Tapa Train ( 25th Dec to 14th Jan )
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All dates/times on this page are in your local timezone.

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O Player Country Solve Time Pen E Finish Time Clicks Replay

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O = Official Rank
Solve Time = Time taken to solve the puzzle correctly
Pen = Penalty
E = Early Bird Rank
Finish Time = Time at which puzzle was submitted correctly
The numbers next to Replay link shows how many times the replay has been played (excludes self replaying). Only top 3 are shown.

About the contest
  • This is an online only puzzle contest with 16 Tapa puzzles.
  • A new Tapa puzzle will be live in every 30 hours between 25th Dec to 14th Jan.
  • Cumulative points from each day's solving will determine the final scores.
  • There will be a leaderboard for early-birds, apart from the official one. Details here.
Tapa Rules

    1. Shade some empty cells to create a single connected wall.
    2. Numbers in a cell indicate the length of consecutive shaded blocks in the neighboring cells.
    3. If there is more than one number in a cell, then there must be at least one unshaded cell between the shaded cell groups.
    4. The shaded cells cannot form a 2X2 square anywhere in the grid.
    5. Any "?" represent any number greater than 0. Different "?"s in a particular cell may or may not be the same.
    6. Cells with numbers cannot be shaded.

Penpa Interface
  • For shading use one of DG (Dark Grey), GR (Grey), LG (Light Grey) or BL (Black) colors (Submit button will only detect these colors as answer).
  • Other colors can be used for auxiliary marking of un-shaded cells.
  • Tip : On laptops -> Right click gives you green color. You can also use numbers to quickly switch between colors.
Example Puzzle
Rules Explanation

1. Shade some empty cells (shown using black color) to create a single connected wall (Shown using red line)

2. Numbers in a cell indicate the length of consecutive shaded blocks in the neighboring cells. (Shown using red numbering)

3. If there is more than one number in a cell, then there must be at least one unshaded cell between the shaded cell groups.

4. The shaded cells cannot form a 2X2 square anywhere in the grid. (shown by red Xs)

5. Any "?" represent any number greater than 0. Different "?"s in a particular cell may or may not be the same.

Official Leaderboard Earlybirds Leaderboard
A B C
A is determined by player's rank on that day. The table below demostrates the link between rank and A.
B is puzzle difficulty indicator.
Players solving all 16 puzzles will always get 1600 points as B.
B for each puzzle will be calculated based on the following formula after the official time for the puzzle is over.
B for Nth puzzle = 1600 * (Avg of Top 10 players's time of Nth puzzle) / [ Sum of (Avg of Top 10 players's time of all puzzles) ]
First 100 players to submit the puzzle will get C as 100 to 1
Final Leaderboard considers cumulative of A + B for each day. Final Leaderboard considers cumulative of C for each day.

Official

# N Player A + B

Earlybirds

# N Player C

Player

Puzzle A B C

N = Number of puzzles solved within Official Period / Number of puzzles solved
A = SUM(Top 100 players get points from 100 to 1 based on their ranking for that day)
B = SUM(Puzzle Points calculated based on average solving time of top 10 players)
C = SUM(First 100 players get points from 100 to 1 based on their solving end time for that day)