Rules & objective
Shuffle all 54 original picture cards and call them one at a time. Each board independently selects 16 distinct images from that same set in a 4 × 4 grid, with no free square. Agree before play: full 16, any four across/down/either diagonal, or four corners. Only called pictures may be marked; earlier calls may be caught up. Completing a pattern requires an explicit Lotería claim; the first valid claimant wins. No automatic victory or money prize. Solo is practice;2–4 local players share the public calls and switch boards to mark their own. At deck exhaustion, marks and claims remain available but calls never repeat. This edition uses our own 54 illustrations, not a commercial publisher's art or deck. Optional four-second auto calling is a digital convenience; rules/history dialogs and hidden pages pause it. Undo/Redo restore the same calls and marks and stop automatic calling. Restart keeps this deal; New round reshuffles. Changing player count or pattern starts a new round. Hints use boards and called pictures only, never future cards.
Controls
Arrows:cell · Enter:mark · Space:next card · L:claim · H:find missed · U/R:undo/redo · Esc:close window
Worked example
Mark a square only when its picture is called. Declare after completing the chosen pattern, not any arbitrary four marks.