Title: Chess Tactics Board
Prompt: A walnut-and-brass tactics trainer with a playable board, four puzzles, clocks, and engine chatter. Let players move pieces, reveal hints, flip the board, and track evaluations. It should feel like a club room — brass and felt on espresso dark.
Design: A club-room split joins a walnut-framed 8×8 board with checkered felt squares, selection lifts, hint and capture rings, and last-move tinting to a rail of puzzle cards, evaluation bar, dual clocks, move list, and engine analysis. Correct moves shift the bar live.
Visual techniques:
- Checkered board with walnut frame and last-move tint
- Hint dots, capture rings, and lifted selection animation
- Evaluation bar and ticking dual clocks
- Pulsing turn indicator and card entrance motion
- Walnut-gold-felt on espresso palette
Interaction model: Users select and move pieces, load puzzles, reveal knight-fork hints, flip and reset the board, toggle best lines, run deep evaluations, and watch moves, clocks, evaluations, and coaching notes update with every touch.