Dataset Viewer
Auto-converted to Parquet Duplicate
id
string
family
string
size
string
dim
int8
num_nodes
int32
num_edges
int32
num_checkpoints
int32
density
string
coords
list
edges
list
checkpoints
list
solution
list
walls
list
bridges
list
island
list
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solver_nodes
int64
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float32
seed
int64
split
string
layout
string
arcs
list
precedence
list
extras
string
checkpoints2
list
solution2
list
unique
bool
rating_score
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string
e8c431a47c8ec4e7
coop
5x5
2
25
40
8
default
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null
null
59f66fc9820f66aa
coop
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[]
null
solved
24
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null
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null
null
null
c3d4853f75bd3666
coop
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10
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null
null
c3ad1b94b136d2a6
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24
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null
[ 14, 13 ]
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null
null
null
c2a450177b45caee
coop
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30
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[]
null
solved
20
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null
[ 13, 7, 9 ]
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null
null
null
d532d91dc8faa669
coop
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25
40
5
sparse
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[ 14, 10 ]
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[]
[]
null
solved
25
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[]
null
[ 3, 8, 6 ]
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null
null
null
84323928e0d48a3c
coop
5x5
2
25
40
8
default
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[]
null
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24
0.795
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null
[ 6, 5, 9, 11 ]
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null
null
null
66327e065cf777ac
coop
7x7
2
39
62
7
sparse
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[]
[]
null
solved
37
2.062
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[]
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null
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null
null
null
7026d470cc275de1
coop
7x7
2
49
75
10
default
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null
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57
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null
[ 24, 23, 34, 41, 32 ]
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null
null
9f11f1b3df8db002
coop
7x7
2
49
75
5
sparse
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null
solved
50
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null
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null
null
null
dfa56877f3002dc1
coop
7x7
2
49
84
9
default
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[]
null
solved
49
2.681
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square
[]
[]
null
[ 23, 7, 12, 16 ]
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null
null
null
26f394ee5d40d80f
coop
7x7
2
49
120
9
default
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[ 33, 13, 11 ]
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[]
null
solved
171
8.58
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train
hex
[]
[]
null
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null
null
null
57f8302ea0cd6184
coop
7x7
2
49
84
5
sparse
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[]
null
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53
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null
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null
null
00add0e119c6b6b8
coop
7x7
2
49
84
9
default
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null
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275
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null
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null
null
c702e886141ed5b0
coop
7x7
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49
120
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null
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60
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null
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null
null
59935f978c5f1b83
coop
7x7
2
49
120
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null
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49
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null
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null
null
616e06b302e94c19
coop
7x7
2
49
84
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null
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515
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null
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null
null
5401d9eba65f673b
coop
7x7
2
49
84
18
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null
solved
56
3.28
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null
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null
null
9feb65be5be57533
coop
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null
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105
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null
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null
null
8b142fa85e858d0d
coop
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[]
null
solved
744
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null
5fbda64c7b397faa
coop
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[]
null
solved
49
2.768
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null
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null
null
b0c95af2a0e1ebb7
coop
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2
36
85
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null
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47
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22c20aa5bc739a1c
coop
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End of preview. Expand in Data Studio

Zip Puzzles on Graphs

20,000,000 solvable puzzles in the style of LinkedIn's Zip game — draw one path that visits every cell exactly once, passing the numbered checkpoints in order — generalised from the square grid to 16 puzzle types: walls, irregular shapes, islands joined by bridges, 3D cubes, 4D hypercubes, portals, wraparound boards, hex and triangle boards, one-way arrows, overpasses, keys & doors, cube surfaces and two-path co-op. Every puzzle comes with a verified solution and a difficulty signal from an exact solver.

Plus a unique config: 200,000 puzzles proven to have exactly one solution, each with a human-style difficulty rating (Easy → Insane) — the "real game" kind.

Generated with ThVerg/AiZipSolve (scripts/build_hf_dataset.py, parts merged with scripts/merge_hf_dataset.py), which also contains the game (playable online), the exact solver and a GNN agent.

from datasets import load_dataset

ds = load_dataset("FAVERG/zip-puzzles")                   # all 20M puzzles
portals = load_dataset("FAVERG/zip-puzzles", "portals")   # one puzzle type
unique = load_dataset("FAVERG/zip-puzzles", "unique")     # 200k unique-solution, human-rated

Puzzle types

config sizes what it is main unique
grid2d 4×4 … 12×12 classic square grid 3,123,553 21,760
walls 5×5 … 12×12 grid with blocked edges 1,498,029 15,228
mask 6×6 … 12×12 box irregular connected shape 1,199,689 13,110
islands 2 … 8 islands organic islands, the path crosses back and forth, decoy bridges 1,493,003 15,217
islands_chain 2 … 4 islands rectangular islands in a chain, one bridge each 351,219 6,580
grid3d 3³ … 6³ 3D cube 1,491,405 10,894
grid4d 2⁴ … 4⁴ 4D hypercube 843,102 5,126
portals 5×5 … 12×12 grid + portal pairs (an edge between two far cells) 1,243,381 13,020
torus 4×4 … 10×10 wraparound grid: leaving one edge enters the opposite one 1,109,943 13,124
hex side 3 … 7 hexagonal board (layout = hex, axial coords) 1,109,572 12,990
tri side 2 … 6 triangle board (layout = tri) 972,526 12,101
oneway 5×5 … 12×12 grid + one-way arrows (arcs) 1,123,513 13,039
overpass 5×5 … 12×12 bridge cells crossed twice: once across, once along (two nodes, same coords) 1,125,560 13,039
keys 5×5 … 12×12 keys & doors: a door may only be entered after its key (precedence) 1,098,907 13,080
cubesurf 2³ … 5³ the six faces of a cube, 3D coords 1,117,342 10,835
coop 4×4 … 10×10 two paths that together cover every cell (checkpoints2, solution2) 1,099,256 10,857

