MESON Chess Problem Database
Problem Display
PID: 85828 (k7/2Kp4/1PpP2R1/4P3/7p/3P3p/3PPP1p/6qQ w - - 0 1)
Speckmann, Werner
Die Schwalbe, 1992
#2
10 + 7
| 6490 | yacpdb | 2009 |
SOLUTION
- SOUND
- Sets
- 1...Qxf2
- 2.Qa1#
- 1...Qa1
- 2.Rg8#
- 2.Qxa1#
- 1...Qb1
- 2.Rg8#
- 1...Qc1
- 2.Rg8#
- 1...Qd1
- 2.Rg8#
- 1...Qe1
- 2.Rg8#
- 1...Qf1
- 2.Rg8#
- 1...Qxh1
- 2.Rg8#
- 1...Qg2
- 2.Qa1#
- 1...Qg3
- 2.Qa1#
- 1...Qg5
- 2.Qa1#
- 1...Qxg6
- 2.Qa1#
- 1...Qxf2
- Tries
- 1.Rg2?
- 1...Qxf2
- 2.Qa1#
- 1...Qxh1
- 2.Rg8#
- 1...Qxg2
- 2.Qa1#
- 1...Qa1
- 2.Rg8#
- 2.Qxa1#
- 1...Qb1
- 2.Rg8#
- 1...Qc1
- 2.Rg8#
- 1...Qd1
- 2.Rg8#
- 1...Qe1
- 2.Rg8#
- 1...Qf1
- 2.Rg8#
- 1...c5
- 2.Rxg1#
- 2.Rg8#
- 1...hxg2!
- 1...Qxf2
- 1.Rg3?
- 1...Qxf2
- 2.Qa1#
- 1...Qxh1
- 2.Rg8#
- 1...Qxg3
- 2.Qa1#
- 1...Qa1
- 2.Rg8#
- 2.Qxa1#
- 1...Qb1
- 2.Rg8#
- 1...Qc1
- 2.Rg8#
- 1...Qd1
- 2.Rg8#
- 1...Qe1
- 2.Rg8#
- 1...Qf1
- 2.Rg8#
- 1...Qg2
- 2.Qa1#
- 1...hxg3!
- 1...Qxf2
- 1.Rg4?
- threat
- 2.Ra4#
- 1...Qa1
- 2.Rg8#
- 2.Qxa1#
- 1...Qd1
- 2.Rg8#
- 1...Qxg4!
- threat
- 1.Rg5?
- 1...Qxf2
- 2.Qa1#
- 1...Qxh1
- 2.Rg8#
- 1...Qxg5
- 2.Qa1#
- 1...Qa1
- 2.Rg8#
- 2.Qxa1#
- 1...Qb1
- 2.Rg8#
- 1...Qc1
- 2.Rg8#
- 1...Qd1
- 2.Rg8#
- 1...Qe1
- 2.Rg8#
- 1...Qf1
- 2.Rg8#
- 1...Qg2
- 2.Qa1#
- 1...Qg3
- 2.Qa1#
- 1...Qg4!
- 1...Qxf2
- 1.Rf6?
- threat
- 2.Rf8#
- 1...Qxf2
- 2.Qa1#
- 1...Qg5
- 2.Qa1#
- 1...Qg6
- 2.Qa1#
- 1...Qg7
- 2.Qa1#
- 1...Qg8!
- threat
- 1.Rg7?
- 1...Qxf2
- 2.Qa1#
- 1...Qxh1
- 2.Rg8#
- 1...Qxg7
- 2.Qa1#
- 1...Qa1
- 2.Rg8#
- 2.Qxa1#
- 1...Qb1
- 2.Rg8#
- 1...Qc1
- 2.Rg8#
- 1...Qd1
- 2.Rg8#
- 1...Qe1
- 2.Rg8#
- 1...Qf1
- 2.Rg8#
- 1...Qg2
- 2.Qa1#
- 1...Qg3
- 2.Qa1#
- 1...Qg5
- 2.Qa1#
- 1...Qg6
- 2.Qa1#
- 1...Qg4!
- 1...Qxf2
- 1.Qe4?
- threat
- 2.Qa4#
- 1...Qa1
- 2.Rg8#
- 1...Qd1
- 2.Rg8#
- 1...Qg4!
- threat
- 1.Qd5?
