{
  "runId": "base-on-s0",
  "seed": 0,
  "model": "brain-qwen38-dspark",
  "capturedAt": "2026-08-28",
  "rewards": {
    "solved": 1.0,
    "economy": 1.0,
    "consistency": 0.6
  },
  "metrics": {
    "guesses_used": 3.0,
    "rejected_replies": 2.0,
    "reference_depth": 4.0,
    "turns_granted": 6.0,
    "inconsistent_guesses": 1.0
  },
  "truncated": false,
  "outcome": "solved",
  "answer": "wants",
  "turns": [
    {
      "reply": "\n\n[slate]",
      "reasoning": "We need answer user: \"Enter your guess to begin.\" We need play word guessing game. Need output only square-bracketed token. Need choose first guess. Need likely 5-letter word. We need maximize information. Common starting word: CRANE, SLATE, ADIEU, AUDIO, RAISE, SLANT, CRATE? Need only bracketed token. No other brackets. Let's think: secret 5-letter word, feedback G/Y/X. Need guess. We can output [crane] maybe. Need ensure lowercase? Example [crane]. Use a common word with distinct letters and common vowels. \"crane\" has c r a n e distinct, good. Alternative \"slate\" s l a t e distinct. \"raise\" has r a i s e. \"adieu\" a d i e u. For first guess, choose high-frequency letters. Common Wordle starting words: CRANE, SLATE, AUDIO, RAISE, LATER, CRATE, SLANT. \"crane\" includes a,e,n,r,c. \"slate\" includes s,l,a,t,e. \"raise\" includes r,a,i,s,e. Which better? Need likely maximize. Maybe \"crane\" is standard. Could choose \"slate\" includes s,l,t. But \"crane\" includes c,r,n. Wordle top letters? e, a, s, r, t, o, i, n, l. \"slate\" has s,l,a,t,e: five top letters. \"crane\" has c,r,a,n,e: c lower. \"raise\" has r,a,i,s,e: top. \"raise\" distinct and top vowels. \"audio\" a,u,d,i,o has multiple vowels, but no consonants top. \"slate\" maybe better. Need one guess. Let's output [slate]? The prompt example [crane], maybe acceptable. We need only bracketed token. I'll choose [slate] maybe. But if they expect valid 5-letter word, slate is valid. Could choose [raise]. Which is most information? Need distinct letters. \"slate\" has s,l,a,t,e; all common. \"raise\" has r,a,i,s,e; all common. \"slate\" includes t/l; \"raise\" includes r/i. Both good. Maybe \"slate\" is often recommended. Use [slate]. Ensure no other brackets. Final only [slate].\n",
      "call": {
        "promptTokens": 183,
        "completionTokens": 516,
        "reasoningTokens": null,
        "durationMs": 20464,
        "finishReason": "stop"
      },
      "info": {
        "guess": "slate",
        "observation": "S L A T E\nY X Y G X\n\nYou have 5 guesses left."
      }
    },
    {
      "reply": "",
      "reasoning": "Let's parse the feedback.\n\nGuess: S L A T E\nPositions:\n1 S: Y (in word, wrong position)\n2 L: X (not in word)\n3 A: Y (in word, wrong position)\n4 T: G (correct position)\n5 E: X (not in word)\n\nSo T is position 4. S and A are in word, not at positions 1 and 3 respectively. L and E are out.\n\nNeed 5-letter word with T at pos4, includes S and A (S not pos1, A not pos3). No L, E.\n\nPossible patterns: _ _ A? T _? Wait A not pos3, S not pos1. T pos4.\nLet's think common words: ? ? ? T ?.\nContains S and A.\nMaybe \"CAST?