MESON Chess Problem Database

Problem Display
PID: 101180 (8/6B1/2R1p3/N2k1b1R/3p4/8/2Q2n1b/1K6 w - - 0 1)

Pape, Edouard

Good Companions, 1921

8/6B1/2R1p3/N2k1b1R/3p4/8/2Q2n1b/1K6

#2

6 + 6

6490 yacpdb 2009

SOLUTION

  • SOUND
  • Sets
    • 1...Sd3
      • 2.Qg2#
    • 1...Se4
      • 2.Qb3#
      • 2.Qa2#
      • 2.Qc4#
    • 1...d3
      • 2.Qc4#
  • Keys
    • 1.Sb7!
      • threat
        • 2.Rc5#
      • 1...Sd3
        • 2.Qg2#
      • 1...d3
        • 2.Qc4#
      • 1...Bd6
        • 2.Rxd6#
      • 1...Se4
        • 2.Qc4#
      • 1...e5
        • 2.Rd6#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 3
    • REMOVED MATES = 0
  • Sets
    • S(a);N_PINQ(B)::QAB(B)
    • P(c);N_PINQ(B)::QAB1(B)
  • Actual
    • S(C);
    • Threat
      • R1(E)
    • Vars
      • S(a);N_PINQ(B)::QAB(B)
      • P(c);N_PINQ(B)::QAB1(B)
      • B(b);N_GUARD::R1(E),XB(b)
      • S(a);N_PINQ(B),SBLOCK::QAB1(B)
      • P(f);N_SPINB(e),S_CUTB(b)::R1(E)
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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).