MESON Chess Problem Database
Problem Display
PID: 158192 (8/2PPkP2/3N1N2/8/1K2B2P/8/8/6Q1 w - - 0 1)
Back, Par-Erik
Thema Danicum, 1978
#2
9 + 1
| 15148 | Sadier Collection | 2016 |
SOLUTION
- SOUND
- Sets
- 1...Kf8
- 2.d8Q#
- 1...Kf8
- Tries
- 1.Bd5?
- threat
- 2.d8Q#
- 1...Kxf6
- 2.Qg5#
- 1...Kf8
- 2.d8Q#
- 1...Kxd6!
- threat
- 1.Bf5?
- threat
- 2.d8Q#
- 1...Kxd6
- 2.Qc5#
- 1...Kf8
- 2.d8Q#
- 1...Kxf6!
- threat
- 1.d8S?
- 1...Kxd6
- 2.Qc5#
- 1...Kxf6
- 2.Qg5#
- 1...Kf8!
- 1...Kxd6
- 1.f8Q+?
- 1...Kxf8
- 2.d8Q#
- 1...Ke6!
- 1...Kxf8
- 1.Bd5?
- Keys
- 1.f8S!
- threat
- 2.d8Q#
- 1...Kxd6
- 2.Qc5#
- 1...Kxf6
- 2.Qg5#
- 1...Kxf8
- 2.d8Q#
- threat
- 1.f8S!
FEATURES
- Static
- TYPE = THREAT
- CHANGED MATES = 0
- ADDED MATES = 2
- REMOVED MATES = 0
- Sets
- K(a);S_FLIGHT::P=Q
- Tries
- Try
- B(C);
- Threat
- P=Q
- Vars
- K(a);OGATEB,S_FLIGHT,XS(F)::QAB1(A)
- K(a);S_FLIGHT::P=Q
- Refutation
- K(a);S_FLIGHT,XS(E)
- Try
- B(C);
- Threat
- P=Q
- Vars
- K(a);OGATEB,S_FLIGHT,XS(E)::QAB1(A)
- K(a);S_FLIGHT::P=Q
- Refutation
- K(a);S_FLIGHT,XS(F)
- Try
- P(H);
- Vars
- K(a);OGATEB,S_FLIGHT,XS(E)::QAB1(A)
- K(a);OGATEB,S_FLIGHT,XS(F)::QAB1(A)
- Refutation
- K(a);S_FLIGHT
- Try
- P(I);CHECK
- Vars
- K(a);S_FLIGHT,XQ(I)::P=Q
- Refutation
- K(a);P-FLIGHT
- Try
- Actual
- P(I);
- Threat
- P=Q
- Vars
- K(a);OGATEB,S_FLIGHT,XS(E)::QAB1(A)
- K(a);OGATEB,S_FLIGHT,XS(F)::QAB1(A)
- K(a);S_FLIGHT,XS(I)::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).