MESON Chess Problem Database
Problem Display
PID: 207997 (8/Q3p3/2P1Nn1R/3k1p2/B1N2p2/5K2/8/8 w - - 0 1)
Goeb, ?
Vasarnapi Ujsag, 1873
#2
7 + 5
| 6490 | yacpdb | 2020 |
SOLUTION
- SOUND
- Sets
- 1...Kxc4
- 2.Qd4#
- 1...Se4
- 2.Qd4#
- 1...Sg4
- 2.Qd4#
- 2.Qc5#
- 1...Sh5
- 2.Qd4#
- 2.Qc5#
- 1...Sd7
- 2.Qd4#
- 1...Sh7
- 2.Qd4#
- 2.Qc5#
- 1...Se8
- 2.Qd4#
- 2.Qc5#
- 1...Sg8
- 2.Qd4#
- 2.Qc5#
- 1...Kxc4
- Tries
- 1.Bb5?
- threat
- 2.Sxf4#
- 2.Sc7#
- 1...Sh5
- 2.Sc7#
- 2.Qd4#
- 2.Qc5#
- 2.Qd7#
- 1...Se8
- 2.Sxf4#
- 2.Qd4#
- 2.Qc5#
- 1...Kxe6!
- threat
- 1.Rxf6?
- threat
- 2.Qd4#
- 2.Qc5#
- 1...Kxc4
- 2.Qd4#
- 1...exf6!
- threat
- 1.Rg6?
- 1...Kxc4
- 2.Qd4#
- 1...Se4
- 2.Qd4#
- 1...Sg4
- 2.Qd4#
- 2.Qc5#
- 1...Sh5
- 2.Qd4#
- 2.Qc5#
- 1...Sd7
- 2.Qd4#
- 1...Sh7
- 2.Qd4#
- 2.Qc5#
- 1...Se8
- 2.Qd4#
- 2.Qc5#
- 1...Sg8
- 2.Qd4#
- 2.Qc5#
- 1...Kxe6!
- 1...Kxc4
- 1.Qf2?
- 1...Kxc4
- 2.Qd4#
- 1...Se4
- 2.Qd4#
- 1...Sg4
- 2.Qd4#
- 2.Qc5#
- 1...Sh5
- 2.Qd4#
- 2.Qc5#
- 1...Sd7
- 2.Qd4#
- 1...Sh7
- 2.Qd4#
- 2.Qc5#
- 1...Se8
- 2.Qd4#
- 2.Qc5#
- 1...Sg8
- 2.Qd4#
- 2.Qc5#
- 1...Kxe6!
- 1...Kxc4
- 1.Qe3?
- 1...Kxc4
- 2.Qd4#
- 2.Qb3#
- 1...Se4
- 2.Qd4#
- 2.Qd3#
- 1...Sg4
- 2.Qd4#
- 2.Qc5#
- 2.Qd3#
- 1...Sh5
- 2.Qd4#
- 2.Qc5#
- 2.Qd3#
- 1...Sd7
- 2.Qd4#
- 2.Qd3#
- 1...Sh7
- 2.Qd4#
- 2.Qc5#
- 2.Qd3#
- 1...Se8
- 2.Qd4#
- 2.Qc5#
- 2.Qd3#
- 1...Sg8
- 2.Qd4#
- 2.Qc5#
- 2.Qd3#
- 1...fxe3!
- 1...Kxc4
- 1.Qb6?
- 1...Kxc4
- 2.Qd4#
- 2.Qb3#
- 1...Se4
- 2.Qd4#
- 1...Sg4
- 2.Qd4#
- 2.Qc5#
- 2.Qb5#
- 1...Sh5
- 2.Qd4#
- 2.Qc5#
- 2.Qb5#
- 1...Sd7
- 2.Qd4#
- 1...Sh7
- 2.Qd4#
- 2.Qc5#
- 2.Qb5#
- 1...Se8
- 2.Qd4#
- 2.Qc5#
- 2.Qb5#
- 1...Sg8
- 2.Qd4#
- 2.Qc5#
- 2.Qb5#
- 1...Kxe6!
- 1...Kxc4
- 1.Qb8?
