SeaKing

One Piece TCG game review

You lost a game and you are not sure where. Game Review replays the game you just played, searches each of your turns for a win that was sitting on the board, and shows you the line that would have taken it. Free, in the browser, no account.

What SeaKing Game Review does

Every game you play against the AI opponent on seaking.gg is recorded as it happens. When the game ends, open Game Review and the engine plays the record back move by move. On each of your turns it takes the board as it stood, then searches your options for a sequence that ends the game that turn.

Counting lethal by hand is the part people get wrong, because it moves with your hand, your DON attachments, the order you attack in, and what your opponent can block or counter with. The search walks those combinations so you do not have to.

Every decision you made gets a grade as well. The engine takes the board as it stood at that moment, picks its own move, and compares the two. The review runs after the game, when the record already holds the deck order, both hands, and every draw, so the comparison sits on what was really there.

  1. Play a full game against the bot. Nothing to turn on, the recording runs by itself.
  2. Open Game Review from the end-of-game screen.
  3. Read the turn list. Turns where a win was on board are marked.
  4. Open one of those turns and you get the board as it stood, plus the cards to play, the DON placement, and the attack order that reach the win.
  5. Work down the decision list for the grade on each play and the move SeaKing would have made in its place.

Game Review marks the turns it could not finish

Each turn gets its own clock and a set of limits on how wide the search may open. A turn that runs past either one is marked instead of being called complete, because a win may sit down a branch that was never opened. The review as a whole has no limit. It runs until it is done, or until you press Stop.

searched to the end hit a branch limit ran out of time

Measured over 32 recorded turns: 30 searched to the end, one stopped on a width, one on the clock. Six of the eight games in that set came back all green. Your own game reports its own split.

Both limits sit high enough that a full game usually finishes clean. The turns that do not are crowded boards with a lot of ways to attack, and they are worth a second look by hand. Opening the search wider than this has not yet turned up a win the narrower one missed.

What to know before you read a game review

A grade reads cards you could not see

The review opens the whole record: both hands, the deck order, every draw, and the cards still sitting in each deck. That is what makes a verdict worth reading, and it is also the catch. A play that was right on what you knew at the table can still come back marked.

Read a grade as the engine's own pick at the same board. SeaKing runs a cheap search on every decision and calls a mistake only once a wider search agrees, so the review misses mistakes rather than inventing them.

Every reported win gets re-checked

A line the search likes is re-run against the defences your opponent could have held. Lines that fall over at that step are dropped before you ever see them, so a marked turn has already survived it.

Game Review only reads games played on SeaKing

The site writes a record while you play against the bot, and Game Review works off that record. Set up the spot you want to study as a game against the AI and the review has all of it.

Why review a card game at all

Chess players have had post-game analysis for two decades and it is the single biggest reason club players improve faster than they used to. Card games have mostly gone without it. Hidden information is why. An engine watching a live game has to guess at the cards it cannot see. Game Review runs once the game is over, when the record holds all of it, so the engine works from the same board you played on plus everything that was face down.

SeaKing is an unofficial fan tool. Not affiliated with, endorsed, or sponsored by Bandai. One Piece and all related names, card text, and art are trademarks and copyrights of their respective owners.