patterns/barriers.db

# # # # # # # # # # # # # # # # # # # # # # # # # # # # # # # # # # #
# This is GNU Go, a Go program. Contact gnugo@gnu.org, or see       #
# http://www.gnu.org/software/gnugo/ for more information.          #
#                                                                   #
# Copyright 1999, 2000, 2001, 2002, 2003, 2004, 2005, 2006, 2007,   #
# 2008 and 2009 by the Free Software Foundation.                    #
#                                                                   #
# This program is free software; you can redistribute it and/or     #
# modify it under the terms of the GNU General Public License       #
# as published by the Free Software Foundation - version 3,         #
# or (at your option) any later version.                            #
#                                                                   #
# This program is distributed in the hope that it will be           #
# useful, but WITHOUT ANY WARRANTY; without even the implied        #
# warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR           #
# PURPOSE.  See the GNU General Public License in file COPYING      #
# for more details.                                                 #
#                                                                   #
# You should have received a copy of the GNU General Public         #
# License along with this program; if not, write to the Free        #
# Software Foundation, Inc., 51 Franklin Street, Fifth Floor,       #
# Boston, MA 02111, USA                                             #
# # # # # # # # # # # # # # # # # # # # # # # # # # # # # # # # # # #
#
# Database of influence patterns.
#
#  ? - don't care
#  . - empty
#  O - color to move
#  Q - same as O, plus sets the pattern anchor
#  X - opposite color of O
#  o - O or empty
#  x - X or empty
#  , - point which influence can't pass through
# A/D patterns:
#  ! - point where influence gets weakened when passing through
#      (permeability multiplied by 0.7)
# B patterns:
#  ! - marks an intrusion for the anchor stone with indicated value
#
#
# Four different classes of patterns are used here.
#
#  A - Patterns stopping O influence
#  D - Patterns stopping X influence
#  B - Intrusions (where O can intrude into X'x territory)
#  t - Nonterritory patterns indicating points where one color cannot
#      get territory
#
# Constraints are as usual.
# B patterns are matched for the color to move, and for the color having
# made a move in followup influence, in order to compute the followup
# value of this move. (Only patterns including the played move or any
# stone saved by this move are taken into account.)
# For the followup influence, a pattern is used if the usual constraint
# is satisfied, and if the action returns true. See the influence
# documentation for explanation and influence.c for details.


attribute_map value_only

goal_elements none
callback_data XO,!


#########################################################
#                                                       #
#        Influence blocking patterns (barriers)         #
#                                                       #
#########################################################


Pattern Barrier1

O,O

:+,D


Pattern Barrier1b
# gf Corrected symmetry. (3.1.23)

o,o
O,O

:|,D


Pattern Barrier2

xxx
X,X
xxx

:+,A


Pattern Barrier3

.,.
X,X

:|,A

.b.
cad

;!(oplay_break_through(a,b,c,b,d)==WIN)


Pattern Barrier4a

|,O

:-,D

|aO

;!oplay_attack(a,a)


Pattern Barrier4b

|,o?
|.OX

:8,OD

|ao?
|.OX

;!oplay_attack(a,a)


Pattern Barrier5

xXx
x,x
---

:|,A


Pattern Barrier6

,X
,.
--

:8,A

cd
ba
--

;oplay_attack_either(a,b,c,a,c) || !oplay_attack_either(a,b,b,d)


Pattern Barrier6b
# gf New pattern. (3.3.10)
# See century2002:85.

OX
,.
--

:8,A

aX
,.
--

;!defend(a)


Pattern Barrier7

XX
,,
--

:|,A


Pattern Barrier8

,O
O,

:X,D


Pattern Barrier9

,X
X,

:X,A


Pattern Barrier10

XO
O,

:\,D


Pattern Barrier11

OX
X,

:\,A

Oc
ba

;!safe_omove(a) || oplay_defend_both(a,b,c)


Pattern Barrier12

O,.
?,O

:8,D


Pattern Barrier13

X,X
X,X

:+,A


Pattern Barrier14

X,o
X,X

:8,A

Xbo
Xac

;!oplay_attack_either(a,b,b,c)


Pattern Barrier15

xxx
X,x
x,X
xxx

:8,A


Pattern Barrier16

X,.
.,X

:O,A

cae
fbd

;(oplay_attack_either(a,b,f,a,f) || !oplay_attack_either(a,b,c,d))
;&& (oplay_attack_either(b,a,e,b,e) || !oplay_attack_either(b,a,c,d))


Pattern Barrier16b

X,X
.,X

:8,A

cad
fbd

;(oplay_attack_either(a,b,f,a,f) || !oplay_attack_either(a,b,c,d))
;&& !oplay_attack(b,a,c)


Pattern Barrier17

X,.
O,X

:8,A

cae
Obd

;!oplay_attack_either(a,b,c,d)
;&& (oplay_attack_either(b,a,e,b,e) || !oplay_attack_either(b,a,c,d))


Pattern Barrier18

X,O
O,X

:8,A

caO
Obd

;!oplay_attack_either(a,b,c,d) && !oplay_attack_either(b,a,c,d)


Pattern Barrier19

O,,O
...o

:8,D

dbaO
.c.o

;!oplay_break_through(a,b,c,a,c,d)


Pattern Barrier20
# gf Corrected symmetry. (3.1.23)

O,,O
O..o

:8,D

Obae
Ocdo

;!oplay_attack_either(a,b,c,a,c) || !oplay_attack_either(b,a,d,d,e)


Pattern Barrier21

?xx?
xxxx
X,,X
xxxx
?xx?

:+,A


Pattern Barrier22

x..x
X,,X
x..x

:|,A

x..x
XdaX
xcbx

;!oplay_attack_either(a,b,c,d,b,d) && !oplay_attack_either(d,c,b,a,c,a)


Pattern Barrier22a
# This pattern could have '|' symmetry, but to improve the chances
# that it's matched before the expensive next one, we let it have
# '8' symmetry.

