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One square per week. A dot marks a 4-week check: 15 Nov, 13 Dec and 10 Jan. Items marked “plan ↗” open that section of the plan page.
The two triggers, every rated game
T2: your piece lands on a square he attacks. T3: after your move something of yours is loose, including a piece that was already attacked. On either, stop and find his best capture and his best check before you click. P1: one think of 60 s or more in moves 8–16.
Scan fetches your latest games from chess.com's public API (this month and last) and shows:
- the five weekly items of the plan (§9.1) for this Mon→Sun week and the previous ones, PASS or FAIL with the numbers and targets;
- the extras: medians on cue moves, P2, score and rating, and your sittings by day;
- a blunder log from your own moves, no engine: hung pieces, missed mates in 1, allowed mates in 1, missed free captures — each on a board with the punishing move.
Blunder log
Safe or not?10 cards a day · 134 of your trigger moves, half of them safe
Own-mistake trainerDue cards, then up to 2 new · 49 positions, deck A
From your games
Cards from the last scan
Scan first: each card is one of the blunder log's positions — say your answer out loud, then reveal.
Deck W
Positions from the review
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History
Saved weekly checks
Saved in this browser only (localStorage, per device). Export to move the history to another device or to keep a copy; Import merges by week.