MESON Chess Problem Database

Problem Display
PID: 202581 (8/1N1p1K2/1p1P4/1q1k1p2/2p2Pp1/2p1P1P1/N7/1Q1B4 w - - 0 1)

Kovacs, Florian Janos

Nepszava, 1923

8/1N1p1K2/1p1P4/1q1k1p2/2p2Pp1/2p1P1P1/N7/1Q1B4

#2

9 + 8

6490 yacpdb 2020

SOLUTION

  • SOUND
  • Sets
    • 1...Qa6
      • 2.Sb4#
    • 1...Qc6
      • 2.Sxc3#
      • 2.Sb4#
      • 2.Qxf5#
    • 1...Qb4
      • 2.Sxb4#
  • Keys
    • 1.Ba4!
      • threat
        • 2.Qh1#
      • 1...Kc6
        • 2.Qh1#
      • 1...Qxb1
        • 2.Sxc3#
      • 1...Qb2
        • 2.Qxf5#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 3
    • REMOVED MATES = 2
  • Sets
    • Q(d);N_GUARD::S(C)
    • Q(d);N_GUARD::S(C),XQ(d)
  • Actual
    • B(B);
    • Threat
      • QAB(A)
    • Vars
      • K(e);P_SPINQ(d),S_FLIGHT::QAB(A)
      • Q(d);XQ(A)::S(C),XP(a)
      • Q(d);::QAR2(A),XP(f)
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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).