MESON Chess Problem Database

Problem Display
PID: 193717 (BQ6/3p4/2pP4/2p1pp2/5k1K/2B5/3P2P1/8 w - - 0 1)

Fischer, Lajos

Pesti Naplo, 1915

BQ6/3p4/2pP4/2p1pp2/5k1K/2B5/3P2P1/8

#2

7 + 6

6490 yacpdb 2019

SOLUTION

  • SOUND
  • Tries
    • 1.Qb1?
      • 1...e4
        • 2.Qf1#
      • 1...c4!
    • 1.Qe8?
      • threat
        • 2.Qxe5#
      • 1...e4
        • 2.Be5#
        • 2.Qe5#
      • 1...Ke4!
    • 1.Qg8?
      • 1...Ke4
        • 2.Qc4#
      • 1...e4
        • 2.Qg3#
        • 2.Qg5#
      • 1...c4!
    • 1.Qh8?
      • threat
        • 2.Qxe5#
      • 1...e4
        • 2.Be5#
        • 2.Qe5#
        • 2.Qh6#
      • 1...Ke4!
  • Keys
    • 1.Qb5!
      • 1...Ke4
        • 2.Qc4#
      • 1...cxb5
        • 2.g3#
      • 1...c4
        • 2.Qxe5#
      • 1...e4
        • 2.Qf1#

FEATURES

  • Static
    • TYPE = INCOMPLETE_BLOCK
    • CHANGED MATES = 0
    • ADDED MATES = 4
    • REMOVED MATES = 0
  • Sets
  • Tries
    • Try
      • Q(G);
      • Vars
        • P(c);SBLOCK::QAR(G)
      • Refutation
        • P(b);
    • Try
      • Q(G);
      • Threat
        • QAB1(G),XP(c)
      • Refutation
        • K(a);P-FLIGHT,P_SPINP(c)
    • Try
      • Q(G);
      • Vars
        • K(a);P-FLIGHT,P_SPINP(e)::QAR2(G)
      • Refutation
        • P(b);
    • Try
      • Q(G);
      • Threat
        • QAB1(G),XP(c)
      • Refutation
        • K(a);P-FLIGHT,P_SPINP(e)
  • Actual
    • Q(G);
    • Vars
      • K(a);P-FLIGHT,P_SPINP(e)::QAR2(G)
      • P(e);XQ(G)::P(B)
      • P(b);OGATE::QAB1(G),XP(c)
      • P(c);SBLOCK::QAR(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).