?xxxx?
xxxxxx
xX,,Xx
xx,,xx
xxxxxx
------

:8,A


Pattern Barrier22b

X..X
x,,x
xxxx

:|,A

XdaX
xcbx
xxxx

;!oplay_attack_either(a,b,c,d,b,d) && !oplay_attack_either(d,c,b,a,c,a)


Pattern Barrier23
# gf Revised. (3.3.17)

O,,.
.,,O

:O,D

Oab.
.dcO

;oplay_attack_either(a,b,c,d,b,d) || oplay_defend_both(a,b,c,d,a,c)


Pattern Barrier24

?O...
oo,,O
?O...

:-,D


Pattern Barrier25

?xx?
xxxx
X,.x
x.,X
xxxx
?xx?

:8,A


Pattern Barrier26
# gf Revised pattern. (3.5.3)

X,,x
x,,X

:O,A

Xdax
xcbX

;!oplay_attack_either(a,b,c,d,b,d) && !oplay_attack_either(d,c,b,a,c,a)


Pattern Barrier27

oOo
o,o
o,o
---

:|,D


Pattern Barrier28

xXx
x,x
x,x
---

:|,A


Pattern Barrier29

,O
,X
--

:8,D

,b
aX
--

;!oplay_attack_either(a,a,b)


Pattern Barrier30

OO
,X
--

:8,D

OO
aX
--

;!oplay_attack(a,a)


Pattern Barrier31

?.O,o
?.X,o
o..,o
-----

:8,D


Pattern Barrier32

?Ooo
X,,o
..,o
----

:8,D


Pattern Barrier33

XOoo
.X,o
..,o
----

:8,D

XOoo
.Bao
..,o
----

;oplay_attack(a,B)


Pattern Barrier34

XOo
.,o
.,o
---

:8,D


Pattern Barrier34b

XOO
.,X
.,?
---

:8,D

XOO
.,A
.,?
---

;attack(A)


Pattern Barrier35

oOoOo
o,,,o
o,,,o
-----

:|,D


Pattern Barrier36

xXxXx
x,,,x
x,,,x
-----

:|,A


Pattern Barrier37

OXxx
.,,x
..,x
----

:8,A

OAbx
.cdx
..,x
----

;lib(A)>3 || (!legal_omove(b))
;|| (lib(A)>2 && (olib(b) <= 2 || oplay_attack_either(c,d,b,b,c)))


Pattern Barrier38

OXO
,,?
---

:8,D

OAO
,,?
---

;lib(A)==1


Pattern Barrier39

oooO?
oO..o
o.,,o
o.,,o
-----

:8,D


Pattern Barrier40

xxxX?
xX..x
x.,,x
x.,,x
-----

:8,A


Pattern Barrier41a

O.XO
.,,O

:8,D

OcXO
.baO

;!oplay_attack_either(a,b,c,a,c)


Pattern Barrier41b

O.XO
.,,.

:8,D

OcXe
.bad

;oplay_defend_both(a,b,c,d,a,e)


Pattern Barrier42

OX?
.,O

:8,D

cD?
baO

;oplay_attack_either(a,b,b,D) || oplay_defend_both(a,b,a,c)


Pattern Barrier43

?X..O
oO,,o
o..,o
-----

:8,D


Pattern Barrier44

?X.O
O,,.
..,o
----

:8,D

?EbO
Oacd
..,o
----

;oplay_attack_either(a,b,c,d,d,b) && !oplay_defend_both(a,c,b,c,E)


Pattern Barrier45

X.XX
X,,.
.,,.
----

:8,A


Pattern Barrier46

.X.O
O..,
.,,o

:8,D


Pattern Barrier47

ooOoOoo
oo,,,oo
oo,,,oo
oo,,,oo
-------

:|,D


Pattern Barrier48

xxxxxxx
xxXxXxx
xx,,,xx
xx,,,xx
xx,,,xx
-------

:|,A


Pattern Barrier49

O.?
,,.
.,O

:/,D


Pattern Barrier50

O??
,,?
.,O

:/,D


Pattern Barrier51

o.??
O,,O

:8,D


Pattern Barrier52

o.O.?
o,X..
.,...
-----

:8,sD

o.b.?
oaX..
.,...
-----

;!oplay_attack(a,b)


Pattern Barrier53

?O?
OXO
.,x
---

:8,sD


Pattern Barrier54

xx.xx
xXOXx
x,,,x
.....
-----

:|,A

xx.xx
xXOXx
x,a,x
.....
-----

;oplay_attack(a,a)


Pattern Barrier55

OX.O
.,,.

:8,sD

bA.c
.,,.

;lib(A)<=3 && lib(b)>=3 && lib(c)>=3


Pattern Barrier56
# ab generalized (3.5.5)

xXOo
xOX,
.x.,
----

:8,sD

xXbo
xOXa
.x.,
----

;!oplay_attack(a,b)


Pattern Barrier56b

xXOo
XO.,
.X.,
----

:8,sD

xXOo
XOa,
.X.,
----

;safe_omove(a)


Pattern Barrier57

X,
O?

:8,sD

A,
O?

;lib(A)==1


Pattern Barrier58

o,o
OXO

:8,sD

o,o
bAc

;lib(A)<=2 && lib(b)>1 && lib(c)>1


Pattern Barrier59

,.
XO

:8,sD

ab
XO

;oplay_attack(a,b,b)


Pattern Barrier60a

.X.
...
.!.
.!.
---

:|,XA


Pattern Barrier60b

.O.
.,.
.!.
.!.
---

:|,OD


Pattern Barrier61

|oooooo
|!!...o
|...O.o
|..X..o
|....!o
|....!o
+------

:/,D


Pattern Barrier62

?xX?
...O
.!..

