10×10 Picross Online — 100 Cells, Six Difficulty Levels
Ten rows, ten columns, 100 cells. The 10×10 is the benchmark Picross format — the size Nintendo built the Picross S and Picross DS series around, the size most published Picross collections use as their standard, and the size against which serious solvers measure their skill. Choose your difficulty and start.
Choose Your 10×10 Difficulty
→ 10×10 Easy — high-overlap clues, clean multi-pass solves, detailed pixel art
→ 10×10 Medium — multi-block clues, genuine 20-line cross-referencing
→ 10×10 Hard — full arrangement enumeration across all 20 lines
→ 10×10 Expert — hypothesis technique across a 100-cell network
→ 10×10 Extreme — extended multi-cycle hypothesis solving
→ 10×10 Evil — nested hypothesis chains at maximum 10×10 complexity
Why 10×10 Is the Benchmark
The format Nintendo chose. Mario's Picross, Picross DS, Picross e, and Picross S all use the 10×10 grid as their core format. The 10-cell line length produces clue interactions that are complex enough to reward sustained logical analysis but bounded enough that the full constraint space remains tractable without external tools. Every solving technique in the Picross toolkit finds its clearest expression at 10×10.
The size where pixel art is genuinely expressive. At 100 cells, nonogram images reach a resolution where detail is meaningful — faces carry distinct expressions, animals have recognizable features, objects show structural detail. The reveal at 10×10 is the experience that keeps players returning to Picross across decades and platforms.
The standard against which advancement is measured. In the Picross community, the ability to complete 10×10 Expert consistently without assistance is widely recognized as the threshold of genuine advanced solving skill. Hard and Expert at this size are comparable to the most demanding puzzles in major published Picross collections. Evil goes beyond anything in commercial releases.
10×10 Overlap Analysis — Key Numbers
With a 10-cell line, these results should become automatic:
Clue "10" → full line filled. Zero slack.
Clue "9" → slack 1 — cells 2–9 always filled. Eight confirmed cells.
Clue "8" → slack 2 — cells 3–8 always filled. Six confirmed cells.
Clue "7" → slack 3 — cells 4–7 always filled. Four confirmed cells.
Clue "6" → slack 4 — cells 5–6 always filled. Two confirmed cells.
Clue "5" → slack 5 — zero overlap. Cross-referencing required before any cells can be confirmed.
Clue "4 4" → minimum span 9, slack 1 — cells 2–4 and 7–9 always filled. Six confirmed cells from a single analysis step.
Clue "6 3" → minimum span 10, slack 0. Forced: cells 1–6 filled, cell 7 empty, cells 8–10 filled.
Clue "5 4" → minimum span 10, slack 0. Forced: cells 1–5 filled, cell 6 empty, cells 7–10 filled.
Clue "3 3 2" → minimum span 10, slack 0. Full arrangement forced: cells 1–3, gap, cells 5–7, gap, cells 9–10.
Where 10×10 Sits in the Full Progression
10×10 is the centre of the platform's size range. Coming from 8×8, the jump to 20 lines and 100 cells is significant — four additional lines on each axis, 36 more cells, and substantially more constraint interactions per pass. Players who can solve 8×8 Hard and 8×8 Expert consistently will find 10×10 Medium and Hard a natural but demanding progression.
From 10×10, the path leads to 12×12 Picross and 15×15 Picross — sizes where session length increases substantially and the pixel art becomes even richer. Completing the full 10×10 difficulty spectrum is the strongest preparation for those larger formats.
Stuck on a specific puzzle? The 10×10 Solver identifies your next step from the current clue state.
FAQ
Yes — for most players. Picross S and Picross DS are primarily 10×10 formats, so players coming from those games are already calibrated for this grid size. Start at the difficulty level that matches your console experience: if you completed Normal in Picross S, try 10×10 Medium. If you cleared Hard, try 10×10 Hard or 10×10 Expert.
Hard and Expert at 10×10 are comparable to the most difficult puzzles in major published collections. If you can complete 10×10 Expert without assistance, you're operating at or above the upper tier of commercial Picross difficulty. Evil goes well beyond anything found in published collections.
Easy: 8–15 minutes. Medium: 15–28 minutes. Hard: 22–40 minutes. Expert: 35–60 minutes. Extreme: 50–80 minutes. Evil: 70–120 minutes. These ranges reflect solvers with solid technique at the relevant difficulty level.
Twenty lines instead of 16, 100 cells instead of 64, and a constraint network where each line interacts with ten perpendicular lines instead of eight. The increased interaction count means more passes are required to fully propagate constraint data, arrangement sets are larger, and hypothesis chains are longer. The technique is the same; the scale of every operation is greater.