MESON Chess Problem Database
Problem Display
PID: 10744 (2Q3B1/B2p4/2q5/8/bp6/1Pk5/6R1/4N2K w - - 0 1)
Fenner, A Jack
The Problemist, 1967
#2
7 + 5
| 5454 | Near Snap | 2007 |
SOLUTION
- SOUND
- Sets
- 1...Qc4
- 2.Qxc4#
- 1...Qc5
- 2.Qxc5#
- 1...Qc7
- 2.Rc2#
- 1...Qxc8
- 2.Rc2#
- 1...d5
- 2.Qh3#
- 1...Qc4
- Tries
- 1.Kg1?
- threat
- 2.Rc2#
- 1...Qc5+
- 2.Qxc5#
- 1...Qc4
- 2.Qxc4#
- 1...d5
- 2.Qh3#
- 1...Bxb3!
- threat
- 1.Bd5?
- threat
- 2.Rc2#
- 1...Qc4
- 2.Qxc4#
- 1...Qc5
- 2.Qxc5#
- 1...Bxb3!
- threat
- 1.Qxc6+?
- 1...dxc6
- 2.Rc2#
- 1...Bxc6!
- 1...dxc6
- 1.Kg1?
- Keys
- 1.Qc7!
- threat
- 2.Qe5#
- 1...Qxc7
- 2.Rc2#
- 1...Qc4
- 2.Qxc4#
- 1...Qc5
- 2.Qxc5#
- 1...d5
- 2.Qg3#
- 1...d6
- 2.Qg7#
- threat
- 1.Qc7!
Anticipated by 21162(1917)
FEATURES
- Static
- TYPE = THREAT
- CHANGED MATES = 1
- ADDED MATES = 1
- REMOVED MATES = 1
- Sets
- Q(d);N_PINR(C),OGATE::QAR1(F),XQ(d)
- Q(d);N_PINR(C),OGATE::QAR2(F),XQ(d)
- Q(d);N_PINR(C)::R1(C)
- Q(d);N_PINR(C),N_SPINQ(d),XQ(F)::R1(C)
- P(e);N_PINR(C),OGATE::QAR(F)
- Tries
- Try
- K(B);N_SPINR(C),P-FLIGHT
- Threat
- R1(C)
- Vars
- Q(d);CHECK,OGATE::QAR2(F),XQ(d)
- Q(d);OGATE::QAR1(F),XQ(d)
- P(e);OGATE::QAR(F)
- Refutation
- B(b);XP(D)
- Try
- B(G);N_SPINR(C)
- Threat
- R1(C)
- Vars
- Q(d);OGATE::QAR1(F),XQ(d)
- Q(d);OGATE::QAR2(F),XQ(d)
- Refutation
- B(b);XP(D)
- Try
- Q(F);CHECK,N_SPINR(C),XQ(d)
- Vars
- P(e);XQ(F)::R1(C)
- Refutation
- B(b);P_PINR(C),XQ(F)
- Try
- Actual
- Q(F);
- Threat
- QAB(F)
- Vars
- Q(d);N_PINR(C),N_SPINQ(d),XQ(F)::R1(C)
- Q(d);N_PINR(C),OGATE::QAR1(F),XQ(d)
- Q(d);N_PINR(C),OGATE::QAR2(F),XQ(d)
- P(e);N_PINR(C)::QAR(F)
- P(e);OGATE::QAB(F)
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).