MESON Chess Problem Database

Problem Display
PID: 177510 (3K4/N1R5/1n6/R4P2/1p1kpp1P/6PQ/2B2P2/8 w - - 0 1)

Sardella, Giuseppe

Best Problems, 2018

3K4/N1R5/1n6/R4P2/1p1kpp1P/6PQ/2B2P2/8

#2

10 + 5

SOLUTION

  • SOUND
  • Tries
    • 1.Qf1?
      • threat
        • 2.Qa1#
        • 2.Qd1#
      • 1...Sc4
        • 2.Rxc4#
        • 2.Qxc4#
      • 1...Sa4
        • 2.Rc4#
        • 2.Qc4#
        • 2.Qd1#
      • 1...b3
        • 2.Qd1#
      • 1...Sd5!
    • 1.Qh1?
      • threat
        • 2.Qxe4#
        • 2.Qa1#
        • 2.Qd1#
      • 1...Sd5
        • 2.Qxe4#
      • 1...Sa4
        • 2.Qxe4#
        • 2.Qd1#
      • 1...b3
        • 2.Qxe4#
        • 2.Qd1#
      • 1...e3
        • 2.Qe4#
        • 2.Qa1#
        • 2.Qd1#
      • 1...f3
        • 2.Qa1#
        • 2.Qd1#
      • 1...Sc4!
  • Keys
    • 1.gxf4!
      • threat
        • 2.Qe3#
      • 1...Sc4
        • 2.Sc6#
      • 1...Sd5
        • 2.Sb5#
      • 1...e3
        • 2.Qxe3#
        • 2.fxe3#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 2
    • REMOVED MATES = 0
  • Sets
  • Tries
    • Try
      • Q(D);
      • Threat
        • DUALS(2)
      • Vars
        • P(a);::QAR(D)
      • Refutation
        • S(e);
    • Try
      • Q(D);
      • Threat
        • DUALS(3)
      • Vars
        • S(e);::QAR1(D),XP(c)
      • Refutation
        • S(e);
  • Actual
    • P(C);XP(d)
    • Threat
      • QAB1(D)
    • Vars
      • S(e);SBLOCK::S(H)
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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).