MESON Chess Problem Database

Problem Display
PID: 72968 (8/3Q4/nKn5/3b4/2kr4/1R2P3/1P1p4/3B4 w - - 0 1)

Horehner, A

Tijdschrift vd KNSB, 1936

8/3Q4/nKn5/3b4/2kr4/1R2P3/1P1p4/3B4

#2

6 + 6

SOLUTION

  • SOUND
  • Sets
    • 1...Sab4
      • 2.Rc3#
    • 1...Scb4
      • 2.Rc3#
      • 2.Qb5#
    • 1...Sa5
      • 2.Qb5#
    • 1...Se5
      • 2.Qb5#
    • 1...Se7
      • 2.Qb5#
    • 1...Sb8
      • 2.Qb5#
    • 1...Sd8
      • 2.Qb5#
  • Tries
    • 1.Qxc6+?
      • 1...Sc5
        • 2.Qb5#
        • 2.Qxc5#
      • 1...Bxc6!
    • 1.Qd6?
      • threat
        • 2.Rc3#
      • 1...Sc5
        • 2.Qxc5#
      • 1...Rd3!
  • Keys
    • 1.Qf5!
      • threat
        • 2.Qc2#
      • 1...Rd3
        • 2.Qxd3#
      • 1...Re4
        • 2.Qf1#
      • 1...Bh1
        • 2.Qb5#
      • 1...Bg2
        • 2.Qb5#
      • 1...Bf3
        • 2.Qb5#
      • 1...Be4
        • 2.Qb5#
      • 1...Be6
        • 2.Qb5#
      • 1...Bf7
        • 2.Qb5#
      • 1...Bg8
        • 2.Qb5#
      • 1...Sab4
        • 2.Rc3#
      • 1...Scb4
        • 2.Rc3#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 10
    • REMOVED MATES = 5
  • Sets
    • S(e);SBLOCK::R1(C)
    • S(f);OGATE::QAB1(F)
  • Tries
    • Try
      • Q(F);CHECK,XS(f)
      • Refutation
        • B(d);XQ(F)
    • Try
      • Q(F);
      • Threat
        • R1(C)
      • Vars
        • S(e);N_GUARD::QAR1(F),XS(e)
      • Refutation
        • R(c);
  • Actual
    • Q(F);
    • Threat
      • QAR2(F)
    • Vars
      • R(c);N_GUARD::QAB1(F),XR(c)
      • R(c);N_GUARD::QAB(F)
      • B(d);OGATE::QAB1(F)
      • S(e);SBLOCK::R1(C)
      • S(f);SBLOCK::R1(C)
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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).