Zendo, play by forum

[Simon]

White koans:
  A             CHICK           HHH    IXI        OKOP    THENCE          X
  AA            CONSEQUENTLY    HXA    JJJ        OKP     TREE            XHX
  AAA           DDD             HXB    KKK        OKPO    TRIFURCATION    XQX
  AAC           DDR             HXC    KOK        OOO     TROUBLE         XXX
  ACT           E               HXE    KYHU       OVO     TTT             XY
  AT            EB              HXH    LEARNER    OWN     U               Y
  AWAY          EEE             HXO    LLL        OXO     UQFQ            YYY
  BBB           EVER            HXU    M          OXR     UUU             Z
  BTU           F               HXX    MAYHEM     OYUX    V               ZF
  C             FFF             HXY    MMM        PPP     VOV             ZXSX
  CAA           FUN             HXZ    NNN        QJR     VVV             ZZZ
  CAT           FURCATXON       I      O          QQQ     WD
  CATENATXON    G             * IHI    OF         QXQ     WE
  CATXON        GGG           * II     OK         RRR     WHICH
  CCC           HE              III    OKO        SSS     WWW
  ANOTHERRULEGUESSSOON

Black koans:
  ASYMMETRIC    CAXENATION       FURCXTION    HYI         SYMMETRIC
  AXI           CAXION           FURXATION    HZI         TAXING
  BXI           CONCATENATION    FUXCATION  * IIH         TEMPTATION
  CATENATION    CXI              FXRCATION    IMITATE     TRICKY
  CATENATIOX    CXTENATION       HAI          IS          TRUNCATION
  CATENATIXN    CXTION           HBI          OCCASION    UXI
  CATENAXION    EXI              HCI          OKI         XATENATION
  CATENXTION    FRUIT            HEI          OKPI        XATION
  CATEXATION    FUNCTION       * HI           OKPIF       XURCATION
  CATION        FURCATION        HII          OXI         XXI
  CATIOX        FURCATIOX        HOI          QXI         YXI
  CATIXN        FURCATIXN        HUI          SICK        ZICZ
  CATXNATION    FURCAXION        HXI          SIMON       ZXI
  HOPEFULLYIWILLBEABLETOFIGUREOUT    THISRULEISVERYHARD
  IAMTRYINGSOMEMOREKOANS

-- Simon

[WillLem]

Maybe a hint?

[Simon]

Hint 1: What is chaff and can be ignored? All-chaff koans happen to be white under this secret rule. The list of white koans has many all-chaff koans already; filter them out to see the weightful white koans.

-- Simon

[Ramon]

KNOBLAUCH
IM
TOPF

[Simon]

White koans:
  A               DDR          HXO          MAYHEM    QQQ             WHICH
  AA              E            HXU          MMM       QXQ             WWW
  AAA             EB           HXX          NNN       RRR             X
  AAC             EEE          HXY          O         SSS             XHX
  ACT             EVER         HXZ          OF        THENCE          XQX
  AT              F            I            OK      * TOPF            XXX
  AWAY            FFF          IHI          OKO       TREE            XY
  BBB             FUN          II           OKOP      TRIFURCATION    Y
  BTU             FURCATXON    III          OKP       TROUBLE         YYY
  C               G            IXI          OKPO      TTT             Z
  CAA             GGG          JJJ          OOO       U               ZF
  CAT             HE           KKK          OVO       UQFQ            ZXSX
  CATENATXON      HHH        * KNOBLAUCH    OWN       UUU             ZZZ
  CATXON          HXA          KOK          OXO       V
  CCC             HXB          KYHU         OXR       VOV
  CHICK           HXC          LEARNER      OYUX      VVV
  CONSEQUENTLY    HXE          LLL          PPP       WD
  DDD             HXH          M            QJR       WE
  ANOTHERRULEGUESSSOON

