MESON Chess Problem Database
Problem Display
PID: 249397 (Q7/8/8/8/8/5R2/3K1PP1/5kr1 w - - 0 1)
Lebedev, Leonid Arsentevich
Uralski Problemist, 2000
#2
5 + 2
SOLUTION
- SOUND
- Sets
- 1...Rxg2
- 2.Qa1#
- 1...Rxg2
- Tries
- 1.Rg3?
- 1...Kxf2
- 2.Qf3#
- 1...Rxg2
- 2.Qxg2#
- 1...Rh1!
- 1...Kxf2
- 1.Rf4?
- 1...Rxg2
- 2.Qa1#
- 1...Rh1!
- 1...Rxg2
- 1.Rf5?
- 1...Rxg2
- 2.Qa1#
- 1...Rh1!
- 1...Rxg2
- 1.Rf6?
- 1...Rxg2
- 2.Qa1#
- 1...Rh1!
- 1...Rxg2
- 1.Rf7?
- 1...Rxg2
- 2.Qa1#
- 1...Rh1!
- 1...Rxg2
- 1.Rf8?
- 1...Rxg2
- 2.Qa1#
- 1...Rh1!
- 1...Rxg2
- 1.Qc8?
- 1...Kxg2
- 2.Qh3#
- 1...Rxg2
- 2.Qc1#
- 1...Rh1!
- 1...Kxg2
- 1.Rg3?
- Keys
- 1.Qh8!
- 1...Kxg2
- 2.Qh3#
- 1...Rxg2
- 2.Qa1#
- 1...Rh1
- 2.Qxh1#
- 1...Kxg2
- 1.Qh8!
FEATURES
- Static
- TYPE = INCOMPLETE_BLOCK
- CHANGED MATES = 0
- ADDED MATES = 2
- REMOVED MATES = 0
- Sets
- R(b);P_PINP(B),SBLOCK,XP(C)::QAR(E)
- Tries
- Try
- R(D);
- Vars
- K(a);OGATEB,P-FLIGHT,XP(B)::QAR1(E)
- R(b);OGATE,P_PINP(B),XP(C)::QAB1(E),XR(b)
- Refutation
- R(b);
- Try
- R(D);
- Vars
- R(b);P_PINP(B),SBLOCK,XP(C)::QAR(E)
- Refutation
- R(b);
- Try
- R(D);
- Vars
- R(b);P_PINP(B),SBLOCK,XP(C)::QAR(E)
- Refutation
- R(b);
- Try
- R(D);
- Vars
- R(b);P_PINP(B),SBLOCK,XP(C)::QAR(E)
- Refutation
- R(b);
- Try
- R(D);
- Vars
- R(b);P_PINP(B),SBLOCK,XP(C)::QAR(E)
- Refutation
- R(b);
- Try
- R(D);
- Vars
- R(b);P_PINP(B),SBLOCK,XP(C)::QAR(E)
- Refutation
- R(b);
- Try
- Q(E);
- Vars
- K(a);OGATEB,S_FLIGHT,XP(C)::QAB1(E)
- R(b);P_PINP(B),SBLOCK,XP(C)::QAR(E)
- Refutation
- R(b);
- Try
- Actual
- Q(E);
- Vars
- K(a);OGATEB,S_FLIGHT,XP(C)::QAB1(E)
- R(b);P_PINP(B),SBLOCK,XP(C)::QAR(E)
- R(b);OGATEB::QAR2(E),XR(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).