MESON Chess Problem Database

Problem Display
PID: 208222 (1n4Q1/2Bp4/4p3/N2k1p2/1P1p3b/1p2pK2/8/2n5 w - - 0 1)

Dischler, Max

Badische Neueste Nachrichten, 1984

1n4Q1/2Bp4/4p3/N2k1p2/1P1p3b/1p2pK2/8/2n5

#2

5 + 10

15148 Sadier Collection 2020

SOLUTION

  • SOUND
  • Sets
    • 1...Sa6
      • 2.Qa8#
  • Tries
    • 1.Qxb8?
      • threat
        • 2.Qb5#
        • 2.Qb7#
        • 2.Qa8#
      • 1...e5
        • 2.Qg8#
      • 1...d6
        • 2.Qb5#
      • 1...Be7
        • 2.Qb7#
        • 2.Qa8#
      • 1...Sd3
        • 2.Qb7#
        • 2.Qa8#
      • 1...d3!
    • 1.Qf8?
      • threat
        • 2.Qc5#
        • 2.Qd6#
      • 1...e5
        • 2.Qd6#
        • 2.Qf7#
        • 2.Qg8#
      • 1...d6
        • 2.Qxd6#
      • 1...Bg3
        • 2.Qc5#
      • 1...Sd3
        • 2.Qd6#
      • 1...Sa6
        • 2.Qd6#
        • 2.Qa8#
      • 1...Be7!
  • Keys
    • 1.Qg2!
      • threat
        • 2.Kf4#
      • 1...d3
        • 2.Kxe3#
      • 1...e5
        • 2.Qg8#
      • 1...Bg3
        • 2.Kxg3#
      • 1...Bg5
        • 2.Kg3#
      • 1...Se2
        • 2.Kxe2#
      • 1...Sd3
        • 2.Ke2#
      • 1...f4
        • 2.Kxf4#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 7
    • REMOVED MATES = 1
  • Sets
    • S(j);OGATE::QAB(E)
  • Tries
    • Try
      • Q(E);N_PINP(h),XS(j)
      • Threat
        • DUALS(3)
      • Vars
        • P(h);OGATEB::QAB(E)
        • P(i);::QAR2(E)
      • Refutation
        • P(d);
    • Try
      • Q(E);N_PINP(h)
      • Threat
        • DUALS(2)
      • Vars
        • P(i);::QAR1(E),XP(i)
        • B(e);::QAR1(E)
        • S(a);::QAR1(E)
      • Refutation
        • B(e);
  • Actual
    • Q(E);N_PINP(h)
    • Threat
      • QAB(E)+K(A)
    • Vars
      • P(d);::QAB(E)+K(A),XP(c)
      • P(h);OGATEB::QAB(E)
      • B(e);::QAB(E)+K(A),XB(e)
      • B(e);::QAB(E)+K(A)
      • S(a);::QAB(E)+K(A),XS(a)
      • S(a);::QAB(E)+K(A)
      • P(g);::QAB(E)+K(A),XP(g)
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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).