MESON Chess Problem Database
Problem Display
PID: 78560 (3nr3/2K1p2Q/3pk1P1/3p1pB1/3P4/8/8/8 w - - 0 1)
Manzone, Domenico
To Mat, 1956
#2
5 + 7
SOLUTION
- SOUND
- Sets
- 1...Rf8
- 2.Qxe7#
- 1...Rg8
- 2.Qxe7#
- 1...Rh8
- 2.Qxe7#
- 1...Sc6
- 2.Qf7#
- 1...Sb7
- 2.Qf7#
- 1...Sf7
- 2.Qxf7#
- 1...f4
- 2.Qh3#
- 1...Rf8
- Tries
- 1.Bh4?
- 1...Rf8
- 2.Qxe7#
- 1...Rg8
- 2.Qxe7#
- 1...Rh8
- 2.Qxe7#
- 1...Sc6
- 2.Qf7#
- 1...Sb7
- 2.Qf7#
- 1...Sf7
- 2.Qxf7#
- 1...f4!
- 1...Rf8
- 1.Qg8+?
- 1...Sf7
- 2.Qxf7#
- 1...Rxg8!
- 1...Sf7
- 1.Qg7?
- 1...Sc6
- 2.Qf7#
- 1...Rf8
- 2.Qxe7#
- 1...Rg8
- 2.Qxe7#
- 1...Rh8
- 2.Qxe7#
- 1...Sb7
- 2.Qf7#
- 1...Sf7
- 2.Qxf7#
- 1...f4!
- 1...Sc6
- 1.Bh4?
- Keys
- 1.g7!
- threat
- 2.Qg6#
- 1...Kf7
- 2.g8Q#
- 1...Rf8
- 2.gxf8S#
- threat
- 1.g7!
FEATURES
- Static
- TYPE = BLOCK_THREAT
- CHANGED MATES = 1
- ADDED MATES = 1
- REMOVED MATES = 6
- Sets
- R(g);N_GUARD::QAR1(E),XP(e)
- S(f);N_GUARD::QAB1(E)
- S(f);N_GUARD::QAB1(E),XS(f)
- P(b);OGATEB::QAB(E)
- Tries
- Try
- B(B);
- Vars
- R(g);N_GUARD::QAR1(E),XP(e)
- S(f);N_GUARD::QAB1(E)
- S(f);N_GUARD::QAB1(E),XS(f)
- Refutation
- P(b);
- Try
- Q(E);CHECK
- Vars
- S(f);N_GUARD,P_SPINS(f)::QAB1(E),XS(f)
- Refutation
- R(g);XQ(E)
- Try
- Q(E);
- Vars
- S(f);N_GUARD::QAB1(E)
- R(g);N_GUARD::QAR1(E),XP(e)
- S(f);N_GUARD::QAB1(E),XS(f)
- Refutation
- P(b);
- Try
- Actual
- P(C);
- Threat
- QAR2(E)
- Vars
- K(d);S_FLIGHT::P=Q
- R(g);OGATE::PXR(g)=S
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).