MESON Chess Problem Database

Problem Display
PID: 231562 (8/8/8/8/4pB2/5p2/1N3k2/3K3Q w - - 0 1)

Szentgyorgy, Erno

Magyar Sakkvilag, 1927

8/8/8/8/4pB2/5p2/1N3k2/3K3Q

#2

4 + 3

6490 yacpdb 2021

SOLUTION

  • SOUND
  • Sets
    • 1...e3
      • 2.Sd3#
  • Tries
    • 1.Bd2?
      • 1...e3
        • 2.Be1#
      • 1...Kg3!
    • 1.Bg5?
      • 1...e3
        • 2.Bh4#
      • 1...Kg3!
    • 1.Bd6?
      • 1...e3
        • 2.Sd3#
      • 1...Ke3!
    • 1.Bc7?
      • 1...e3
        • 2.Sd3#
      • 1...Ke3!
    • 1.Bb8?
      • 1...e3
        • 2.Sd3#
      • 1...Ke3!
  • Keys
    • 1.Be5!
      • 1...Ke3
        • 2.Qe1#
      • 1...e3
        • 2.Sd3#

FEATURES

  • Static
    • TYPE = WAITER
    • CHANGED MATES = 0
    • ADDED MATES = 1
    • REMOVED MATES = 0
  • Sets
    • P(c);N_GUARD::S(C)
  • Tries
    • Try
      • B(D);
      • Vars
        • P(c);SBLOCK::B(D)
      • Refutation
        • K(a);S_FLIGHT
    • Try
      • B(D);
      • Vars
        • P(c);SBLOCK::B(D)
      • Refutation
        • K(a);S_FLIGHT
    • Try
      • B(D);
      • Vars
        • P(c);N_GUARD,SBLOCK::S(C)
      • Refutation
        • K(a);S_FLIGHT
    • Try
      • B(D);
      • Vars
        • P(c);N_GUARD,SBLOCK::S(C)
      • Refutation
        • K(a);S_FLIGHT
    • Try
      • B(D);
      • Vars
        • P(c);N_GUARD,SBLOCK::S(C)
      • Refutation
        • K(a);S_FLIGHT
  • Actual
    • B(D);
    • Vars
      • K(a);S_FLIGHT::QAR2(B)
      • P(c);N_GUARD,SBLOCK::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).