- threat
- 2.Qa2#
- 2.Qg8#
- 2.Qa5#
- 1...Qxf2
- 2.Qa2#
- 2.Qa5#
- 1...Qxg6
- 2.Qa2#
- 2.Qa5#
- 1...Qg4
- 2.Qg8#
- 2.Qa5#
- 1...Qa1
- 2.Rg8#
- 2.Qg8#
- 1...Qb1
- 2.Rg8#
- 2.Qg8#
- 2.Qa5#
- 1...Qc1
- 2.Rg8#
- 2.Qg8#
- 2.Qa5#
- 1...Qd1
- 2.Rg8#
- 2.Qg8#
- 2.Qa5#
- 1...Qg5
- 2.Qa2#
- 2.Qa5#
- 1...cxd5!
- threat
- 1.e3?
- 1...Qxf2
- 2.Qa1#
- 1...Qxh1
- 2.Rg8#
- 1...Qxg6
- 2.Qa1#
- 1...Qa1
- 2.Rg8#
- 2.Qxa1#
- 1...Qb1
- 2.Rg8#
- 1...Qc1
- 2.Rg8#
- 1...Qd1
- 2.Rg8#
- 1...Qe1
- 2.Rg8#
- 1...Qf1
- 2.Rg8#
- 1...Qg2
- 2.Qa1#
- 1...Qg3
- 2.Qa1#
- 1...Qg5
- 2.Qa1#
- 1...Qg4!
- 1...Qxf2
- 1.e4?
- 1...Qxf2
- 2.Qa1#
- 1...Qxh1
- 2.Rg8#
- 1...Qxg6
- 2.Qa1#
- 1...Qg4
- 2.Qa1#
- 1...Qa1
- 2.Rg8#
- 2.Qxa1#
- 1...Qb1
- 2.Rg8#
- 1...Qc1
- 2.Rg8#
- 1...Qd1
- 2.Rg8#
- 1...Qe1
- 2.Rg8#
- 1...Qf1
- 2.Rg8#
- 1...Qg2
- 2.Qa1#
- 1...Qg3
- 2.Qa1#
- 1...Qg5
- 2.Qa1#
- 1...c5!
- 1...Qxf2
- 1.f4?
- 1...Qxh1
- 2.Rg8#
- 1...Qxg6
- 2.Qa1#
- 1...Qg4
- 2.Qa1#
- 1...Qf2
- 2.Rg8#
- 2.Qa1#
- 1...Qe3
- 2.Rg8#
- 2.Qa1#
- 1...Qd4
- 2.Rg8#
- 1...Qc5
- 2.Rg8#
- 1...Qa1
- 2.Rg8#
- 2.Qxa1#
- 1...Qb1
- 2.Rg8#
- 1...Qc1
- 2.Rg8#
- 1...Qd1
- 2.Rg8#
- 1...Qe1
- 2.Rg8#
- 1...Qf1
- 2.Rg8#
- 1...Qg2
- 2.Qa1#
- 1...Qg3
- 2.Qa1#
- 1...Qg5
- 2.Qa1#
- 1...Qxb6+!
- 1...Qxh1
- 1.d4?
- 1...Qxf2
- 2.Qa1#
- 1...Qxh1
- 2.Rg8#
- 1...Qxg6
- 2.Qa1#
- 1...Qg4
- 2.Qa1#
- 1...Qa1
- 2.Rg8#
- 2.Qxa1#
- 1...Qb1
- 2.Rg8#
- 1...Qc1
- 2.Rg8#
- 1...Qd1
- 2.Rg8#
- 1...Qe1
- 2.Rg8#
- 1...Qf1
- 2.Rg8#
- 1...Qg2
- 2.Qa1#
- 1...Qg5
- 2.Qa1#
- 1...Qg3!
- 1...Qxf2
- 1.Rg2?
- Keys
- 1.Re6!
- threat
- 2.Re8#
- 1...dxe6
- 2.Qxc6#
- 1...Qg5
- 2.Qa1#
- 1...Qg6
- 2.Qa1#
- 1...Qg8
- 2.Qa1#
- threat
- 1.Re6!
