MESON Chess Problem Database

Problem Display
PID: 227825 (5B2/2N3pn/4Q1p1/4pN1b/5kB1/5P2/8/6K1 w - - 0 1)

Schoblocher, Miklos

Ujsag, 1926

5B2/2N3pn/4Q1p1/4pN1b/5kB1/5P2/8/6K1

#2

7 + 6

6490 yacpdb 2020

SOLUTION

  • SOUND
  • Sets
    • 1...Sg5
      • 2.Sd5#
    • 1...g5
      • 2.Sd5#
  • Tries
    • 1.Qxe5+?
      • 1...Kg5
        • 2.Se6#
      • 1...Kxe5!
  • Keys
    • 1.Qxg6!
      • threat
        • 2.Sd5#
        • 2.Se6#
      • 1...Bxg4
        • 2.Qxg4#
      • 1...Bxg6
        • 2.Se6#
      • 1...Sxf8
        • 2.Sd5#
      • 1...e4
        • 2.Bd6#
      • 1...Sg5
        • 2.Sd5#
      • 1...Sf6
        • 2.Se6#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 5
    • REMOVED MATES = 1
  • Sets
    • S(f);SBLOCK::S(F)
    • P(d);SBLOCK::S(F)
  • Tries
    • Try
      • Q(E);CHECK,XP(b)
      • Vars
        • K(a);S_FLIGHT::S(F)
      • Refutation
        • K(a);S_FLIGHT,XQ(E)
  • Actual
    • Q(E);XP(d)
    • Threat
      • DUALS(2)
    • Vars
      • B(c);OGATE,XB(C)::QAR1(E),XB(c)
      • B(c);XQ(E)::S(F)
      • S(f);XB(G)::S(F)
      • P(b);OGATEB::B(G)
      • S(f);::S(F)
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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).