MESON Chess Problem Database

Problem Display
PID: 227723 (b3N3/4p1B1/3p3p/4pPkp/8/b3PQ1P/2B3K1/q3N3 w - - 0 1)

Toth, Gyula

Uj Nemezdek, 1926

b3N3/4p1B1/3p3p/4pPkp/8/b3PQ1P/2B3K1/q3N3

#2

9 + 9

6490 yacpdb 2020

SOLUTION

  • SOUND
  • Sets
    • 1...Bxf3+
      • 2.Sxf3#
    • 1...e4
      • 2.Qf4#
    • 1...d5
      • 2.Qg3#
    • 1...e6
      • 2.Bf6#
  • Keys
    • 1.Bf8!
      • threat
        • 2.Bxe7#
      • 1...Bxf3+
        • 2.Sxf3#
      • 1...Kh4
        • 2.Bxe7#
      • 1...e4
        • 2.Qf4#
      • 1...d5
        • 2.Qg3#
      • 1...e6
        • 2.Be7#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 1
    • ADDED MATES = 1
    • REMOVED MATES = 0
  • Sets
    • B(i);CHECK,XQ(E)::S(A),XB(i)
    • P(c);N_PINQ(E)::QAB1(E)
    • P(f);N_PINQ(E)::QAR2(E)
    • P(h);N_GUARD::B(H)
  • Actual
    • B(H);
    • Threat
      • B(H),XP(h)
    • Vars
      • B(i);CHECK,XQ(E)::S(A),XB(i)
      • K(d);S_FLIGHT::B(H),XP(h)
      • P(c);N_PINQ(E)::QAB1(E)
      • P(f);N_PINQ(E)::QAR2(E)
      • P(h);::B(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).