MESON Chess Problem Database
Problem Display
PID: 100004 (5b2/7Q/3pNkPn/3Kp2P/4B3/8/8/8 w - - 0 1)
Sonnenfeld, Pal
Magyar Sakkvilag, 1925
#2
6 + 5
| 6490 | yacpdb | 2009 |
SOLUTION
- SOUND
- Sets
- 1...Be7
- 2.Qg7#
- 2.Qh8#
- 1...Bg7
- 2.Qxg7#
- 1...Sg4
- 2.Qf7#
- 1...Sf5
- 2.Qf7#
- 1...Sf7
- 2.Qxf7#
- 1...Sg8
- 2.Qf7#
- 1...Be7
- Tries
- 1.Bb1?
- 1...Bg7
- 2.Qxg7#
- 1...Sf7
- 2.Qxf7#
- 1...Be7
- 2.Qg7#
- 2.Qh8#
- 1...Sg4
- 2.Qf7#
- 1...Sf5
- 2.Qf7#
- 1...Sg8
- 2.Qf7#
- 1...e4!
- 1...Bg7
- 1.Bc2?
- 1...Bg7
- 2.Qxg7#
- 1...Sf7
- 2.Qxf7#
- 1...Be7
- 2.Qg7#
- 2.Qh8#
- 1...Sg4
- 2.Qf7#
- 1...Sf5
- 2.Qf7#
- 1...Sg8
- 2.Qf7#
- 1...e4!
- 1...Bg7
- 1.Bd3?
- 1...Bg7
- 2.Qxg7#
- 1...Sf7
- 2.Qxf7#
- 1...Be7
- 2.Qg7#
- 2.Qh8#
- 1...Sg4
- 2.Qf7#
- 1...Sf5
- 2.Qf7#
- 1...Sg8
- 2.Qf7#
- 1...e4!
- 1...Bg7
- 1.Qa7?
- 1...Bg7
- 2.Qxg7#
- 1...Sg4
- 2.Qf7#
- 1...Sf5
- 2.Qf7#
- 1...Sf7
- 2.Qxf7#
- 1...Sg8
- 2.Qf7#
- 1...Be7!
- 1...Bg7
- 1.Qb7?
- 1...Bg7
- 2.Qxg7#
- 1...Sg4
- 2.Qf7#
- 1...Sf5
- 2.Qf7#
- 1...Sf7
- 2.Qxf7#
- 1...Sg8
- 2.Qf7#
- 1...Be7!
- 1...Bg7
- 1.Qc7?
- 1...Bg7
- 2.Qd8#
- 2.Qxg7#
- 1...Sg4
- 2.Qf7#
- 1...Sf5
- 2.Qf7#
- 1...Sf7
- 2.Qxf7#
- 1...Sg8
- 2.Qf7#
- 1...Be7!
- 1...Bg7
- 1.Qd7?
- 1...Bg7
- 2.Qxg7#
- 2.Qd8#
- 1...Sg4
- 2.Qf7#
- 1...Sf5
- 2.Qf7#
- 1...Sf7
- 2.Qxf7#
- 1...Sg8
- 2.Qf7#
- 1...Be7!
- 1...Bg7
- 1.Qh8+?
- 1...Bg7
- 2.Qxg7#
- 2.Qd8#
- 1...Ke7!
- 1...Bg7
- 1.Bb1?
- Keys
- 1.g7!
- 1...Ke7
- 2.gxf8Q#
- 1...Kf7
- 2.gxf8Q#
- 2.gxf8R#
- 1...Bxg7
- 2.Qxg7#
- 1...Be7
- 2.Qg6#
- 1...Sg4
- 2.gxf8Q#
- 2.gxf8R#
- 2.g8S#
- 1...Sf5
- 2.gxf8Q#
- 2.gxf8R#
- 2.g8S#
- 1...Sf7
- 2.g8S#
- 1...Sg8
- 2.gxf8Q#
- 2.gxf8R#
- 1...Ke7
- 1.g7!
There are these versions: 206641
FEATURES
- Static
- TYPE = MUTATE
- CHANGED MATES = 1
- ADDED MATES = 2
- REMOVED MATES = 3
- Sets
- B(e);N_GUARD::QAB1(F),XB(e)
- S(d);N_GUARD::QAR1(F)
- S(d);N_GUARD::QAR1(F),XS(d)
- Tries
- Try
- B(A);
- Vars
- B(e);N_GUARD::QAB1(F),XB(e)
- S(d);N_GUARD::QAR1(F),XS(d)
- S(d);N_GUARD::QAR1(F)
- Refutation
- P(a);
- Try
- B(A);
- Vars
- B(e);N_GUARD::QAB1(F),XB(e)
- S(d);N_GUARD::QAR1(F),XS(d)
- S(d);N_GUARD::QAR1(F)
- Refutation
- P(a);
- Try
- B(A);
- Vars
- B(e);N_GUARD::QAB1(F),XB(e)
- S(d);N_GUARD::QAR1(F),XS(d)
- S(d);N_GUARD::QAR1(F)
- Refutation
- P(a);
- Try
- Q(F);
- Vars
- B(e);N_GUARD::QAB1(F),XB(e)
- S(d);N_GUARD::QAR1(F)
- S(d);N_GUARD::QAR1(F),XS(d)
- Refutation
- B(e);
- Try
- Q(F);
- Vars
- B(e);N_GUARD::QAB1(F),XB(e)
- S(d);N_GUARD::QAR1(F)
- S(d);N_GUARD::QAR1(F),XS(d)
- Refutation
- B(e);
- Try
- Q(F);
- Vars
- S(d);N_GUARD::QAR1(F)
- S(d);N_GUARD::QAR1(F),XS(d)
- Refutation
- B(e);
- Try
- Q(F);
- Vars
- S(d);N_GUARD::QAR1(F)
- S(d);N_GUARD::QAR1(F),XS(d)
- Refutation
- B(e);
- Try
- Q(F);CHECK
- Refutation
- K(c);S_FLIGHT
- Try
- Actual
- P(E);
- Vars
- K(c);S_FLIGHT::PXB(e)=Q
- K(c);P-FLIGHT::PXB(e)=Q
- B(e);OGATE,XP(E)::QAB1(F),XB(e)
- B(e);SBLOCK::QAR1(F)
- S(d);N_GUARD::P=S
- S(d);N_GUARD::PXB(e)=Q
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).