MESON Chess Problem Database
Problem Display
PID: 37594 (R5n1/2p1BkPR/2N3n1/4p3/5p1p/QK5B/8/8 w - - 0 1)
Mettler, Josef
Schweizerische Schachzeitung, 1969
#2
8 + 7
| 3690 | Kunstschach in der Schweiz | 1980 |
SOLUTION
- SOUND
- Sets
- 1...Sf8
- 2.Sxe5#
- 2.gxf8S#
- 1...Sh8
- 2.Sxe5#
- 2.gxh8S#
- 1...Sf6
- 2.g8Q#
- 2.g8B#
- 1...Sh6
- 2.g8Q#
- 2.g8S#
- 2.g8B#
- 2.g8R#
- 1...Sxe7
- 2.g8S#
- 1...Sf8
- Tries
- 1.Ka2?
- threat
- 2.Qb3#
- 1...S8xe7
- 2.g8S#
- 1...Sf8
- 2.Sxe5#
- 2.gxf8S#
- 1...Sh8
- 2.Sxe5#
- 2.gxh8S#
- 1...Sf6
- 2.g8Q#
- 2.g8B#
- 1...S6xe7!
- threat
- 1.Kb2?
- threat
- 2.Qa2#
- 2.Qb3#
- 1...S8xe7
- 2.g8S#
- 1...Sf8
- 2.Sxe5#
- 2.gxf8S#
- 1...Sh8
- 2.Sxe5#
- 2.gxh8S#
- 1...Sf6
- 2.g8Q#
- 2.g8B#
- 1...S6xe7!
- threat
- 1.Kc2?
- threat
- 2.Qa2#
- 2.Qb3#
- 1...S8xe7
- 2.g8S#
- 1...Sf8
- 2.Sxe5#
- 2.gxf8S#
- 1...Sh8
- 2.Sxe5#
- 2.gxh8S#
- 1...Sf6
- 2.g8Q#
- 2.g8B#
- 1...S6xe7!
- threat
- 1.Kc3?
- threat
- 2.Qa2#
- 2.Qb3#
- 1...S8xe7
- 2.g8S#
- 1...Sf8
- 2.Sxe5#
- 2.gxf8S#
- 1...Sh8
- 2.Sxe5#
- 2.gxh8S#
- 1...Sf6
- 2.g8Q#
- 2.g8B#
- 1...S6xe7!
- threat
- 1.Ka4?
- threat
- 2.Qa2#
- 2.Qb3#
- 1...S8xe7
- 2.g8S#
- 1...Sf8
- 2.Sxe5#
- 2.gxf8S#
- 1...Sh8
- 2.Sxe5#
- 2.gxh8S#
- 1...Sf6
- 2.g8Q#
- 2.g8B#
- 1...S6xe7!
- threat
- 1.Kb4?
- threat
- 2.Qa2#
- 2.Qb3#
- 1...S8xe7
- 2.g8S#
- 1...Sf8
- 2.gxf8S#
- 1...Sh8
- 2.gxh8S#
- 1...Sf6
- 2.g8Q#
- 2.g8B#
- 1...S6xe7!
- threat
- 1.Bd7?
- threat
- 2.Sd8#
- 1...S8xe7
- 2.g8S#
- 1...Sf8
- 2.Sxe5#
- 2.gxf8S#
- 1...Sh8
- 2.Sxe5#
- 2.gxh8S#
- 1...Sf6
- 2.g8Q#
- 2.g8B#
- 1...Sh6
- 2.g8Q#
- 2.g8S#
- 2.g8B#
- 2.g8R#
- 1...S6xe7!
- threat
- 1.Qc1?
- threat
- 2.Qc4#
- 1...S8xe7
- 2.g8S#
- 1...Sf8
- 2.gxf8S#
- 1...Sh8
- 2.gxh8S#
- 1...Sf6
- 2.g8Q#
- 2.g8B#
- 1...S6xe7!
- threat
- 1.Qb4?
- threat
- 2.Qc4#
- 1...S8xe7
- 2.g8S#
- 1...Sf8
- 2.Sxe5#
- 2.gxf8S#
- 1...Sh8
- 2.Sxe5#
- 2.gxh8S#
- 1...Sf6
- 2.g8Q#
- 2.g8B#
- 1...S6xe7!
- threat
- 1.Qc5?
- threat
- 2.Qc4#
- 2.Qd5#
- 1...S8xe7
- 2.g8S#
- 1...Sf8
- 2.Sxe5#
- 2.gxf8S#
- 1...Sh8
- 2.Sxe5#
- 2.gxh8S#
- 1...Sf6
- 2.g8Q#
- 2.g8B#
- 1...S6xe7!
- threat
- 1.Qd6?
- threat
- 2.Be6#
- 2.Qd5#
- 2.Qe6#
- 1...S6xe7
- 2.Sxe5#
- 2.Rf8#
- 2.Qe6#
- 1...S8xe7
- 2.Qe6#
- 2.g8Q#
- 2.g8S#
- 2.g8B#
- 2.g8R#
- 1...Sf8
- 2.Sxe5#
- 2.Rxf8#
- 2.gxf8Q#
- 2.gxf8S#
- 2.gxf8B#
- 2.gxf8R#
- 1...Sh8
- 2.Sxe5#
- 2.Rf8#
- 2.Qe6#
- 2.gxh8Q#
- 2.gxh8S#
- 2.gxh8B#
- 2.gxh8R#
- 1...Sf6
- 2.Be6#
- 2.Qe6#
- 2.Qxf6#
- 2.g8Q#
- 2.g8B#
- 1...cxd6!
