CubeMate

Think in three dimensions.
CubeMate puts a chess position on every face of a Rubik's Cube. Twisting one layer changes six boards at once. Your goal is simple to state and hard to do: rotate until every face satisfies the challenge.
Five challenges
Check Everywhere – put the opponent's king in check on all six faces.

Checkmate Everywhere – deliver mate on every face.

Advantage Everywhere – hold a material edge on each face.

Equal Position Everywhere – balance the material on each face.

Standard Rubik's Cube – no chess, one piece type and colour per face.

Campaign: a tree of 34 levels
Start on a 2×2 and climb to a 7×7. The campaign is a tree, not a list: finish levels to open the ones that branch off them, and see the whole map from the start. Six regions, one per cube size: 5 levels on 2×2, 6 on 3×3, 5 on 4×4, 6 on 5×5, 6 on 6×6 and 6 on 7×7. Pieces are fixed on their cubies, so the same twist that solves one face can break another. Locked levels are open to preview, so you always know what is coming.
Free Play: your rules
Any cube from 2×2 to 7×7, any of the five challenges. A size opens in Free Play once you finish its first campaign level (2×2 is open from the start).

Pick your side: white, black or random.

Seeds – every puzzle has a short code. Copy it, send it, race a friend on the same cube.

Daily – one seed per day, the same cube for everyone, with your personal best saved.

Quick Play – one click, random everything.

Made for puzzle people
Chess puzzlers, cubers and anyone who likes a clean "aha" moment. No chess mastery needed: the game tells you which faces are solved and glows when you get there. Move counter, undo, light and dark themes, 15 Steam achievements, progress saved to Steam Cloud, English and Polish.
Controls
Mouse, keyboard or controller, with on-screen button glyphs. Windows.
Free demo
The 2×2 and 3×3 sizes, no time limit. On the same PC, your progress carries over when you buy the full game.
Built by one developer in Godot 4. Feedback welcome on Discord.