MESON Chess Problem Database

Problem Display
PID: 129691 (2rN1b1r/P2p2p1/n2kPB2/3p4/7p/4Q1nK/8/8 w - - 0 1)

Palkoska, Emil

Hampstead and Highgate Express, 1904

2rN1b1r/P2p2p1/n2kPB2/3p4/7p/4Q1nK/8/8

#2

6 + 10

6490 yacpdb 2009

SOLUTION

  • SOUND
  • Sets
    • 1...Rc5
      • 2.Qf4#
      • 2.Qe5#
    • 1...Ra8
      • 2.Qb6#
    • 1...Rxd8
      • 2.Qb6#
    • 1...Be7
      • 2.Be5#
    • 1...Sc5
      • 2.Qf4#
      • 2.Qe5#
    • 1...Sc7
      • 2.Qb6#
      • 2.Qa3#
    • 1...d4
      • 2.Qe5#
  • Keys
    • 1.e7!
      • threat
        • 2.e8S#
      • 1...Kc7
        • 2.e8S#
      • 1...Rxd8
        • 2.Qb6#
      • 1...Bxe7
        • 2.Be5#
      • 1...d4
        • 2.Qe5#
      • 1...Sc7
        • 2.Qb6#
        • 2.Qa3#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 1
    • REMOVED MATES = 1
  • Sets
    • R(h);N_GUARD::QAR2(A)
    • R(h);N_GUARD,XS(F)::QAR2(A)
    • B(i);SBLOCK::B(D)
    • P(c);::QAB1(A)
  • Actual
    • P(C);
    • Threat
      • P=S
    • Vars
      • K(e);S_FLIGHT::P=S
      • R(h);N_GUARD,XS(F)::QAR2(A)
      • B(i);SBLOCK,XP(C)::B(D)
      • P(c);::QAB1(A)
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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).