12×12 Picross Online — 144 Cells, Six Difficulty Levels

Twelve rows, twelve columns, 144 cells. The 12×12 is the first large-format Picross grid on the platform — a meaningful step beyond the 10×10 benchmark in every dimension: richer pixel art, a 24-line constraint network, and session lengths that reward a dedicated solving approach at every difficulty level. Choose your level and start.

Choose Your 12×12 Difficulty

→ 12×12 Easy — high-overlap clues, detailed pixel-art reveals, 12–22 minute sessions

→ 12×12 Medium — multi-block clues, systematic 24-line cross-referencing

→ 12×12 Hard — full arrangement enumeration across 144 cells

→ 12×12 Expert — hypothesis technique across a 24-line network

→ 12×12 Extreme — extended multi-cycle hypothesis solving

→ 12×12 Evil — nested hypothesis chains at maximum 12×12 complexity

Why 12×12 Is a Different Kind of Picross

The first genuinely large pixel art canvas. At 144 cells, Picross images reach a resolution where portraits carry recognisable facial structure, landscapes have foreground and background elements, and complex objects show internal detail. The reveal at 12×12 is visually richer than any smaller grid and remains one of the most satisfying sizes on the platform for players who care about the image as much as the logic.

A significantly larger constraint network. The jump from 10×10 to 12×12 adds four lines to the grid — 24 total versus 20 — and 44 more cells. Each line now interacts with twelve perpendicular lines instead of ten, increasing the cross-referencing complexity substantially. The constraint management disciplines that were effective at 10×10 must be applied more rigorously at 12×12; informal tracking that was occasionally sufficient at the benchmark size becomes consistently insufficient here.

The beginning of dedicated-session territory. At 12×12 Hard and above, session lengths routinely exceed an hour. Expert, Extreme, and Evil configurations require the kind of focused, uninterrupted attention that makes them better suited to a dedicated solving session than a casual one. Many players who enjoy 10×10 regularly use 12×12 as their weekend or long-session format.

12×12 Overlap Analysis — Key Numbers

With a 12-cell line, these overlap results are the starting point for every puzzle:

Clue "12" → full line filled. Zero slack.

Clue "11" → slack 1 — cells 2–11 always filled. Ten confirmed cells.

Clue "10" → slack 2 — cells 3–10 always filled. Eight confirmed cells.

Clue "9" → slack 3 — cells 4–9 always filled. Six confirmed cells.

Clue "8" → slack 4 — cells 5–8 always filled. Four confirmed cells.

Clue "7" → slack 5 — cells 6–7 always filled. Two confirmed cells.

Clue "6" → slack 6 — zero overlap. Cross-referencing required before any cells can be confirmed.

Clue "7 4" → minimum span 12, slack 0. Forced: cells 1–7 filled, cell 8 empty, cells 9–12 filled.

Clue "6 5" → minimum span 12, slack 0. Forced: cells 1–6 filled, cell 7 empty, cells 8–12 filled.

Clue "5 6" → minimum span 12, slack 0. Forced: cells 1–5 filled, cell 6 empty, cells 7–12 filled.

Clue "4 4 2" → minimum span 12, slack 0. Forced: cells 1–4, gap, cells 6–9, gap, cells 11–12.

Where 12×12 Sits in the Full Progression

12×12 sits between the benchmark 10×10 and the extended 15×15 — close enough to 10×10 that players who have mastered the benchmark can step up without learning new techniques, but different enough in scale that the experience genuinely expands.

Players who can solve 10×10 Hard and 10×10 Expert consistently are well prepared for 12×12. The four additional lines require more disciplined pass management, and the 12-cell "6" clue — which produces zero overlap — appears more frequently than the comparable "5" clue at 10×10. Beyond those adjustments, the technique is the same.

Stuck on a specific puzzle? The 12×12 Solver identifies your next step from the current clue state.