XC Master - AI XCross Trainer

XC Master is a professional 3x3 Cross, XCross, and lookahead training tool — an upgraded C2F2L practice experience.

Powerful solution training:
- Provides optimal Cross solutions.
- Provides XCross, XXCross, 3XCross, and 4XCross solutions averaging 7, 9, 11, and 13 moves.
- Supports all six cross colors, from Cross to 3XCross / 4XCross solving.
- Practice with real WCA competition scrambles.
- AI solution analysis helps you understand ideas and find improvements.

New practice modes:
- Timed Practice: record times, stats, groups, and detailed history.
- Lookahead Practice: train prediction with success rate, attempts, and failure reasons.
- Practice records support cloud sync across devices.
- Normal, Timed, and Lookahead modes stay independent.

Step-based Cross training:
- Choose any cross color and target move count.
- Start simple and improve step by step.

Smart annotations and useful tools:
- Highlights completed F2L pairs to make solutions and lookahead targets easier to understand.
- Built-in scramble image and 3D scramble demo.
- Supports sharing, history, and cloud favorites.