MESON Chess Problem Database

Problem Display
PID: 92696 (n1N1R3/8/1p3p2/3k1N2/1P6/1rQ4K/Brp5/2b5 w - - 0 1)

Stocchi, Ottavio

Tijdschrift vd KNSB, 1956

n1N1R3/8/1p3p2/3k1N2/1P6/1rQ4K/Brp5/2b5

#2

7 + 8

6490 yacpdb 2009

SOLUTION

  • SOUND
  • Sets
    • 1...Be3
      • 2.Sxe3#
    • 1...Sc7
      • 2.Sxb6#
  • Tries
    • 1.Scd6?
      • threat
        • 2.Qf3#
      • 1...Be3
        • 2.Qc4#
      • 1...Rxa2!
  • Keys
    • 1.Sa7!
      • threat
        • 2.Qd3#
      • 1...Rxa2
        • 2.Qxb3#
      • 1...Be3
        • 2.Qc6#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 1
    • ADDED MATES = 1
    • REMOVED MATES = 1
  • Sets
    • B(a);N_GUARD,N_PINQ(B)::S(E),XB(a)
    • S(h);N_GUARD::S(F),XP(f)
  • Tries
    • Try
      • S(F);
      • Threat
        • QAB(B)
      • Vars
        • B(a);N_PINQ(B)::QAB1(B)
      • Refutation
        • R(b);N_SPINR(d),XB(A)
  • Actual
    • S(F);
    • Threat
      • QAR2(B)
    • Vars
      • R(b);N_GUARD,N_SPINR(d),XB(A)::QAB(B),XR(d)
      • B(a);N_PINQ(B)::QAB1(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).