OpeningMatrix Part of ChessTropic
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King and pawn

King opposition

Learn the technique, practise without help, then time trial. 8 lines ready on the board.

8 lines As White Learn Practice Time trial

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Starting moves

1. Kd2 Ke7 2. Ke3 Ke6 3. Ke4 Kd6 4. Kf5 Ke7 5. Ke5 Kd7 6. Kf6 Ke8

Lines in this drill

  • Main: take the opposition
  • Main: Black tries …Kf6
  • Black goes to d6 early
  • Black retreats …Kd8
  • Black retreats …Kf8
  • Mirror: Kf2 and opposition
  • Mirror after …Kf7
  • Mirror after …Kd8

Ideas from the drill

  • King first — not the pawn. Early e3/e4 only draws if Black holds correctly.
  • Opposition: kings face each other and it is Black’s move.
  • Outflank — Black gave way, so shoulder him off the e-file.

Continue on the board

Sign in free to train this endgame. Guests can try King and rook mate and King and queen mate without an account.

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Release notes

What's new

Shipping history for ChessTropic, newest first. Open this anytime from the rail.

  1. v1.3 Latest

    Sparring bots, Puzzle Rush, and Coach Credits — train against style, then race the clock.

    • added Sparring: Free training games against styled bots for every signed-in member — no coaching lecture.
    • added Puzzle Rush: Solve against the clock — 3:00 and 3 lives — with its own all-time leaderboard.
    • added Coach Credits: Free members get a monthly allotment; Unlimited gets 100. Buy a one-time pack of 100 anytime.
    • improved Leaderboards: Daily, weekly, and all-time Practice boards now sit beside puzzle rating and Puzzle Rush.
    • improved Homepage: Clearer feature tour for Game Review, Blunder Override, Puzzles, AI Coach, and Sparring.
  2. v1.2

    AI Coach arrives, alongside Member Directory, Achievements, and a sharper ChessTropic shell.

    • added AI Coach: Play the Cyber Chameleon with live move notes, post-game debriefs, and follow-up chat.
    • added Member Directory: Browse public profiles and see who else is training.
    • added Achievements: Earn badges for practice streaks, puzzles, and milestones.
    • added Public profiles: Share a page for your practice stats, puzzle rating, and badges.
    • improved OpeningMatrix handoff: Opening trainer, Endgames Vault, Repertoire, and Community Courses open on OpeningMatrix when you need study tools.
    • fixed Safari: Board and shell layout fixes for Safari on macOS and iOS.
  3. v1.1

    Report, Blunder Override, and Game Review — tools that help you understand your own play.

    • added Report: Track your Chess.com and Lichess ratings, and see which openings you play most.
    • added Blunder Override: Replay past games and walk through the exact moments you threw away a win.
    • added Game Review: Import games from Chess.com, Lichess, or a PGN for a move-by-move engine breakdown.
  4. v1.0

    The first build: opening trainer, Endgames Vault, progress tracking, repertoire builder, community courses, and live puzzles.

    • added Opening Trainer: Drill 100+ official starter courses with Learn, Practice, and Time Trial.
    • added Endgames Vault: King opposition, Lucena, Philidor, king and rook mate, and king and queen mate.
    • added Progress tracking: Personal learning progress, puzzle ratings, and daily practice streaks.
    • added Repertoire Builder: Build and drill your own opening courses as White or Black.
    • added Community Courses: Publish a course to share with other players.
    • added Live Puzzles: An all-time rating leaderboard that updates as you solve.

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