MESON Chess Problem Database

Problem Display
PID: 11399 (1KnRRb2/2pqn2B/2b5/4N3/2Pk3N/BPp3Qr/4r3/8 w - - 0 1)

Stocchi, Ottavio

1st Prize, Match: Germany - Italy, 1938

1KnRRb2/2pqn2B/2b5/4N3/2Pk3N/BPp3Qr/4r3/8

#2

10 + 10

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

SOLUTION

  • SOUND
  • Sets
    • 1...Sd5
      • 2.Sef3#
    • 1...Sf5
      • 2.Sxc6#
    • 1...Sg6
      • 2.Sxc6#
    • 1...Sg8
      • 2.Sxc6#
  • Tries
    • 1.Sf5+?
      • 1...Sxf5
        • 2.Sxc6#
      • 1...Ke4!
    • 1.Sxd7?
      • threat
        • 2.Bc5#
      • 1...Re5
        • 2.Qxe5#
      • 1...Sd5
        • 2.Sf3#
        • 2.Sf5#
      • 1...Sf5
        • 2.Sxf5#
      • 1...Sg6
        • 2.Sf5#
      • 1...Sg8
        • 2.Sf5#
      • 1...Bxd7!
  • Keys
    • 1.Sd3!
      • threat
        • 2.Bc5#
      • 1...c2
        • 2.Bb2#
      • 1...Re5
        • 2.Qxe5#
      • 1...Sd5
        • 2.Sf3#
      • 1...Sf5
        • 2.Sxf5#
      • 1...Sg6
        • 2.Sf5#
      • 1...Sg8
        • 2.Sf5#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 4
    • ADDED MATES = 2
    • REMOVED MATES = 0
  • Sets
    • S(h);N_SPINQ(g),S_CUTB(e)::S(F)
    • S(h);N_GUARD::S(F),XB(e)
  • Tries
    • Try
      • S(E);CHECK
      • Vars
        • S(h);XS(E)::S(F),XB(e)
      • Refutation
        • K(d);N_SPINQ(g),P-FLIGHT
    • Try
      • S(F);XQ(g)
      • Threat
        • B(A)
      • Vars
        • R(a);N_GUARD::QAB1(C),XR(a)
        • S(h);N_GUARD::S(E),XS(h)
        • S(h);N_GUARD::S(E)
      • Refutation
        • B(e);P_SPINB(e),XS(F)
  • Actual
    • S(F);
    • Threat
      • B(A)
    • Vars
      • P(b);OGATEB::B(A)
      • R(a);N_GUARD::QAB1(C),XR(a)
      • S(h);N_SPINQ(g),S_CUTB(e)::S(E)
      • S(h);N_GUARD::S(E),XS(h)
      • S(h);N_GUARD::S(E)
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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).