MESON Chess Problem Database

Problem Display
PID: 195198 (8/2Q1P3/1p6/1p1P4/1P1kp1b1/PB2p3/2P5/4K3 w - - 0 1)

Erlin, Konrad (AKA Erlinger, Konrad)

Magyar Sakkvilag, 1918

8/2Q1P3/1p6/1p1P4/1P1kp1b1/PB2p3/2P5/4K3

#2

8 + 6

6490 yacpdb 2019

SOLUTION

  • SOUND
  • Tries
    • 1.Qxb6+?
      • 1...Kc3
        • 2.Qf6#
      • 1...Ke5!
    • 1.e8Q?
      • threat
        • 2.Qce5#
        • 2.Qg7#
        • 2.Qee5#
        • 2.Qh8#
      • 1...Be6
        • 2.Qg7#
        • 2.Qh8#
      • 1...Bd7
        • 2.Qce5#
        • 2.Qee5#
        • 2.Qh8#
      • 1...e2!
    • 1.e8R?
      • threat
        • 2.Qe5#
        • 2.Qg7#
      • 1...Bd7
        • 2.Qe5#
      • 1...Be6
        • 2.Qg7#
      • 1...e2!
  • Keys
    • 1.Qg3!
      • 1...Kc3
        • 2.Qe5#
      • 1...Bd1
        • 2.Qg7#
      • 1...Be2
        • 2.Qg7#
      • 1...Bf3
        • 2.Qg7#
      • 1...Bh3
        • 2.Qg7#
      • 1...Bf5
        • 2.Qg7#
      • 1...Bh5
        • 2.Qg7#
      • 1...Be6
        • 2.Qg7#
      • 1...Bd7
        • 2.Qg7#
      • 1...Bc8
        • 2.Qg7#
      • 1...e2
        • 2.c3#

FEATURES

  • Static
    • TYPE = INCOMPLETE_BLOCK
    • CHANGED MATES = 0
    • ADDED MATES = 11
    • REMOVED MATES = 0
  • Sets
  • Tries
    • Try
      • Q(G);CHECK,XP(f)
      • Vars
        • K(b);S_FLIGHT::QAB(G)
      • Refutation
        • K(b);S_FLIGHT
    • Try
      • P(H);
      • Threat
        • DUALS(4)
      • Refutation
        • P(a);
    • Try
      • P(H);
      • Threat
        • DUALS(2)
      • Vars
        • B(d);::QAB1(G)
        • B(d);::QAB(G)
      • Refutation
        • P(a);
  • Actual
    • Q(G);
    • Vars
      • K(b);P_SPINP(a),S_FLIGHT::QAB(G)
      • B(d);OGATE::QAB(G)
      • P(a);::P(B)
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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).