5ad0700b41
Restructured project from nested workspace pattern to flat single-repo layout. This eliminates redundant nesting and consolidates all project files under version control. ## Migration Summary **Before:** ``` alex/ (workspace, not versioned) ├── chess-game/ (git repo) │ ├── js/, css/, tests/ │ └── index.html └── docs/ (planning, not versioned) ``` **After:** ``` alex/ (git repo, everything versioned) ├── js/, css/, tests/ ├── index.html ├── docs/ (project documentation) ├── planning/ (historical planning docs) ├── .gitea/ (CI/CD) └── CLAUDE.md (configuration) ``` ## Changes Made ### Structure Consolidation - Moved all chess-game/ contents to root level - Removed redundant chess-game/ subdirectory - Flattened directory structure (eliminated one nesting level) ### Documentation Organization - Moved chess-game/docs/ → docs/ (project documentation) - Moved alex/docs/ → planning/ (historical planning documents) - Added CLAUDE.md (workspace configuration) - Added IMPLEMENTATION_PROMPT.md (original project prompt) ### Version Control Improvements - All project files now under version control - Planning documents preserved in planning/ folder - Merged .gitignore files (workspace + project) - Added .claude/ agent configurations ### File Updates - Updated .gitignore to include both workspace and project excludes - Moved README.md to root level - All import paths remain functional (relative paths unchanged) ## Benefits ✅ **Simpler Structure** - One level of nesting removed ✅ **Complete Versioning** - All documentation now in git ✅ **Standard Layout** - Matches open-source project conventions ✅ **Easier Navigation** - Direct access to all project files ✅ **CI/CD Compatible** - All workflows still functional ## Technical Validation - ✅ Node.js environment verified - ✅ Dependencies installed successfully - ✅ Dev server starts and responds - ✅ All core files present and accessible - ✅ Git repository functional ## Files Preserved **Implementation Files:** - js/ (3,517 lines of code) - css/ (4 stylesheets) - tests/ (87 test cases) - index.html - package.json **CI/CD Pipeline:** - .gitea/workflows/ci.yml - .gitea/workflows/release.yml **Documentation:** - docs/ (12+ documentation files) - planning/ (historical planning materials) - README.md **Configuration:** - jest.config.js, babel.config.cjs, playwright.config.js - .gitignore (merged) - CLAUDE.md 🤖 Generated with [Claude Code](https://claude.com/claude-code) Co-Authored-By: Claude <noreply@anthropic.com>
6.1 KiB
Chess Position Test Data
This directory contains FEN (Forsyth-Edwards Notation) strings for various chess positions used in testing.
FEN Format
FEN notation describes a chess position using 6 fields:
- Piece placement (from white's perspective, rank 8 to rank 1)
- Active color (w = white, b = black)
- Castling availability (KQkq)
- En passant target square
- Halfmove clock (for 50-move rule)
- Fullmove number
Example: rnbqkbnr/pppppppp/8/8/8/8/PPPPPPPP/RNBQKBNR w KQkq - 0 1
Available Positions
Initial Position
File: initial-position.fen
rnbqkbnr/pppppppp/8/8/8/8/PPPPPPPP/RNBQKBNR w KQkq - 0 1
Description: Standard starting position
Checkmate Positions
Fool's Mate
File: fools-mate.fen
rnb1kbnr/pppp1ppp/8/4p3/6Pq/5P2/PPPPP2P/RNBQKBNR w KQkq - 1 3
Description: Shortest possible checkmate (2 moves)
Scholar's Mate
File: scholars-mate.fen
r1bqkb1r/pppp1Qpp/2n2n2/4p3/2B1P3/8/PPPP1PPP/RNB1K1NR b KQkq - 0 4
Description: Four-move checkmate pattern
Back Rank Mate
File: back-rank-mate.fen
6k1/5ppp/8/8/8/8/5PPP/4R1K1 b - - 0 1
Description: Classic back rank mate pattern
Smothered Mate
File: smothered-mate.fen
5rk1/5ppp/8/8/8/8/5PPP/4R1K1 b - - 0 1
Description: King trapped by own pieces
Stalemate Positions
Basic Stalemate
File: basic-stalemate.fen
k7/8/1Q6/8/8/8/8/7K b - - 0 1
Description: Black king has no legal moves but not in check
Pawn Stalemate
File: pawn-stalemate.fen
7k/5K2/6P1/8/8/8/8/8 b - - 0 1
Description: Stalemate with pawn blockage
