MESON Chess Problem Database

Problem Display
PID: 195160 (8/2b5/4p2R/8/2K1Q1Nr/4p2k/4n1n1/5N2 w - - 0 1)

Funk, Jacob E

Densmore MT (Pittsburgh Gazette-Times), 1918

8/2b5/4p2R/8/2K1Q1Nr/4p2k/4n1n1/5N2

#2

5 + 7

6490 yacpdb 2019

SOLUTION

  • SOUND
  • Sets
    • 1...Sef4
      • 2.Qf3#
  • Tries
    • 1.Sgxe3?
      • threat
        • 2.Qg4#
      • 1...Bf4
        • 2.Qxg2#
        • 2.Qxe6#
      • 1...Sef4
        • 2.Qf3#
      • 1...Sgf4
        • 2.Qh1#
      • 1...Sxe3+!
    • 1.Se5?
      • threat
        • 2.Qg4#
      • 1...Sef4
        • 2.Qf3#
      • 1...Sgf4
        • 2.Qh1#
      • 1...Bxe5!
  • Keys
    • 1.Sf6!
      • threat
        • 2.Qg4#
      • 1...Bf4
        • 2.Qxe6#
      • 1...Sef4
        • 2.Qf3#
      • 1...Sgf4
        • 2.Qh1#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 2
    • REMOVED MATES = 0
  • Sets
    • S(a);N_GUARD,S_CUTB(g)::QAR2(C)
  • Tries
    • Try
      • S(D);P_SPINQ(C),XP(c)
      • Threat
        • QAB1(C)
      • Vars
        • S(a);N_PINQ(C)::QAR2(C)
        • S(b);N_PINQ(C)::QAR2(C)
      • Refutation
        • S(b);CHECK,XS(D)
    • Try
      • S(D);P_SPINQ(C)
      • Threat
        • QAB1(C)
      • Vars
        • S(a);N_PINQ(C)::QAR2(C)
        • S(b);N_PINQ(C)::QAR2(C)
      • Refutation
        • B(g);XS(D)
  • Actual
    • S(D);P_SPINQ(C)
    • Threat
      • QAB1(C)
    • Vars
      • B(g);N_PINQ(C)::QAB(C),XP(f)
      • S(a);N_PINQ(C)::QAR2(C)
      • S(b);N_PINQ(C)::QAR2(C)
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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).