density is sparse / default / dense (≈0.6× / 1× / 1.6× the default number of checkpoints, which grows like 1.4·√n). Unique-subset ratings: Easy 69,368 · Medium 47,918 · Hard 40,841 · Expert 26,946 · Insane 14,927.

Schema

Every puzzle is a graph: nodes 0..num_nodes-1, positions in coords, adjacency in edges. A valid solution is a Hamiltonian path over edges that starts at checkpoints[0], ends at checkpoints[-1] and visits the checkpoints in order (checkpoint i is the number i+1), never uses a one-way edge in arcs backwards, and visits each precedence pair's first node before its second.

column type description
id string content hash of the puzzle (graph, checkpoints, and arcs / precedence / second path when present)
family string puzzle type (see table)
size string e.g. 7x7, 4x4x4, 5 islands, hexagon side 4
dim int8 dimension of coords (2, 3 or 4)
num_nodes, num_edges, num_checkpoints int32 (co-op: checkpoints of both paths)
density string checkpoint density bucket
coords list[list[int16]] integer position of every node
edges list[[int32, int32]] undirected edges — every traversable connection (walls are missing edges; bridges, portals and wraps are included)
checkpoints list[int32] node ids of the numbers 1, 2, 3, … (co-op: path 1)
solution list[int32] one valid path (co-op: path 1)
walls list[[int32, int32]] for walls: grid-adjacent pairs that are blocked
bridges list[[int32, int32]] for islands: edges between islands (some are decoys)
island list[int16] or null island index of every node
layout string square, hex or tri
arcs list[[int32, int32]] one-way edges: [u, v] may only be traversed u → v
precedence list[[int32, int32]] [a, b]: a must be visited before b (key before door)
extras string (JSON) or null type-specific details: portals, torus/wrap_edges, overpass nodes, keys, cube face, island_layout
checkpoints2, solution2 list[int32] or null co-op: the second path's checkpoints and solution
solver_status string exact solver within 1 s: solved or timeout (every puzzle is solvable)
solver_nodes int64 search nodes the exact solver expanded — a difficulty signal
solver_ms float32 solver wall time
unique bool or null true in the unique config (exactly one solution, proven)
rating_score, rating_label float32, string human-style difficulty 0–100 and Easy … Insane (unique config)
seed int64 generator seed
split string train / validation / test

In the main configs solutions are not necessarily unique: any path satisfying the rules is correct.

Checking a solution

def is_valid(row, path):
    n = row["num_nodes"]
    adj = {tuple(sorted(e)) for e in row["edges"]}
    if len(path) != n or len(set(path)) != n:
        return False
    if any(tuple(sorted(p)) not in adj for p in zip(path, path[1:])):
        return False
    pos = {v: i for i, v in enumerate(path)}
    order = [pos[c] for c in row["checkpoints"]]
    if path[0] != row["checkpoints"][0] or path[-1] != row["checkpoints"][-1] or order != sorted(order):
        return False
    if any(pos[v] + 1 == pos[u] for u, v in row["arcs"] or []):       # one-way edge used backwards
        return False
    return all(pos[a] < pos[b] for a, b in row["precedence"] or [])  # keys before doors

For co-op (family == "coop") the two paths must be vertex-disjoint and together cover every node; each follows the rules above with its own checkpoints (checkpoints / checkpoints2).

Splits

A pure function of id: x = int.from_bytes(sha1(id)[8:16], "big") % 100 → test if x < 5, validation if x < 10, else train. The hash is independent of how the puzzles were generated and selected, so the split is an unbiased 90 / 5 / 5 for every type. Duplicates are removed, and puzzles from the project's frozen benchmark sets are excluded.

split main unique
train 17,999,763 180,037
validation 1,001,712 9,965
test 998,525 9,998

Exact solver: 80.9% of the main puzzles solved within 1 s on one CPU core; the timeout ones (mostly large 3D/4D, cube surfaces, 12×12 and co-op) are the hardest.

How it was made

Each puzzle is built path-first: a random Hamiltonian path is generated on the graph (randomised DFS + backbite mixing), then checkpoints are placed along it, so every puzzle is solvable by construction. Islands are carved from one big grid whose path is steered (MCMC) to cross island boundaries several times; walls and decoy one-way arrows are placed only where the solution doesn't need them; keys are placed before their doors along the solution; overpasses are grown on straight crossings of the path; co-op boards split and reshuffle a path into two. The unique subset adds checkpoints until the exact solver proves there is only one solution, then rates the puzzle with a human-style deduction solver.

License

MIT

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