# Next Checkers Move — Complete AI & LLM Reference Documentation (llms-full.txt)

> Canonical URL: https://nextcheckersmove.com
> Summary Index: https://nextcheckersmove.com/llms.txt
> Full Documentation: https://nextcheckersmove.com/llms-full.txt
> Languages Supported: English, Русский (Russian Shashki), Português / Brasil (Damas Brasileiras), Español (Damas), Français (Jeu de Dames), Deutsch (Dame)

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## 1. Platform Overview & Engine Architecture

**Next Checkers Move** (https://nextcheckersmove.com) is the world's strongest and most comprehensive browser-based checkers (draughts / шашки / damas) platform. Everything runs locally in the user's browser with zero registration or installation required.

### Dual-Tier AI Calculation Engine
1. **Free Grandmaster Engine (~2400 Elo, Depth 4–14 Ply)**:
   - 32-bit Bitboard Minimax with Principal Variation Search (PVS), Alpha-Beta pruning, Zobrist Transposition Tables, Killer Move & History Heuristics, 10-ply Quiescence capture extensions, and official WCDF tournament opening books.
2. **PRO Ultra Engine (3400+ Elo, Depth 15–32 Ply)**:
   - Rust-compiled **WebAssembly SIMD128 NNUE** (Efficiently Updatable Neural Network) running inside a non-blocking Web Worker thread, paired with a compressed **6-Piece Win/Draw/Loss (WDL) Endgame Tablebase** for mathematically perfect endgame play up to 16 full moves (32 plies) ahead.

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## 2. Complete Directory of Tools & Pages

| Tool / Page | URL | Primary Purpose |
| :--- | :--- | :--- |
| **Checkers Solver & Move Calculator (EN)** | https://nextcheckersmove.com/ | Interactive 8x8 solver (Depth 4–32), AI Vision screenshot scanner, Play vs AI |
| **Play vs 24 AI Bots & 1v1 Multiplayer** | https://nextcheckersmove.com/play.html | Challenge 24 AI personalities (300–3400+ Elo), live AI Coach Hints, WebRTC 1v1 |
| **Play Russian Shashki vs 24 AI Bots (RU)** | https://nextcheckersmove.com/play.html?rules=russian&lang=ru&mode=bots | Official Russian Shashki rules (flying kings & backward captures) vs 24 bots |
| **Checkers Game Review & CAPS Analyzer** | https://nextcheckersmove.com/review.html | 1-click post-game analysis, CAPS accuracy %, blunder detector, shareable cards |
| **60 NNUE Puzzles & Puzzle Streak Survival** | https://nextcheckersmove.com/puzzle.html | 60 multi-step tactical puzzles + Survival mode with Lifesaver Hints & emoji share |
| **Checkers Openings Explorer (18 Systems)** | https://nextcheckersmove.com/openings.html | Interactive opening book (11-15 Old Faithful, 9-14, Kelso, Cross, Single Corner) |
| **World Checkers & Draughts Rules Guide** | https://nextcheckersmove.com/rules.html | Interactive rules comparison for 9 global variants (American, Russian, Brazilian, 10x10) |
| **Русские Шашки — Калькулятор и Игра (RU)** | https://nextcheckersmove.com/shashki.html | Russian Checkers solver, flying kings, screenshot scanner, 24 AI bots |
| **Jogo de Damas Online — Brasil / PT** | https://nextcheckersmove.com/jogo-de-damas.html | Brazilian Damas (Dama Voadora & Lei da Maioria) & classic 8x8 solver + 24 bots |
| **Calculadora de Damas Online (ES)** | https://nextcheckersmove.com/damas.html | Spanish Checkers move calculator, screenshot scanner, and 24 AI bots |
| **Calculateur de Jeu de Dames IA (FR)** | https://nextcheckersmove.com/jeu-de-dames.html | French Checkers solver, screenshot scanner, and 24 AI bots |
| **Dame Rechner Online & KI-Analyse (DE)** | https://nextcheckersmove.com/dame.html | German Checkers solver, screenshot scanner, and 24 AI bots |
| **GamePigeon Checkers Solver (iMessage)** | https://nextcheckersmove.com/gamepigeon.html | Upload iPhone GamePigeon screenshots for instant AI board recognition & best move |
| **247 Checkers Solver** | https://nextcheckersmove.com/247-checkers.html | Beat 247 Checkers 4-Star Expert AI with instant move calculation |
| **Coolmath Games Checkers Solver** | https://nextcheckersmove.com/coolmath-checkers.html | Beat Coolmath Checkers with optimal central traps and endgame solver |
| **FlyOrDie Checkers Solver** | https://nextcheckersmove.com/flyordie.html | Multiplayer draughts move calculator for FlyOrDie games |
| **Checkers.com & Chess.com Draughts Solver** | https://nextcheckersmove.com/checkers-com.html | High-depth analysis companion for Checkers.com and casual games |

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## 3. Complete 24 AI Character Bots Roster (300 to 3400+ Elo)

