MESON Chess Problem Database

Problem Display
PID: 150653 (2K2n2/pN1p4/1kNp4/4p3/2Q5/3rR3/2b2B2/bq1r4 w - - 0 1)

Bruch, Wieland

Minski, Martin

idee & form, 2013

2K2n2/pN1p4/1kNp4/4p3/2Q5/3rR3/2b2B2/bq1r4

#2

6 + 11

23 Die Schwalbe 2013

SOLUTION

  • SOUND
  • Sets
    • 1...Rd2
      • 2.Rb3#
    • 1...Ra3
      • 2.Rb3#
    • 1...Rb3
      • 2.Rxb3#
    • 1...Rc3
      • 2.Rd3#
    • 1...Rd5
      • 2.Rb3#
  • Tries
    • 1.Qc5+?
      • 1...Ka6
        • 2.Sb8#
        • 2.Qa5#
      • 1...dxc5!
  • Keys
    • 1.Sb8!
      • threat
        • 2.Qa6#
      • 1...a6
        • 2.Qxa6#
      • 1...Qa2
        • 2.Qb4#
      • 1...Qb5
        • 2.Qc7#
      • 1...Ra3
        • 2.Rb3#
      • 1...Rc3
        • 2.Rd3#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 3
    • REMOVED MATES = 3
  • Sets
    • R(e);OGATE::B(A)+R(B),DCHECK
    • R(e);OGATE::B(A)+R(B),DCHECK,XR(e)
    • R(e);S_CUTB(a)::B(A)+R(B)
  • Tries
    • Try
      • Q(C);CHECK
      • Refutation
        • P(h);XQ(C)
  • Actual
    • S(D);
    • Threat
      • QAR1(C)
    • Vars
      • P(i);::QAR1(C),XP(i)
      • Q(b);N_GUARD::QAR2(C)
      • Q(b);SBLOCK::QAB1(C)
      • R(e);OGATE::B(A)+R(B),DCHECK
      • R(e);P_PINQ(C),S_CUTB(a)::B(A)+R(B)
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).