MESON Chess Problem Database

Problem Display
PID: 102604 (1BB2N1K/p1nN2Q1/1p5p/qRb4p/1pR1bknr/4r1p1/6P1/8 w - - 0 1)

Stocchi, Ottavio

Echec et Mat, 1948

1BB2N1K/p1nN2Q1/1p5p/qRb4p/1pR1bknr/4r1p1/6P1/8

#2

9 + 14

6490 yacpdb 2009

SOLUTION

  • SOUND
  • Sets
    • 1...Bd4
      • 2.Se6#
    • 1...Bd6
      • 2.Sg6#
    • 1...Be7
      • 2.Se6#
      • 2.Sg6#
  • Tries
    • 1.Bxc7+?
      • 1...Kf5
        • 2.Sxc5#
        • 2.Sxb6#
        • 2.Sf6#
        • 2.Sb8#
        • 2.Qg6#
      • 1...Bd6
        • 2.Se6#
        • 2.Sg6#
      • 1...Se5!
  • Keys
    • 1.Sf6!
      • threat
        • 2.Sd5#
      • 1...Ke5
        • 2.Bxc7#
      • 1...Sxf6
        • 2.Qxf6#
      • 1...Rd3
        • 2.Rxe4#
      • 1...Bd4
        • 2.Se6#
      • 1...Bd6
        • 2.Sg6#
      • 1...Se5
        • 2.Qxh6#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 4
    • REMOVED MATES = 0
  • Sets
    • B(i);N_SPINB(d),P_PINQ(E)::S(H)
    • B(i);N_SPINS(n)::S(H)
  • Tries
    • Try
      • B(F);CHECK,XS(n)
      • Refutation
        • S(f);P_SPINS(f)
  • Actual
    • S(D);
    • Threat
      • S(D)
    • Vars
      • K(e);N_SPINB(d),P_SPINB(i),S_FLIGHT::B(F),XS(n)
      • S(f);OGATE,XS(D)::QAR2(E),XS(f)
      • R(a);N_GUARD::R1(B),XB(d)
      • B(i);N_SPINB(d)::S(H)
      • B(i);N_SPINS(n)::S(H)
      • S(f);N_GUARD,N_SPINS(n),SBLOCK::QAB(E),XP(l)
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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).