MESON Chess Problem Database

Problem Display
PID: 225471 (8/4pN2/4PN2/2R4P/r3nk2/4p3/4P2K/1Q6 w - - 0 1)

Formanek, Bedrich

Smatana, Vojtech

Praca, 1953

8/4pN2/4PN2/2R4P/r3nk2/4p3/4P2K/1Q6

#2

8 + 5

6490 yacpdb 2020

SOLUTION

  • SOUND
  • Sets
    • 1...Ra1
      • 2.Qxe4#
    • 1...Ra2
      • 2.Qxe4#
    • 1...Ra3
      • 2.Qxe4#
    • 1...Ra5
      • 2.Qxe4#
    • 1...Ra6
      • 2.Qxe4#
    • 1...Ra7
      • 2.Qxe4#
    • 1...Ra8
      • 2.Qxe4#
    • 1...Sd2
      • 2.Rf5#
      • 2.Qf5#
      • 2.Qb8#
    • 1...Sf2
      • 2.Rf5#
      • 2.Qf5#
      • 2.Qb8#
    • 1...Sc3
      • 2.Rf5#
      • 2.Qf5#
      • 2.Qf1#
      • 2.Qb8#
    • 1...Sg3
      • 2.Qb8#
    • 1...Sxc5
      • 2.Qf1#
    • 1...Sg5
      • 2.Rf5#
      • 2.Qf5#
      • 2.Qb8#
    • 1...Sd6
      • 2.Qf1#
    • 1...Sxf6
      • 2.Qf5#
  • Keys
    • 1.Sh6!
      • threat
        • 2.Rf5#
      • 1...Sxc5
        • 2.Qf5#
      • 1...Ra5
        • 2.Qxe4#
      • 1...Sg3
        • 2.Qb8#
      • 1...Sd6
        • 2.Qf1#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 1
    • ADDED MATES = 0
    • REMOVED MATES = 7
  • Sets
    • R(b);N_GUARD::QAR1(A),XS(c)
    • R(b);N_GUARD,P_PINP(B)::QAR1(A),XS(c)
    • S(c);N_GUARD::QAB(A)
    • S(c);N_GUARD,XR(D)::QAR(A)
    • S(c);N_GUARD::QAR(A)
    • S(c);OGATE,XS(G)::QAR1(A)
  • Actual
    • S(H);
    • Threat
      • R1(D)
    • Vars
      • S(c);OGATE,XR(D)::QAR1(A)
      • R(b);N_GUARD::QAR1(A),XS(c)
      • S(c);N_GUARD::QAB(A)
      • S(c);N_GUARD::QAR(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).