GPT-6 Astra Solved Chess. Unbelievable.

Summary
Chess International Master and creator Levy Rozman (GothamChess) analyzes a full game of chess he played against OpenAI’s GPT-6 Astra. He walks through the game move-by-move on a digital board, demonstrating the model’s opening play in the French Defense, its tactical evaluation, and its post-game self-assessment of their respective skill levels.

What is shown

• [00:36] Levy introduces GPT-6 Astra and recounts previous language models’ inability to play legal, coherent chess.
• [01:10] The Chess.com analysis board interface showing a match between “GM GPT-6 Astra” (White) and “GM Levy Rozman” (Black).
• [02:12] Astra opening with 1. e4, followed by 2. d4 and 3. Nc3 into the French Defense, Winawer Variation (3... Bb4).
• [05:11] Astra capturing Black’s g-pawn and h-pawn with its Queen (Qg4, Qxg7, Qxh7), building a +2 to +3 evaluation advantage on the engine evaluation bar.
• [13:00 - 17:00] Levy explains positional concepts (good vs. bad bishops) and highlights Astra’s strategic mistakes, specifically 16. c4 instead of locking the center with c5, followed by 18. Bd1 and 21. Bb4.
• [22:31] Black executing a tactical breakthrough with 25... Nxd4.
• [23:38] Levy playing 27... Qxh2+, leading to a forced sequence where Black checkmates White on h1 at [23:19].
• [24:18] On-screen screenshot of GPT-6 Astra’s post-game self-analysis and rating estimation text response.

Claims & numbers

• The presenter states that the full game took approximately an hour and a half to play due to the model’s prolonged thinking times and needing a reboot [01:14].
• The presenter notes that Stockfish evaluated Astra’s peak position at over +3 to +3.5 pawns advantage during the middlegame [10:08, 23:44].
• According to the screenshot of GPT-6 Astra’s generated post-game report, Astra estimated Black’s play at 1400–1700 Chess.com rapid and its own play as White at 1000–1300 [24:18].

Notable quotes

• “Recently, GPT-6 Astra came out... but I was just interested in one thing: can it play chess? And fortunately, or unfortunately, the answer is yes.” [00:36]
• “At this point I’m thinking, okay, it’s pulling resources from some sort of opening book, right? ... It’s not actually thinking on its own.” [03:50]
• “It knows how to play chess now, and it’s pretty good.” [04:59]

Assessment
This is a game review and hands-on capability test by an independent chess content creator. The analysis shows a real game played move-by-move using digital board recreation, confirming that GPT-6 Astra played legal moves and demonstrated strong opening and middlegame proficiency before blundering in a tactical king attack.

Described by gemini-3.8-flash on 2026-10-10 from the video’s audio and frames.