MESON Chess Problem Database

Problem Display
PID: 203523 (1B6/4NR2/K1pr4/4k3/4q3/b3Rn2/8/3Q4 w - - 0 1)

Kintzig, Robert

Uj Nemezdek, 1924

1B6/4NR2/K1pr4/4k3/4q3/b3Rn2/8/3Q4

#2

6 + 6

6490 yacpdb 2020

SOLUTION

  • SOUND
  • Sets
    • 1...Bc1
      • 2.Qxd6#
    • 1...Bb2
      • 2.Qxd6#
    • 1...c5+
      • 2.Qxd6#
  • Keys
    • 1.Qb3!
      • threat
        • 2.Sxc6#
      • 1...c5+
        • 2.Sc6#
      • 1...Kd4
        • 2.Qc3#
      • 1...Qxe3
        • 2.Qxe3#
      • 1...Sd4
        • 2.Sg6#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 1
    • ADDED MATES = 3
    • REMOVED MATES = 2
  • Sets
    • B(a);N_GUARD::QAB1(A),XR(f)
    • P(e);CHECK,S_CUTB(a)::QAB1(A),XR(f)
  • Actual
    • Q(A);
    • Threat
      • S(D),XP(e)
    • Vars
      • P(e);CHECK::S(D)
      • K(d);N_SPINQ(c),N_SPINR(f),S_FLIGHT::QAB1(A)
      • Q(c);N_SPINQ(c),OGATE,XR(B)::QAR2(A),XQ(c)
      • S(b);SBLOCK::S(D)
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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).