MESON Chess Problem Database
Problem Display
PID: 7442 (8/8/8/8/8/3n4/p1NQ4/1k1N1K2 w - - 0 1)
Lincoln, Robert A
HM., Buletin Problemistic, 1990
#2
4 + 3
| 2838 | Fun with Chess Miniatures | 1996 |
| 133 | The Problemist Supplement | 2009 |
SOLUTION
- SOUND
- Sets
- 1...Sb2
- 2.Sc3#
- 1...a1S
- 2.Sa3#
- 1...a1B
- 2.Sa3#
- 1...Sb2
- Tries
- 1.Sa1?
- 1...Sc1
- 2.Qb2#
- 1...Se1
- 2.Qb2#
- 1...Sb2
- 2.Qxb2#
- 1...Sf2
- 2.Qb2#
- 1...Sb4
- 2.Qb2#
- 1...Sf4
- 2.Qb2#
- 1...Sc5
- 2.Qb2#
- 1...Se5
- 2.Qb2#
- 1...Kxa1!
- 1...Sc1
- 1.Se1?
- 1...Sxe1
- 2.Qb2#
- 1...a1Q
- 2.Qc2#
- 1...a1S
- 2.Sc3#
- 1...a1B
- 2.Qc2#
- 1...a1R
- 2.Sc3#
- 2.Qc2#
- 1...Sc1
- 2.Qb2#
- 1...Sb2
- 2.Qxb2#
- 1...Sf2
- 2.Qb2#
- 1...Sb4
- 2.Qb2#
- 1...Sf4
- 2.Qb2#
- 1...Sc5
- 2.Qb2#
- 1...Se5
- 2.Qb2#
- 1...Ka1!
- 1...Sxe1
- 1.Sce3?
- 1...a1Q
- 2.Qc2#
- 1...a1S
- 2.Sc3#
- 1...a1B
- 2.Qc2#
- 1...a1R
- 2.Sc3#
- 2.Qc2#
- 1...Sc1
- 2.Qb2#
- 1...Se1
- 2.Qb2#
- 1...Sb2
- 2.Qxb2#
- 1...Sf2
- 2.Qb2#
- 1...Sb4
- 2.Qb2#
- 1...Sf4
- 2.Qb2#
- 1...Sc5
- 2.Qb2#
- 1...Se5
- 2.Qb2#
- 1...Ka1!
- 1...a1Q
- 1.Sd4?
- 1...a1Q
- 2.Qc2#
- 1...a1S
- 2.Sc3#
- 1...a1B
- 2.Qc2#
- 1...a1R
- 2.Sc3#
- 2.Qc2#
- 1...Sc1
- 2.Qb2#
- 1...Se1
- 2.Qb2#
- 1...Sb2
- 2.Qxb2#
- 1...Sf2
- 2.Qb2#
- 1...Sb4
- 2.Qb2#
- 1...Sf4
- 2.Qb2#
- 1...Sc5
- 2.Qb2#
- 1...Se5
- 2.Qb2#
- 1...Ka1!
- 1...a1Q
- 1.Sa1?
- Keys
- 1.Sb4!
- 1...Ka1
- 2.Qxa2#
- 1...Sxb4
- 2.Qb2#
- 1...a1Q
- 2.Qc2#
- 1...a1S
- 2.Sc3#
- 1...a1B
- 2.Qc2#
- 1...a1R
- 2.Sc3#
- 2.Qc2#
- 1...Sc1
- 2.Qb2#
- 1...Se1
- 2.Qb2#
- 1...Sb2
- 2.Qxb2#
- 1...Sf2
- 2.Qb2#
- 1...Sf4
- 2.Qb2#
- 1...Sc5
- 2.Qb2#
- 1...Se5
- 2.Qb2#
- 1...Ka1
- 1.Sb4!
FEATURES
- Static
- TYPE = INCOMPLETE_BLOCK
- CHANGED MATES = 3
- ADDED MATES = 9
- REMOVED MATES = 0
- Sets
- S(c);SBLOCK::S(A)
- P(b);SBLOCK::S(C)
- Tries
- Try
- S(C);
- Vars
- S(c);N_GUARD::QAR1(D)
- S(c);N_GUARD::QAR1(D),XS(c)
- Refutation
- K(a);P-FLIGHT,XS(C)
- Try
- S(C);
- Vars
- S(c);N_GUARD,XS(C)::QAR1(D)
- P(b);SBLOCK::QAB1(D)
- P(b);SBLOCK::S(A)
- S(c);N_GUARD::QAR1(D)
- S(c);N_GUARD::QAR1(D),XS(c)
- Refutation
- K(a);P-FLIGHT
- Try
- S(C);
- Vars
- P(b);SBLOCK::QAB1(D)
- P(b);SBLOCK::S(A)
- S(c);N_GUARD::QAR1(D)
- S(c);N_GUARD::QAR1(D),XS(c)
- Refutation
- K(a);P-FLIGHT
- Try
- S(C);
- Vars
- P(b);SBLOCK::QAB1(D)
- P(b);SBLOCK::S(A)
- S(c);N_GUARD::QAR1(D)
- S(c);N_GUARD::QAR1(D),XS(c)
- Refutation
- K(a);P-FLIGHT
- Try
- Actual
- S(C);
- Vars
- K(a);P-FLIGHT::QAR1(D),XP(b)
- S(c);N_GUARD,XS(C)::QAR1(D)
- P(b);SBLOCK::QAB1(D)
- P(b);SBLOCK::S(A)
- S(c);N_GUARD::QAR1(D)
- S(c);N_GUARD::QAR1(D),XS(c)
Developed and maintained by Brian Stephenson.
Implemented with HTML5, MySQL, Perl (with, inter alia, CGI::Simple, HTML::Template & XML::LibXML) &
CSS/Javascript (jQuery, Bootstrap & DataTables).