:8,OXD


Pattern Barrier63
# gf New pattern. (3.3.10)

oX..
O,..
.,,.
....
----

:8,D


Pattern Barrier64
# gf New pattern. (3.3.10)

oX..
O,,.
..,,
....
----

:8,D

oXc.
Oab.
..,,
....
----

;!oplay_attack(a,b,c,c)


Pattern Barrier65
# ab New (3.3.10)

?O.
X,.
x,.
---

:8,OD

?O.
Ca.
xb.
---

;oplay_attack(a,b,C)


Pattern Barrier66
# gf New pattern. (3.3.13)

|..X...
|......
|..XO..
|..,,..
|..,...
|......
+------

:8,D


Pattern Barrier67
# gf New pattern. (3.5.3)

....O
O,,,.
.....
.....
-----

:8,D


#########################################################
#                                                       #
#   Intrusion patterns (secondary influence sources)    #
#                                                       #
#########################################################


Pattern Intrusion1

???x
...X
!!.Q
----

:8,B,value(30)

???x
..cX
!!ba
----

>return (lib(a)>2 || (lib(a) == 2 && connect_and_cut_helper(a,b,c)));


Pattern Intrusion1a

|??x
|!!X
|..Q
+---

:8,B,value(30)

|??x
|.cX
|.ba
+---

;safe_omove(c)
>return (lib(a)>2 || (lib(a) == 2 && connect_and_cut_helper(a,b,c)));


Pattern Intrusion1b

xxxx
X..X
..!Q
----

:8,B,value(30)

xxxx
X.cX
..ba
----

>return (lib(a)>2 || (lib(a) == 2 && connect_and_cut_helper(a,b,c)));


Pattern Intrusion1c

xxxx
X..X
.!.Q
----

:8,B,value(30)

xxxx
X.dX
.acb
----

;safe_omove(a)
>return (lib(b)>2 || (lib(b) == 2 && connect_and_cut_helper(b,c,d)));


Pattern Intrusion1d
# ab New pattern (3.1.24).

xxxx
!!.X
...Q
----

:8,B,value(30)

xxxx
a!cX
..bQ
----

;!oplay_defend(a,b,c,b)


Pattern Intrusion2

xXx?
...Q
!!..
----

:8,B,value(30)

xXx?
..bd
a!c.
----

;!oplay_attack(a,b,c,d)
>return (!xplay_attack(b,d));


Pattern Intrusion3
# ab 3.1.22 Constraint added (see 13x13:52)

xxX?
...Q
!!..
----

:8,B,value(30)

xxX?
..bd
a!c.
----

;!oplay_attack(a,b,c,d)
>return (!xplay_attack(b,d));


Pattern Intrusion4

XQOX
!!X.
!...
----

:8,B,value(30)

XdOX
baC.
!...
----

;oplay_attack(a,b,C)
>return (!xplay_attack(a,d));


Pattern Intrusion5a

X.QX
.!X.
.!..
----

:8,B,value(30)

XbdX
.aC.
.!..
----

;oplay_attack(a,b,C)
>return (!xplay_attack(b,d));


Pattern Intrusion5b

.QX
!X.

:8,B,value(30)

bfE
aDc

;!oplay_defend_both(a,b,c,D,E)
>return (!xplay_attack(b,f));


Pattern Intrusion6

?QX
X!!
x..

:8,B,value(30)

?aX
Xb!
x..

>return (!xplay_attack(b,a));


# Pattern Intrusion7a
#
# QX.
# .!!
# X.x
#
# :8,BW,value(30)
#
# cA.
# b!!
# X.x
#
# ;lib(A)==2
# >return (!xplay_attack(b,c));
#

Pattern Intrusion7b

QX
!!

:8,B,value(30)

cC
ba

;oplay_attack_either(a,b,C,b);
>return (!xplay_attack(b,c));


Pattern Intrusion8a
# ab 3.1.22 revised constraint (see territory valuation in 13x13:2)

X.X
Q!!
?X.

:8,B,value(30)

B.X
ca!
?X.

;oplay_attack(a,B) && !attack(B)
>return (!xplay_attack(a,c));


Pattern Intrusion8b
# ab New (3.3.18)

?X
Q!
X!

:8,B,value(30)

?B
ca
X!

;oplay_attack(a,B) && !attack(B)
>return (!xplay_attack(a,c));


Pattern Intrusion9

X.
QX
.!

:8,B,value(30)

X.
QC
ba

;oplay_attack(a,b,C)


Pattern Intrusion10
# ab Modified action constraint. (3.3.20)

xxx??
..XO?
!!.Q?
-----

:8,B,value(30)

xxxef
..COg
!badh
-----

;oplay_attack_either(a,b,b,C)
>return (!xplay_attack(a,d) && o_somewhere(g,e,f,h));


Pattern Intrusion11
# O can intrude on either side. The position of the influence source
# here isn't entirely accurate.

.Q.
.X.
.!.
...
---

:|,B,value(30)

dQb
cXa
.!.
...
---

;oplay_attack(a,b,b) && oplay_attack(c,d,d)


Pattern Intrusion12a
# O can intrude on either side. The position of the influence source
# here isn't entirely accurate.

!Q!
!X!
...
...
---

:|,B,value(30)

dQb
cXa
...
...
---

;oplay_attack(a,b,b) || oplay_attack(c,d,d)


Pattern Intrusion12b

oQo
.X!
...

:8,OB,value(30)

odb
.Ca
...

