GAME 01 / A GAME OF SMALL SACRIFICES

Black Hole.

One hole remains. Keep your numbers away.

How to play
Pyramid21 holes · 10 numbers each
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YouPlaying now
1
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LayaUp next
1
1Your turnChoose an empty hole
Place numbers in order. The final empty hole absorbs its neighbors.
0 / 20 moves

LET THE PLAYERS PLAY

Run an experiment.

Compare AI players over a series of games on your current board.

Simulation settings
2–1000 games

Pyramid · 21 holes. Players alternate who starts. Each game uses a fresh planning seed. Large batches may take hours.

SIMPLE RULES. INTERESTING CHOICES.

Leave nothing
to the void.

  1. 01

    Take turns

    Place your numbers in ascending order, starting at 1. On the classic board, each player has 1 through 10.

  2. 02

    Leave one hole

    Fill every hole but one. That last empty space becomes the black hole.

  3. 03

    Lose less to win

    Add up each player’s numbers directly connected to the black hole. The lower total wins; equal totals are a draw.

About the AI players

Laya is an open-source decision model running on our own server. The difficulty slider adjusts planning effort: higher levels consider more possible continuations and solve small endgames against the best replies. Your selected model chooses the final move from the resulting candidates at every level. The model itself stays the same; higher settings are not a guarantee of winning. It is an experimental opponent, not a solved-game engine. Jev is a hosted decision model from TypeSafe. Both players use the same planning system and difficulty settings. Your live game is saved in this browser; AI turns send board history to our server. For Jev moves, candidate summaries go to TypeSafe. Batch results are stored on our server temporarily.

Your current game is saved in this browser.