MESON Chess Problem Database

Problem Display
PID: 261024 (4N1r1/Q7/2ppPpp1/3nk2p/bbRNP3/3P4/8/2B2R1K w - - 0 1)

Schonholzer, Andreas

Comm., Neue Zurcher Zeitung, 2013

4N1r1/Q7/2ppPpp1/3nk2p/bbRNP3/3P4/8/2B2R1K

#2

10 + 10

6490 yacpdb 2022

SOLUTION

  • SOUND
  • Sets
    • 1...Sc3
      • 2.Bf4#
    • 1...Sf4
      • 2.Bxf4#
    • 1...Sb6
      • 2.Bf4#
    • 1...Sc7
      • 2.Bf4#
    • 1...Se7
      • 2.Bf4#
    • 1...g5
      • 2.Rf5#
  • Tries
    • 1.Qd7?
      • threat
        • 2.Sf3#
      • 1...Bd1
        • 2.Sxc6#
      • 1...Bd2
        • 2.Qxd6#
      • 1...Se3!
    • 1.Qf7?
      • threat
        • 2.Sf3#
      • 1...Bd1
        • 2.Sxc6#
      • 1...Se3
        • 2.Qxf6#
      • 1...Bd2!
  • Keys
    • 1.Qe7!
      • threat
        • 2.Sf3#
      • 1...Sxe7
        • 2.Bf4#
      • 1...Bd1
        • 2.Sxc6#
      • 1...Bd2
        • 2.Qxd6#
      • 1...Se3
        • 2.Qxf6#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 3
    • REMOVED MATES = 5
  • Sets
    • S(c);N_GUARD::B(A)
    • S(c);N_GUARD::B(A),XS(c)
    • P(i);N_GUARD::R1(B)
  • Tries
    • Try
      • Q(I);
      • Threat
        • S(F)
      • Vars
        • B(a);N_GUARD::S(F),XP(f)
        • B(b);N_GUARD::QAB1(I),XP(g)
      • Refutation
        • S(c);
    • Try
      • Q(I);
      • Threat
        • S(F)
      • Vars
        • B(a);N_GUARD::S(F),XP(f)
        • S(c);N_GUARD::QAB1(I),XP(h)
      • Refutation
        • B(b);
  • Actual
    • Q(I);
    • Threat
      • S(F)
    • Vars
      • S(c);N_GUARD,XQ(I)::B(A)
      • B(a);N_GUARD::S(F),XP(f)
      • B(b);N_GUARD::QAB1(I),XP(g)
      • S(c);N_GUARD::QAB1(I),XP(h)
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Implemented with HTML5, MySQL, Perl (with, inter alia, CGI::Simple, HTML::Template & XML::LibXML) & CSS/Javascript (jQuery, Bootstrap & DataTables).