MESON Chess Problem Database

Problem Display
PID: 243410 (5kNK/2p2pN1/6P1/3b4/5Q2/b3p2p/8/6q1 w - - 0 1)

Bata, Lorinc

Tijdschrift vd KNSB, 1952

5kNK/2p2pN1/6P1/3b4/5Q2/b3p2p/8/6q1

#2

5 + 8

15148 Sadier Collection 2021

SOLUTION

  • SOUND
  • Sets
    • 1...Bh1
      • 2.Qxf7#
    • 1...Bg2
      • 2.Qxf7#
    • 1...Bf3
      • 2.Qxf7#
    • 1...Be4
      • 2.Qxf7#
    • 1...Bc6
      • 2.Qxf7#
    • 1...Bb7
      • 2.Qxf7#
    • 1...Ba8
      • 2.Qxf7#
    • 1...c5
      • 2.Qd6#
      • 2.Qb8#
    • 1...c6
      • 2.Qb8#
  • Tries
    • 1.Se6+?
      • 1...Ke8
        • 2.Qxf7#
      • 1...Bxe6!
    • 1.Qb4+?
      • 1...c5
        • 2.Qb8#
      • 1...Bxb4!
    • 1.Qf6?
      • threat
        • 2.Qd8#
      • 1...Bc6
        • 2.Qxf7#
      • 1...Be7
        • 2.Qxe7#
      • 1...Qg5!
  • Keys
    • 1.Qa4!
      • threat
        • 2.Qe8#
      • 1...Bc6
        • 2.Qxa3#
      • 1...c6
        • 2.Qa8#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 2
    • ADDED MATES = 0
    • REMOVED MATES = 6
  • Sets
    • B(e);N_GUARD::QAR1(A),XP(g)
    • P(f);OGATE::QAR(A)
  • Tries
    • Try
      • S(C);CHECK
      • Vars
        • K(h);N_SPINP(g),P-FLIGHT::QAB1(A),XP(g)
      • Refutation
        • B(e);XS(C)
    • Try
      • Q(A);CHECK,N_PINP(g)
      • Vars
        • P(f);P_SPINP(f)::QAR(A)
      • Refutation
        • B(b);XQ(A)
    • Try
      • Q(A);
      • Threat
        • QAR2(A)
      • Vars
        • B(e);N_GUARD::QAR1(A),XP(g)
        • B(b);N_GUARD::QAB1(A),XB(b)
      • Refutation
        • Q(a);
  • Actual
    • Q(A);N_PINP(g)
    • Threat
      • QAR1(A)
    • Vars
      • B(e);S_CUTP(f)::QAB(A),XB(b)
      • P(f);S_CUTB(e)::QAR(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).