MESON Chess Problem Database

Problem Display
PID: 181068 (K2n4/2p5/3NB3/P1k5/1p1N1P2/1p3p2/2b5/4n1Q1 w - - 0 1)

Genttner, Jaroslav

Pravo lidu, 1904

K2n4/2p5/3NB3/P1k5/1p1N1P2/1p3p2/2b5/4n1Q1

#2

7 + 8

6490 yacpdb 2018

SOLUTION

  • SOUND
  • Sets
    • 1...Bd1
      • 2.Se4#
    • 1...Be4+
      • 2.Sxe4#
    • 1...Sd3
      • 2.Se4#
    • 1...Sc6
      • 2.Sb7#
    • 1...Sb7
      • 2.Sxb7#
    • 1...Sf7
      • 2.Sb7#
  • Tries
    • 1.Sxb3+?
      • 1...Kc6
        • 2.Qc5#
      • 1...Kxd6!
  • Keys
    • 1.Qg7!
      • threat
        • 2.Qe5#
      • 1...Be4+
        • 2.Sxe4#
      • 1...Kxd6
        • 2.Qf8#
      • 1...cxd6
        • 2.Qa7#
      • 1...Sd3
        • 2.Se4#
      • 1...Sc6
        • 2.Sb7#
      • 1...Sf7
        • 2.Sb7#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 2
    • REMOVED MATES = 2
  • Sets
    • B(b);N_GUARD::S(E)
    • B(b);CHECK,N_GUARD::S(E),XB(b)
    • S(a);S_CUTB(b)::S(E)
    • S(h);N_GUARD::S(E)
    • S(h);N_GUARD::S(E),XS(h)
  • Tries
    • Try
      • S(B);CHECK,XP(c)
      • Vars
        • K(f);P-FLIGHT::QAR1(A)
      • Refutation
        • K(f);S_FLIGHT,XS(E)
  • Actual
    • Q(A);
    • Threat
      • QAR2(A)
    • Vars
      • B(b);CHECK,N_GUARD::S(E),XB(b)
      • K(f);OGATEB,S_FLIGHT,XS(E)::QAB(A)
      • P(g);OGATE,SBLOCK,XS(E)::QAB(A)
      • S(a);S_CUTB(b)::S(E)
      • S(h);N_GUARD::S(E)
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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).