Tallyforge: Arithmetic Puzzle

An arithmetic puzzle in a forge: combine four number ingots with + − × ÷ to hit the target. 30 solver-checked puzzles in five tiers up to fractions, a daily forge and a timed rush. Free, no ads, no tracking.

Tallyforge is the 24 game in a blacksmith's forge. Pick two number ingots and an operator, and they melt into one new ingot. Keep combining until the last ingot matches the number in the mould.

Every puzzle is built by a generator and checked by a solver, so there is always a way. Later tiers need multiplication, division and finally fractions in the middle of the calculation.

• 5 tiers, 30 puzzles: Copper (+ and −), Bronze (with ×), Iron (forge 24), Steel (bigger numbers) and Mithril (a fraction on the way)
• Three hints per tier: each shows the next step from where you are
• Daily forge: five puzzles, one from each tier, the same for everyone each day
• Rush mode: a shrinking clock per puzzle and three lives
• Exact fractions: 1/9 stays 1/9, so 8 ÷ (3 − 8 ÷ 3) = 24 works
• Undo and reset: try ideas freely; progress and bests are saved

Code and text written with AI assistance; checked by PN Scripts with automated tests. Every shape is drawn and every sound synthesised by code; there are no AI-generated image or audio files.

Controls

• 1-4: pick an ingot
• + - * / (or = and x): choose an operator, then pick the second ingot
• Backspace: undo, R: reset the puzzle, H: hint
• Rush mode: S skips a puzzle for a life
• Tap ingots, operators and the Undo, Reset and Hint buttons
• P / Esc: pause, M: sound

Made by PN Scripts.