MESON Chess Problem Database

Problem Display
PID: 260924 (2b3N1/r7/3B4/2Q1Nk1p/1RB4P/5P1K/8/2b1n3 w - - 0 1)

Angeli, Herbert

Neue Zurcher Zeitung, 1957

2b3N1/r7/3B4/2Q1Nk1p/1RB4P/5P1K/8/2b1n3

#2

9 + 6

6490 yacpdb 2022

SOLUTION

  • SOUND
  • Sets
    • 1...Kf4+
      • 2.Be6#
  • Keys
    • 1.Qd5!
      • threat
        • 2.Qe4#
      • 1...Kf4+
        • 2.Sg4#
      • 1...Sxf3
        • 2.Bd3#
      • 1...Bb7
        • 2.Qf7#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 1
    • ADDED MATES = 2
    • REMOVED MATES = 0
  • Sets
    • K(c);CHECK,N_GUARD,P-FLIGHT,S_CUTB(f)::R(C)+B(D)
  • Actual
    • Q(F);
    • Threat
      • QAB1(F)
    • Vars
      • K(c);CHECK,N_GUARD,P-FLIGHT::B(H)+S(G)
      • S(b);N_GUARD,XP(A)::B(D)
      • B(f);S_CUTR(e)::QAR2(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).