MESON Chess Problem Database

Problem Display
PID: 28814 (b2R4/8/8/2n1p3/1QP1k3/4N1K1/1pP5/5N2 w - - 0 1)

Aliovsadzade, Rauf Gadzhiaga ogli

StrateGems, 2001

b2R4/8/8/2n1p3/1QP1k3/4N1K1/1pP5/5N2

#2

7 + 5

SOLUTION

  • SOUND
  • Sets
    • 1...Bd5
      • 2.cxd5#
    • 1...Sd3
      • 2.cxd3#
    • 1...Sa4
      • 2.c5#
    • 1...Sb7
      • 2.c5#
    • 1...Sd7
      • 2.c5#
  • Tries
    • 1.Qc3?
      • threat
        • 2.Sd2#
      • 1...Sb3
        • 2.Qd3#
      • 1...Sd3
        • 2.Qxd3#
        • 2.cxd3#
      • 1...b1S!
    • 1.Qb6?
      • threat
        • 2.Qg6#
      • 1...Bc6
        • 2.Qxc6#
      • 1...Se6
        • 2.Sd2#
      • 1...Sd7
        • 2.Sd2#
      • 1...Bd5!
  • Keys
    • 1.Qd2!
      • threat
        • 2.Qg2#
      • 1...Bd5
        • 2.Qxd5#
      • 1...Sd7
        • 2.Qd3#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 2
    • ADDED MATES = 0
    • REMOVED MATES = 3
  • Sets
    • B(e);OGATE::QAR(E)+P(F),XB(e)
    • S(c);OGATE::P(B),XS(c)
    • S(c);OGATE::QAR(E)+P(F)
  • Tries
    • Try
      • Q(E);
      • Threat
        • S(A)
      • Vars
        • S(c);N_GUARD::QAB1(E)
      • Refutation
        • P(a);
    • Try
      • Q(E);
      • Threat
        • QAB(E)
      • Vars
        • B(e);N_GUARD::QAB(E),XB(e)
        • S(c);::S(A)
      • Refutation
        • B(e);
  • Actual
    • Q(E);
    • Threat
      • QAB(E)
    • Vars
      • B(e);N_GUARD::QAB1(E),XB(e)
      • S(c);N_GUARD::QAB1(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).