MESON Chess Problem Database
Problem Display
PID: 119870 (6K1/8/8/3Q4/6p1/7k/5PR1/5r1q w - - 0 1)
Wurzburg, Otto
Pittsburgh Gazette-Times, 1913
#2
4 + 4
| 6490 | yacpdb | 2009 |
SOLUTION
- SOUND
- Sets
- 1...Qxg2
- 2.Qh5#
- 1...Qxg2
- Tries
- 1.Rg3+?
- 1...Kh2
- 2.Qh5#
- 1...Kh4!
- 1...Kh2
- 1.Qb3+?
- 1...Kxg2
- 2.Qg3#
- 1...g3
- 2.Qxg3#
- 1...Kh4!
- 1...Kxg2
- 1.Qf3+?
- 1...Kh4
- 2.Qxg4#
- 1...g3
- 2.Qxg3#
- 1...gxf3!
- 1...Kh4
- 1.Qe4?
- threat
- 2.Qxg4#
- 1...Kh4
- 2.Qxg4#
- 1...Qxg2
- 2.Qh7#
- 1...g3!
- threat
- 1.Qe6?
- threat
- 2.Qxg4#
- 1...Kh4
- 2.Qxg4#
- 2.Qh6#
- 1...Qxg2
- 2.Qh6#
- 1...Kxg2!
- threat
- 1.Qd3+?
- 1...Kxg2
- 2.Qg3#
- 1...g3
- 2.Qxg3#
- 1...Kh4!
- 1...Kxg2
- 1.Qe5?
- threat
- 2.Qg3#
- 1...Kxg2
- 2.Qg3#
- 1...Qxg2
- 2.Qh8#
- 2.Qh5#
- 1...g3
- 2.Qxg3#
- 1...Qh2
- 2.Rxh2#
- 2.Qxh2#
- 1...Kh4!
- threat
- 1.Qf5?
- threat
- 2.Qxg4#
- 1...Kh4
- 2.Qxg4#
- 1...Qxg2
- 2.Qh7#
- 2.Qh5#
- 1...Kxg2!
- threat
- 1.Qg5?
- threat
- 2.Qxg4#
- 1...Qxg2
- 2.Qh6#
- 2.Qh5#
- 1...g3
- 2.Qxg3#
- 1...Kxg2!
- threat
- 1.Qd7?
- threat
- 2.Qxg4#
- 1...Kh4
- 2.Qxg4#
- 1...Qxg2
- 2.Qh7#
- 1...Kxg2!
- threat
- 1.Rg3+?
- Keys
- 1.Qd6!
- threat
- 2.Qg3#
- 1...Kxg2
- 2.Qg3#
- 1...Kh4
- 2.Qh6#
- 1...Qxg2
- 2.Qh6#
- 1...g3
- 2.Qxg3#
- 1...Qh2
- 2.Rxh2#
- 2.Qxh2#
- threat
- 1.Qd6!
FEATURES
- Static
- TYPE = THREAT
- CHANGED MATES = 1
- ADDED MATES = 3
- REMOVED MATES = 0
- Sets
- Q(b);SBLOCK,XR(B)::QAR2(C)
- Tries
- Try
- R(B);CHECK
- Vars
- K(c);P-FLIGHT::QAR(C)
- Refutation
- K(c);P-FLIGHT
- Try
- Q(C);CHECK
- Vars
- K(c);S_FLIGHT,XR(B)::QAR1(C)
- P(d);P_SPINP(d)::QAR1(C),XP(d)
- Refutation
- K(c);P-FLIGHT
- Try
- Q(C);CHECK
- Vars
- K(c);P-FLIGHT::QAR1(C),XP(d)
- P(d);P_SPINP(d)::QAR1(C),XP(d)
- Refutation
- P(d);XQ(C)
- Try
- Q(C);
- Threat
- QAB1(C),XP(d)
- Vars
- K(c);P-FLIGHT,P_SPINP(d)::QAR1(C),XP(d)
- Q(b);SBLOCK,XR(B)::QAR(C)
- Refutation
- P(d);
- Try
- Q(C);P_PINP(d)
- Threat
- QAB1(C),XP(d)
- Vars
- Q(b);SBLOCK,XR(B)::QAR(C)
- Refutation
- K(c);N_SPINP(d),S_FLIGHT,XR(B)
- Try
- Q(C);CHECK
- Vars
- K(c);S_FLIGHT,XR(B)::QAR1(C)
- P(d);P_SPINP(d)::QAR1(C),XP(d)
- Refutation
- K(c);P-FLIGHT
- Try
- Q(C);
- Threat
- QAR1(C)
- Vars
- K(c);S_FLIGHT,XR(B)::QAR1(C)
- P(d);::QAR1(C),XP(d)
- Refutation
- K(c);P-FLIGHT
- Try
- Q(C);P_PINP(d)
- Threat
- QAB1(C),XP(d)
- Vars
- K(c);N_SPINP(d),P-FLIGHT::QAR1(C),XP(d)
- Refutation
- K(c);N_SPINP(d),S_FLIGHT,XR(B)
- Try
- Q(C);
- Threat
- QAB1(C),XP(d)
- Vars
- P(d);OGATE::QAR1(C),XP(d)
- Refutation
- K(c);P_SPINP(d),S_FLIGHT,XR(B)
- Try
- Q(C);P_PINP(d)
- Threat
- QAB1(C),XP(d)
- Vars
- K(c);N_SPINP(d),P-FLIGHT::QAR1(C),XP(d)
- Q(b);SBLOCK,XR(B)::QAR(C)
- Refutation
- K(c);N_SPINP(d),S_FLIGHT,XR(B)
- Try
- Actual
- Q(C);
- Threat
- QAR1(C)
- Vars
- K(c);S_FLIGHT,XR(B)::QAR1(C)
- K(c);P-FLIGHT::QAR2(C)
- Q(b);SBLOCK,XR(B)::QAR(C)
- P(d);::QAR1(C),XP(d)
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).