MESON Chess Problem Database

Problem Display
PID: 260153 (2K5/8/2k5/3p4/1Q6/1n3BN1/8/8 w - - 0 1)

Zimmer, Eligiusz

Schweizerische Schachzeitung, 2005

2K5/8/2k5/3p4/1Q6/1n3BN1/8/8

#2

4 + 3

SOLUTION

  • SOUND
  • Tries
    • 1.Se2?
      • 1...Sa1
        • 2.Sd4#
      • 1...Sc1
        • 2.Sd4#
      • 1...Sd2
        • 2.Sd4#
      • 1...Sd4
        • 2.Sxd4#
      • 1...Sa5
        • 2.Sd4#
      • 1...Sc5!
    • 1.Bg4?
      • threat
        • 2.Bd7#
      • 1...d4
        • 2.Bf3#
      • 1...Sc5!
    • 1.Bh5?
      • threat
        • 2.Be8#
      • 1...d4
        • 2.Bf3#
      • 1...Sc5!
  • Keys
    • 1.Se4!
      • threat
        • 2.Qb7#
      • 1...dxe4
        • 2.Bxe4#
      • 1...Sa5
        • 2.Qc5#
      • 1...Sc5
        • 2.Qxc5#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 3
    • REMOVED MATES = 0
  • Sets
  • Tries
    • Try
      • S(B);
      • Vars
        • S(a);N_GUARD::S(B)
        • S(a);N_GUARD::S(B),XS(a)
      • Refutation
        • S(a);
    • Try
      • B(A);N_PINP(b)
      • Threat
        • B(A)
      • Vars
        • P(b);OGATEB::B(A)
      • Refutation
        • S(a);
    • Try
      • B(A);N_PINP(b)
      • Threat
        • B(A)
      • Vars
        • P(b);OGATEB::B(A)
      • Refutation
        • S(a);
  • Actual
    • S(B);N_PINP(b)
    • Threat
      • QAB1(C)
    • Vars
      • P(b);OGATE,P_SPINP(b),XS(B)::B(A),XP(b)
      • S(a);N_GUARD::QAR1(C)
      • S(a);N_GUARD::QAR1(C),XS(a)
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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).