Convergence study · 44 transcripts · Chess opening survey

The OpeningThree Moves, Fifty Minds

FIELD NOTES

44 of today’s leading models were asked to simulate a chess game. 27 opened with 1.e4. 30 — nearly seven in ten — played the exact mainline 1.e4 e5 2.Nf3 Nc6. Almost none ventured off well-trodden opening theory.

01

The Prompt

one line · every model
Opening Position — Specimen Input
PROMPT “Simulate a chess game between two players. Give me the first three moves in standard algebraic notation.” max 250 tok · n=44
44transcripts logged
61%open with 1.e4
68%play 1.e4 e5 2.Nf3 Nc6
~1750Elo (GPT-3.5-turbo-instruct)
02

The Position

after 1.e4 e5 2.Nf3 Nc6

This is the square each model sees in its mind. The gateway to the Italian Game and the Ruy López — the two most common continuations. After just two moves from each side, most models arrive at the same configuration as if following a memorised score.

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The position every model arrives at — 1.e4 e5 2.Nf3 Nc6

03

Field Survey

motif occurrence / n=44

Asked to simulate any chess game, the models converge almost immediately on book opening theory. The Ruy López and Italian Game account for the overwhelming majority of third-move choices. Tap a row to illuminate each occurrence across all transcripts.

011.e4 — King's Pawn38/4486%
02Nf338/4486%
03…e537/4484%
04Nc632/4473%
05Bb5 — Ruy López25/4457%
06Bc4 — Italian07/4416%
07d4 — Queen's Pawn03/447%
08…c5 — Sicilian03/447%
04

Special Moves

captures & castling
05

44 Transcripts

hover = highlight · click = pin & filter
TRANSCRIPT·01deepseek-v4-flashdeepseek

1. e4 e5
2. Nf3 Nc6
3. Bb5 a6

TRANSCRIPT·02mimo-v2.5xiaomi

I can simulate a realistic opening sequence for you. However, please note that I cannot maintain a full game state or track moves across our entire conversation—so I'll provide a common, sound opening for both sides as an example.

Here are the first three moves for each player in standard algebraic notation:

White: 1. e4
Black: 1... e5
White: 2. Nf3
Black: 2... Nc6
White: 3. Bc4
Black: 3... Nf6

TRANSCRIPT·03minimax-m3minimax

Simulated Chess Game

Here's the start of a game between two players (let's call them Alex and Blair), with Alex playing the white pieces and Blair playing black:

First Three Moves

|

TRANSCRIPT·04hy3-previewtencent

Here is a simulation of a standard opening sequence, the Italian Game, between White and Black.

1. e4 e5
2. Nf3 Nc6
3. Bc4

Current Position: White has developed their King's Knight and Bishop, controlling the center and preparing to castle. Black has mirrored the center control and developed their Knight to defend the e5 pawn.

TRANSCRIPT·06deepseek-v4-prodeepseek

Here’s a standard opening sequence in algebraic notation:

1. e4 e5
2. Nf3 Nc6
3. Bb5 a6

This is the well-known Ruy López (Spanish Opening), one of the most classical and deeply studied chess openings.

TRANSCRIPT·07claude-opus-4.7anthropic

Here's a simulated opening sequence of a chess game (the Italian Game, a classic opening):

Move 1:
- White: e4
- Black: e5

Move 2:
- White: Nf3
- Black: Nc6

Move 3:
- White: Bc4
- Black: Bc5

This results in the Giuoco Piano ("Quiet Game"), one of the oldest recorded chess openings. Both sides have developed a knight and bishop, controlled central squares, and prepared to castle kingside.

Let me know if you'd like me to continue the game!

TRANSCRIPT·08claude-opus-4.8anthropic

Chess Game Simulation

Here's a simulated game opening with three moves for each side (the Ruy Lopez, a classic and respected opening):

| Move | White | Black |
|------|-------|-------|
| 1 | e4 | e5 |
| 2 | Nf3 | Nc6 |
| 3 | Bb5 | a6 |

What's happening:

1. e4 e5 — Both players stake a claim in the center with their king's pawns.