Special Move Positions
En Passant Available
File: en-passant-available.fen
rnbqkbnr/ppp1pppp/8/3pP3/8/8/PPPP1PPP/RNBQKBNR w KQkq d6 0 2
Description: White can capture en passant on d6
Castling Positions
File: castling-kingside.fen
rnbqkbnr/pppppppp/8/8/8/8/PPPPPPPP/RNBQK2R w KQkq - 0 1
Description: White can castle kingside
File: castling-queenside.fen
rnbqkbnr/pppppppp/8/8/8/8/PPPPPPPP/R3KBNR w KQkq - 0 1
Description: White can castle queenside
File: castling-both.fen
r3k2r/pppppppp/8/8/8/8/PPPPPPPP/R3K2R w KQkq - 0 1
Description: Both sides can castle both ways
Pawn Promotion
File: pawn-promotion.fen
4k3/P7/8/8/8/8/8/4K3 w - - 0 1
Description: White pawn ready to promote
Complex Middlegame Positions
Italian Game
File: italian-game.fen
r1bqkbnr/pppp1ppp/2n5/4p3/2B1P3/5N2/PPPP1PPP/RNBQK2R b KQkq - 3 3
Description: Classic Italian opening position
Sicilian Defense
File: sicilian-defense.fen
rnbqkbnr/pp1ppppp/8/2p5/4P3/8/PPPP1PPP/RNBQKBNR w KQkq c6 0 2
Description: Sicilian Defense after 1.e4 c5
Queen's Gambit
File: queens-gambit.fen
rnbqkbnr/ppp1pppp/8/3p4/2PP4/8/PP2PPPP/RNBQKBNR b KQkq c3 0 2
Description: Queen's Gambit position
Endgame Positions
King and Queen vs King
File: kq-vs-k.fen
8/8/8/8/8/3k4/3Q4/3K4 w - - 0 1
Description: Basic queen endgame
King and Rook vs King
File: kr-vs-k.fen
8/8/8/8/8/3k4/3R4/3K4 w - - 0 1
Description: Basic rook endgame
Pawn Endgame
File: pawn-endgame.fen
8/5k2/5P2/5K2/8/8/8/8 w - - 0 1
Description: King and pawn vs king
Opposite Color Bishops
File: opposite-bishops.fen
8/5k2/8/3b4/8/8/3B4/5K2 w - - 0 1
Description: Bishops on opposite colors (often drawn)
Edge Cases
Three-Fold Repetition Setup
File: threefold-setup.fen
r1bqkb1r/pppp1ppp/2n2n2/1B2p3/4P3/5N2/PPPP1PPP/RNBQK2R w KQkq - 4 4
Description: Position for testing threefold repetition
Fifty-Move Rule
File: fifty-move-rule.fen
8/8/8/8/8/3k4/3Q4/3K4 w - - 99 100
Description: Near fifty-move rule threshold
Insufficient Material (KB vs K)
File: insufficient-kb-vs-k.fen
8/8/8/8/8/3k4/3B4/3K4 w - - 0 1
Description: Draw due to insufficient material
Insufficient Material (KN vs K)
File: insufficient-kn-vs-k.fen
8/8/8/8/8/3k4/3N4/3K4 w - - 0 1
Description: Draw due to insufficient material
Famous Game Positions
Immortal Game (Anderssen vs Kieseritzky, 1851)
File: immortal-game-final.fen
r1b1kb1r/p2pqppp/5n2/1p2p3/2B1P3/1Q6/PPPPNPPP/RNB1K2R w KQkq - 0 1
Description: Position before the famous sacrifice
Opera Game (Morphy vs Duke of Brunswick, 1858)
File: opera-game-final.fen
2kr4/ppp2pp1/4p3/4b3/2B5/2P2Q2/P4PPP/2KR4 b - - 0 1
Description: Famous tactical position
Test-Specific Positions
All Pieces Present
File: all-pieces.fen
rnbqkbnr/pppppppp/8/8/8/8/PPPPPPPP/RNBQKBNR w KQkq - 0 1
Description: For testing piece rendering
Empty Board (only kings)
File: empty-board.fen
4k3/8/8/8/8/8/8/4K3 w - - 0 1
Description: Minimal valid position
Maximum Pieces
File: max-pieces.fen
rnbqkbnr/pppppppp/8/8/8/8/PPPPPPPP/RNBQKBNR w KQkq - 0 1
Description: All 32 pieces on board
Piece Movement Tests
File: piece-movement-test.fen
8/8/8/3p1p2/2pNPp2/3p1p2/8/8 w - - 0 1
Description: Knight surrounded by enemy pawns
Usage in Tests
import { loadFEN } from '../utils/fixtures';
test('Fool\'s Mate detection', () => {
const position = loadFEN('fools-mate');
const chess = new Chess(position);
expect(chess.isCheckmate()).toBe(true);
});
Adding New Positions
- Create a new
.fenfile - Validate FEN using chess.js or online validator
- Add description to this README
- Create corresponding test cases
- Document expected behavior
FEN Validation
To validate FEN strings:
import { Chess } from 'chess.js';
const isValidFEN = (fen) => {
try {
const chess = new Chess(fen);
return chess.fen() === fen;
} catch {
return false;
}
};
Resources
- FEN Notation: https://en.wikipedia.org/wiki/Forsyth%E2%80%93Edwards_Notation
- Chess.js Library: https://github.com/jhlywa/chess.js
- FEN Validator: https://www.chess.com/analysis