Works on your modern browser
QuadroPlace runs on phone, tablet, laptop, desktop and smart TV whenever a current browser is available. No installation is needed: if the device can open a modern browser smoothly, the game is typically ready to play.
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Learn in 5 minutes, strategic gameplay!
Starting Hard mode requires an active subscription. Choose a monthly or yearly plan and access will unlock automatically after Stripe Checkout.
QuadroPlace runs on phone, tablet, laptop, desktop and smart TV whenever a current browser is available. No installation is needed: if the device can open a modern browser smoothly, the game is typically ready to play.
QuadroPlace is built around shared in-person play, pattern-based decisions and multi-step planning.
The winner is the player who:

One match consists of 4 rounds. If the total score is tied after 4 rounds, an extra 4/4+1 tiebreak round follows, using the difficulty rules selected at the start of the game and a 2-minute time limit.
Players take turns placing their pieces on any empty cell.
Players alternate turns. One piece may be moved to an adjacent empty square horizontally or vertically.

Medium adds a jump option to the Easy rules. If a player lines up at least 4 of their pieces consecutively horizontally or vertically, then on their next turn they may jump with any one of those adjacent pieces to any empty square on the board.


The Medium rules are expanded with two types of surround capture. If a player places their own pieces on all four diagonal corner squares of one opposing piece (diamond shape), or their own pieces occupy the left and right sides as well as the upper and lower neighboring squares of that piece (cross shape), they may remove the surrounded piece.


A removed piece can be recovered. If a player can place at least 4 of their own pieces on adjacent diagonal squares in any direction, they may put one of their removed pieces back onto any empty square on the board.


The points earned depend on where the winning square is located:
(The program measures each player's thinking time automatically from the placement of the first piece.)
Points accumulate from round to round. The player who collects the most points wins the full match.
Good game!
QuadroPlace is not just another online game. There is no tracking, no analytics, no marketing cookies, no ads, and no installation. In fact, it is not even online in the usual sense. This game physically requires another human being.
You put the phone down. The endless content stream switches off. And there you are, two people - or more - leaning over the board. Just the pieces, the silence, and that deep, almost unfamiliar feeling that someone is thinking with you.
I created this game so that an electronic device would not dull the mind, but train it. So that it would teach communication, planning ahead, and noticing the human qualities in the other person. So that you understand this: the other person is not an avatar, not a chat window, but someone whose thoughts you read in their eyes.
For every age group!
From a developer who believes in shared experiences.
Veszely István N.