MESON Chess Problem Database
Problem Display
PID: 129806 (8/8/q1B5/pN2p3/k7/Pp6/R2Q1p2/5K2 w - - 0 1)
Sobek, Karel
Straz lidu, 1951
#2
6 + 6
| 6490 | yacpdb | 2009 |
SOLUTION
- SOUND
- Sets
- 1...Qb7
- 2.Sc3#
- 1...Qc8
- 2.Sc3#
- 2.Sc7#
- 1...Qb6
- 2.Sc3#
- 1...Qa7
- 2.Sc3#
- 2.Sd4#
- 2.Sd6#
- 2.Sxa7#
- 2.Sc7#
- 1...Qa8
- 2.Sc3#
- 1...bxa2
- 2.Qd1#
- 2.Qc2#
- 1...b2
- 2.Qd1#
- 2.Qc2#
- 1...e4
- 2.Qd4#
- 1...Qb7
- Tries
- 1.Bd7?
- 1...bxa2
- 2.Qd1#
- 2.Qc2#
- 1...Qc6
- 2.Sc3#
- 1...b2
- 2.Qd1#
- 2.Qc2#
- 1...Qb7
- 2.Sc3#
- 1...Qc8
- 2.Sc3#
- 1...Qb6
- 2.Sc3#
- 1...Qd6
- 2.Sc3#
- 2.Sxd6#
- 1...Qe6
- 2.Sc3#
- 1...Qf6
- 2.Sc3#
- 2.Sd6#
- 1...Qg6
- 2.Sc3#
- 2.Sd6#
- 1...Qh6
- 2.Sc3#
- 2.Sd6#
- 1...Qa7
- 2.Sc3#
- 2.Sxa7#
- 2.Sc7#
- 1...Qa8
- 2.Sc3#
- 1...e4
- 2.Qd4#
- 1...Qxb5+!
- 1...bxa2
- 1.Be8?
- 1...bxa2
- 2.Qd1#
- 2.Qc2#
- 1...Qc6
- 2.Sc3#
- 1...b2
- 2.Qd1#
- 2.Qc2#
- 1...Qb7
- 2.Sc3#
- 1...Qc8
- 2.Sc3#
- 1...Qb6
- 2.Sc3#
- 1...Qd6
- 2.Sc3#
- 2.Sxd6#
- 1...Qe6
- 2.Sc3#
- 1...Qf6
- 2.Sc3#
- 2.Sd6#
- 1...Qg6
- 2.Sc3#
- 1...Qh6
- 2.Sc3#
- 2.Sd6#
- 1...Qa7
- 2.Sc3#
- 2.Sxa7#
- 2.Sc7#
- 1...Qa8
- 2.Sc3#
- 1...e4
- 2.Qd4#
- 1...Qxb5+!
- 1...bxa2
- 1.Qf4+?
- 1...e4
- 2.Qxe4#
- 1...exf4!
- 1...e4
- 1.Qxa5+?
- 1...Qxa5
- 2.Sc3#
- 1...Kxa5!
- 1...Qxa5
- 1.Qe2?
- threat
- 2.Sc3#
- 2.Qc4#
- 2.Qe4#
- 1...Qxb5
- 2.Bxb5#
- 2.Qc4#
- 2.Qxb5#
- 1...bxa2
- 2.Qd1#
- 2.Qc4#
- 2.Qc2#
- 1...b2
- 2.Qd1#
- 2.Qc4#
- 2.Qc2#
- 1...Qb6
- 2.Sc3#
- 2.Qc4#
- 1...Qa7
- 2.Sc3#
- 2.Sd4#
- 2.Sd6#
- 2.Sxa7#
- 2.Sc7#
- 2.Qc4#
- 1...e4
- 2.Sc3#
- 2.Qc4#
- 2.Qxe4#
- 1...Qxc6!
- threat
- 1.Qd3?
