the cell with a red arrow, facing in the direction the arrow points. The robot is programmed to move forward until it reaches a wall (the perimeter of the puzzle or a black cell) or a cell it has already visited. At this point, the robot will attempt to turn 90 degrees to the right and continue moving forward again; if a wall or a cell that has already been visited it to its right, the robot will attempt to turn left instead. The robot will stop when it can no longer move to a cell it hasn't already visited. Shade in some of the cells black such that the robot will visit every white cell in the grid, and stop on a dot. Cells containing dots or arrows may not be black; additionally, the robot must exit a cell with an arrow (including the cell it starts on) in the direction the arrow indicates. (See here for an illustrated example.)
Blog Archive
-
▼
2010
(211)
-
▼
September
(23)
- Monday Mutant 44: Right Way Robot
- Monday Mutant 43: Right Way Robot
- Puzzle 450: Room and Reason 35
- Monday Mutant 42: Battleships
- Puzzle 449: Streaming Content 31
- Puzzle 448: Straight and Arrow 32
- Puzzle 447: Room and Reason 34
- Puzzle 446: Quad-Wrangle 16
- Puzzle 445: Seek and Spell 10
- Puzzle 444: Streaming Content 30
- Monday Mutant 41: Battleships
- Puzzle 443: Artist's Block 9
- Puzzle 442: Circumnavi-Gates 15
- Puzzle 441: Blackbarrier Jam 15
- Puzzle 440: Twincognito 21
- Puzzle 439: Tetra Firma 28
- Puzzle 438: Straight and Arrow 31
- Monday Mutant 40: Cross the Streams (partially inv...
- Puzzle 437: Room and Reason 33
- Puzzle 436: Process of Illumination 32
- Puzzle 435: Block Band 5
- Puzzle 434: Pearls of Wisdom 42
- Puzzle 433: Polyominous 42
-
▼
September
(23)
Labels
- Adam's Grapple (3)
- Artist's Block (11)
- Battleships (15)
- Blackbarrier Jam (25)
- Block Band (9)
- Bridged Series (4)
- Circumnavi-Gates (23)
- contests (171)
- Cross the Streams (22)
- Crowd Nine (23)
- Danny Boy's Pipes (2)
- Dominnocuous (12)
- Double Entry (3)
- Eliza Pseudonym of Puzzlania (14)
- Ellbound (6)
- Evil Zingers (16)
- Fencing Match (63)
- Grant's Review Corner (13)
- Kevin's Puzzles at Home (85)
- Logic Masters India (16)
- Logicsmith Exhibition (18)
- Melon's Secret Castle (3)
- Monday Mutants (175)
- Numeral Crossing (12)
- Outside the Fox Puzzles (4)
- Patron Puzzles for Philanthropy (15)
- Pearls of Wisdom (72)
- Polyominous (104)
- Prev-Arrow-Cation (7)
- Process of Illumination (54)
- Proof of Quilt (15)
- puzzles (619)
- Quad-Wrangle (41)
- Reunion Tour (8)
- Right Way Robot (2)
- Ripple Play (8)
- Room and Reason (53)
- rules (31)
- Seek and Spell (19)
- Solomon's Keep (7)
- Spirits of Serpentine (13)
- Straight and Arrow (54)
- Streaming Content (51)
- Streampunk (9)
- Tatami For Now (8)
- Tetra Firma (65)
- The Inner Limits (11)
- The Joy of Puzzling (8)
- Totally Awesum (26)
- Twincognito (24)
- Wordy Wednesday (540)
- Writer's Block (3)