MESON Chess Problem Database

Problem Display
PID: 222387 (8/8/4pp2/pQ3p2/3kB3/8/1K2P2B/8 w - - 0 1)

Hulsen, Bernhard

Nuova Rivista degli Scacchi, 1884

8/8/4pp2/pQ3p2/3kB3/8/1K2P2B/8

#2

5 + 5

6490 yacpdb 2020

SOLUTION

  • SOUND
  • Sets
    • 1...Kxe4
      • 2.Qd3#
  • Tries
    • 1.Bd6?
      • threat
        • 2.Qd3#
      • 1...Kxe4
        • 2.Qd3#
      • 1...fxe4
        • 2.Qc5#
      • 1...Ke3!
  • Keys
    • 1.Bf4!
      • 1...Kxe4
        • 2.Qc4#
      • 1...fxe4
        • 2.e3#
      • 1...a4
        • 2.Qb4#
      • 1...e5
        • 2.Qd5#

FEATURES

  • Static
    • TYPE = INCOMPLETE_BLOCK
    • CHANGED MATES = 1
    • ADDED MATES = 3
    • REMOVED MATES = 0
  • Sets
    • K(a);P-FLIGHT,XB(D)::QAB1(E)
  • Tries
    • Try
      • B(C);
      • Threat
        • QAR1(E)
      • Vars
        • K(a);P-FLIGHT,XB(D)::QAB1(E)
        • P(c);SBLOCK,XB(D)::QAB1(E)
      • Refutation
        • K(a);S_FLIGHT
  • Actual
    • B(C);
    • Vars
      • K(a);P-FLIGHT,XB(D)::QAR2(E)
      • P(c);SBLOCK,XB(D)::P(B)
      • P(b);N_GUARD::QAR2(E)
      • P(d);N_GUARD::QAR1(E)
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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).