MESON Chess Problem Database

Problem Display
PID: 195102 (3N1q1b/4p2n/1P1R2nB/K1Q3r1/1P3kr1/8/b1B1P2P/8 w - - 0 1)

Pape, Edouard

Brisbane Courier, 1918

3N1q1b/4p2n/1P1R2nB/K1Q3r1/1P3kr1/8/b1B1P2P/8

#2

10 + 9

6490 yacpdb 2019

SOLUTION

  • SOUND
  • Sets
    • 1...Bb1
      • 2.Se6#
    • 1...Be6
      • 2.Sxe6#
    • 1...Be5
      • 2.Qf2#
    • 1...Se5
      • 2.Qd4#
    • 1...e5
      • 2.Qf2#
  • Keys
    • 1.Re6!
      • threat
        • 2.Re4#
      • 1...Bxe6
        • 2.Sxe6#
      • 1...Qf5
        • 2.Qxf5#
      • 1...Bd5
        • 2.Qe3#
      • 1...Be5
        • 2.Qf2#
      • 1...Se5
        • 2.Qd4#
      • 1...Sf6
        • 2.Qf5#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 3
    • REMOVED MATES = 2
  • Sets
    • B(a);N_GUARD::S(J)
    • B(a);N_GUARD::S(J),XB(a)
    • B(i);N_PINQ(F),SBLOCK::QAR2(F)
    • S(e);N_PINQ(F)::QAR2(F)
    • P(f);N_PINQ(F),SBLOCK::QAR2(F)
  • Actual
    • R(H);
    • Threat
      • R1(H)
    • Vars
      • B(a);XR(H)::S(J),XB(a)
      • Q(h);N_GUARD::QAR1(F),XQ(h)
      • B(a);N_PINQ(F)::QAB1(F)
      • B(i);N_PINQ(F)::QAR2(F)
      • S(e);N_PINQ(F)::QAR2(F)
      • S(g);S_CUTQ(h)::QAR1(F)
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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).