MESON Chess Problem Database
Problem Display
PID: 136493 (3q4/1b5Q/R2pN2B/3k1B2/2pP2N1/2rn4/1r1R4/3n1K2 w - - 0 1)
Burger, Robert Eugene
The Problemist, 2010
#2
9 + 9
SOLUTION
- SOUND
- Sets
- 1...Qa5
- 2.Sf6#
- 1...Qf6
- 2.Sxf6#
- 1...Qc7
- 2.Sf6#
- 1...Qd7
- 2.Sf6#
- 1...Qa8
- 2.Sf6#
- 1...Qb8
- 2.Sf6#
- 1...Qc8
- 2.Sf6#
- 1...Qe8
- 2.Sf6#
- 1...Qg8
- 2.Sf6#
- 1...Ra2
- 2.Qxb7#
- 1...Rbc2
- 2.Qxb7#
- 1...Rxd2
- 2.Qxb7#
- 1...S1f2
- 2.Se3#
- 1...Se3+
- 2.Sxe3#
- 1...Sc1
- 2.Sf4#
- 1...Se1
- 2.Sf4#
- 1...S3f2
- 2.Sf4#
- 1...Sb4
- 2.Sf4#
- 1...Sf4
- 2.Sxf4#
- 1...Sc5
- 2.Sf4#
- 1...Se5
- 2.Sf4#
- 1...Qa5
- Tries
- 1.Be3?
- threat
- 2.Qh1#
- 1...Sxe3+
- 2.Sxe3#
- 1...Rxd2
- 2.Qxb7#
- 1...Qh4
- 2.Sc7#
- 1...Qh8
- 2.Sc7#
- 1...Se1
- 2.Sf4#
- 1...S3f2
- 2.Sf4#
- 1...Sf4
- 2.Sxf4#
- 1...Sc5
- 2.Sf4#
- 1...Se5
- 2.Sf4#
- 1...S1f2!
- threat
- 1.Bg5?
- threat
- 2.Qh1#
- 1...Se3+
- 2.Sxe3#
- 1...Rxd2
- 2.Qxb7#
- 1...S1f2
- 2.Se3#
- 1...Sc1
- 2.Sf4#
- 1...Se1
- 2.Sf4#
- 1...S3f2
- 2.Sf4#
- 1...Sb4
- 2.Sf4#
- 1...Sf4
- 2.Sxf4#
- 1...Sc5
- 2.Sf4#
- 1...Se5
- 2.Sf4#
- 1...Qh8!
- threat
- 1.Bg7?
- threat
- 2.Qh1#
- 1...Se3+
- 2.Sxe3#
- 1...Qh4
- 2.Sc7#
- 1...Qh8
- 2.Sf6#
- 2.Sc7#
- 1...S1f2
- 2.Se3#
- 1...Sc1
- 2.Sf4#
- 1...Se1
- 2.Sf4#
- 1...S3f2
- 2.Sf4#
- 1...Sb4
- 2.Sf4#
- 1...Sf4
- 2.Sxf4#
- 1...Sc5
- 2.Sf4#
- 1...Se5
- 2.Sf4#
- 1...Rxd2!
- threat
- 1.Qg6?
- threat
- 2.Be4#
- 1...Se3+
- 2.Sxe3#
- 1...Qf6
- 2.Sxf6#
- 1...S1f2
- 2.Se3#
- 1...S3f2
- 2.Sf4#
- 1...Sc5
- 2.Sf4#
- 1...Qf8!
- threat
- 1.Be3?
- Keys
- 1.Bf8!
- threat
- 2.Qh1#
- 1...Se3+
- 2.Sxe3#
- 1...Rxd2
- 2.Qxb7#
- 1...Qh4
- 2.Rxd6#
- 1...S1f2
- 2.Se3#
- 1...Sc1
- 2.Sf4#
- 1...Se1
- 2.Sf4#
- 1...S3f2
- 2.Sf4#
- 1...Sb4
- 2.Sf4#
- 1...Sf4
- 2.Sxf4#
- 1...Sc5
- 2.Sf4#
- 1...Se5
- 2.Sf4#
- threat
- 1.Bf8!
FEATURES
- Static
- TYPE = THREAT
- CHANGED MATES = 0
- ADDED MATES = 1
- REMOVED MATES = 11
- Sets
- Q(i);N_GUARD::S(D)
- Q(i);N_GUARD,P_PINB(E)::S(D),XQ(i)
- R(b);N_GUARD::QAB(I),XB(h)
- R(b);N_GUARD,XR(B)::QAB(I),XB(h)
- S(a);N_GUARD::S(D)
- S(a);CHECK,N_GUARD::S(D),XS(a)
- S(d);N_GUARD::S(G)
- S(d);N_GUARD::S(G),XS(d)
- Tries
- Try
- B(H);
- Threat
- QAB(I)
- Vars
- S(a);CHECK,XB(H)::S(D),XS(a)
- R(b);N_GUARD,XR(B)::QAB(I),XB(h)
- Q(i);N_GUARD::S(G)
- S(d);N_GUARD::S(G)
- S(d);N_GUARD::S(G),XS(d)
- Refutation
- S(a);
- Try
- B(H);
- Threat
- QAB(I)
- Vars
- S(a);CHECK,N_GUARD::S(D),XS(a)
- R(b);N_GUARD,XR(B)::QAB(I),XB(h)
- S(a);N_GUARD::S(D)
- S(d);N_GUARD::S(G)
- S(d);N_GUARD::S(G),XS(d)
- Refutation
- Q(i);
- Try
- B(H);
- Threat
- QAB(I)
- Vars
- S(a);CHECK,N_GUARD::S(D),XS(a)
- Q(i);N_GUARD::S(G)
- S(a);N_GUARD::S(D)
- S(d);N_GUARD::S(G)
- S(d);N_GUARD::S(G),XS(d)
- Refutation
- R(b);XR(B)
- Try
- Q(I);
- Threat
- B(E)
- Vars
- S(a);CHECK,N_GUARD::S(D),XS(a)
- Q(i);N_GUARD,P_PINB(E)::S(D),XQ(i)
- S(a);N_GUARD::S(D)
- S(d);N_GUARD::S(G)
- Refutation
- Q(i);P_PINB(E)
- Try
- Actual
- B(H);
- Threat
- QAB(I)
- Vars
- S(a);CHECK,N_GUARD::S(D),XS(a)
- R(b);N_GUARD,XR(B)::QAB(I),XB(h)
- Q(i);N_GUARD::R1(F),XP(g)
- S(a);N_GUARD::S(D)
- S(d);N_GUARD::S(G)
- S(d);N_GUARD::S(G),XS(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).