MESON Chess Problem Database
Problem Display
PID: 94511 (r7/p5pk/4P1R1/6P1/7K/8/2Q5/8 w - - 0 1)
Sova, Jakub
Ceskoslovenska republika, 1930
#2
5 + 4
| 6490 | yacpdb | 2009 |
SOLUTION
- SOUND
- Sets
- 1...Rg8
- 2.Rh6#
- 1...Rg8
- Tries
- 1.Rxg7+?
- 1...Kh8
- 2.Qh7#
- 1...Kxg7!
- 1...Kh8
- 1.Qb2?
- threat
- 2.Qxg7#
- 1...Kxg6
- 2.Qb1#
- 2.Qc2#
- 1...Kg8
- 2.Qxg7#
- 1...Kh8
- 2.Qxg7#
- 1...Rg8!
- threat
- 1.Qc3?
- threat
- 2.Qxg7#
- 1...Kxg6
- 2.Qc2#
- 2.Qd3#
- 1...Kg8
- 2.Qxg7#
- 1...Kh8
- 2.Qxg7#
- 1...Rg8!
- threat
- 1.Rxg7+?
- Keys
- 1.Qc7!
- threat
- 2.Qxg7#
- 1...Kxg6
- 2.Qc2#
- 1...Kg8
- 2.Qxg7#
- 1...Kh8
- 2.Qxg7#
- 1...Rg8
- 2.Rh6#
- threat
- 1.Qc7!
FEATURES
- Static
- TYPE = THREAT
- CHANGED MATES = 0
- ADDED MATES = 3
- REMOVED MATES = 0
- Sets
- R(d);SBLOCK::QAB(A)+R(E),DCHECK
- Tries
- Try
- R(E);CHECK,XP(b)
- Vars
- K(c);P-FLIGHT::QAR1(A)
- Refutation
- K(c);P-FLIGHT,XR(E)
- Try
- Q(A);
- Threat
- QAR1(A),XP(b)
- Vars
- K(c);P_SPINP(b),S_FLIGHT::QAR1(A),XP(b)
- K(c);P-FLIGHT,P_SPINP(b)::QAB1(A),XP(b)
- Refutation
- R(d);
- Try
- Q(A);
- Threat
- QAR1(A),XP(b)
- Vars
- K(c);P_SPINP(b),S_FLIGHT::QAR1(A),XP(b)
- K(c);P-FLIGHT,P_SPINP(b)::QAB1(A),XP(b)
- Refutation
- R(d);
- Try
- Actual
- Q(A);P_PINP(b)
- Threat
- QAR1(A),XP(b)
- Vars
- K(c);N_SPINP(b),OGATEB,S_FLIGHT,XR(E)::QAB(A)
- K(c);S_FLIGHT::QAR1(A),XP(b)
- K(c);N_SPINP(b),P-FLIGHT::QAB1(A),XP(b)
- R(d);SBLOCK::R1(E)
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).