Black koans:
  ASYMMETRIC    CAXENATION       FURCXTION    HYI         SIMON         ZXI
  AXI           CAXION           FURXATION    HZI         SYMMETRIC
  BXI           CONCATENATION    FUXCATION    IIH         TAXING
  CATENATION    CXI              FXRCATION  * IM          TEMPTATION
  CATENATIOX    CXTENATION       HAI          IMITATE     TRICKY
  CATENATIXN    CXTION           HBI          IS          TRUNCATION
  CATENAXION    EXI              HCI          OCCASION    UXI
  CATENXTION    FRUIT            HEI          OKI         XATENATION
  CATEXATION    FUNCTION         HI           OKPI        XATION
  CATION        FURCATION        HII          OKPIF       XURCATION
  CATIOX        FURCATIOX        HOI          OXI         XXI
  CATIXN        FURCATIXN        HUI          QXI         YXI
  CATXNATION    FURCAXION        HXI          SICK        ZICZ
  HOPEFULLYIWILLBEABLETOFIGUREOUT    THISRULEISVERYHARD
  IAMTRYINGSOMEMOREKOANS

Hint 1: What is chaff and can be ignored? All-chaff koans happen to be white under this secret rule. The list of white koans has many all-chaff koans already; filter them out to see the weightful white koans.

-- Simon

[Ramon]

A koan does NOT have the buddha nature if it contains an I and is not palindromic.

If this is the correct rule: Well, it should have been faster to figure it out. The hint was pretty good and "I" (see what "I" did there?) actually like the combination of how the inclusion of a specific letter made it tougher. I'd also pass the next master round on to kaywhyn.

[Simon]

A koan does NOT have the buddha nature if it contains an I and is not palindromic.

The table refutes this: CHICK contains an I and is not palindromic, therefore it should be black by your guess, yet it is white.

-- Simon

[Ramon]

I also just realized your starting koan disproves the rule. Can't be far off though, most of the white non-chaff koans fit the bill 

Let's adjust it to: A koan does NOT have the buddha nature if it contains an I and there is a different amount of letters to the left of the leftmost I than to the right of the rightmost I.

[Silken Healer]

This is an invalid guess, II is already white on the table

[Ramon]

II is white under my rule.

But I have a better formulation: A koan containing an I has the buddha nature if the positions of its "I"s are symmetric within the koan.

[Silken Healer]

II is white under my rule.

I also just realized your starting koan disproves the rule. Can't be far off though, most of the white non-chaff koans fit the bill 

Let's adjust it to: A koan does NOT have the buddha nature if it contains an I and there is a different amount of letters to the left of the leftmost I than to the right of the rightmost I.

II

Rightmost I: II

I's to the left: 1
I's to the right: 0

they are different, so it should be black under your rule guess

[Ramon]

We count the letters to the left of the leftmost I (which is 0) and we count the letters right of the rightmost I (which is 0)

[Silken Healer]

 

[Simon]

But I have a better formulation: A koan containing an I has the buddha nature if the positions of its "I"s are symmetric within the koan.

You are enlightened!

A koan is white iff it becomes a palindrome after forgetting the differences among the 25 non-I letters.

-- Simon

[kaywhyn]

But I have a better formulation: A koan containing an I has the buddha nature if the positions of its "I"s are symmetric within the koan.

You are enlightened!

A koan is white iff it becomes a palindrome after forgetting the differences among the 25 non-I letters.

-- Simon

A koan does NOT have the buddha nature if it contains an I and is not palindromic.

If this is the correct rule: Well, it should have been faster to figure it out. The hint was pretty good and "I" (see what "I" did there?) actually like the combination of how the inclusion of a specific letter made it tougher. I'd also pass the next master round on to kaywhyn.

Congrats, and thank you kindly @Ramon! Before I take my turn, I'll see if Proxima wants to take his turn first since he previously guessed my rule correctly but decided to pass his turn to be rulemaster. If he still decides he doesn't want to take his turn and says that I can go, then I'll take my turn