MESON Chess Problem Database

Problem Display
PID: 121720 (1K1N4/2P5/1p1P1P2/1rb1k1BN/1p4P1/2p1p3/8/7Q w - - 0 1)

Stocchi, Ottavio

Osterreichische Schachzeitung, 1955

1K1N4/2P5/1p1P1P2/1rb1k1BN/1p4P1/2p1p3/8/7Q

#2

9 + 7

6490 yacpdb 2009

SOLUTION

  • SOUND
  • Sets
    • 1...Bd4
      • 2.Bf4#
  • Tries
    • 1.Qe4+?
      • 1...Kxd6
        • 2.Qe6#
      • 1...Kxe4!
  • Keys
    • 1.Sf4!
      • threat
        • 2.Qd5#
      • 1...Kd4
        • 2.Qd5#
      • 1...Kxd6
        • 2.Qd5#
      • 1...Bxd6
        • 2.Sc6#
      • 1...Bd4
        • 2.Sf7#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 1
    • ADDED MATES = 3
    • REMOVED MATES = 0
  • Sets
    • B(e);SBLOCK::B(C)
  • Tries
    • Try
      • Q(A);CHECK
      • Vars
        • K(f);OGATE,S_FLIGHT,XP(E)::QAR1(A)
      • Refutation
        • K(f);P-FLIGHT,XQ(A)
  • Actual
    • S(D);
    • Threat
      • QAR1(A)
    • Vars
      • K(f);S_FLIGHT::QAR1(A)
      • K(f);S_FLIGHT,XP(E)::QAR1(A)
      • B(e);P_PINP(G),SBLOCK,XP(E)::S(I)
      • B(e);SBLOCK::S(I)
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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).