MESON Chess Problem Database
Problem Display
PID: 65822 (8/qpR1R3/PN1k1r2/5r2/8/3p4/1n1N1n2/1K4Q1 w - - 0 1)
Janev, Zoran
Phenix, 1999
#2
7 + 8
SOLUTION
- SOUND
- Sets
- 1...Rd5
- 2.Sc8#
- 1...Sbd1
- 2.Sdc4#
- 1...Sa4
- 2.Sdc4#
- 1...Sc4
- 2.Sdxc4#
- 1...Sfd1
- 2.Se4#
- 1...Sh1
- 2.Se4#
- 1...Sh3
- 2.Se4#
- 1...Se4
- 2.Sxe4#
- 1...Sg4
- 2.Se4#
- 1...Rd5
- Tries
- 1.Qh2+?
- 1...Re5
- 2.Qxe5#
- 1...Rf4!
- 1...Re5
- 1.Qc1?
- threat
- 2.Rcd7#
- 1...bxa6
- 2.Qc6#
- 1...Rc5
- 2.Qxc5#
- 1...Sc4
- 2.Sdxc4#
- 1...Re6!
- threat
- 1.Qg3+?
- 1...Re5
- 2.Qxe5#
- 1...Rf4!
- 1...Re5
- 1.Qh2+?
- Keys
- 1.Qe1!
- threat
- 2.Red7#
- 1...Re5
- 2.Qxe5#
- 1...Rf7
- 2.Qe6#
- 1...Se4
- 2.Sxe4#
- threat
- 1.Qe1!
FEATURES
- Static
- TYPE = THREAT
- CHANGED MATES = 0
- ADDED MATES = 2
- REMOVED MATES = 8
- Sets
- R(d);SBLOCK::S(E)
- S(a);N_GUARD::S(C)
- S(a);N_GUARD::S(C),XS(a)
- S(b);N_GUARD::S(C)
- S(b);N_GUARD::S(C),XS(b)
- Tries
- Try
- Q(B);CHECK
- Vars
- R(d);N_GUARD,P_SPINR(d)::QAB1(B),XR(d)
- Refutation
- R(d);P_SPINR(d)
- Try
- Q(B);
- Threat
- R1(F)
- Vars
- P(h);N_GUARD,XP(D)::QAR1(B)
- R(d);N_GUARD::QAB1(B),XR(d)
- S(a);N_GUARD::S(C),XS(a)
- Refutation
- R(f);
- Try
- Q(B);CHECK
- Vars
- R(d);N_GUARD,P_SPINR(d)::QAB1(B),XR(d)
- Refutation
- R(d);P_SPINR(d)
- Try
- Actual
- Q(B);
- Threat
- R1(G)
- Vars
- R(d);N_GUARD::QAB1(B),XR(d)
- R(f);N_GUARD::QAR1(B)
- S(b);N_GUARD::S(C),XS(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).