Magnus Opus Sudoku Ultimate

your deal

Likely cages—

Unlikely cages—

Zone shifts0

Coverage—

XV marks touched—

Neighbors constrained—

Coverage %—

Select a difficulty and start a game.

Click a cell near an XV mark to see its analysis.

v1: Constraint fill (≥5 = high)

v2: Candidates (≤2 = LIKELY)

LIKELY → Find the shape:

●Lock — forced digit

◐Signal — combo narrows

≡Beam — cage-line pointing

◇Resonance — innies/outies

⟶Vision — trial chain

Mistake Budget: 10 for all difficulties

Hard | Guided mode

How to Play Magnus Opus Sudoku Ultimate

Like Texas Hold'em, you're dealt 2 hole digits at the start — gold-glowing cells that are free answers.

Killer: Cards from different cages. Constrains cage combos, flips zones.
XV: Cards from different rows/cols/boxes. Constrains XV sum neighbors.
Hybrid: Cards from different cages, rows, cols & boxes. Both cage + XV constraints active simultaneously.

Both game types use the same 5 WSRF shapes (adapted per constraint type):