MESON Chess Problem Database

Problem Display
PID: 189910 (8/1pp5/1pk1P3/2qN4/R7/2Q1P3/2P5/4K2B w - - 0 1)

Ferber, Eugene

Magyar Sakkvilag, 1912

8/1pp5/1pk1P3/2qN4/R7/2Q1P3/2P5/4K2B

#2

8 + 5

6490 yacpdb 2019

SOLUTION

  • SOUND
  • Keys
    • 1.Qe5!
      • 1...Qxe3+
        • 2.Sxe3#
      • 1...Qb4+
        • 2.Sxb4#
      • 1...Qc3+
        • 2.Sxc3#
      • 1...Qa5+
        • 2.Sb4#
      • 1...Kb5
        • 2.Sc3#
      • 1...Qxc2
        • 2.Sb4#
        • 2.Se7#
      • 1...Qxd5
        • 2.Qxd5#
      • 1...Qa3
        • 2.Sc3#
        • 2.Sb4#
        • 2.Sf4#
        • 2.Sf6#
        • 2.Sxc7#
        • 2.Se7#
      • 1...Qd4
        • 2.Sb4#
        • 2.Se7#
      • 1...Qd6
        • 2.Sb4#
        • 2.Se7#
      • 1...Qe7
        • 2.Sc3#
        • 2.Sb4#
        • 2.Sf4#
        • 2.Sf6#
        • 2.Sxc7#
        • 2.Sxe7#
      • 1...Qf8
        • 2.Sb4#
        • 2.Sf4#
        • 2.Sf6#
        • 2.Se7#
      • 1...Qc4
        • 2.Sb4#
        • 2.Se7#
      • 1...Qb5
        • 2.Sb4#
        • 2.Se7#
        • 2.Qxc7#
      • 1...b5
        • 2.Qxc7#

FEATURES

  • Static
    • TYPE = INCOMPLETE_BLOCK
    • CHANGED MATES = 0
    • ADDED MATES = 7
    • REMOVED MATES = 0
  • Sets
  • Actual
    • Q(D);N_PINQ(a)
    • Vars
      • Q(a);CHECK,XP(E)::B(B)+S(G),XQ(a)
      • Q(a);CHECK::B(B)+S(G),DCHECK,XQ(a)
      • Q(a);CHECK,N_GUARD::B(B)+S(G),XQ(a)
      • Q(a);CHECK::B(B)+S(G),DCHECK
      • K(c);S_FLIGHT::S(G)
      • Q(a);OGATE,P_SPINQ(a),XS(G)::QAB1(D),XQ(a)
      • P(b);SBLOCK::QAR1(D),XP(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).