;o_somewhere(b) || oplay_attack_either(a,b,b,C)
>return (!xplay_attack(b,d));


Pattern Intrusion13

?OoQ?
X.!X.
X.!..
.....
-----

:8,B,value(30)

?boa?
X.!X.
X.!..
.....
-----

;lib(a)>=2 && lib(b)>=2


Pattern Intrusion14

?QO?
X!X.
.!..
.!..
----

:8,B,value(30)

?QO?
XaXd
.bc.
.!..
----

;oplay_attack_either(a,b,c,d,b,d)


Pattern Intrusion15

oQo
.XO
!.X

:8,B,value(30)

oeo
aXd
cbX

;!oplay_attack(a,b,c,a)
>return (lib(d)>2 && lib(e)>2 && !xplay_attack(a,e));


Pattern Intrusion16
# ab value decreased (3.1.24)

Q!.
!!.
.xX

:8,B,value(20)


Pattern Intrusion17
# ab value decreased (3.1.24)

Q!.
.!.
XxX

:8,B,value(20)


Pattern Intrusion18

xXx
o..
Q!!
o..
xXx

:8,B,value(30)


Pattern Intrusion19

X..
Q!.
o..
xXx

:8,B,value(30)

X..
ba.
o..
xXx

>return (!xplay_attack(a,b));


Pattern Intrusion20

oQ!
OX!

:8,B,value(30)

edc
fAb

;lib(A)==2 && !oplay_attack(b,b)
>return (!xplay_attack(c,d) && xplay_defend_both(e,d,f));


Pattern Intrusion21

Q.X
.!.
x..

:8,B,value(30)

b.X
a!.
x..

>return (!xplay_attack(a,b));


Pattern Intrusion21b

ooX
Q!.
x..

:8,B,value(30)

ooX
ba.
x..

>return (!xplay_attack(a,b));


Pattern Intrusion22

Q.X
...
.!.

:8,B,value(10)

b.X
a..
.!.

>return (!xplay_attack(a,b));


Pattern Intrusion23

Q..
.!!
---

:8,B,value(10)

eb.
dca
---

;oplay_attack_either(a,b,c,d,b,d)
>return (!xplay_attack(b,e));


Pattern Intrusion24

O..
Q!!
---

:8,B,value(30)

ba.
Q!!
---

>return (!xplay_attack(a,b));


Pattern Intrusion25

!!.O
!XQ.
....
....
----

:8,B,value(30)


Pattern Intrusion26

!!.O
.XQ.
..X!
....
----

:8,B,value(30)


Pattern Intrusion27

Q..
.!.
.!.
...

:8,B,value(30)


Pattern Intrusion28

??Q?
x.!X
..!.
....
----

:8,B,value(30)

??Q?
xdaX
.cb.
....
----

;oplay_attack_either(a,b,c,d,b,d)


Pattern Intrusion29

oooo
oooo
.Q.o
....
.!!.
.!..

:8,B,value(30)


Pattern Intrusion30

oooo
oooo
XQ.o
....
.!!.
.!..

:8,B,value(30)

oooo
oooo
XQfo
dbc.
.ae.
.!..

;oplay_attack(a,b,c,d,e,f,f)


Pattern Intrusion30a

????
????
oQoo
...X
.!..
????

:8,B,value(30)

????
????
ocoo
.b.X
.a..
????

;oplay_connect(a,b,a,c)
>return (!xplay_attack(b,c))


Pattern Intrusion31

ooo
XQ.
.!!
.!.
?.?

:8,B,value(30)

ooo
Xb.
.a!
.!.
?.?

>return (!xplay_attack(a,b));


Pattern Intrusion32

ooo
XQ.
.!.
?.?

:8,B,value(30)

ooo
Xb.
.a.
?.?

>return (!xplay_attack(a,b));


Pattern Intrusion33

oOo
XQX
.!.
?.?

:8,B,value(30)


Pattern Intrusion34

o.o
XQX
.!.
?.?

:8,B,value(30)

obo
XQX
.a.
?.?

;oplay_attack(a,b,b)
>return 0;


Pattern Intrusion35

|..X??
|...Q?
|..X!X
|...!.
|...!.
+-----

:8,B,value(30)

|..X??
|.baQ?
|.fXcX
|..ed.
|...!.
+-----

;oplay_attack(a,b,c,d,e,f,d)


Pattern Intrusion36

?X
Q!
Xx

:8,B,value(30)

?X
ba
Xx

;safe_omove(a)
>return (!xplay_attack(a,b));


Pattern Intrusion37

?X
Q!
oX

:8,B,value(30)

?X
ba
oX

;safe_omove(a)
> return (!xplay_attack(a,b));


Pattern Intrusion38

X?
!Q
--

:8,B,value(5)

X?
ab
--

;safe_omove(a)
> return (!xplay_attack(a,b));


Pattern Intrusion39

?Xx
Q!.
o!X

:8,B,value(30)

?Xx
ba.
o!X

;safe_omove(a)
>return (!xplay_attack(a,b));


Pattern Intrusion40
# gf Revised constraint. (3.3.10)

X!
Q?

:8,B,value(30)

A!
Q?

;lib(A)==1 && attack(A)


Pattern Intrusion41

X!
Q!

:8,B,value(30)

A!
Q!

;lib(A)==1


Pattern Intrusion42

?Ooo
.XQo
.!X.
....
----

:8,B,value(30)

?Oeo
bXQo
.aDc
....
----

;(o_somewhere(e) || !safe_xmove(e)) && !oplay_defend(a,b,c,D)


Pattern Intrusion43

??XO
..XQ
?!!o

:8,B,value(50)

??AO
.cAQ
?dbo

;lib(A)==2 && !attack(A) && !oplay_attack(b,c,d,d)


Pattern Intrusion44a
# gf New pattern. (3.1.20)

.XQ
!!o

:8,B,value(30)

cDf
bae

;safe_omove(a)
;&& (o_somewhere(e) || oplay_attack(a,e,e))
;&& !oplay_defend_both(a,b,c,b,D)
>return (!xplay_attack(a,f) && (o_somewhere(e) || (!xplay_attack(e,f))));


Pattern Intrusion44b
# ab New pattern. (3.3.5)

..X?
.XQo
!!o?

