Archive · Puzzle #30
Sunday, June 21, 2026
NumGrid
NumGrid weekend puzzles push the format to its difficulty ceiling. Puzzle #30 from Sunday, June 21, 2026 is part of that tier; the solver needs to use optimal-information strategy (rather than name-of-the-game-recognition) to consistently solve within the guess budget. The strategy guides cover the openings that perform best on weekend-tier puzzles.
Mid-month NumGrid puzzles run the standard calibration for their day of the week. Puzzle #30 is one of those — neither early-month restart material nor late-month closing material, just the representative middle-of-the-month difficulty band.
Related puzzles & strategy
See the solution and strategy for puzzle #30
Replay the previous daily puzzle
Replay the next daily puzzle
How to solve any NumGrid in fewer guesses
Use the digit sum to narrow candidates fast
Read odd/even clues to halve the search space