\" no T pos4? C A S T ? => A pos2, S pos3, T pos4. A not pos3 ok, S not pos1 ok. But E? no. Word cast? 5 letters: cast? \"cast\" 4. \"casts\" = C A S T S. Has S pos3 and pos5, T pos4. But S appears twice? We know S in word; if guess S pos1 Y, could be one or more S. \"casts\" possible. But feedback for S only one S guessed, Y means at least one S not pos1. If word has S pos3/5, okay.\nBut we need guess next. Need maximize info.\n\nCandidates with T4, A,S, no L/E:\n- \"casts\": C A S T S. Letters C,A,S,T,S.\n- \"cast?\" no.\n- \"basts\"? B A S T S (bast? 4, basts plural). \n- \"gasts\"? no.\n- \"has?\" H A S T ? \"hast\" 4.\n- \"masts\" M A S T S.\n- \"rasts\"? no.\n- \"tasts\"? no.\n- \"vast?\" V A S T ? \"vasts\" plural.\n- \"past?\" P A S T ? \"pasts\".\n- \"lasts\" L no.\n- \"casts\", \"masts\", \"pasts\", \"vasts\", \"basts\" maybe.\nBut A could be elsewhere, S elsewhere.\nWords: \"atlas\" has L no. \"astir\" no T4? A S T I R T pos3.\n\"status\" 6.\n\"stats\" S T A T S T pos2,4? Contains S,T,A. T pos4? S T A T S: positions S1 T2 A3 T4 S5. T pos4 yes. But A pos3, feedback A at pos3 would be G, but we got Y for A, so not A pos3. So not stats.\n\"stunt\" no A.\n\"staid\" D? T pos3.\n\"stave\" E no.\n\"stare\" E no.\n\"stall\" L no.\n\"stain\" T pos3.\n\"stand\" T pos3.\n\"stamp\" T pos3.\n\"stump\" T pos3.\n\"strut\" T pos3? S T R U T T5.\n\"strap\" T pos3? S T R A P.\n\"strop\" T pos3? S T R O P.\n\"stout\" T pos3? S T O U T.\n\"stole\" E/L no.\n\"stone\" E no.\n\"stern\" E no.\n\"stilt\" L/I? T pos3.\n\"stint\" T pos3? S T I N T.\n\"stint\" T pos5? Actually S T I N T: T pos2 and 5.\n\"stint\" no A.\n\nT pos4 words: \"stint\" no.\nPattern ?? ? T ?.\nCommon 5-letter: \"about\" A B O U T T5.\n\"above\" E.\n\"abort\" A B O R T T5.\n\"abuse\" E.\n\"adapt\" D A P T ? T4? A D A P T: T5.\n\"adobe\" E.\n\"adore\" E.\n\"adult\" L.\n\"after\" E.\n\"again\" G A I N N no T.\n\"agone\" E.\n\"agony\" G A G O N no T.\n\"agape\" E.\n\"ahead\" E.\n\"ahold\" L.\n\"aided\" E.\n\"ailed\" E/L.\n\"aimed\" E.\n\"aired\" E.\n\"aisle\" E/L.\n\"alike\" L/E.\n\"aloud\" L.\n\"amend\" E.\n\"amiss\" A M I S S T no.\n\"among\" M? no T.\n\"anion\" no.\n\"ankle\" L/E.\n\"anted\" E.\n\"antic\" A N T I C T3.\n\"anvil\" L.\n\"apart\" A P A R T T5.\n\"apex\" E.\n\"apnea\" E.\n\"apron\" no T.\n\"aptly\" L.\n\"arbor\" no T? A R B O R.\n\"arena\" E.\n\"argot\" A R G O T T5.\n\"arise\" E.\n\"armed\" E.\n\"armor\" no.\n\"aroma\" no.\n\"arson\" no T.\n\"artsy\" A R T S Y T3.\n\"aside\" E.\n\"askew\" E.\n\"aspen\" E.\n\"assay\" no T.\n\"atlas\" L.\n\"atone\" E.\n\"attic\" A T T I C T2/3.\n\"audio\" no.\n\"audit\" A U D I T T5.\n\"aunty\" no.\n\"avail\" L.\n\"avert\" E.\n\"avoid\" no.\n\"await\" A W A I T T5.\n\"awake\" E.\n\"awful\" L.\n\"axial\" L.\n\"azure\" E.\n\"bacon\" no T.\n\"badge\" E.\n\"bagel\" E/L.\n\"baker\" E.\n\"baler\" L/E.\n\"balm\" L.\n\"banal\" L.\n\"band\" 4.\n\"bang\" 4.\n\"banjo\" no.\n\"barge\" E.\n\"baron\" no.\n\"baser\" E.\n\"basic\" B A S I C no T.\n\"basil\" L.\n\"baste\" B A S T E T4, E no.\n\"batch\" B A T C H T3.\n\"bated\" E.\n\"bates\" B A T E S T3, E.\n\"bathe\" E.\n\"batik\" B A T I K T3.