カサネ

Kasane
A 9x9 board strategy game where players stack pieces. An abstract two-player zero-sum game that adds a three-dimensional "tier" mechanic to Shogi and Chess. The goal is to capture the opponent's "Marshal." Includes CPU opponent modes (easy/normal/hard) and introductory/beginner rules.
An abstract board-strategy game with a vertical "tier" mechanic on a 9x9 board. Capture the opponent's Marshal to win. Single-player vs CPU.
Features
- Tier (Tsuke): Pieces can be stacked up to two levels high. Taller pieces have increased range, allowing you to control the opponent from above.
- 14 types of pieces: Each has unique movement. Pieces become stronger as the tier increases. Movement follows the rules of the official 'Gungi' (2022).
- CPU opponent mode: Negamax + αβ search. Three difficulty levels. - In-app guide: Illustrated explanations of piece and rank-by-rank movement.
Development
bash<br>flutter pub get<br>flutter analyze # zero errors<br>flutter test # engine/AI/official movement regression test<br>flutter run # execution<br>
Configuration
- Common foundation (AdMob/IAP/Firebase/Riverpod/go_router) = derived from flutter_app_template.
- Game-specific code = lib/features/game/ (engine / ai / state / ui / screens).
- Design details in CLAUDE.md, release procedure in SETUP.md.
License / Note
This app is an original work based on the official rules of "Gungi" (HUNTER×HUNTER) and is unrelated to the original work or official merchandise. "Kasane" is an original game inspired by published abstract-strategy rules and is not affiliated with any manga or its publisher.

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