Sliding tile puzzle · The rune tray Alchemy Slide.
Slide the rune tiles into order, 1 to the last, with the empty slot bottom-right.
Polishing the rune tiles…
Slide the rune tiles into order, 1 to the last, with the empty slot bottom-right.
Polishing the rune tiles…
A sliding puzzle is a tray of numbered tiles with one empty slot. Only a tile next to the slot can move into it, so you rearrange the board by sliding tiles one at a time until they read 1 to the last number in order. Here the tiles are alchemy rune stones; the 3×3 board is the 8 puzzle, 4×4 is the classic 15 puzzle and 5×5 is the 24 puzzle.
Work row by row from the top. Place the first tiles of a row directly, then bring the last two in together: park the last tile where the second-to-last belongs, put that tile under it, and rotate both into place. When two rows remain, solve them one column at a time from the left. The final three tiles cycle around the last 2×2 square.
Yes. Half of all tile arrangements cannot be solved, so each shuffle is checked with the parity rule before you see it. Your moves, time and best scores for each size stay in this browser.
For the full method, read the Alchemy Slide guide. Stuck on a 3×3 or 4×4 board? Open it in the Sliding Puzzle Solver to see the fewest moves from where you are.