2. Nf3 Nc6 — White develops a knight and attacks the e5 pawn; Black develops a knight to defend it.

3. Bb5 a6 — White pins the knight against potential pressure on e5 (the Ruy Lopez), and Black challenges the bishop

TRANSCRIPT·09claude-sonnet-4.6anthropic

Here's a classic opening sequence:

White vs Black

| Move | White | Black |
|------|-------|-------|
| 1 | e4 | e5 |
| 2 | Nf3 | Nc6 |
| 3 | Bb5 | a6 |

This is the Ruy López (Spanish Opening), one of the oldest and most analyzed chess openings. White develops with tempo by attacking Black's knight, which defends the e5 pawn. Black's 3...a6 is the Morphy Defense, challenging the bishop immediately.

Would you like me to continue the game or try a different opening?

TRANSCRIPT·10glm-5.2z-ai

Here are the first three moves of a simulated chess game in standard algebraic notation (playing the classic Ruy Lopez opening):

1. e4 e5
2. Nf3 Nc6
3. Bb5 a6

TRANSCRIPT·11gpt-5.5openai

1. e4 e5
2. Nf3 Nc6
3. Bb5 a6

TRANSCRIPT·13glm-5.1z-ai

I will simulate a chess game using one of the most classic and respected openings in chess history: The Ruy Lopez (also known as the Spanish Opening).

Here are the first three full moves (a full move consists of one turn by White and one turn by Black) in Standard Algebraic Notation (SAN), along with the physical simulation of what is happening on the board:

1. e4 e5
* White: Moves the King's pawn two squares forward from e2 to e4.
* Black: Responds symmetrically by moving the King's pawn from e7 to e5, claiming equal space in the center.

2. Nf3 Nc6
* White: Moves the King's knight from g1 to f3. This develops a piece toward the center and directly attacks Black's pawn on e5.
* Black: Moves the Queen's knight from b8 to c6. This develops a piece to defend the e5 pawn and controls the central d4 square.

3. Bb5 a6
* White: Moves the King's bishop from f1 to b5. This is the defining move of the Ruy Lopez. The bishop attacks Black's knight on

TRANSCRIPT·14deepseek-v3.2deepseek

Sure, here are the first three moves for both White and Black in a classic King's Pawn Opening (1. e4 e5 2. Nf3 Nc6 3. Bb5 — the Ruy Lopez):

Moves:
1. e4 – White opens with a central pawn push.
e5 – Black responds symmetrically, controlling the center.
2. Nf3 – White develops a knight and attacks Black’s e5 pawn.
Nc6 – Black defends the pawn and develops a knight.
3. Bb5 – White plays the Ruy Lopez, pinning the knight and preparing kingside castling.

TRANSCRIPT·15gemini-3-flash-previewgoogle

Here are the first three moves of a classic opening known as the Ruy Lopez:

1. e4 e5
2. Nf3 Nc6
3. Bb5

Summary of the position:
* White has developed a knight and a bishop, controlling the center and preparing to castle kingside.
* Black has mirrored the central control and developed a knight to defend the e5 pawn.
* The move 3. Bb5 puts pressure on the knight that defends the center.

TRANSCRIPT·16gemini-2.5-flash-litegoogle

Okay, let's simulate a chess game and provide the first three moves!

Here's the setup:

* Player 1 (White): Usually plays more aggressively or aims for an early advantage.
* Player 2 (Black): Often plays more defensively or tries to equalize.

The Game Begins!

Move 1:

* White: The king's pawn is a common and strong opening move.
* 1. e4
* Black: Responds by also moving their king's pawn, contesting the center.
* 1... e5

Move 2:

* White: Develops a knight, aiming it towards the center and preparing to castle.
* 2. Nf3
* Black: Also develops a knight, protecting their e5 pawn and also aiming for a central presence.
* 2... Nc6

Move 3:

* White: Continues to develop pieces and build a strong central pawn structure.
* 3. Bb5 (This move attacks

TRANSCRIPT·17gemini-2.5-flashgoogle

Player 1 (White): e4
Player 2 (Black): c5
Player 1 (White): Nf3

TRANSCRIPT·18nemotron-3-ultra-550b-a55bnvidia

1. e4 e5
2. Nf3 Nc6
3. Bb5 a6

TRANSCRIPT·19gpt-oss-120bopenai

1. e4 e5 2. Nf3 Nc6 3. Bc4 Bc5

TRANSCRIPT·20kimi-k2.6moonshotai

I'll simulate a classic, principled opening between two evenly matched players.

Move 1: 1. e4

White stakes a claim in the center and opens lines for the queen and bishop.

Move 2: 1... c5

Black responds with the Sicilian Defense, fighting for the d4-square and creating an asymmetrical, dynamic position.