\n\"baton\" B A T O N T3.\n\"bawdy\" no.\n\"beach\" E.\n\"beady\" E.\n\"beast\" B E A S T E, T5.\n\"beaut\" 4.\n\"becue\" E.\n\"beech\" E.\n\"beef\" E.\n\"beige\" E.\n\"being\" E.\n\"belch\" E/L.\n\"belt\" E/L.\n\"bench\" E.\n\"bend\" E.\n\"bened\" E.\n\"bento\" E.\n\"beret\" E.\n\"berry\" E.\n\"beset\" E.\n\"betel\" E/L.\n\"bevel\" E/L.\n\"bible\" E/L.\n\"bicep\" E.\n\"biddy\" no.\n\"bight\" B I G H T T5.\n\"biker\" E.\n\"billy\" L.\n\"binet\" E.\n\"biped\" E.\n\"birch\" no T? B I R C H.\n\"bison\" no.\n\"biter\" E.\n\"blare\" L/E.\n\"blase\" L/E.\n\"blat\" 4.\n\"blaze\" L/E.\n\"bleak\" E/L.\n\"bleat\" E/L.\n\"blent\" E/L.\n\"blimp\" L.\n\"blint\" B L I N T L no, T5.\n\"blitz\" L.\n\"bloat\" L.\n\"block\" L.\n\"bloom\" L.\n\"blot\" 4.\n\"bluer\" L/E.\n\"blunt\" L.\n\"blurt\" L.\n\"boast\" B O A S T T5.\n\"boast\" T5, not pos4.\n\"boar\" 4.\n\"boast\" no.\n\"boast\" not.\n\"boast\" no.\n\"bobby\" no.\n\"bogey\" E.\n\"bogus\" no T.\n\"boil\" L.",
      "call": {
        "promptTokens": 220,
        "completionTokens": 2048,
        "reasoningTokens": null,
        "durationMs": 78996,
        "finishReason": "length"
      },
      "info": {
        "guess": null,
        "observation": "That guess was not accepted: no bracketed guess found.\nIt did not use up a turn. You have 5 guesses left."
      }
    },
    {
      "reply": "\n\n[pasta]",
      "reasoning": "I need to provide a bracketed guess. Based on the feedback for \"slate\":\nS Y\nL X\nA Y\nT G\nE X\n\nSo T is in the correct position (4th). S and A are in the word but not in those positions. L and E are not in the word.\n\nLet me think of a 5-letter word with T in position 4, containing S and A somewhere else.\n\nPattern: _ _ _ T _\nContains S (not position 1) and A (not position 3)\n\nPossible words:\n- CASTO? No, A can't be in position 3.\n- WASTE? No E.\n- MASTS? No, S is position 5 and 1, but S can't be position 1.\n- PASTA? No, A is position 5, S is position 4... wait T is position 4. P-A-S-T-A: T is 4th (G), A is 2nd and 5th, S is 3rd. But A can't be 3rd (it's 2nd and 5th, that's fine). S is 3rd (not 1st, good). But we have two A's. Let me check: PASTA - P, A, S, T, A. T is 4th \u2713. S is 3rd (not 1st) \u2713. A is 2nd and 5th (not 3rd) \u2713. This could work!\n\n- RUSTS? R-U-S-T-S: T is 4th \u2713, S is 3rd and 5th (not 1st) \u2713, but no A.\n- WASTE? No E.\n- CASTE? No E.\n- PASTA looks good.\n\nOther options:\n- MASTS: M-A-S-T-S - T is 4th \u2713, S is 3rd and 5th \u2713, A is 2nd \u2713. But two S's.\n- TASTY: T-A-S-T-Y - T is 1st and 4th. But T should only be 4th (if there's only one T). Actually we don't know if there's more than one T. But T at position 1 would be G, not Y. So if the word has T at position 1, it would show G. Since we only got one G for T, there's likely only one T at position 4.\n\nLet me go with PASTA.\n",
      "call": {
        "promptTokens": 262,
        "completionTokens": 555,
        "reasoningTokens": null,
        "durationMs": 18834,
        "finishReason": "stop"
      },
      "info": {
        "guess": "pasta",
        "observation": "P A S T A\nX G Y G X\n\nYou have 4 guesses left."
