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Casual Puzzle

Sliding Puzzle

The classic 15-puzzle. Slide tiles to reassemble a random savanna animal — fewer moves and faster solves score higher.

Provider DreamPlay.Africa

Platform Mobile Desktop

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Free to play. Members play ad-free.

Sliding Puzzle 4×4

the classic 15-puzzle, sliced from a random savanna animal portrait.

Objective

Restore a scrambled 4×4 image by sliding tiles into order. Numbers must read 1 through 15 with the empty slot in the bottom-right corner, which completes the picture.

Controls

On your phone

Tap any tile sharing a row or column with the empty slot — every tile between your tap and the gap slides over.

On desktop

Click a tile in the empty slot's row or column to shift the whole strip.

Scoring

Formula(300 − moves) × 100 + (300s − seconds) × 50

Efficient solve~60 moves, 30s → ~37,500

Sloppy solve200 moves, 3 min → ~16,000

Move costEvery tile shifted counts as 1 move

Tips

1Solve the top row and left column first, then treat the remaining puzzle as a smaller 3×3 — this is the textbook technique.

2Multi-tile slides are faster on the clock but cost more moves; balance them depending on which budget you're closer to busting.

3The faint number on each tile fades when you win, so trust the numbers — the image lines up on its own.

Sliding Puzzle — 4×4 rewards both efficiency (few moves) and speed (low time). Each “budget” pays out separately.

How the score is calculated

You have a move budget of 300 and a time budget of 300 seconds. Every move you don’t use earns 100 points; every second you don’t use earns 50 points. Whichever budget you blow first stops contributing to your score.

score = max(0, 300 − moves) × 100 + max(0, 300 − seconds) × 50

Move budget300 moves · 100 points each unused

Time budget300 seconds · 50 points each unused

Per-budget capMoves 30,000 + time 15,000 = 45,000 in-game

Maximum50,000 (server-enforced sanity cap)

Worked examples

1Solve in 80 moves over 2 min → (220×100) + (180×50) = 22,000 + 9,000 = 31,000

2Solve in 150 moves over 5 min → (150×100) + (0×50) = 15,000

3Solve in 300+ moves or over 5 min → that budget zeros out

What ends the round

The round ends the moment the tiles snap into the correct order. There’s no “loss” state — if both budgets hit zero you can still finish, you’ll just submit 0.

Strategy A move is worth twice a second (100 vs 50). If you can solve in two minutes flat with patient solving, that beats a panic-tap rush that doubles the move count.

Sliding Puzzle

How It Works

Objective

Controls

On your phone

On desktop

Scoring

Tips

Scoring

How the score is calculated

Worked examples

What ends the round