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Every piece is a bet.

A strategy game with hidden pieces

Chess where the value of every piece is hidden. You lift a disc, look at it yourself and must move that piece. Your opponent only sees the square you moved from.

Press the discOnly you will see what is under it. Nocturne, gold and obsidian

Values: king, queen, rook, knight, bishop and pawn.

More than chess

Pieces move by the usual rules, but each one is hidden under a disc. The winner is not the one who calculates further, but the one who remembers better and reads the opponent more accurately.

Pieces move and pawns promote as in chess. There is no en passant. White starts. The game ends when a king is captured. A draw may be claimed after 50 moves without a capture.

Full rules
  • Hidden value

    You do not know which piece is under a disc until you open it yourself.

  • Information for you alone

    Your opponent only sees the square you moved from. What was revealed, only you know.

  • Memory and bluff

    Remember what has been opened, and move so that you are not read.

  • Six ranks, a shuffled row

    King, queen, rook, knight, bishop and pawn. Within their own ranks the discs are shuffled before every game.

Room for strategy

Rated games and friendly challenges, six time controls, chat at the board and a review of every game played.

Go to the lobby
OpponentRating 1742
05:23
YouRating 1642
04:17
  • Elo rating
    starts at 1200 and grows with wins in rated games
  • 7 time controls
    from 2+1 to a game without clocks
  • 12 discs
    king, queen, two rooks, two knights, two bishops and four pawns for each side

Incerto in half a minute

What is hidden under a disc, how a move differs from chess, and why you cannot take it back.

Sets for your game

A material changes how the board and discs look, not what they tell you: a paid disc is no easier to read. The shelf here is the shop's own.

Go to the store

Gold pieces

Piece skin
249.00 RUBTo the store

What players say

For the first ten games I simply memorised what had been opened where. Then I realised my opponent was doing the same, and started to bluff.

Maria Volkova
Maria VolkovaRating 1742, 640 games

I play 3+2: there is no time to calculate, you decide by feel. I never had that kind of tension in ordinary chess.

Pavel Orlov
Pavel OrlovRating 1588, 310 games

I came from poker. Here you read the person too, only the board replaces the cards.

Nika Lebedeva
Nika LebedevaRating 1345, 92 games

The review after a game shows what was under every disc. Half of my decisions turned out to be my opponent bluffing.

Igor Sokolov
Igor SokolovRating 1910, 1 204 games

Questions and answers

Every piece is hidden under a disc. A move starts by opening one disc, and that is the piece you must move. The pieces themselves move by the usual rules.

No answer here? support@incerto.online

Your first game a minute after signing up.

Email or a Google account. Rating starts at 1200.