- threat
- 1.Qa2?
- threat
- 2.Kb2#
- 2.Kc2#
- 2.Ka3#
- 2.Kc3#
- 2.Ka4#
- 2.Kb4#
- 1...S8xe7
- 2.g8S#
- 1...Sf8
- 2.gxf8S#
- 1...Sh8
- 2.gxh8S#
- 1...Sf6
- 2.g8Q#
- 2.g8B#
- 1...S6xe7!
- threat
- 1.Qa4?
- threat
- 2.Qc4#
- 1...S8xe7
- 2.g8S#
- 1...Sf8
- 2.gxf8S#
- 1...Sh8
- 2.gxh8S#
- 1...Sf6
- 2.g8Q#
- 2.g8B#
- 1...S6xe7!
- threat
- 1.Qa5?
- threat
- 2.Qd5#
- 1...S8xe7
- 2.g8S#
- 1...Sf8
- 2.gxf8S#
- 1...Sh8
- 2.gxh8S#
- 1...Sf6
- 2.g8Q#
- 2.g8B#
- 1...S6xe7!
- threat
- 1.Ka2?
- Keys
- 1.Qa6!
- threat
- 2.Qc4#
- 1...S6xe7
- 2.Sxe5#
- 1...S8xe7
- 2.g8S#
- 1...Sf8
- 2.gxf8S#
- 1...Sh8
- 2.gxh8S#
- 1...Sf6
- 2.g8Q#
- 2.g8B#
- threat
- 1.Qa6!
FEATURES
- Static
- TYPE = THREAT
- CHANGED MATES = 0
- ADDED MATES = 3
- REMOVED MATES = 0
- Sets
- S(g);OGATE::P=Q
- S(g);OGATE,XB(E)::P=S
- Tries
- Try
- K(B);S_FLIGHT
- Threat
- QAB(A)
- Vars
- S(g);OGATE,XB(E)::P=S
- S(g);OGATE::P=Q
- Refutation
- S(d);XB(E)
- Try
- K(B);P-FLIGHT
- Threat
- DUALS(2)
- Vars
- S(g);OGATE,XB(E)::P=S
- S(g);OGATE::P=Q
- Refutation
- S(d);XB(E)
- Try
- K(B);S_FLIGHT
- Threat
- DUALS(2)
- Vars
- S(g);OGATE,XB(E)::P=S
- S(g);OGATE::P=Q
- Refutation
- S(d);XB(E)
- Try
- K(B);P-FLIGHT
- Threat
- DUALS(2)
- Vars
- S(g);OGATE,XB(E)::P=S
- S(g);OGATE::P=Q
- Refutation
- S(d);XB(E)
- Try
- K(B);S_FLIGHT
- Threat
- DUALS(2)
- Vars
- S(g);OGATE,XB(E)::P=S
- S(g);OGATE::P=Q
- Refutation
- S(d);XB(E)
- Try
- K(B);P-FLIGHT
- Threat
- DUALS(2)
- Vars
- S(g);OGATE,XB(E)::P=S
- S(d);OGATE::PXS(d)=S
- S(g);OGATE::P=Q
- Refutation
- S(d);XB(E)
- Try
- B(C);
- Threat
- S(D)
- Vars
- S(g);OGATE,XB(E)::P=S
- S(g);OGATE::P=Q
- Refutation
- S(d);XB(E)
- Try
- Q(A);
- Threat
- QAB(A)
- Vars
- S(g);OGATE,XB(E)::P=S
- S(d);OGATE::PXS(d)=S
- S(g);OGATE::P=Q
- Refutation
- S(d);XB(E)
- Try
- Q(A);
- Threat
- QAB(A)
- Vars
- S(g);OGATE,XB(E)::P=S
- S(g);OGATE::P=Q
- Refutation
- S(d);XB(E)
- Try
- Q(A);
- Threat
- DUALS(2)
- Vars
- S(g);OGATE,XB(E)::P=S
- S(g);OGATE::P=Q
- Refutation
- S(d);XB(E)
- Try
- Q(A);
- Threat
- DUALS(3)
- Refutation
- P(e);XQ(A)
- Try
- Q(A);
- Threat
- DUALS(6)
- Vars
- S(g);OGATE,XB(E)::P=S
- S(d);OGATE::PXS(d)=S
- S(g);OGATE::P=Q
- Refutation
- S(d);XB(E)
- Try
- Q(A);
- Threat
- QAB(A)
- Vars
- S(g);OGATE,XB(E)::P=S
- S(d);OGATE::PXS(d)=S
- S(g);OGATE::P=Q
- Refutation
- S(d);XB(E)
- Try
- Q(A);
- Threat
- QAB(A)
- Vars
- S(g);OGATE,XB(E)::P=S
- S(d);OGATE::PXS(d)=S
- S(g);OGATE::P=Q
- Refutation
- S(d);XB(E)
- Try
- Actual
- Q(A);
- Threat
- QAB(A)
- Vars
- S(d);N_GUARD,SBLOCK,XB(E)::S(D),XP(c)
- S(g);OGATE,XB(E)::P=S
- S(d);OGATE::PXS(d)=S
- S(g);OGATE::P=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).