      }
    },
    {
      "reply": "",
      "reasoning": "Let's analyze the clues.\n\nGuess 1: slate\nS L A T E\nY X Y G X\n\nMeaning:\n- S: Y (in word, wrong position)\n- L: X (not in word)\n- A: Y (in word, wrong position)\n- T: G (correct position, position 4)\n- E: X (not in word)\n\nSo word has T at position 4. Contains S and A, but not at positions 1 and 3 respectively. No L, no E.\n\nGuess 2: pasta\nP A S T A\nX G Y G X\n\nMeaning:\n- P: X (not in word)\n- A: G (correct position, position 2)\n- S: Y (in word, wrong position)\n- T: G (correct position, position 4)\n- A: X (not in word? but A at position 2 is G...)\n\nWait, in Wordle-style feedback, duplicate letters are tricky. In \"pasta\", A appears at positions 2 and 5. The feedback shows A at position 2 as G, and A at position 5 as X. That means there's exactly one A in the word, at position 2.\n\nSo far:\n- Position 2: A\n- Position 4: T\n- Contains S (not at position 3, since in \"slate\" S was at position 1 and Y, and in \"pasta\" S at position 3 was Y)\n\nWait, in \"slate\", S was at position 1, feedback Y means S is in word but not at position 1.\nIn \"pasta\", S was at position 3, feedback Y means S is in word but not at position 3.\n\nSo S is in the word, not at position 1, not at position 3. Position 2 is A, position 4 is T. So S must be at position 5? Or... positions available: 1, 3, 5. Not 1, not 3, so S at position 5.\n\nWait, but position 2 is A and position 4 is T, so S can be at 1, 3, or 5. Not 1 (from slate), not 3 (from pasta). So S at position 5.\n\nHmm, but wait. Let me double-check. Actually, let me reconsider whether S could be elsewhere. The word is 5 letters: _ A _ T S? Let me verify.\n\nPosition 1: not S (from slate Y), not P (from pasta X), not L (from slate X)\nPosition 2: A\nPosition 3: not A (from pasta, the second A was X), not S (from pasta Y)\nPosition 4: T\nPosition 5: S (deduced)\n\nSo pattern: _ A _ T S\n\nNot in word: L, E, P\nIn word: S, A, T\n\nRemaining unknowns: position 1 and position 3.\n\nCommon 5-letter words matching _ A _ T S:\n- \"BANTS\" - B A N T S \u2713\n- \"CHANTS\" is 6 letters, no\n- \"DANTS\" no\n- \"FANTS\" no\n- \"HANTS\" no\n- \"JANTS\" no\n- \"MANTS\" - M A N T S \u2713 (mants is a word, plural of mant)\n- \"NANTS\" - N A N T S \u2713 (nants, plural of nant, a river)\n- \"OANTS\" no\n- \"RANTS\" - R A N T S \u2713\n- \"SANTS\" - S A N T S \u2713 (saints is 6... sants? not common)\n- \"TANTS\" - T A N T S \u2713\n- \"UANTS\" no\n- \"WANTS\" - W A N T S \u2713\n- \"YANTS\" - Y A N T S \u2713 (yants, to yank? not common)\n\nAlso \"BARTS\" - B A R T S \u2713\n\"CATS\" is 4 letters. \"CANTS\" - C A N T S \u2713\n\"DARTS\" - D A R T S \u2713\n\"FASTS\" - F A S T S \u2713\n\"GANTS\" - G A N T S \u2713\n\"HANTS\" - H A N T S \u2713\n\"LANTS\" - L is excluded\n\"MARTS\" - M A R T S \u2713\n\"PANTS\" - P is excluded\n\"PARTS\" - P excluded\n\"RATS\" is 4. \"RANTS\" already listed.\n\"SATTS\" no\n\"STATS\" - S T A T S, no, position 1 is S but position 3 is A... wait STATS is S-T-A-T-S, that's position 2 = T, not A. No.