- threat
- 2.Sc3#
- 2.Qc4#
- 2.Qe4#
- 1...Qxb5
- 2.Bxb5#
- 2.Qc4#
- 2.Qxb5#
- 1...bxa2
- 2.Qc2#
- 2.Qc4#
- 2.Qd1#
- 1...Qb6
- 2.Sc3#
- 2.Qc4#
- 1...Qa7
- 2.Sc3#
- 2.Sd4#
- 2.Sd6#
- 2.Sxa7#
- 2.Sc7#
- 2.Qc4#
- 1...b2
- 2.Qc2#
- 2.Qc4#
- 2.Qd1#
- 1...e4
- 2.Sc3#
- 2.Qc4#
- 2.Qxe4#
- 2.Qd4#
- 1...Qxc6!
- threat
- 1.Qd5?
- threat
- 2.Qc4#
- 2.Qe4#
- 1...Qxb5+
- 2.Bxb5#
- 2.Qc4#
- 2.Qxb5#
- 1...bxa2
- 2.Qc4#
- 2.Qd1#
- 1...Qb6
- 2.Sc3#
- 2.Qc4#
- 1...Qa7
- 2.Sc3#
- 2.Sd4#
- 2.Sd6#
- 2.Sxa7#
- 2.Sc7#
- 2.Qc4#
- 1...b2
- 2.Qc4#
- 2.Qd1#
- 1...e4
- 2.Qc4#
- 2.Qxe4#
- 2.Qd4#
- 1...Qxc6!
- threat
- 1.Bd7?
- Keys
- 1.Qd7!
- 1...Qxb5+
- 2.Bxb5#
- 1...Qxc6
- 2.Sc3#
- 1...bxa2
- 2.Qd1#
- 1...b2
- 2.Qd1#
- 1...Qb7
- 2.Sc3#
- 1...Qc8
- 2.Sc3#
- 2.Sc7#
- 1...Qb6
- 2.Sc3#
- 1...Qa7
- 2.Sc3#
- 2.Sd4#
- 2.Sd6#
- 2.Sxa7#
- 2.Sc7#
- 1...Qa8
- 2.Sc3#
- 1...e4
- 2.Qd4#
- 1...Qxb5+
- 1.Qd7!
FEATURES
- Static
- TYPE = INCOMPLETE_BLOCK
- CHANGED MATES = 0
- ADDED MATES = 4
- REMOVED MATES = 0
- Sets
- Q(f);N_PINS(E)::B(F)+S(E),DCHECK
- P(e);N_GUARD::QAR(C)
- Tries
- Try
- B(F);
- Vars
- Q(f);N_PINS(E)::S(E)
- Q(f);N_PINS(E)::B(F)+S(E),DCHECK
- P(e);N_GUARD::QAR(C)
- Refutation
- Q(f);CHECK,P_SPINQ(f),XS(E)
- Try
- B(F);
- Vars
- Q(f);N_PINS(E)::S(E)
- Q(f);N_PINS(E)::B(F)+S(E),DCHECK
- P(e);N_GUARD::QAR(C)
- Refutation
- Q(f);CHECK,P_SPINQ(f),XS(E)
- Try
- Q(C);CHECK
- Vars
- P(e);P_SPINP(e)::QAR(C),XP(e)
- Refutation
- P(e);XQ(C)
- Try
- Q(C);CHECK,XP(d)
- Vars
- Q(f);N_PINS(E),SBLOCK,XQ(C)::B(F)+S(E),DCHECK
- Refutation
- K(c);P-FLIGHT,XQ(C)
- Try
- Q(C);N_SPINS(E)
- Threat
- DUALS(3)
- Refutation
- Q(f);XB(F)
- Try
- Q(C);N_SPINS(E)
- Threat
- DUALS(3)
- Refutation
- Q(f);XB(F)
- Try
- Q(C);
- Threat
- DUALS(2)
- Refutation
- Q(f);N_PINS(E),XB(F)
- Try
- Actual
- Q(C);
- Vars
- Q(f);CHECK,OGATE,P_SPINQ(f),XS(E)::B(F),XQ(f)
- Q(f);N_PINS(E),XB(F)::S(E)
- P(b);OGATEB,XR(B)::QAB(C)
- P(b);OGATEB::QAB(C)
- Q(f);N_PINS(E)::B(F)+S(E),DCHECK
- P(e);N_GUARD::QAR(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).