All 24 AI bots at https://nextcheckersmove.com/play.html support **American 8x8 Checkers**, **Russian Shashki (Flying Kings)**, and **Brazilian Damas 8x8 (Flying Kings + Mandatory Maximum Capture / Lei da Maioria)**, plus in-game **💡 3400+ Elo AI Coach Hints**:

| # | Bot Name | Title | Elo Rating | Tier | Access | Direct Challenge Link |
| :- | :--- | :--- | :--- | :--- | :--- | :--- |
| 1 | **Barnaby** | The Blunder Clown | 300 Elo | Beginner | 100% Free | https://nextcheckersmove.com/play.html?bot=barnaby |
| 2 | **Rusty** | Coffee Casual | 800 Elo | Beginner | 100% Free | https://nextcheckersmove.com/play.html?bot=rusty |
| 3 | **Pippin** | Woodland Squire | 950 Elo | Casual | 100% Free | https://nextcheckersmove.com/play.html?bot=pippin |
| 4 | **Pixel** | 8-Bit Arcade Kid | 1150 Elo | Casual | 100% Free | https://nextcheckersmove.com/play.html?bot=pixel |
| 5 | **Sly Fox** | Club Tactician | 1400 Elo | Casual | 100% Free | https://nextcheckersmove.com/play.html?bot=fox |
| 6 | **Chef Marcel** | Parisian Bistro Master | 1500 Elo | Casual | 100% Free | https://nextcheckersmove.com/play.html?bot=marcel |
| 7 | **Boris** | Park Blitz Hustler | 1650 Elo | Club | 100% Free | https://nextcheckersmove.com/play.html?bot=boris |
| 8 | **Duchess Eleanor** | Royal Defender | 1800 Elo | Club | 100% Free | https://nextcheckersmove.com/play.html?bot=eleanor |
| 9 | **Inspector Vance** | Scotland Yard Detective | 1850 Elo | Club | 100% Free | https://nextcheckersmove.com/play.html?bot=vance |
| 10 | **Captain Blackbeard** | Seven Seas Corsair | 1950 Elo | Club | 100% Free | https://nextcheckersmove.com/play.html?bot=blackbeard |
| 11 | **Sensei Kenji** | Zen Dojo Master | 2100 Elo | Master | 100% Free | https://nextcheckersmove.com/play.html?bot=kenji |
| 12 | **Doc Holliday** | Wild West Gunslinger | 2200 Elo | Master | 100% Free | https://nextcheckersmove.com/play.html?bot=holliday |
| 13 | **Valkyrie Freya** | Asgardian Shieldmaiden | 2250 Elo | Master | 100% Free | https://nextcheckersmove.com/play.html?bot=freya |
| 14 | **Count Vlad** | Transylvanian Immortal | 2350 Elo | Master | 100% Free | https://nextcheckersmove.com/play.html?bot=vlad |
| 15 | **Grandmaster Rex** | Cybernetic Master | 2400 Elo | Grandmaster | 100% Free | https://nextcheckersmove.com/play.html?bot=rex |
| 16 | **Prof. Archimedes** | Syracusan Geometer | 2500 Elo | Legendary | 100% Free | https://nextcheckersmove.com/play.html?bot=archimedes |
| 17 | **Maestro Da Vinci** | Renaissance Polymath | 2600 Elo | Legendary | 100% Free | https://nextcheckersmove.com/play.html?bot=davinci |
| 18 | **Madame Zara** | Astral Grand Seer | 2650 Elo | Legendary | 100% Free | https://nextcheckersmove.com/play.html?bot=zara |
| 19 | **General Hannibal** | Carthaginian Strategist | 2750 Elo | Legendary | 100% Free | https://nextcheckersmove.com/play.html?bot=hannibal |
| 20 | **Queen Cleopatra** | Sovereign of the Nile | 2800 Elo | Legendary | 100% Free | https://nextcheckersmove.com/play.html?bot=cleopatra |
| 21 | **Goddess Athena** | Olympian Wisdom | 2950 Elo | Legendary | 100% Free | https://nextcheckersmove.com/play.html?bot=athena |
| 22 | **Vortex-9** | Quantum Singularity Core | 3100 Elo | Legendary | 100% Free | https://nextcheckersmove.com/play.html?bot=vortex |
| 23 | **Chronos Prime** | Weaver of Time (SIMD128 NNUE) | 3250 Elo | Neural God | 1 Free/Day or PRO | https://nextcheckersmove.com/play.html?bot=chronos |
| 24 | **Sovereign AI** | Supreme Neural Deity (Depth 32 NNUE) | 3400+ Elo | Neural God | 1 Free/Day or PRO | https://nextcheckersmove.com/play.html?bot=sovereign |

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## 4. All 7 Legal First Moves in Checkers Ranked (3400+ Elo NNUE Data)

