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mmiikkoollaajj's Study 1, checkmate with 1 rook and queen.

1 • mmiikkoollaajj •
  1. checkmate
  1. mmiikkoollaajj

gpt-4-0613-t1.5 vs gpt-4-turbo-2024-04-09-t0.0

1 • bbrum •
  1. Game 1 — 2026-04-29 — gpt-4-0613-t1.5
  2. Game 2 — 2026-04-28 — gpt-4-turbo-2024-04-09-t0.0
  3. Game 3 — 2026-04-28
  1. bbrum

Puzzle Themes

1 • Devishi09 •
  1. Promotion
  2. Trapped piece
  3. Advanced pawn
  4. Skewer
  1. Devishi09

Interesting zugzwang

1 • robal •
  1. Chapter 1
  1. robal

Karpov Topalov

1 • robal •
  1. Chapter 1
  1. robal

even games

1 • littlechessmeister •
  1. Chapter 1
  2. Chapter 2
  1. littlechessmeister

20261029 Magnus Öngün - Ulf Wiegmann

1 • ulfwiegmann •
  1. MD Open 2
  1. ulfwiegmann

J. Kruse - M.Busch

1 • RealMartinBusch •
  1. Chapter 1
  1. RealMartinBusch

DaRealDragonDog's Study

1 • DaRealDragonDog •
  1. What is the Christian opening and why is it not the Saragossa
  2. Key ideas since it is idea based mostly
  3. How good actually is the Christian?
  4. Final notes
  1. DaRealDragonDog

Halloween

2 • Saavir23 •
  1. Chapter 1
  1. Saavir23

claude-sonnet-4-20250514-t1.0-tb1024 vs gpt-4.1-nano-t1.5

1 • bbrum •
  1. Game 1 — 2026-04-29 — claude-sonnet-4-20250514-t1.0-tb1024
  2. Game 2 — 2026-04-28
  3. Game 3 — 2026-04-28 — claude-sonnet-4-20250514-t1.0-tb1024
  1. bbrum

queens gambit trap

1 • chessmaster730 •
  1. Chapter 1
  1. chessmaster730

queens gambit

1 • chessmaster730 •
  1. Chapter 1
  1. chessmaster730

A1_Session22

2 • chess_talentgum •
  1. The Pin - Exercise 11-1 *
  2. The Pin - Exercise 11-2 *
  3. The Pin - Exercise 11-3 *
  4. The Pin - Exercise 11-4 **
  1. chess_talentgum

A1_Session21

2 • chess_talentgum •
  1. The Pin - The Absolute Pin 11-1
  2. The Pin - The Absolute Pin 11-2
  3. The Pin - Winning Material By Means Of A Pin 11-3
  4. The Pin - Winning Material By Means Of A Pin 11-4
  1. chess_talentgum

A1_Session20

2 • chess_talentgum •
  1. The Opposition - Exercise 10-1 ***
  2. The Opposition - Exercise 10-2 ***
  3. The Opposition - Exercise 10-3 ***
  4. The Opposition - Exercise 10-4 *
  1. chess_talentgum