Petrosian vs Fischer — Portoroz Interzonal 1958 (Round 13)

Описание: Tigran V Petrosian vs Robert James Fischer
Silent, no-commentary chess replay with evaluation and analysis—ideal for quiet viewing, background watching, or pausing to study key positions.
Event: Portoroz Interzonal
Site: Portoroz
Date: 1958
Round 13
Result: 1/2-1/2
Game type: Classical

Chapters:
00:00 Opening
00:23 Middlegame
03:08 Endgame

Video features:
Full move-by-move replay on a clean digital 2D board
Live evaluation bar showing who is better after each move
On-screen analysis panel with defined metrics (see below)
Synchronized piece move sounds
No commentary — focused, silent presentation for study and analysis

Analysis panel definitions:
Phase: Opening / Middlegame / Endgame. Determined by a conservative heuristic that combines game progress (move/ply) with position features (e.g., development and simplification inferred from the FEN).
Advantage: Balanced / White / Black. Derived from evaluation (White POV); Balanced is within approximately ±0.30 pawns of equality.
Eval: Win probability displayed as White–Black (e.g., 35–65), representing each side’s chances.
Position: Quiet / Dynamic / Tactical / Technical. Classified from the FEN only (allowing for material balance/imbalance and piece density/simplification).
Stability: Stable / Swingy / Volatile. Based on recent move-to-move changes in the evaluation (larger swings imply lower stability).
Material: White POV material summary (e.g., Equal, +1 Pawn, +Exchange).
Pawns: Pawn count shown as White–Black.
Sparkline: Mini-chart of evaluation over time (White POV).

This video presents a complete replay of the game between Tigran V Petrosian and Robert James Fischer, played at the Portoroz Interzonal in Portoroz on 1958 (Round 13). It is a classical tournament game. The game ends in a draw between Tigran V Petrosian and Robert James Fischer. Moves are shown on a clean digital board with synchronized piece sounds, a live evaluation bar, and an on-screen analysis panel, with no commentary—ideal for quiet viewing, background watching, or pausing to study key positions.

This game is part of the "Fischer vs Petrosian — Full Chess Game Collection" playlist on this channel.

Credits:
Game data sourced from public PGN databases.
Chess piece graphics by Cburnett (CC BY-SA 3.0) — https://commons.wikimedia.org/wiki/Ca...

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