MESON Chess Problem Database

Problem Display
PID: 184744 (8/1B6/8/p1P2P2/p2k4/K7/5N2/2Q3B1 w - - 0 1)

Hulsen, Bernhard

Reclam-Sammlung V, 1908

8/1B6/8/p1P2P2/p2k4/K7/5N2/2Q3B1

#2

7 + 3

6490 yacpdb 2018

SOLUTION

  • SOUND
  • Tries
    • 1.Sh3+?
      • 1...Kd3
        • 2.Sf4#
      • 1...Ke5!
    • 1.Qc2?
      • threat
        • 2.Sd3#
        • 2.Sg4#
      • 1...Ke3
        • 2.Sd3#
        • 2.Sh3#
      • 1...Ke5!
  • Keys
    • 1.Qf1!
      • 1...Kc3
        • 2.Qd3#
      • 1...Ke3
        • 2.Se4#
      • 1...Kxc5
        • 2.Se4#
      • 1...Ke5
        • 2.Sg4#

FEATURES

  • Static
    • TYPE = INCOMPLETE_BLOCK
    • CHANGED MATES = 0
    • ADDED MATES = 4
    • REMOVED MATES = 0
  • Sets
  • Tries
    • Try
      • S(C);CHECK
      • Vars
        • K(b);P-FLIGHT::S(C)
      • Refutation
        • K(b);S_FLIGHT
    • Try
      • Q(A);
      • Threat
        • DUALS(2)
      • Refutation
        • K(b);S_FLIGHT
  • Actual
    • Q(A);
    • Vars
      • K(b);S_FLIGHT::QAR1(A)
      • K(b);S_FLIGHT::B(B)+S(C)
      • K(b);S_FLIGHT,XP(E)::B(B)+S(C),DCHECK
      • K(b);S_FLIGHT::S(C)
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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).