:8,B,value(30)

.dG?
eFho
cab?

;safe_omove(a)
;&& (o_somewhere(b) || oplay_attack(a,b,b))
;&& !oplay_defend_both(a,c,d,e,F,G)
>return (!xplay_attack(a,h));


Pattern Intrusion45
# gf New pattern. (3.1.20)

X.Qo
.!X.
....
----

:8,B,value(30)

XbQo
.aC.
....
----

;safe_omove(a) && oplay_attack(a,b,C)


Pattern Intrusion46
# gf New pattern. (3.1.22)
# gf Fixed diagram inconsistency. (3.1.23)
# FIXME: This pattern exaggerates the intrusion since X can stop it
#        on one of the sides, but we don't know which one he will
#        choose. This may or may not be a problem in practice.

x.Q.x
.!X!.
x...x
x...x
-----

:|,B,value(10)

x.dbx
.cXa.
x...x
x...x
-----

;!oplay_attack(a,b,c,d)


Pattern Intrusion47
# gf New pattern. (3.1.23)

??X.?
o..!.
Q....
-----

:8,B,value(20)

??X.?
o..!.
a....
-----

;lib(a)>2


Pattern Intrusion48
# ab New pattern. (3.1.23)
# FIXME: This would need a constraint. The one below did not work.
# gf Revised. (3.5.3)

?x.
...
Q.!
..X

:8,B,value(20)

# .x.
# fce
# Oba
# .dX
#
# ;oplay_attack(a,b,c,d,e,f,f)


Pattern Intrusion49
# ab added (3.1.24)

XQX
.!!

:8,B,value(30)

bcX
.a!

;oplay_attack(a,b) && ! attack(b)
>return (!xplay_attack(a,c));


Pattern Intrusion50
# ab added (3.1.25)

?..
QX!
...
---

:8,OB,value(30)

?c.
dXa
.b.
---

;!oplay_attack_either(a,b,c,c,d)


Pattern Intrusion51a

?Q?
X.X
.!.

:|,B,value(30)

?e?
CaD
.b.

;oplay_break_through(a,b,C,b,D)
>return(!xplay_attack(a,e));


Pattern Intrusion51b
# ab New pattern. (3.3.5)
# This is a bit incorrect, as usually X can choose on which side the
# intrusion is allowed to happen.
# Due to reading depth limitations, oplay_break_through == CUT is not
# sufficient (see nngs1:40).
# pp Revised constraint (3.5.1)
# Ko checks prevent 0.5 point "breaks through" with no further threat.

?O?
XQX
!X!

:|,BX,value(20)

?O?
aQc
dbe

; (oplay_break_through(a,b,c)==WIN
;  && (!ko(a) || oplay_attack_either(d,b,c))
;  && (!ko(c) || oplay_attack_either(e,b,a)))


Pattern Intrusion52
# gf New pattern. (3.3.3)

X.x
Q!.
.X.

:8,B,value(30)

X.x
ba.
.X.

>return (!xplay_attack(a,b));


Pattern Intrusion53
# gf New pattern. (3.3.3)

X!.
QX!

:8,B,value(50)

Xa.
QB!

;!oplay_defend(a,B)


Pattern Intrusion54
# ab New pattern (3.3.10)
# X cannot play double hane.

..X?
.XQo
!.oo

:8,B,value(40)

.eG?
fXQb
!dac

;(o_somewhere(a) || o_somewhere(b) || o_somewhere(c))
;&& (o_somewhere(a) || oplay_attack(d,a,a)) && oplay_attack(e,f,G)


Pattern Intrusion55
# gf New pattern (3.3.16)

????
xxx?
.!.o
.!.Q
----

:8,B,value(30)

efg?
bcd?
...o
.a.Q
----

;x_somewhere(b,c,d,e,f,g) && safe_omove(a)


Pattern Intrusion56
# gf New pattern (3.3.16)

????
xxx?
!..o
!..Q
----

:8,B,value(30)

fgh?
cde?
a..o
...b
----

;x_somewhere(c,d,e,f,g,h) && !oplay_disconnect(a,a,b)


Pattern Intrusion57
# gf New pattern (3.3.16)

xX
!Q
X?

:8,B,value(30)

xX
ab
X?

;safe_omove(a)

>return !xplay_attack(a,b);


Pattern Intrusion58
# gf New pattern (3.3.17)

XOoo
.XQo
..X!
?..!

:8,B,value(30)

Xgoo
bXfo
.aXc
?.de

;!oplay_disconnect(f,g) && !oplay_disconnect(a,b,c,d,e,c,f)


Pattern Intrusion59
# New pattern (3.3.20)
# It is a little drastic, but see arend2:120 for where it is necessary.

|x!xx
|.!.x
|.X.X
|XQO?
|.oo?

:8,B,value(30)

|x!xx
|.!.x
|.X.B
|AQO?
|.oo?

;!attack(A) && oplay_disconnect(A,B) && !attack(B)


Pattern Intrusion60
#pp New pattern (3.5.1)
# gf FIXME: This pattern looks rather likely to introduce more
#           problems than it solves. We may need to find some other
#           solution to endgame:880. (3.5.7)

OQ?         this pattern should prevent attempts to cut bamboo joint
X.!
OO?

:8,B,value(20)


Pattern Intrusion61
# gf New pattern. (3.5.2)
# This pattern is somewhat questionable. See arend:30 and 13x13:16 for
# positions where it helps.

|..!?
|.X..
|.QXX
|.OO?

:8,B,value(20)

|.a!?
|bEc.
|.QDD
|.OO?

