MESON Chess Problem Database
Problem Display
PID: 227844 (8/5K2/8/4pk2/5P2/5Q1P/5P2/8 w - - 0 1)
Nagy, Odon
Onitiu, Valerian
Magyar Sakkvilag, 1926
#2
5 + 2
| 6490 | yacpdb | 2020 |
SOLUTION
- SOUND
- Sets
- 1...exf4
- 2.Qd5#
- 1...e4
- 2.Qg4#
- 1...exf4
- Tries
- 1.Kg7?
- 1...exf4
- 2.Qd5#
- 1...e4
- 2.Qg4#
- 1...Ke6!
- 1...exf4
- 1.Qd1?
- 1...Kxf4
- 2.Qg4#
- 1...exf4
- 2.Qd5#
- 1...e4
- 2.Qg4#
- 1...Ke4!
- 1...Kxf4
- 1.Qe2?
- threat
- 2.Qxe5#
- 1...Kxf4
- 2.Qg4#
- 1...e4
- 2.Qg4#
- 1...exf4!
- threat
- 1.Qh5+?
- 1...Kxf4
- 2.Qg4#
- 1...Ke4!
- 1...Kxf4
- 1.Qc6?
- 1...exf4
- 2.Qd5#
- 1...e4
- 2.Qf6#
- 1...Kxf4!
- 1...exf4
- 1.Kg7?
- Keys
- 1.Qg2!
- 1...Kxf4
- 2.Qg4#
- 1...exf4
- 2.Qd5#
- 1...e4
- 2.Qg4#
- 2.Qg5#
- 1...Kxf4
- 1.Qg2!
FEATURES
- Static
- TYPE = WAITER
- CHANGED MATES = 0
- ADDED MATES = 1
- REMOVED MATES = 1
- Sets
- P(a);OGATEB,P_SPINP(a),SBLOCK,XP(D)::QAR2(B)
- P(a);SBLOCK::QAB1(B)
- Tries
- Try
- K(E);P-FLIGHT
- Vars
- P(a);OGATEB,P_SPINP(a),SBLOCK,XP(D)::QAR2(B)
- P(a);SBLOCK::QAB1(B)
- Refutation
- K(b);S_FLIGHT
- Try
- Q(B);
- Vars
- K(b);P-FLIGHT,XP(D)::QAR1(B)
- P(a);OGATEB,SBLOCK,XP(D)::QAR2(B)
- P(a);SBLOCK::QAB1(B)
- Refutation
- K(b);S_FLIGHT
- Try
- Q(B);
- Threat
- QAR1(B),XP(a)
- Vars
- K(b);P-FLIGHT,XP(D)::QAR1(B)
- P(a);SBLOCK::QAB1(B)
- Refutation
- P(a);XP(D)
- Try
- Q(B);CHECK
- Vars
- K(b);P-FLIGHT,XP(D)::QAR1(B)
- Refutation
- K(b);S_FLIGHT
- Try
- Q(B);
- Vars
- P(a);OGATEB,SBLOCK,XP(D)::QAR2(B)
- P(a);SBLOCK::QAR1(B)
- Refutation
- K(b);P-FLIGHT,XP(D)
- Try
- Actual
- Q(B);
- Vars
- K(b);P-FLIGHT,XP(D)::QAR1(B)
- P(a);OGATEB,SBLOCK,XP(D)::QAR2(B)
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).