MESON Chess Problem Database

Problem Display
PID: 88103 (8/3rp3/q1p1B2R/2B1kN1b/6rp/pQ1p1RP1/5N2/3K4 w - - 0 1)

Stocchi, Ottavio

Problemisten, 1948

8/3rp3/q1p1B2R/2B1kN1b/6rp/pQ1p1RP1/5N2/3K4

#2

9 + 10

6490 yacpdb 2009

SOLUTION

  • SOUND
  • Sets
    • 1...Rf4
      • 2.gxf4#
  • Tries
    • 1.Sxg4+?
      • 1...Ke4
        • 2.Re3#
        • 2.Rf4#
      • 1...Bxg4!
    • 1.Qb8+?
      • 1...Rc7
        • 2.Qxc7#
      • 1...Rd6!
  • Keys
    • 1.Sd6!
      • threat
        • 2.Rf5#
      • 1...Rxg3
        • 2.Qc3#
      • 1...Ra4
        • 2.Rxh5#
      • 1...Rb4
        • 2.Rxh5#
      • 1...Rc4
        • 2.Sxd3#
      • 1...Rd4
        • 2.Rxh5#
      • 1...Re4
        • 2.Rxh5#
      • 1...Rf4
        • 2.gxf4#
      • 1...Rg5
        • 2.Qc3#
      • 1...Rg6
        • 2.Sf7#
      • 1...Rg7
        • 2.Qc3#
      • 1...Rg8
        • 2.Qc3#
      • 1...Bg6
        • 2.Sxg4#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 11
    • REMOVED MATES = 0
  • Sets
    • R(c);OGATE,P_PINR(D)::P(E),XR(c)
  • Tries
    • Try
      • S(B);CHECK,XR(c)
      • Refutation
        • B(f);P_PINR(D),XS(B)
    • Try
      • Q(C);CHECK
      • Vars
        • R(i);N_GUARD,P_SPINR(i)::QAB(C),XR(i)
      • Refutation
        • R(i);P_SPINR(i)
  • Actual
    • S(G);
    • Threat
      • R1(D)
    • Vars
      • R(c);N_GUARD,P_PINR(D),XP(E)::QAB(C)
      • R(c);N_GUARD,P_PINR(D)::R(I),XB(f)
      • R(c);P_PINR(D),S_CUTQ(g)::S(B),XP(b)
      • R(c);OGATE,P_PINR(D)::P(E),XR(c)
      • R(c);N_GUARD,P_PINR(D)::QAB(C)
      • R(c);P_PINR(D),S_CUTB(f)::S(G)
      • B(f);N_GUARD::S(B),XR(c)
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).