;!oplay_connect(a,b,c,D,E)


Pattern Intrusion62
# gf New pattern. (3.5.3)
# See gifu03:206

.Xo
.Q.
!XO

:8,B,value(20)

.Xo
bQa
cDO

;oplay_attack(c,b,D)
>return !safe_xmove(a) && !oplay_defend_both(c,b,a,b,D);


Pattern Intrusion63
# gf New pattern. (3.7.10)
# Try to discourage unreasonable hane. See gunnar:85.

.oOO?
.OX.X
.QX..
.X..!
-----

:8,B,value(50)

.oOO?
.OXcD
.QX..
aXb.!
-----

;olib(a)>1 && !oplay_connect(a,b,c,b,D)


#########################################################
#                                                       #
#                 Nonterritory patterns                 #
#                                                       #
#########################################################


Pattern Nonterritory1
# gf Revised constraint. (3.3.10)

OxO
XoX

:|,t

OaO
XbX

>if (!false_eye_territory(a)) non_oterritory(a);
>if (!false_eye_territory(b)) non_xterritory(b);


Pattern Nonterritory1b
# gf Revised constraint. (3.3.10)
# gf Revised constraint. (3.3.17)

Ox.
XoX

:8,t

Oxb
XaX

>if ((halfeye(a) || false_eye(a)) && safe_omove(b)
>    && !false_eye_territory(a)) non_xterritory(a);


Pattern Nonterritory1c
# gf Revised constraint. (3.3.10)

Xo.
OxO

:8,t

Xo.
OaO

>if (false_eye(a)
>    && !false_eye_territory(a)) non_oterritory(a);


Pattern Nonterritory2
# gf Revised constraint. (3.3.10)

?xO
x.X
Ox?

:8,t

?xO
xaX
Ox?

>if (!false_eye_territory(a)) non_xterritory(a);


Pattern Nonterritory3
# gf Revised constraint. (3.3.10)

?oX
o.O
Xo?

:8,t

?oX
oaO
Xo?

>if (!false_eye_territory(a)) non_oterritory(a);


Pattern Nonterritory4
# gf Revised constraint. (3.3.10)

|xO
|oX

:8,t

|aO
|bX

>if (!false_eye_territory(a)) non_oterritory(a);
>if (!false_eye_territory(b)) non_xterritory(b);


Pattern Nonterritory5

|?O
|..
|xX

:8,t

|?O
|ab
|xX

>non_xterritory(a);
>non_xterritory(b);


Pattern Nonterritory6

|?X
|..
|oO

:8,t

|?X
|ab
|oO

>non_oterritory(a);
>non_oterritory(b);


Pattern Nonterritory7

.X?
..O
---

:8,t

.X?
baO
---

;safe_omove(a)

>non_xterritory(a);
>non_xterritory(b);


Pattern Nonterritory7b
# gf The old constraint was no good, as can be seen in nngs1:40. After
#    black R6 this pattern declared S5 non-territory. (3.1.30)

.X?
..O
---

:8,t

cX?
baO
---

;safe_omove(a) && oplay_attack(a,b,c,a) && connect_and_cut_helper2(a,b,c)

>non_xterritory(c);


Pattern Nonterritory7c

..X?
...O
----

:8,t

.cD?
ebaO
----

;!oplay_defend_both(a,b,c,b,D)

>non_xterritory(b);
>non_xterritory(c);
>non_xterritory(e);


Pattern Nonterritory8

xXO
..o
---

:8,t

xXO
bao
---

;safe_omove(a)

>non_xterritory(a);
>non_xterritory(b);


Pattern Nonterritory8b
# gf New pattern. (3.3.7)

.XO
...
---

:8,t

dEO
bac
---

;safe_omove(a) && !oplay_defend_both(a,b,c,?,d,b,E)

>non_xterritory(d);


Pattern Nonterritory9

...X
X..?
?oO?

:8,t

.cbX
X.a?
?oO?

;safe_omove(a)

>non_xterritory(b);
>non_xterritory(c);


Pattern Nonterritory10

..x
...
XOX

:8,t

edx
cab
XOX

;safe_omove(a)

>non_xterritory(b);
>non_xterritory(c);
>non_xterritory(d);
>non_xterritory(e);


Pattern Nonterritory11

oOX
OX.
.X.
---

:8,t

oOX
OBc
aB.
---

;safe_omove(a) && oplay_attack(a,B)

>non_xterritory(c);


Pattern Nonterritory12

.?
O.

:/,t

bc
Oa

>non_xterritory(a);
>non_xterritory(b);
>non_xterritory(c);


Pattern Nonterritory13

.?
X.

:/,t

a?
Xb

>non_oterritory(a);
>non_oterritory(b);


Pattern Nonterritory14

.?
..
OX

:8,t

c?
ab
OX

;safe_omove(a)

>non_xterritory(a);
>non_xterritory(b);
>non_xterritory(c);


Pattern Nonterritory15

|.?
|..
|..
|OX

:8,t

|ef
|cd
|ab
|OX

;safe_omove(a)

>non_xterritory(a);
>non_xterritory(b);
>non_xterritory(c);
>non_xterritory(d);
>non_xterritory(e);
>non_xterritory(f);


Pattern Nonterritory16

|.?
|.X
|..
|OX

:8,t

|e?
|cd
|ab
|OX

;safe_omove(a)

>non_xterritory(a);
>non_xterritory(b);
>non_xterritory(c);
>non_xterritory(d);
>non_xterritory(e);


Pattern Nonterritory17

|..
|XO
|.X

:8,t

|ac
|Xd
|bX

;!oplay_defend_both(a,b,?,c,a,d)

>non_oterritory(a);
>non_oterritory(c);


Pattern Nonterritory17b
# gf New pattern. (3.3.7)

|O.
|XO

:8,t

|ba
|Xc

;!xplay_defend_both(a,b,c)

>non_oterritory(a);


