MESON Chess Problem Database

Problem Display
PID: 6767 (1R4K1/3p4/pN1P4/pk6/2N1B3/Br1n4/b1Q1nb2/8 w - - 0 1)

Stocchi, Ottavio

1st Prize, L'Italia Scacchistica, 1932

1R4K1/3p4/pN1P4/pk6/2N1B3/Br1n4/b1Q1nb2/8

#2

8 + 9

3098 FIDE Album (1914-1944) (I) 1971
3100 Selected Stocchi (I) 2001

SOLUTION

  • SOUND
  • Sets
    • 1...Rb1
      • 2.Qa4#
    • 1...Rb2
      • 2.Qa4#
    • 1...Rc3
      • 2.Qa4#
  • Tries
    • 1.Sxd7+?
      • 1...Ka4
        • 2.Bc6#
      • 1...Bb6!
  • Keys
    • 1.Se3!
      • threat
        • 2.Qc4#
      • 1...Rb1+
        • 2.Sbc4#
        • 2.Sbd5#
      • 1...Rb2+
        • 2.Sbc4#
        • 2.Sbd5#
      • 1...Rxa3+
        • 2.Sbd5#
      • 1...Rc3+
        • 2.Sbc4#
      • 1...Rb4+
        • 2.Sbd5#
      • 1...a4
        • 2.Sbc4#
      • 1...Sc3
        • 2.Qxd3#
      • 1...Sb2
        • 2.Qc5#
      • 1...Se5
        • 2.Qc5#

There are these versions: 95777

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 1
    • ADDED MATES = 6
    • REMOVED MATES = 2
  • Sets
    • R(d);OGATE,P_PINS(C)::QAB1(A)
  • Tries
    • Try
      • S(E);CHECK,XP(i)
      • Vars
        • K(g);P_SPINR(d),S_FLIGHT::B(D)
      • Refutation
        • B(c);P_SPINB(c)
  • Actual
    • S(C);
    • Threat
      • QAB1(A)
    • Vars
      • R(d);CHECK,XB(B)::R(G)+S(E)
      • R(d);CHECK::R(G)+S(E)
      • P(f);SBLOCK::R(G)+S(E)
      • S(b);S_CUTR(d)::QAB(A),XS(e)
      • S(e);N_GUARD::QAR1(A)
HTML5 logo

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).