- 1...Kxc4
- 2.Qb3#
- 1...Kxe6
- 2.Qg8#
- 1...Se4
- 2.Sb6#
- 1...Sg4
- 2.Sb6#
- 2.Qb5#
- 1...Sh5
- 2.Sb6#
- 2.Qb5#
- 1...Sh7
- 2.Sb6#
- 2.Qb5#
- 1...Se8
- 2.Sb6#
- 2.Qb5#
- 1...Sg8
- 2.Sb6#
- 2.Qb5#
- 1...Sd7!
- 1...Kxc4
- 1.Qd7+?
- 1...Kxc4
- 2.Qd4#
- 1...Sxd7!
- 1...Kxc4
- 1.c7?
- 1...Kxc4
- 2.Qd4#
- 1...Se4
- 2.Qd4#
- 1...Sg4
- 2.Qd4#
- 2.Qc5#
- 1...Sh5
- 2.Qd4#
- 2.Qc5#
- 1...Sd7
- 2.Qd4#
- 1...Sh7
- 2.Qd4#
- 2.Qc5#
- 1...Se8
- 2.Qd4#
- 2.Qc5#
- 1...Sg8
- 2.Qd4#
- 2.Qc5#
- 1...Kxe6!
- 1...Kxc4
- 1.Bb5?
- Keys
- 1.Qg1!
- 1...Kxc4
- 2.Qd4#
- 1...Kxe6
- 2.Qg8#
- 1...Se4
- 2.Qd4#
- 1...Sg4
- 2.Qd4#
- 2.Qc5#
- 1...Sh5
- 2.Qd4#
- 2.Qc5#
- 1...Sd7
- 2.Qd4#
- 1...Sh7
- 2.Qd4#
- 2.Qc5#
- 1...Se8
- 2.Qd4#
- 2.Qc5#
- 1...Sg8
- 2.Qd4#
- 2.Qc5#
- 1...Kxc4
- 1.Qg1!
FEATURES
- Static
- TYPE = INCOMPLETE_BLOCK
- CHANGED MATES = 0
- ADDED MATES = 1
- REMOVED MATES = 0
- Sets
- K(b);S_FLIGHT,XS(C)::QAR1(G)
- S(d);::QAR1(G)
- Tries
- Try
- B(B);
- Threat
- DUALS(2)
- Refutation
- K(b);P_SPINS(d),S_FLIGHT,XS(E)
- Try
- R(F);XS(d)
- Threat
- DUALS(2)
- Vars
- K(b);S_FLIGHT,XS(C)::QAR1(G)
- Refutation
- P(e);XR(F)
- Try
- R(F);
- Vars
- K(b);S_FLIGHT,XS(C)::QAR1(G)
- S(d);::QAR1(G)
- Refutation
- K(b);P_SPINS(d),S_FLIGHT,XS(E)
- Try
- Q(G);
- Vars
- K(b);S_FLIGHT,XS(C)::QAR1(G)
- S(d);::QAR1(G)
- Refutation
- K(b);P_SPINS(d),S_FLIGHT,XS(E)
- Try
- Q(G);
- Refutation
- P(a);XQ(G)
- Try
- Q(G);
- Vars
- S(d);::QAR1(G)
- Refutation
- K(b);P_SPINS(d),S_FLIGHT,XS(E)
- Try
- Q(G);
- Vars
- K(b);OGATEB,S_FLIGHT,XS(C)::QAB1(G)
- K(b);OGATEB,P_SPINS(d),S_FLIGHT,XS(E)::QAB(G)
- S(d);::S(C)
- Refutation
- S(d);
- Try
- Q(G);CHECK
- Vars
- K(b);OGATE,S_FLIGHT,XS(C)::QAR1(G)
- Refutation
- S(d);XQ(G)
- Try
- P(D);
- Vars
- K(b);S_FLIGHT,XS(C)::QAR1(G)
- S(d);::QAR1(G)
- Refutation
- K(b);P_SPINS(d),S_FLIGHT,XS(E)
- Try
- Actual
- Q(G);
- Vars
- K(b);S_FLIGHT,XS(C)::QAR1(G)
- K(b);OGATEB,P_SPINS(d),S_FLIGHT,XS(E)::QAB(G)
- S(d);::QAR1(G)
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).