MESON Chess Problem Database
Problem Display
PID: 90953 (2N1N2K/2pPPkp1/1rn2n1R/5PPb/8/Q7/8/7r w - - 0 1)
Latzel, Gerhard Paul
Die Schwalbe, 1949
#2
9 + 8
| 6490 | yacpdb | 2009 |
SOLUTION
- SOUND
- Sets
- 1...Bd1
- 2.g6#
- 1...Be2
- 2.g6#
- 1...Bf3
- 2.g6#
- 1...Bg4
- 2.g6#
- 1...Sxe7
- 2.Qxe7#
- 1...Sd8
- 2.exd8S#
- 1...Bd1
- Tries
- 1.Sxf6?
- threat
- 2.e8Q#
- 2.e8B#
- 1...Sxe7
- 2.Qxe7#
- 1...gxf6
- 2.Rxf6#
- 2.Rh7#
- 2.e8Q#
- 2.e8B#
- 1...gxh6
- 2.e8Q#
- 2.e8B#
- 1...Ra1
- 2.e8Q#
- 2.e8B#
- 1...Rhb1
- 2.e8Q#
- 2.e8B#
- 1...Rc1
- 2.e8Q#
- 2.e8B#
- 1...Rd1
- 2.e8Q#
- 2.e8B#
- 1...Rf1
- 2.e8Q#
- 2.e8B#
- 1...Rg1
- 2.e8Q#
- 2.e8B#
- 1...Rh2
- 2.e8Q#
- 2.e8B#
- 1...Rh3
- 2.e8Q#
- 2.e8B#
- 1...Rh4
- 2.e8Q#
- 2.e8B#
- 1...Rbb1
- 2.e8Q#
- 2.e8B#
- 1...Rb2
- 2.e8Q#
- 2.e8B#
- 1...Rb3
- 2.Qxb3#
- 2.e8Q#
- 2.e8B#
- 1...Rb5
- 2.e8Q#
- 2.e8B#
- 1...Ra6
- 2.Qb3#
- 2.e8Q#
- 2.e8B#
- 1...Rb7
- 2.e8Q#
- 2.e8B#
- 1...Rb8
- 2.e8Q#
- 2.e8B#
- 1...Bd1
- 2.e8Q#
- 2.e8B#
- 1...Be2
- 2.e8Q#
- 2.e8B#
- 1...Bf3
- 2.e8Q#
- 2.e8B#
- 1...Bg4
- 2.e8Q#
- 2.e8B#
- 1...Bg6
- 2.e8Q#
- 2.e8B#
- 1...Sd4
- 2.d8S#
- 2.e8Q#
- 2.e8B#
- 1...Sa5
- 2.d8S#
- 2.e8Q#
- 2.e8B#
- 1...Se5
- 2.d8S#
- 2.e8Q#
- 2.e8B#
- 1...Sa7
- 2.d8S#
- 2.e8Q#
- 2.e8B#
- 1...Sb8
- 2.d8S#
- 2.e8Q#
- 2.e8B#
- 1...Sd8
- 2.exd8S#
- 2.e8Q#
- 2.e8B#
- 1...g6
- 2.Rh7#
- 2.e8Q#
- 2.e8B#
- 1...Re1!
- threat
- 1.Qa2+?
- 1...Sd5
- 2.Qxd5#
- 1...Rb3!
- 1...Sd5
- 1.Qb3+?
- 1...Sd5
- 2.Qxd5#
- 1...Rxb3!
- 1...Sd5
- 1.Sxf6?
- Keys
- 1.Sxg7!
- threat
- 2.Rxf6#
- 1...Sxe7
- 2.Qxe7#
- 1...Sxd7
- 2.e8Q#
- 2.e8B#
- 1...Bd1
- 2.g6#
- 1...Be2
- 2.g6#
- 1...Bf3
- 2.g6#
- 1...Bg4
- 2.g6#
- 1...Bg6
- 2.fxg6#
- 1...Sb4
- 2.d8S#
- 1...Sd4
- 2.d8S#
- 1...Sa5
- 2.d8S#
- 1...Se5
- 2.d8S#
- 1...Sa7
- 2.d8S#
- 1...Sb8
- 2.d8S#
- 1...Sd8
- 2.exd8S#
- 1...Se4
- 2.e8Q#
- 2.e8B#
- 1...Sg4
- 2.e8Q#
- 2.e8B#
- 1...Sd5
- 2.e8Q#
- 2.e8B#
- 1...Sh7
- 2.e8Q#
- 2.e8B#
- 1...Se8
- 2.dxe8Q#
- 2.dxe8B#
- 1...Sg8
- 2.e8Q#
- 2.e8B#
- threat
- 1.Sxg7!
FEATURES
- Static
- TYPE = THREAT
- CHANGED MATES = 0
- ADDED MATES = 7
- REMOVED MATES = 0
- Sets
- B(b);N_GUARD,P_PINR(D)::P(C)
- S(d);OGATE,XP(F)::QAR1(A),XS(d)
- S(d);OGATE::PXS(d)=S
- Tries
- Try
- S(H);XS(e)
- Threat
- P=Q
- Vars
- S(d);OGATE,XP(F)::QAR1(A),XS(d)
- P(h);XR(D)::P=Q
- R(a);::P=Q
- R(c);::P=Q
- R(c);P_PINS(G)::P=Q
- B(b);P_PINR(D)::P=Q
- Refutation
- R(a);
- Try
- Q(A);CHECK
- Vars
- S(e);N_GUARD,P_SPINS(e)::QAB(A),XS(e)
- Refutation
- R(c);P_SPINR(c)
- Try
- Q(A);CHECK
- Vars
- S(e);N_GUARD,P_SPINS(e)::QAB(A),XS(e)
- Refutation
- R(c);XQ(A)
- Try
- Actual
- S(H);XP(h)
- Threat
- R1(D),XS(e)
- Vars
- S(d);OGATE,XP(F)::QAR1(A),XS(d)
- S(e);N_GUARD,XP(E)::P=Q
- B(b);N_GUARD,P_PINR(D)::P(C)
- B(b);OGATE,P_PINR(D)::P(B),XB(b)
- S(d);N_GUARD::P=S
- S(d);OGATE::PXS(d)=S
- S(e);N_GUARD::P=Q
- S(e);OGATE::PXS(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).