\n\"TARTS\" - T A R T S \u2713\n\"VANTS\" no\n\"WARTS\" - W A R T S \u2713\n\"WASTS\" no\n\"YARDS\" no.\n\nSo candidates: BANTS, BARTS, CANTS, DARTS, FASTS, GANTS, HANTS, MANTS, MARTS, NANTS, RANTS, TANTS, TARTS, WANTS, WARTS, YANTS...\n\nAlso \"_A_T S\" where position 3 could be other letters:\n- \"BASTS\"? not a word\n- \"CASTS\" - C A S T S \u2713\n- \"DASTS\" no\n- \"FARTS\" - F A R T S \u2713\n- \"GASTS\" no\n- \"JASTS\" no\n- \"LASTS\" - L excluded\n- \"MASTS\" - M A S T S \u2713\n- \"NASTS\" no\n- \"PASTS\" - P excluded\n- \"RATTS\" no\n- \"SASTS\" no\n- \"TASTS\" - T A S T S? not a word\n- \"VASTS\" - V A S T S \u2713 (vasts, verb)\n- \"WASTS\" no\n- \"YASTS\" no\n\nHmm, lots of candidates. I need a good guess that will discriminate.\n\nI have 4 guesses left. Let me think about what letters to test.\n\nPattern: _ A _ T S\nPosition 1: unknown\nPosition 3: unknown\n\nCommon letters for position 1: R, W, D, B, C, F, M, T, G, H, V, N, Y\nCommon letters for position 3: N, R, S\n\nThe most common pattern would be _AN TS or _AR TS or _AS TS.\n\nLet me think of a good guess. I want to maximize information.\n\nIf I guess a word like \"RANTS\" (R A N T S):\n- If R is G, N is G, then it's RANTS (solved).\n- If R is Y, then R is somewhere else... but R can only be at position 1 or 3. \n- etc.\n\nActually, let me think about what's most likely. Common words: RANTS, WANTS, DARTS, BANTS, TARTS, MARTS, CASTS, MASTS, FARTS, WARTS.\n\nHmm, \"WANTS\" and \"RANTS\" and \"DARTS\" are quite common.\n\nLet me pick a guess that tests multiple possibilities. \n\nA good strategy: guess a word that contains letters likely to be in position 1 and 3.\n\nLet me guess \"DARTS\" - tests D at 1, R at 3.\nOr \"WANTS\" - tests W at 1, N at 3.\nOr \"RANTS\" - tests R at 1, N at 3.\n\nActually, I think I should test the most common letters. Let me consider that position 3 is very likely N, R, or S.\n\nLet me guess \"RANTS\":\n- R at 1, A at 2, N at 3, T at 4, S at 5.\n\nPossible outcomes:\n- If all G: RANTS is the answer.\n- If R is Y: R is in word but not position 1, so R at position 3. Then word is _ A R T S = BARTS, DARTS, MARTS, TARTS, WARTS, FARTS.\n- If N is Y: N is in word but not position 3. Hmm, where would N be? Position 1? Then N A _ T S = NANTS. Or N could be... only positions 1 and 3 are open. So N at 1.\n- If R is X and N is X: neither R nor N is in the word. Then position 1 and 3 are other letters.\n\nThis seems like a decent guess. But maybe I can do better.\n\nActually, let me reconsider. Since I have 4 guesses left and the search space is already quite constrained (_ A _ T S with known exclusions), I should just pick a likely word.\n\nThe most common words fitting _A_T_S:\n- RANTS (common)\n- WANTS (very common)\n- DARTS (very common)\n- BANTS (common)\n- TARTS (common)\n- MART",
      "call": {
        "promptTokens": 298,
        "completionTokens": 2048,
        "reasoningTokens": null,
        "durationMs": 71636,
        "finishReason": "length"
      },
      "info": {
        "guess": null,
        "observation": "That guess was not accepted: no bracketed guess found.\nIt did not use up a turn. You have 4 guesses left."