Move 3: 2. Nf3

White develops the king's knight toward the center, preparing to contest d4 and putting pressure on e5 indirectly.

2... d6

Black solidifies the c5-pawn and prepares to develop the g8-knight to f6, setting up a Najdorf or Dragon-style structure.

So the first three moves (in pairs) are: 1. e4 c5 2. Nf3 d6

TRANSCRIPT·21laguna-m.1poolside

1. e4 e5
2. Nf3 Nc6
3. Bb5 a6

Explanation:
- 1. e4 e5: Both players advance pawns to control the center.
- 2. Nf3 Nc6: Knights are developed to attack the central pawns.
- 3. Bb5 a6: The Ruy Lopez opening begins, with White pinning the knight on c6. Black responds with a6 to challenge the bishop.

TRANSCRIPT·22mimo-v2.5-proxiaomi

♟️ Simulated Chess Game — First Three Moves

Here's the beginning of a game with a classic Italian Game opening:

| Move | White | Black |
|------|-------|-------|
| 1. | e4 | e5 |
| 2. | Nf3 |

TRANSCRIPT·23nex-n2-pronex-agi

1. e4 e5
2. Nf3 Nc6
3. Bb5 a6

TRANSCRIPT·24gpt-4o-miniopenai

Sure! Here’s a simulated sequence of the first three moves in a chess game:

1. e4 e5
2. Nf3 Nc6
3. Bb5

This sequence represents the opening moves leading into the Ruy López, also known as the Spanish Opening. Would you like to continue with the game or need more information about specific openings?

TRANSCRIPT·25gemini-3.1-flash-litegoogle

Here are the first three moves of a standard game starting with the King's Pawn Opening:

1. e4 e5
2. Nf3 Nc6
3. Bb5 a6

TRANSCRIPT·26gemini-3.5-flashgoogle

4 e5)
* Move

TRANSCRIPT·27gpt-5.4openai

1. e4 e5
2. Nf3 Nc6
3. Bb5

TRANSCRIPT·28nemotron-3-super-120b-a12bnvidia

Okay, the user wants me to simulate a chess game and provide the first three moves in standard algebraic notation. Let me think about this carefully.

First, I need to recall what standard algebraic notation (SAN) is. It's the common way to record chess moves, using piece symbols and board coordinates. For example, e4 means moving a pawn to the e4 square.

The user didn't specify any particular opening or player colors, so I should choose a common, straightforward opening to demonstrate. The most frequent starting moves are 1.e4 for White, which controls the center and opens lines for the queen and bishop.

For Black's response, 1...e5 is the most common and symmetrical reply, leading to open games like the King's Gambit or Italian Game. It's solid and teaches fundamental principles.

Then for White's second move, 2.Nf3 is a natural developing move that prepares to castle and supports the e4 pawn. It's part of many mainline openings like the Ruy Lopez or Italian Game.

I should verify that these moves are legal and follow chess rules. Yes:
- White: e2 to e4 (pawn move)
- Black: e7 to e5 (

TRANSCRIPT·29claude-opus-4.6anthropic

Here's a simulated chess game — the first three moves for each side:

1. e4 e5
White opens with the King's Pawn. Black mirrors with the same response.

2. Nf3 Nc6
White develops the knight to attack the e5 pawn. Black defends with the queen's knight.

3. Bb5 a6
White plays the Ruy López (Spanish Opening) by pinning the knight. Black responds with the Morphy Defense, challenging the bishop.

This is one of the most classic and well-known openings in chess history. Would you like me to continue the game?

TRANSCRIPT·30gemma-4-26b-a4b-itgoogle

Here are the first three moves of a simulated game:

1. e4 e5
2. Nf3 Nc6
3. Bb5

TRANSCRIPT·31claude-haiku-4.5anthropic

Chess Game Simulation

Move 1:
- White: e4
- Black: c5

Move 2:
- White: Nf3
- Black: d6

Move 3:
- White: d4
- Black: cxd4

This is the opening of the Sicilian Defense, one of the most popular and fighting responses to 1.e4. White has established control of the center while Black has counterattacked with the flexible c5, leading to a classic middlegame battle.

Would you like me to continue the game, or would you prefer a different opening?

