MESON Chess Problem Database

Problem Display
PID: 190228 (2Q5/4bK2/1N1p4/4p2p/r3k3/1N4p1/2P2p2/5B2 w - - 0 1)

Papp, Istvan

Pesti Naplo, 1913

2Q5/4bK2/1N1p4/4p2p/r3k3/1N4p1/2P2p2/5B2

#2

6 + 8

6490 yacpdb 2019

SOLUTION

  • SOUND
  • Tries
    • 1.Qg4+?
      • 1...Ke3
        • 2.Sd5#
      • 1...hxg4!
    • 1.Qf5+?
      • 1...Ke3
        • 2.Sd5#
      • 1...Kxf5!
  • Keys
    • 1.Sd5!
      • threat
        • 2.Bg2#
      • 1...Kf3
        • 2.Sd2#
      • 1...Kxd5
        • 2.Qb7#
      • 1...g2
        • 2.Bxg2#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 3
    • REMOVED MATES = 0
  • Sets
  • Tries
    • Try
      • Q(F);CHECK
      • Vars
        • K(d);P-FLIGHT::S(D)
      • Refutation
        • P(f);XQ(F)
    • Try
      • Q(F);CHECK
      • Vars
        • K(d);P-FLIGHT::S(D)
      • Refutation
        • K(d);S_FLIGHT,XQ(F)
  • Actual
    • S(D);
    • Threat
      • B(A)
    • Vars
      • K(d);S_FLIGHT::S(C)
      • K(d);OGATEB,S_FLIGHT,XS(D)::QAB(F)
      • P(b);::B(A),XP(b)
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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).