MESON Chess Problem Database

Problem Display
PID: 80322 (3q1n2/Q4B2/3p2R1/3N1kN1/6p1/2p2pB1/4b3/1nb4K w - - 0 1)

Rice, John Michael

6th Comm., Mat Plus, 1996

3q1n2/Q4B2/3p2R1/3N1kN1/6p1/2p2pB1/4b3/1nb4K

#2

7 + 10

5929 Mat Plus Special Issue 2006

SOLUTION

  • SOUND
  • Sets
    • 1...Qa5
      • 2.Se7#
    • 1...Qb6
      • 2.Se7#
    • 1...Qe7
      • 2.Sxe7#
    • 1...Qa8
      • 2.Se7#
    • 1...Qb8
      • 2.Se7#
    • 1...Qc8
      • 2.Se7#
    • 1...Bb2
      • 2.Se3#
    • 1...Ba3
      • 2.Se3#
    • 1...Be3
      • 2.Sxe3#
    • 1...Sd2
      • 2.Se3#
  • Tries
    • 1.Qe7?
      • threat
        • 2.Qe4#
      • 1...Qxe7
        • 2.Sxe7#
      • 1...Bxg5
        • 2.Rxg5#
      • 1...Sxg6
        • 2.Be6#
      • 1...Qe8
        • 2.Qf6#
      • 1...Sd2
        • 2.Se3#
      • 1...Se6
        • 2.Qxe6#
      • 1...Bd3!
  • Keys
    • 1.Qe3!
      • threat
        • 2.Qe4#
      • 1...Qxg5
        • 2.Rxg5#
      • 1...Bxe3
        • 2.Sxe3#
      • 1...Sxg6
        • 2.Be6#
      • 1...Qe7
        • 2.Sxe7#
      • 1...Qe8
        • 2.Rf6#
      • 1...Bd3
        • 2.Qxd3#
      • 1...Sd2
        • 2.Qf4#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 1
    • ADDED MATES = 4
    • REMOVED MATES = 7
  • Sets
    • Q(i);N_GUARD::S(C)
    • Q(i);N_GUARD::S(C),XQ(i)
    • B(b);N_GUARD::S(C)
    • B(b);N_GUARD::S(C),XB(b)
    • S(a);S_CUTB(b)::S(C)
  • Tries
    • Try
      • Q(F);
      • Threat
        • QAB1(F)
      • Vars
        • Q(i);XQ(F)::S(C),XQ(i)
        • B(b);OGATE,XS(D)::R1(E),XB(b)
        • S(j);N_GUARD,SBLOCK,XR(E)::B(G)
        • Q(i);N_GUARD::QAR1(F)
        • S(a);S_CUTB(b)::S(C)
        • S(j);N_GUARD::QAB1(F),XS(j)
      • Refutation
        • B(c);
  • Actual
    • Q(F);
    • Threat
      • QAB1(F)
    • Vars
      • Q(i);OGATE,XS(D)::R1(E),XQ(i)
      • B(b);XQ(F)::S(C),XB(b)
      • S(j);N_GUARD,SBLOCK,XR(E)::B(G)
      • Q(i);N_GUARD::S(C),XQ(i)
      • Q(i);N_GUARD::R1(E)
      • B(c);N_GUARD::QAB(F),XB(c)
      • S(a);S_CUTB(b)::QAR1(F)
HTML5 logo

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).