MESON Chess Problem Database
Problem Display
PID: 135748 (K1Q5/p3R3/p7/B2p4/6P1/nN1k4/8/1n6 w - - 0 1)
Ancin, Andrej
Het Belgisch Schaakbord (L'Echiquier Belge), 1964
#2
6 + 6
| 14649 | Andrej Ancin - Chess Compositions | 2008 |
| 5454 | Near Snap | 2010 |
SOLUTION
- SOUND
- Sets
- 1...Sd2
- 2.Qc3#
- 1...Sc3
- 2.Qxc3#
- 1...Sc2
- 2.Qxa6#
- 1...Sc4
- 2.Qf5#
- 1...d4
- 2.Sc1#
- 1...Sd2
- Tries
- 1.Kxa7?
- 1...Sc3
- 2.Qxc3#
- 1...Sc4
- 2.Qf5#
- 1...Sd2
- 2.Qc3#
- 1...Sc2
- 2.Qxa6#
- 1...d4
- 2.Sc1#
- 1...Sb5+!
- 1...Sc3
- 1.Kb8?
- 1...Sc3
- 2.Qxc3#
- 1...Sc4
- 2.Qf5#
- 1...Sd2
- 2.Qc3#
- 1...Sc2
- 2.Qxa6#
- 1...d4
- 2.Sc1#
- 1...Sb5!
- 1...Sc3
- 1.Re1?
- 1...Sc3
- 2.Qxc3#
- 1...Sc4
- 2.Qf5#
- 1...Sd2
- 2.Qc3#
- 1...Sc2
- 2.Qxa6#
- 1...d4
- 2.Sc1#
- 1...Sb5!
- 1...Sc3
- 1.Re5?
- 1...Sc3
- 2.Qxc3#
- 1...Sc4
- 2.Qf5#
- 1...Sd2
- 2.Qc3#
- 1...Sc2
- 2.Qxa6#
- 1...d4
- 2.Sc1#
- 1...Sb5!
- 1...Sc3
- 1.Re8?
- 1...Sc3
- 2.Qxc3#
- 1...Sc4
- 2.Qf5#
- 1...Sd2
- 2.Qc3#
- 1...Sc2
- 2.Qxa6#
- 1...d4
- 2.Sc1#
- 1...Sb5!
- 1...Sc3
- 1.Qc5?
- threat
- 2.Sc1#
- 2.Re3#
- 1...Sc3
- 2.Qxc3#
- 1...Sc2
- 2.Sc1#
- 1...d4
- 2.Sc1#
- 1...Sc4!
- threat
- 1.Qc6?
- 1...Sc3
- 2.Qxc3#
- 1...Sc4
- 2.Qg6#
- 1...Sd2
- 2.Qc3#
- 1...Sc2
- 2.Qxa6#
- 1...d4
- 2.Sc1#
- 1...Sb5!
- 1...Sc3
- 1.g5?
- 1...Sc3
- 2.Qxc3#
- 1...Sc4
- 2.Qf5#
- 1...Sd2
- 2.Qc3#
- 1...Sc2
- 2.Qxa6#
- 1...d4
- 2.Sc1#
- 1...Sb5!
- 1...Sc3
- 1.Kxa7?
- Keys
- 1.Qc1!
- threat
- 2.Re3#
- 1...Sc3
- 2.Qxc3#
- 1...Sc2
- 2.Qf1#
- 1...Sd2
- 2.Qc3#
- 1...Sc4
- 2.Qxb1#
- 1...d4
- 2.Sc5#
- threat
- 1.Qc1!
This anticipates 108956(1986)
This is a version
FEATURES
- Static
- TYPE = THREAT
- CHANGED MATES = 3
- ADDED MATES = 0
- REMOVED MATES = 0
- Sets
- S(a);N_GUARD::QAR1(F)
- S(a);N_GUARD::QAR1(F),XS(a)
- S(b);N_GUARD,SBLOCK::QAB(F),XP(e)
- S(b);SBLOCK::QAB(F)
- P(d);SBLOCK::S(A)
- Tries
- Try
- K(E);P-FLIGHT,XP(f)
- Vars
- S(a);N_GUARD::QAR1(F),XS(a)
- S(b);SBLOCK::QAB(F)
- S(a);N_GUARD::QAR1(F)
- S(b);N_GUARD,SBLOCK::QAB(F),XP(e)
- P(d);SBLOCK::S(A)
- Refutation
- S(b);CHECK
- Try
- K(E);P-FLIGHT
- Vars
- S(a);N_GUARD::QAR1(F),XS(a)
- S(b);SBLOCK::QAB(F)
- S(a);N_GUARD::QAR1(F)
- S(b);N_GUARD,SBLOCK::QAB(F),XP(e)
- P(d);SBLOCK::S(A)
- Refutation
- S(b);
- Try
- R(D);
- Vars
- S(a);N_GUARD::QAR1(F),XS(a)
- S(b);SBLOCK::QAB(F)
- S(a);N_GUARD::QAR1(F)
- S(b);N_GUARD,SBLOCK::QAB(F),XP(e)
- P(d);SBLOCK::S(A)
- Refutation
- S(b);
- Try
- R(D);
- Vars
- S(a);N_GUARD::QAR1(F),XS(a)
- S(b);SBLOCK::QAB(F)
- S(a);N_GUARD::QAR1(F)
- S(b);N_GUARD,SBLOCK::QAB(F),XP(e)
- P(d);SBLOCK::S(A)
- Refutation
- S(b);
- Try
- R(D);
- Vars
- S(a);N_GUARD::QAR1(F),XS(a)
- S(b);SBLOCK::QAB(F)
- S(a);N_GUARD::QAR1(F)
- S(b);N_GUARD,SBLOCK::QAB(F),XP(e)
- P(d);SBLOCK::S(A)
- Refutation
- S(b);
- Try
- Q(F);
- Threat
- DUALS(2)
- Vars
- S(a);N_GUARD::QAR1(F),XS(a)
- S(b);::S(A)
- P(d);::S(A)
- Refutation
- S(b);
- Try
- Q(F);
- Vars
- S(a);N_GUARD::QAR1(F),XS(a)
- S(b);SBLOCK::QAB(F)
- S(a);N_GUARD::QAR1(F)
- S(b);N_GUARD,SBLOCK::QAB(F),XP(e)
- P(d);SBLOCK::S(A)
- Refutation
- S(b);
- Try
- P(B);
- Vars
- S(a);N_GUARD::QAR1(F),XS(a)
- S(b);SBLOCK::QAB(F)
- S(a);N_GUARD::QAR1(F)
- S(b);N_GUARD,SBLOCK::QAB(F),XP(e)
- P(d);SBLOCK::S(A)
- Refutation
- S(b);
- Try
- Actual
- Q(F);
- Threat
- R1(D)
- Vars
- S(a);N_GUARD::QAR1(F),XS(a)
- S(b);SBLOCK::QAB(F)
- S(a);N_GUARD::QAR1(F)
- S(b);N_GUARD,SBLOCK::QAB(F),XS(a)
- P(d);SBLOCK::S(A)
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).