MESON Chess Problem Database

Problem Display
PID: 206691 (8/8/6p1/Q5Bb/3pp1kP/3N2p1/4P1N1/5B1K w - - 0 1)

Boros, Sandor

Nepszava, 1925

8/8/6p1/Q5Bb/3pp1kP/3N2p1/4P1N1/5B1K

#2

8 + 6

6490 yacpdb 2020

SOLUTION

  • SOUND
  • Tries
    • 1.Sdf4?
      • 1...d3
        • 2.Se3#
      • 1...e3!
    • 1.Se5+?
      • 1...Kh3
        • 2.Sf4#
      • 1...Kf5!
    • 1.Qc7?
      • threat
        • 2.Qd7#
        • 2.Qc8#
      • 1...Kf5
        • 2.Qd7#
        • 2.Qc8#
      • 1...Kh3!
    • 1.Qd8?
      • threat
        • 2.Qd7#
        • 2.Qc8#
      • 1...Kf5
        • 2.Qd7#
        • 2.Qc8#
      • 1...Kh3!
    • 1.Qa4?
      • threat
        • 2.Qd7#
      • 1...Kf5
        • 2.Qd7#
      • 1...Kh3!
    • 1.Qa6?
      • threat
        • 2.Qc8#
        • 2.Qe6#
      • 1...Kf5
        • 2.Qc8#
      • 1...Kh3!
    • 1.Qa7?
      • threat
        • 2.Qd7#
      • 1...Kf5
        • 2.Qd7#
      • 1...Kh3!
    • 1.Qa8?
      • threat
        • 2.Qc8#
      • 1...Kf5
        • 2.Qc8#
      • 1...Kh3!
  • Keys
    • 1.Qc3!
      • threat
        • 2.Qc8#
      • 1...Kh3
        • 2.Sf2#
      • 1...Kf5
        • 2.Qc8#
      • 1...dxc3
        • 2.Se3#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 3
    • REMOVED MATES = 0
  • Sets
  • Tries
    • Try
      • S(E);
      • Vars
        • P(b);N_GUARD::S(D)
      • Refutation
        • P(c);
    • Try
      • S(E);CHECK
      • Vars
        • K(d);S_FLIGHT::B(A)+S(D),DCHECK
      • Refutation
        • K(d);S_FLIGHT
    • Try
      • Q(G);
      • Threat
        • DUALS(2)
      • Refutation
        • K(d);S_FLIGHT
    • Try
      • Q(G);
      • Threat
        • DUALS(2)
      • Refutation
        • K(d);S_FLIGHT
    • Try
      • Q(G);
      • Threat
        • QAB(G)
      • Vars
        • K(d);S_FLIGHT::QAB(G)
      • Refutation
        • K(d);S_FLIGHT
    • Try
      • Q(G);
      • Threat
        • DUALS(2)
      • Vars
        • K(d);S_FLIGHT::QAB(G)
      • Refutation
        • K(d);S_FLIGHT
    • Try
      • Q(G);
      • Threat
        • QAB(G)
      • Vars
        • K(d);S_FLIGHT::QAB(G)
      • Refutation
        • K(d);S_FLIGHT
    • Try
      • Q(G);
      • Threat
        • QAB(G)
      • Vars
        • K(d);S_FLIGHT::QAB(G)
      • Refutation
        • K(d);S_FLIGHT
  • Actual
    • Q(G);
    • Threat
      • QAB(G)
    • Vars
      • K(d);S_FLIGHT::S(E)
      • K(d);S_FLIGHT::QAB(G)
      • P(b);N_GUARD,XQ(G)::S(D)
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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).