Checks before snacks
Before grabbing material, run the forcing-move scan: checks → captures → threats. The top card literally had mate available.
2 verified mates missedStockfish film room · 5-minute chess
Stop losing the thread when the attack is already yours.
This pass is framed like a coach watching tape: board-first moments, clear correction lines, and tiny repeatable drills instead of a dump of engine labels.
8recent games
19conversion misses
2verified missed mates
31danger reps
Training themes
The coach layer turns engine output into repeatable habits. Each theme is countable, so a future agent can track progress automatically.
Convert while hot
When Stockfish says winning/clearly better, the job is not “find a nice move” — it is keep initiative and remove counterplay.
lost-opportunity stackKing walks need a seatbelt
Several collapses are king-move decisions under pressure. Treat king moves as high-risk: ask what line you are entering.
recurring K-move blundersFilm room
Red is what happened. Green is the coach line. These are the moments worth replaying before the next block of games.
Missed matemove 46 · scan checks first
King move instead of the kill shot
Coach line: queen to f3 Qf3#
Verified board mate. Highest-value habit: checks first before any attacking “natural” move.
open source game →
Missed matemove 41 · scan checks first
Pawn check when mate was on the board
Coach line: queen to e2 Qe2#
The attack was already decisive. The drill is to stop and find the forcing queen move.
open source game →
Lost opportunitymove 36 · finish the attack
Quiet pawn move cooled the attack
Coach line: queen to f2 Qf2+
When already winning, prioritize forcing moves and king pressure over “useful” pawn pushes.
open source game →
Lost opportunitymove 40 · finish the attack
Snack capture instead of the forcing queen route
Coach line: queen to e2 Qe2+
Pattern: grabbing material when the opponent king is the target. Make the king answer first.
open source game →Label legend
Kept, but demoted. Labels are supporting evidence; the coaching theme is the product.
Keep patternBEST
Engine agrees. Notice what good quiet moves look like.
Tiny leakINACCURACY
Small drift. Useful only when repeated across games.
Pause cueMISTAKE
Real swing: next-time alarm bell.
Danger habitBLUNDER
Big collapse, usually tactical or king-safety related.
Conversion missLOST OPPORTUNITY
You were better, but let the attack cool off.
Win was thereMISSED WIN
A winning route was available, not necessarily mate.
Checkmate scanMISSED MATE
Only used after board-verified checkmate.
FineGOOD
Not perfect, but no real damage.
Game tape
Latest games, compressed into coachable reps instead of notation soup.
film room / game 170683449728
open ↗Black timeout vs 373 · d6/g6 queen-pawn defense
MISSED MATE 2LOST OPPORTUNITY 8MISTAKE 1INACCURACY 7
- MISSED MATEmove 46 · scan checks first
Played king to g5
winning → equal-ish · mate was availableKg5; coach wants queen to f3Qf3#. - MISSED MATEmove 41 · scan checks first
Played pawn to d2
winning → better · mate was availabled2+; coach wants queen to e2Qe2#. - LOST OPPORTUNITYmove 36 · finish the attack
Played pawn to b3
winning → clearly better · decisive engine swingb3; coach wants queen to f2Qf2+.
film room / recurring leak
White losses: king-move panic reps
BLUNDER multipleMISTAKE multiple
- KING SAFETYtraining tag
Several big eval drops are king moves under pressure. Treat every king move as a forced-line calculation, not a vibes move.
next drill: after every candidate king move, find opponent’s strongest check
Next design/system upgrades
Direction for the “eye” agent: make this feel like a serious chess coach, not a data report.
Interactive boardnext
Replace GIF-only cards with a move-stepper board, arrows, and coach voiceover copy.
Coach identitytheme
Film-room language, habit tags, progress counters, and “homework before next game” should drive the UI.
Vision QArequired
Every deploy needs screenshot review for hierarchy, mobile fit, text collisions, and whether the page feels chess-native.