MESON Chess Problem Database

Problem Display
PID: 235543 (1B6/8/KRP4r/1N1k2N1/p2p1n1r/6Q1/7n/2R2b2 w - - 0 1)

Goldschmeding, Cornelis

Skakbladet, 1947

1B6/8/KRP4r/1N1k2N1/p2p1n1r/6Q1/7n/2R2b2

#2

8 + 8

15148 Sadier Collection 2021

SOLUTION

  • SOUND
  • Sets
    • 1...Bxb5+
      • 2.Rxb5#
    • 1...Sf3
      • 2.Qxf3#
    • 1...Sg4
      • 2.Qf3#
    • 1...Se2
      • 2.Sc7#
      • 2.Qe5#
    • 1...Sg2
      • 2.Qe5#
    • 1...Sd3
      • 2.Sc7#
    • 1...Sh3
      • 2.Qe5#
    • 1...Sh5
      • 2.Qe5#
    • 1...Se6
      • 2.Qe5#
      • 2.Qd6#
    • 1...Sg6
      • 2.Qd6#
  • Tries
    • 1.Qb3+?
      • 1...Bc4
        • 2.Qxc4#
      • 1...axb3!
  • Keys
    • 1.Qf2!
      • threat
        • 2.Qxd4#
      • 1...Bxb5+
        • 2.Rxb5#
      • 1...Sf3
        • 2.Qxf3#
      • 1...Se2
        • 2.Qf5#
      • 1...Sg2
        • 2.Qf5#
      • 1...Sd3
        • 2.Qa2#
      • 1...Sh3
        • 2.Qf5#
      • 1...Sh5
        • 2.Qf5#
      • 1...Se6
        • 2.Qf5#
      • 1...Sg6
        • 2.Qf7#
      • 1...d3
        • 2.Rc5#
        • 2.Qd4#
        • 2.Qc5#
        • 2.Qa2#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 5
    • ADDED MATES = 2
    • REMOVED MATES = 1
  • Sets
    • B(a);CHECK,OGATE,XS(C)::R(F),XB(a)
    • S(b);N_GUARD::QAB(B),XS(b)
    • S(b);N_GUARD::QAB(B)
    • S(e);OGATE::QAR1(B)
    • S(e);N_PINS(C)::S(C)
  • Tries
    • Try
      • Q(B);CHECK
      • Vars
        • B(a);N_GUARD,P_SPINB(a)::QAB1(B),XB(a)
      • Refutation
        • P(c);XQ(B)
  • Actual
    • Q(B);
    • Threat
      • QAR1(B),XP(d)
    • Vars
      • B(a);CHECK,OGATE,XS(C)::R(F),XB(a)
      • S(b);N_GUARD::QAB(B),XS(b)
      • S(e);N_PINS(C),OGATE::QAR2(B)
      • S(e);OGATE::QAR2(B)
      • S(e);N_PINS(C),S_CUTB(a)::QAB(B)
      • S(e);OGATE::QAB(B)
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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).