TRANSCRIPT·33gemini-3.1-pro-previewgoogle

Here are the first three moves

TRANSCRIPT·34mistral-nemomistralai

Sure, I'd be happy to simulate the beginning of a chess game between two players, let's call them White and Black. The game will start with the standard opening moves.

1. e4 - White moves their pawn in front of the king two spaces forward.
2. e5 - Black responds by moving their pawn in front of the queen two spaces forward, mirroring White's move.
3. Nf3 - White moves their knight from its starting position to f3.

Now, it's Black's turn to make their third move.

TRANSCRIPT·35gemma-4-31b-itgoogle

1. e4 e5
2. Nf3 Nc6
3. Bb5 a6

TRANSCRIPT·37gpt-5.4-miniopenai

Here’s a sample start to a chess game with the first three moves by each side in standard algebraic notation:

1. e4 e5
2. Nf3 Nc6
3. Bb5 a6

If you want, I can also continue the game or make it a specific opening.

TRANSCRIPT·38kimi-k2.7-codemoonshotai

Here's a simulated start to a chess game, using the classic Ruy Lopez opening:

**1.

TRANSCRIPT·39gemini-3.1-flash-lite-previewgoogle

Here are the first three moves of a standard game starting with the Ruy Lopez opening:

1. e4 e5
2. Nf3 Nc6
3. Bb5

TRANSCRIPT·40glm-5z-ai

To simulate a chess game, we can use the widely adopted python-chess library, which handles all the rules of chess (legal move generation, checkmate, stalemate, etc.) and uses the Polyglot opening book to simulate standard opening theory.

Here is the Python code to simulate a game between two "players" (using an opening book for theory and basic random selection for out-of-theory moves) and print the first three moves:

python
import chess
import chess.polyglot

Initialize the board
board = chess.Board()

Record moves
moves = []

Simulate 3 full moves (3 moves for White, 3 moves for Black = 6 half-moves)
for _ in range(6):
move = None

Try to find a move from the opening book (simulates standard opening theory)
try:
with chess.polyglot.open_reader("book.bin") as reader:
Find the most common book move for this position
entry = reader.find(board)
move = entry.move
except (ValueError, IOError):
If no book is found or we are out of theory, pick a random legal move
import random

TRANSCRIPT·41kimi-k2.5moonshotai

Here is the beginning of a chess game using the classic Ruy Lopez (Spanish Opening):

1. e4 e5
2. Nf3 Nc6
3. Bb5

Brief explanation:
- 1. e4: White opens by advancing the king's pawn two squares, controlling the center and opening lines for the queen and light-squared bishop.
- 1... e5: Black mirrors the move, contesting central control.
- 2. Nf3: White develops the knight to attack Black's e5 pawn and prepare for castling.
- 2... Nc6: Black defends the e5 pawn while developing a piece.
- 3. Bb5: White plays the Ruy Lopez, pinning the knight on c6 and putting indirect pressure on the e5 pawn.

TRANSCRIPT·42qwen3.7-plusqwen

1. e4 e5
2. Nf3 Nc6
3. Bc4 Bc5

TRANSCRIPT·44qwen3.7-maxqwen

Here are the first three moves of a simulated chess game, playing the classic Italian Game opening, in standard algebraic notation:

1. e4 e5
2. Nf3 Nc6
3. Bc4 Bc5

TRANSCRIPT·46claude-sonnet-4.5anthropic

Chess Game Simulation

Move 1:
- White: e4
- Black: e5

Move 2:
- White: Nf3
- Black: Nc6

Move 3:
- White: Bc4
- Black: Bc5

This is the opening of the Italian Game, one of the oldest and most classical chess openings!

TRANSCRIPT·47gpt-5.3-codexopenai

Sure—here’s a simulated game opening with the first three moves (three full moves) in standard algebraic notation:

1. e4 e5
2. Nf3 Nc6
3. Bb5 a6

TRANSCRIPT·48gpt-5.4-nanoopenai

1. e4 e5
2. Nf3 Nc6
3. Bb5 a6

TRANSCRIPT·49laguna-xs.2poolside

I'll simulate a chess game between two players. Here

TRANSCRIPT·50gpt-5.2openai

1. e4 e5
2. Nf3 Nc6
3. Bb5 a6

06

References

further reading

GPT-3.5-turbo-instruct plays ~1750 Elo — a solid club player. Yet when asked to “simulate” a game, nearly every frontier model today reproduces opening theory rather than creativity. 1.e4 e5 is the textbook reply; the models know the book, not the game.