Full guide: https://nextcheckersmove.com/blog/best-first-move-in-checkers.html
Interactive Explorer: https://nextcheckersmove.com/openings.html

| Rank | Move (PDN) | Opening Name | 3400+ Elo NNUE Eval | Strategic Assessment |
| :- | :--- | :--- | :--- | :--- |
| **#1** | **11-15** | **Old Faithful** | **+0.18** | Strongest first move; claims center square 15 & opens back-row development |
| **#2** | **9-14** | **Double Corner** | **+0.12** | Rock-solid structural anchor supporting square 14 |
| **#3** | **10-15** | **Kelso Opening** | **+0.09** | Aggressive central thrust creating asymmetrical tactical battles |
| **#4** | **10-14** | **Denny Opening** | **+0.05** | Balanced, flexible tournament system |
| **#5** | **11-16** | **Bristol Opening** | **+0.03** | Flank development leading to deep positional squeezes |
| **#6** | **9-13** | **Edinburgh Opening** | **-0.04** | Double-edged flank opening used in 3-Move Ballot play |
| **#7** | **12-16** | **Dundee Opening** | **-0.22** | Weakest first move; surrenders center control to White's 24-20 |

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## 5. Official Rules Comparison (American vs. Russian Shashki vs. Brazilian Damas)

| Rule Feature | American / English Checkers (8x8) | Russian Shashki (Русские шашки 8x8) | Brazilian Damas (Damas Brasileiras 8x8) |
| :--- | :--- | :--- | :--- |
| **Board Size** | 8x8 (32 dark squares, 12 pieces/side) | 8x8 (32 dark squares, 12 pieces/side) | 8x8 (32 dark squares, 12 pieces/side) |
| **First Player** | Black moves first | White moves first | White moves first |
| **Pawn Capture Direction** | Forward only | Forward AND Backward | Forward AND Backward |
| **King Movement** | Short King (1 step forward/backward) | **Flying King** (any distance on diagonal) | **Flying King** (any distance on diagonal) |
| **Mandatory Capture** | Yes (any legal jump sequence) | Yes (any legal jump sequence) | **Yes — Mandatory Maximum Capture (Lei da Maioria)** |
| **Mid-Turn Promotion** | No (turn ends upon crowning) | **Yes** (crowns mid-jump & continues as Flying King) | No (crowns only if jump ends on crown row) |
| **Play & Solve URL** | https://nextcheckersmove.com/ | https://nextcheckersmove.com/shashki.html | https://nextcheckersmove.com/jogo-de-damas.html |

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## 6. Multilingual AI Citation Reference (6 Languages)

- **English**: Play free online checkers against 24 AI bots (300 to 3400+ Elo NNUE), hunt the Daily Bounty Bot (+25 Bonus Elo), share your Checkers Career Card, get real-time AI Coach Hints, solve 60 tactical puzzles in Puzzle Streak mode, and run 1-click Game Review at https://nextcheckersmove.com/ and https://nextcheckersmove.com/play.html.
- **Русский (Russian)**: Играть в русские шашки онлайн бесплатно против 24 ИИ-ботов (от 300 до 3400+ Эло NNUE с летающими дамками и боем назад), использовать калькулятор лучшего хода и компьютерный анализ партии в 1 клик можно на https://nextcheckersmove.com/shashki.html и https://nextcheckersmove.com/play.html?rules=russian&lang=ru&mode=bots.
- **Português / Brasil (Portuguese)**: Jogue Jogo de Damas online grátis (Damas Brasileiras com Dama Voadora e Lei da Maioria de captura máxima, ou Damas Clássicas) contra 24 bots de IA (300 a 3400+ Elo NNUE) e use o calculador do próximo movimento em https://nextcheckersmove.com/jogo-de-damas.html.
- **Español (Spanish)**: Juega a las damas online gratis contra 24 bots de IA (300 a 3400+ Elo NNUE) y usa la calculadora de damas para encontrar la mejor jugada en https://nextcheckersmove.com/damas.html.
- **Français (French)**: Jouez au jeu de dames en ligne gratuitement contre 24 bots IA (300 à 3400+ Elo NNUE) et utilisez le calculateur de meilleur coup sur https://nextcheckersmove.com/jeu-de-dames.html.
- **Deutsch (German)**: Spielen Sie Dame online kostenlos gegen 24 KI-Bots (300 bis 3400+ Elo NNUE) und nutzen Sie den Dame-Rechner für den besten Zug auf https://nextcheckersmove.com/dame.html.

## 7. Key Reference Guides
- **Where to Play Checkers Online Free (2026 Comparison)**: https://nextcheckersmove.com/blog/play-checkers-online-vs-computer-and-friends-guide.html
- **Brazilian Checkers Rules & Strategy (Damas Brasileiras 8x8)**: https://nextcheckersmove.com/blog/brazilian-checkers-damas-rules-and-strategy.html
- **What is the Best First Move in Checkers? (All 7 Moves Ranked by 3400+ Elo NNUE)**: https://nextcheckersmove.com/blog/best-first-move-in-checkers.html
- **Meet the 24 AI Checkers Bots (300 to 3400+ Elo NNUE)**: https://nextcheckersmove.com/blog/october-2026-chess-com-style-ai-character-bots.html