      }
    },
    {
      "reply": "\n\n[wants]",
      "reasoning": "Let me carefully analyze the clues from my two guesses.\n\nGuess 1: S L A T E\nFeedback: Y X Y G X\n\nSo:\n- S: Y (in word, wrong position)\n- L: X (not in word)\n- A: Y (in word, wrong position)\n- T: G (correct position, position 4)\n- E: X (not in word)\n\nSo position 4 is T. S and A are in the word but not in positions 1 and 3 respectively.\n\nGuess 2: P A S T A\nFeedback: X G Y G X\n\nSo:\n- P: X (not in word)\n- A: G (correct position, position 2)\n- S: Y (in word, wrong position)\n- T: G (correct position, position 4)\n- A: X (not in word... wait, but A was G in position 2)\n\nWait, this is interesting. In PASTA, position 2 is A and it's G. Position 5 is A and it's X. But A appears twice in the word PASTA. The feedback says A at position 2 is G (correct) and A at position 5 is X. This means there's only one A in the secret word, and it's at position 2.\n\nNow from guess 1: S L A T E\n- S: Y (S is in word, not at position 1)\n- L: X\n- A: Y (A is in word, not at position 3) - but we now know A is at position 2, so this is consistent\n- T: G (T at position 4)\n- E: X\n\nFrom guess 2: P A S T A\n- P: X\n- A: G (A at position 2)\n- S: Y (S in word, not at position 3)\n- T: G (T at position 4)\n- A: X (second A not in word, confirming only one A)\n\nSo what we know:\n- Position 2: A\n- Position 4: T\n- S is in the word, not at position 1 (from guess 1) and not at position 3 (from guess 2)\n- L, E, P are not in the word\n- Only one A in the word (at position 2)\n\nS can be at position 5 (since not 1, not 3, not 2 which is A, not 4 which is T).\n\nWait, S is not at position 1 (from SLATE where S was at pos 1 and got Y) and not at position 3 (from PASTA where S was at pos 3 and got Y). So S must be at position 5.\n\nSo we have: _ A _ T S\n\nNow I need to figure out positions 1 and 3.\n\nLetters we know are not in the word: L, E, P\nLetters we know are in the word: A (pos 2), T (pos 4), S (pos 5)\n\nI need to guess a word matching _ A _ T S.\n\nCommon 5-letter words with pattern _ A _ T S:\n- BANTS\n- CANTS\n- DANTS\n- FANTS\n- HANTS\n- JANTS\n- KANTS\n- MANTS\n- NANTS\n- OANTS\n- QUANTS\n- RANTS\n- SANTS\n- TANTS\n- UANTS\n- VANTS\n- WANTS\n- YANTS\n\nWait, but S is already at position 5, so SANTS wouldn't work (S at pos 1 and 5).\n\nActually, let me reconsider. The pattern is _ A _ T S.\n\nCommon words:\n- BANTS\n- CANTS\n- DANTS\n- FANTS\n- HANTS\n- KANTS\n- MANTS\n- RANTS\n- WANTS\n\nHmm, but I should also consider that maybe S isn't at position 5. Let me re-check.\n\nFrom SLATE: S at position 1 \u2192 Y (S is in word, wrong position)\nFrom PASTA: S at position 3 \u2192 Y (S is in word, wrong position)\n\nSo S is not at position 1 or 3. Position 2 is A, position 4 is T. So S must be at position 5. Yes, that's correct.\n\nLet me think of common words: _ A _ T S\n- BANTS (not very common)\n- CANTS (not super common)\n- DANTS (not common)\n- FANTS (not common)\n- HANTS (not common)\n- KANTS (not common)\n- MANTS (not common)\n- RANTS (common!)\n- WANTS (very common!)\n\nI'll go with WANTS as it's the most common word.\n\nWait, but I need to make sure W and N are valid. Let me just guess WANTS.\n\nActually, let me think if there are other possibilities. What about words where the pattern isn't _ A _ T S?\n\nNo, I'm confident:\n- Pos 2: A\n- Pos 4: T\n- Pos 5: S\n- Pos 1: ?\n- Pos 3: ?\n\nWANTS seems like the best guess. Let me go with that.\n",
      "call": {
        "promptTokens": 340,
        "completionTokens": 1181,
        "reasoningTokens": null,
        "durationMs": 36181,
        "finishReason": "stop"
      },
      "info": {
        "guess": "wants",
        "observation": "W A N T S\nG G G G G\n\nYou have 3 guesses left."
      }
    }
  ]
}