Pattern Nonterritory18a

.XOo
..xO
----

:8,t

dEOo
bacO
----

;!oplay_defend_both(a,b,c,?,d,b,E)

>non_xterritory(a);
>non_xterritory(b);
>non_xterritory(d);


Pattern Nonterritory18b

..XOo
...xO
-----

:8,t

fbXOo
dcaeO
-----

;!oplay_defend_both(a,b,c,d,e,?,f,d,b)

>non_xterritory(a);
>non_xterritory(b);
>non_xterritory(c);
>non_xterritory(d);
>non_xterritory(f);


Pattern Nonterritory19
# gf New pattern. (3.1.18)

.?
*X
.O

:8,t

b?
*X
aO

;oplay_attack(*,a,a) && safe_omove(*)

>non_xterritory(*);
>non_xterritory(b);


Pattern Nonterritory20
# gf New pattern. (3.1.18)

*X
.O

:8,t

*X
ab

;attack(b) && oplay_attack(*,b)

>non_oterritory(a);


Pattern Nonterritory21

..
.X
O?

:8,t

cb
aX
O?

;!oplay_attack(a,b,b) && !oplay_attack(b,a,a)

>non_oterritory(a);
>non_oterritory(b);
>non_oterritory(c);


Pattern Nonterritory22

.?
*X
O?

:8,t

a?
*X
O?

;safe_omove(*)

>non_xterritory(*);
>non_xterritory(a);


Pattern Nonterritory23
# tm New Pattern (3.1.20)

O.

:-,t

Oa

>non_xterritory(a);


Pattern Nonterritory24
# tm New Pattern (3.1.20)

X.

:-,t

Xa

>non_oterritory(a);


Pattern Nonterritory25
# gf New pattern. (3.1.20)

|XO
|..

:8,t

|AO
|bc

;lib(A)==2 && connect_and_cut_helper(A,b,c)

>non_oterritory(b);
>non_oterritory(c);


Pattern Nonterritory26
# gf New pattern. (3.1.20)

?.X
OX.
?OX

:8,t

?aX
OXb
?OX

;safe_omove(a)

>non_xterritory(b);


Pattern Nonterritory27
# gf New Pattern (3.1.22)

O..

:-,t

Oab

;safe_omove(a)

>non_xterritory(b);


Pattern Nonterritory28
# gf New Pattern (3.1.22)

O.
x.

:8,t

Oa
xb

;safe_omove(a)

>non_xterritory(b);


Pattern Nonterritory29
# gf New pattern. (3.1.23)

?OO.
X...
----

:8,t

?OOc
Xab.
----

;!safe_omove(a) && oplay_attack(b,a,b)

>non_oterritory(b);
>non_oterritory(c);


Pattern Nonterritory30
# gf New pattern. (3.1.23)

?XX.
O...
----

:8,t

?EEd
Oabc
----

;oplay_attack(a,b,b) && !oplay_attack(a,c,b,b) && oplay_attack(a,c,b,E)

>non_xterritory(c);
>non_xterritory(d);


Pattern Nonterritory31
# gf New pattern. (3.1.23)

?XXX.
O....
-----

:8,t

?XXXd
Oabc.
-----

;oplay_attack(a,b,b) && oplay_attack(a,c,b,c)

>non_xterritory(c);
>non_xterritory(d);


Pattern Nonterritory32
# gf New pattern. (3.1.23)
# gf This pattern is somewhat problematic. O can often block at d to
#    secure e or block at b to secure c. The real point of the pattern
#    is that O can't secure both, but there's no way to express this
#    accurately. See gunnar:15 for a position where this pattern is
#    bad. (3.3.17)

..O
...
X..

:/,t

e.O
da.
Xbc

;!oplay_attack(a,b,c,d,e,d)

>non_oterritory(a);
>non_oterritory(c);
>non_oterritory(e);


Pattern Nonterritory33
# gf New pattern. (3.1.30)

X.O
...
..X

:/,t

X.O
ca.
dbX

;!oplay_attack(a,b,c,a) && !oplay_attack(a,c,b,a)

>non_xterritory(b);
>non_xterritory(c);
>non_xterritory(d);


Pattern Nonterritory34
# gf New pattern. (3.1.30)

x.O
.XO
.xO
---

:8,t

xaO
cXO
.bO
---

;safe_omove(a)
;&& ((x_somewhere(b) && oplay_attack(a,b))
;    || (!x_somewhere(b) && oplay_attack(a,b,b)))

>non_xterritory(c);


Pattern Nonterritory35
# gf New pattern. (3.3.4)

..O
..X

:8,t

caO
dbX

;!oplay_attack(a,b,c,a) && !oplay_attack(a,c,b,a)

>non_xterritory(b);
>non_xterritory(c);
>non_xterritory(d);


Pattern Nonterritory36
# gf New pattern. (3.3.7)
# gf Revised constraint. (3.3.10)

OX?
.OX
.o?
---

:8,t

OX?
baX
.o?
---

;lib(a)==2 && attack(a)

>non_oterritory(b);


Pattern Nonterritory37
# gf New pattern. (3.3.10)
# See trevorb:270.

X.?
.XO
.x?
---

:8,t

Xa?
cBO
.x?
---

;lib(B)==3 && safe_omove(a) && oplay_attack(a,B)

>non_xterritory(c);


Pattern Nonterritory38
# gf New pattern. (3.3.10)
# See trevorc:930.

OX?
.OX
..O

:8,t

OX?
.cX
.ab

;!xplay_defend_both(a,b,c)

>non_oterritory(a);


Pattern Nonterritory39
# gf New pattern. (3.3.10)
# See trevorc:930.

