Griductive

Griductive places twenty people on four columns and five rows, each secretly criminal or innocent, with a single arrangement that satisfies all of the board's statements. What sets it apart is what it refuses: the board will not accept a verdict you have not proved. A correct call flips the card, green for innocent and red for criminal, and releases the statement that person carried, so every correct deduction pays off in information. Some cards are already flipped at the start to give you a foothold.

1. Tap a character and decide: criminal or innocent. If you are right, the card flips and delivers its statement. If you are wrong, you get feedback without ending the case.
2. Tap an already resolved card to foreground its statement: it comes forward, the rest of the board darkens, and its words color exactly the people they refer to. A long press dismisses it when you're done.
3. Use Mark to place pencil notes: the dot cycles through a hypothesis red and green, then through three neutral shades for grouping.
4. Hint works in two stages: it first outlines the statement you need, then designates the person you can name next.

Because a board that refuses your unproven moves completely changes the nature of the exercise. Elsewhere, deduction is a discipline the player imposes on themselves; here it is a rule enforced by the game, and error becomes information instead of punishment. Add an elegantly simple loop: each correct verdict flips a card and frees a new statement, so the grid documents itself at the pace you solve it. Finally, spotlighting a statement, which darkens the board and colors only the people that sentence concerns, solves in one gesture what logic grids usually make paper endure.

Two colors and nothing else: green for innocent, red for criminal, applied to the card at the moment your verdict is validated. The coloring of hints, however, only appears on the selected statement: a hue therefore always means "look here," never "this is the state of the board." And an error does not close the game: it answers you. The board behaves as a verifier rather than a judge, which makes the question "are you allowed to say that" more interesting than the question "are you right."

La grille du jour

A new one each day at midnight Eastern Time according to the guide, the cases growing over the week from a mild Monday toward a knottier weekend.

La semaine

Seven numbered dots sit above the board, from MON EASY to SUN HARD.

Guide, stratégie et archive

A "How to Play" page complete with glossary, a Strategy page and an Archive link, all accessible from within the game.

• Don't fixate on anyone. The guide is clear: there is always at least one verdict already forced on the board, and the right opening question is not "who is guilty" but "who have the clues already decided on without your noticing."
• After each flipped card, reread all the statements. What a newly flipped card unlocks is almost always somewhere other than the line you were reading.
• Stuck doesn't mean unlucky. The guide says: if nothing is forced, it's because a word is being read more broadly than it's written, a "next to" taken for a "near," an "exactly" taken for an "at least."
• Not all flipped cards carry a logical clue. Some only deliver a character line; the usable statements, however, talk about neighbors, rows, or columns.
• The glossary fixes the vocabulary before you need it: rows counted from the top, columns lettered from the left, C2 for column C row 2. It's the first thing to reread when a grid seems unsolvable.