MESON Chess Problem Database

Problem Display
PID: 96590 (4R3/2N5/3Bb1q1/1BnR1N2/r1Qpk1r1/p3p3/Kn4P1/8 w - - 0 1)

Musante, Horacio Luis

Problem (Zagreb), 1952

4R3/2N5/3Bb1q1/1BnR1N2/r1Qpk1r1/p3p3/Kn4P1/8

#2

9 + 10

6490 yacpdb 2009

SOLUTION

  • SOUND
  • Sets
    • 1...Qxf5
      • 2.Rxd4#
    • 1...Ra5
      • 2.Qxd4#
    • 1...Ra6
      • 2.Qxd4#
    • 1...Ra7
      • 2.Qxd4#
    • 1...Ra8
      • 2.Qxd4#
    • 1...Rf4
      • 2.Re5#
    • 1...e2
      • 2.Qxe2#
  • Keys
    • 1.Qf1!
      • threat
        • 2.Qf3#
      • 1...Qxf5
        • 2.Qxf5#
      • 1...Rxg2
        • 2.Qf4#
      • 1...Rc4
        • 2.Re5#
      • 1...Rg3
        • 2.Qf4#
      • 1...Rf4
        • 2.Qxf4#
      • 1...Sc4
        • 2.Rxd4#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 2
    • ADDED MATES = 4
    • REMOVED MATES = 5
  • Sets
    • Q(j);SBLOCK,XS(F)::R1(E),XP(e)
    • R(d);N_GUARD::QAR1(C),XP(e)
    • R(g);SBLOCK::R1(E)
    • P(c);OGATEB::QAR2(C),XP(c)
  • Actual
    • Q(C);N_PINP(e),P_SPINR(E)
    • Threat
      • QAB1(C)
    • Vars
      • Q(j);OGATE,XS(F)::QAB1(C),XQ(j)
      • R(g);N_GUARD,XP(B)::QAR1(C)
      • R(d);N_PINR(E)::R1(E)
      • R(g);N_GUARD::QAR1(C)
      • R(g);N_GUARD::QAR1(C),XR(g)
      • S(a);N_PINR(E)::R1(E),XP(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).