X.O
.XO
..X

:8,t

XaO
.DO
.bC

;!oplay_defend_both(a,?,b,C,D)

>non_xterritory(b);


Pattern Nonterritory40
# gf New pattern. (3.3.10)

oX.
OX.
...
...
---

:8,t

oX.
OXc
dab
.e.
---

;!oplay_defend(a,b,c,d,a)

>non_oterritory(d);
>non_oterritory(e);


Pattern Nonterritory41
# gf New pattern. (3.3.13)

?oOo
X..O
..X?

:8,t

?oOo
XabO
.cX?

;oplay_attack(a,b,b)

>non_xterritory(c);


Pattern Nonterritory42
# gf New pattern. (3.3.15)

OX
.O

:8,t

bX
ac

;!xplay_defend_both(a,b,c) && !adjacent_to_defendable_stone_in_atari(b)
;&& !adjacent_to_defendable_stone_in_atari(c)

>non_oterritory(a);


Pattern Nonterritory43
# gf New pattern. (3.3.15)

oOXx
O..X
oO.X

:8,t

oODx
OabX
oOcX

;!oplay_attack(b,D) && !oplay_attack(b,c,c)

>non_oterritory(a);


Pattern Nonterritory44
# gf New pattern. (3.3.15)

OXXx?
.OOXx
.....
-----

:8,t

OXXx?
eccXx
..abd
-----

;oplay_attack(a,b,c) && !oplay_attack(b,d,d)

>non_oterritory(e);


Pattern Nonterritory45
# gf New pattern. (3.3.16)

O.X
?X.

:8,t

OaX
?Cb

;lib(C)==2 && safe_omove(a) && oplay_attack(a,C) && !oplay_attack(a,b,a)

>non_xterritory(b);


Pattern Nonterritory46
# gf New pattern. (3.3.17)

??X?
O...
X...
?.X?

:8,t

??X?
Oab.
Xcef
?dX?

;oplay_defend(a,b,c,d,e,f,a)

>non_xterritory(b);
>non_xterritory(c);
>non_xterritory(d);
>non_xterritory(e);
>non_xterritory(f);


Pattern Nonterritory47
# gf New pattern. (3.3.17)

?ooo?
X...X

:|,t

?ooo?
CaebD

;!oplay_attack(a,C) && !oplay_attack(b,D)

>non_oterritory(e);


Pattern Nonterritory48
# gf New pattern. (3.5.3)
# See gifu03:507.

?.?
O..
?XO

:8,t

?d?
Oab
?Xc

;!oplay_defend_both(a,b,a,c)

>non_oterritory(b);
>non_oterritory(d);


Pattern Nonterritory49
# gf New pattern. (3.5.3)
# See gifu03:205.

?O?
..X
..?

:8,t

?O?
baX
dc?

;!oplay_attack(a,b,c,a) && !oplay_attack(a,c,b,a)

>non_xterritory(d);


Pattern Nonterritory50
# gf New pattern. (3.5.3)
# See gifu03:205.

??O
X..
?..

:8,t

??O
Xba
?dc

;!oplay_attack(a,b,c,a) && !oplay_attack(a,c,b,a)

>non_xterritory(d);


Pattern Nonterritory51
# gf New pattern. (3.5.3)
# See gifu03:206.

.Ox
.X.
.OX

:8,t

.Ox
bXa
cdX

;!safe_omove(a) && !oplay_defend_both(b,a,?,c,b,d)

>non_oterritory(c);


Pattern Nonterritory52
# gf New pattern. (3.5.3)
# See blunder:17.

O??
.XO
?.?

:8,t

O??
aCb
?d?

;lib(C)==2 && !adjacent_to_stone_in_atari(C) && !oplay_attack_either(a,a,b)

>non_xterritory(d);


Pattern Nonterritory53
# gf New pattern. (3.5.3)
# See gifu03:205.

O.O
.XO
?.?

:8,t

Obc
aXc
?d?

;oplay_attack(a,b,b) && !oplay_attack_either(a,a,c)

>non_xterritory(d);


Pattern Nonterritory54
# gf New pattern. (3.5.3)
# See nicklas4:1103

OX.
...
...
---

:8,t

ODc
eab
...
---

;oplay_defend_both(a,b,c,D,b) && oplay_attack(a,b,a)

>non_oterritory(e);


Pattern Nonterritory55
# gf New pattern. (3.5.4)

?.X.
O...
----

:8,t

?dX.
Ocab
----

;!oplay_attack(a,b,c,a) && !oplay_attack(a,d,c,a)

>non_xterritory(b);


Pattern Nonterritory56
# gf New pattern. (3.7.1)
# See endgame:920.

...
X.O
?O.

:8,t

eac
XbO
?Od

;oplay_attack(a,b,c,d,d)

>non_xterritory(e);


Pattern Nonterritory57
# gf New pattern. (3.7.1)
# See endgame:910.

|..X
|.XO
|...
+---

:8,t

|.eX
|bXO
|dac
+---

;safe_omove(a) && oplay_attack(a,b,c,d,b)

>non_xterritory(e);


Pattern Nonterritory58
# gf New pattern. (3.7.2)
# See gunnar:56.

XOOOX
x...x
-----

:|,t

DOOOE
xabcx
-----

;!oplay_attack_either(a,c,D,c) && !oplay_attack_either(c,a,E,a)

>non_oterritory(b);


Pattern Nonterritory59
# gf New pattern. (3.7.2)
# See gunnar:58.

?OOX
X...
?OO?

:8,t

?OOE
Dabc
?OO?

;!oplay_attack_either(a,c,D,c) && !oplay_attack_either(c,a,E,a)

>non_oterritory(b);


Pattern Nonterritory60
# gf New pattern. (3.7.2)
# See gunnar:57.

??OO
X...
??OX

:8,t

??OO
Ecba
??OD

;!oplay_attack_either(a,c,D,c) && !oplay_attack_either(c,a,E,a)

>non_oterritory(b);


# END OF FILE