FEATURES
- Static
- TYPE = THREAT
- CHANGED MATES = 0
- ADDED MATES = 2
- REMOVED MATES = 9
- Sets
- Q(a);OGATE,XP(D)::QAB(A)
- Q(a);N_GUARD::R(I)
- Q(a);N_GUARD,N_SPINP(e),XQ(A)::R(I)
- Q(a);N_SPINP(e),OGATE::QAB(A)
- Q(a);OGATE::QAB(A)
- Q(a);OGATE,XR(I)::QAB(A)
- Tries
- Try
- R(I);N_PINP(e)
- Vars
- Q(a);OGATE,XP(D)::QAB(A)
- Q(a);N_GUARD,XQ(A)::R(I)
- Q(a);OGATE,XR(I)::QAB(A)
- Q(a);N_GUARD::R(I)
- Refutation
- P(c);XR(I)
- Try
- R(I);
- Vars
- Q(a);OGATE,XP(D)::QAB(A)
- Q(a);N_GUARD,N_SPINP(e),XQ(A)::R(I)
- Q(a);OGATE,XR(I)::QAB(A)
- Q(a);N_GUARD::R(I)
- Q(a);N_SPINP(e),OGATE::QAB(A)
- Refutation
- P(d);XR(I)
- Try
- R(I);
- Threat
- R(I)
- Vars
- Q(a);N_GUARD::R(I)
- Refutation
- Q(a);XR(I)
- Try
- R(I);
- Vars
- Q(a);OGATE,XP(D)::QAB(A)
- Q(a);N_GUARD,N_SPINP(e),XQ(A)::R(I)
- Q(a);OGATE,XR(I)::QAB(A)
- Q(a);N_GUARD::R(I)
- Q(a);N_SPINP(e),OGATE::QAB(A)
- Q(a);OGATE::QAB(A)
- Refutation
- Q(a);
- Try
- R(I);
- Threat
- R(I)
- Vars
- Q(a);OGATE,XP(D)::QAB(A)
- Q(a);OGATE::QAB(A)
- Refutation
- Q(a);
- Try
- R(I);
- Vars
- Q(a);OGATE,XP(D)::QAB(A)
- Q(a);N_GUARD,N_SPINP(e),XQ(A)::R(I)
- Q(a);OGATE,XR(I)::QAB(A)
- Q(a);N_GUARD::R(I)
- Q(a);N_SPINP(e),OGATE::QAB(A)
- Q(a);OGATE::QAB(A)
- Refutation
- Q(a);
- Try
- Q(A);
- Threat
- QAR(A)
- Vars
- Q(a);N_GUARD::R(I)
- Refutation
- Q(a);
- Try
- Q(A);
- Threat
- DUALS(3)
- Refutation
- P(e);N_SPINP(e),XQ(A)
- Try
- P(C);
- Vars
- Q(a);OGATE,XP(D)::QAB(A)
- Q(a);N_GUARD,N_SPINP(e),XQ(A)::R(I)
- Q(a);OGATE,XR(I)::QAB(A)
- Q(a);N_GUARD::R(I)
- Q(a);N_SPINP(e),OGATE::QAB(A)
- Q(a);OGATE::QAB(A)
- Refutation
- Q(a);
- Try
- P(C);N_PINP(e)
- Vars
- Q(a);OGATE,XP(D)::QAB(A)
- Q(a);N_GUARD,XQ(A)::R(I)
- Q(a);OGATE,XR(I)::QAB(A)
- Q(a);OGATE::QAB(A)
- Q(a);N_GUARD::R(I)
- Refutation
- P(e);
- Try
- P(D);
- Vars
- Q(a);N_GUARD,N_SPINP(e),XQ(A)::R(I)
- Q(a);OGATE,XR(I)::QAB(A)
- Q(a);OGATE::QAB(A)
- Q(a);N_GUARD::R(I)
- Q(a);N_SPINP(e),OGATE::QAB(A)
- Refutation
- Q(a);CHECK,XP(G)
- Try
- P(E);
- Vars
- Q(a);OGATE,XP(D)::QAB(A)
- Q(a);N_GUARD,N_SPINP(e),XQ(A)::R(I)
- Q(a);OGATE,XR(I)::QAB(A)
- Q(a);OGATE::QAB(A)
- Q(a);N_GUARD::R(I)
- Q(a);N_SPINP(e),OGATE::QAB(A)
- Refutation
- Q(a);
- Try
- Actual
- R(I);
- Threat
- R(I)
- Vars
- P(f);N_GUARD,XR(I)::QAB(A),XP(e)
- Q(a);OGATE::QAB(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).