MESON Chess Problem Database
Problem Display
PID: 47309 (5B2/8/4Q3/1b6/2p5/1k6/7R/5K2 w - - 0 1)
McDowell, Michael
Deutsche Schachzeitung, 1986
#2
4 + 3
| 4883 | Still More Fun with Chess Miniatures | 2002 |
| 136 | Problem Observer | 2012 |
SOLUTION
- SOUND
- Sets
- 1...Kc3
- 2.Qe3#
- 1...Kc3
- Tries
- 1.Qh3+?
- 1...Ka4
- 2.Ra2#
- 2.Qa3#
- 1...c3+!
- 1...Ka4
- 1.Qe1?
- threat
- 2.Qb4#
- 1...Ka4
- 2.Qb4#
- 1...c3+!
- threat
- 1.Qe3+?
- 1...Ka4
- 2.Ra2#
- 2.Qa3#
- 1...c3+!
- 1...Ka4
- 1.Qb6?
- 1...c3+
- 2.Qxb5#
- 1...Kc3
- 2.Qe3#
- 1...Ka4!
- 1...c3+
- 1.Qe7?
- threat
- 2.Qa3#
- 2.Qb4#
- 1...Kc3
- 2.Qe3#
- 1...Ka4
- 2.Qa3#
- 2.Qb4#
- 1...c3+!
- threat
- 1.Qh3+?
- Keys
- 1.Qe2!
- threat
- 2.Qc2#
- 1...Kc3
- 2.Qe3#
- 1...Ka4
- 2.Qa2#
- 1...c3
- 2.Qxb5#
- threat
- 1.Qe2!
FEATURES
- Static
- TYPE = THREAT
- CHANGED MATES = 0
- ADDED MATES = 2
- REMOVED MATES = 0
- Sets
- K(a);N_SPINP(b),P-FLIGHT::QAR2(C)
- Tries
- Try
- Q(C);CHECK,N_PINP(b)
- Refutation
- P(b);CHECK,P_SPINP(b)
- Try
- Q(C);N_PINP(b)
- Threat
- QAR1(C)
- Vars
- K(a);S_FLIGHT::QAR1(C)
- Refutation
- P(b);CHECK
- Try
- Q(C);CHECK,N_PINP(b)
- Refutation
- P(b);CHECK,P_SPINP(b)
- Try
- Q(C);N_PINP(b),P_PINB(c)
- Vars
- P(b);CHECK,SBLOCK::QAR2(C),XB(c)
- K(a);N_SPINB(c),P-FLIGHT::QAR2(C)
- Refutation
- K(a);N_SPINB(c),S_FLIGHT
- Try
- Q(C);N_PINP(b)
- Threat
- DUALS(2)
- Vars
- K(a);P-FLIGHT::QAR2(C)
- Refutation
- P(b);CHECK
- Try
- Actual
- Q(C);N_PINP(b)
- Threat
- QAB1(C)
- Vars
- K(a);P-FLIGHT::QAR2(C)
- K(a);S_FLIGHT::QAR2(C)
- P(b);OGATE,P_PINQ(C),SBLOCK::QAR2(C),XB(c)
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).