Zendo, play by forum

[Proxima]

White koans:
AR       QUICK    SOURTH
NE       QUIG     ZNNE
NO       QUOTE    ZONNE
NORTH    QVW
ONO      R
OR       RO
ORTH     RR
PAR      SOR
Q        SORT
QUEST    SORTH

Black koans:
AC            OS       WO
AD            OTH      XYZ
AG            OUTH     ZN
AO            OW       ZNE
BDP           S        ZONE
CEFGHIJKLM    SO
EAST          SOUTH
MO            V
O             W
OO            WEST

[Ramon]

ACR
ADR
AGR
AOR
Z
ZR
ZNR
ZNER
OQ
OOQ
OQO
N
NN

[Simon]

AKHTBN iff

• it contains an R, or
  
• it contains a Q, or
  
• it contains more Ns than Zs.
  

Ah, and something cute:

AKHTBN iff it has more straight diagonal line segments with negative slope \ than with positive slope /. Equivalently, it has more appearances of N, Q, R added together than appearances of Z. All other letters either have no diagonals, or have both kinds of diagonals (A) but in same amounts.

-- Simon

[Proxima]

AKHTBN iff it has more straight diagonal line segments with negative slope \ than with positive slope /. Equivalently, it has more appearances of N, Q, R added together than appearances of Z. All other letters either have no diagonals, or have both kinds of diagonals (A) but in same amounts.

Correct and thank goodness, saves me from inserting a hefty bunch all at once! 

[Simon]

Thanks! Yeah, the guess felt exactly correct.

I think I'll pass the next round to Silken or Ramond. I don't have a good rule ready.

-- Simon

[Ramon]

I'd have a new one but I'd let Silken host if they have a good idea!

[Silken Healer]

I don't have any rule ideas and playing as the master seems like too much work, thanks anyway though

[Ramon]

Alright then buckle up!

White koans:
* BUCKLE

Black koans:
* UP

[Silken Healer]

BELT
DOWN
LEFT
RIGHT

[Proxima]

BUBBLE
BUCK
UPWARD

[Ramon]

White koans:
  BUCKLE
* LEFT
* RIGHT
* UPWARD

Black koans:
* BELT
* BUBBLE
* BUCK
* DOWN
  UP

[Silken Healer]

BUA
BUB
BUC
BUD
BUE
BUI
BUO
BUU
BUY

[Proxima]

BEFT
BLEFT
LELT

[WillLem]

LEMMING
LEMMINGS
BUCKS
BUCKLES

[Ramon]

EDIT: I realized I mismarked the koan BUCK, which is in fact black.

White koans:
* BEFT
* BLEFT
  BUCKLE
* BUCKLES
* BUI
* BUY
  LEFT
  RIGHT
  UPWARD

Black koans:
  BELT    * BUE
* BUA     * BUO
* BUB     * BUU
  BUBBLE    DOWN
* BUC     * LELT
* BUCK    * LEMMING
* BUCKS   * LEMMINGS
* BUD       UP