MESON Chess Problem Database

Problem Display
PID: 165169 (3RB3/2N3Q1/1r1n1P2/N1k5/Kn6/P7/5P2/6b1 w - - 0 1)

Rinaldini, Angelo

L'Italia Scacchistica, 1922

3RB3/2N3Q1/1r1n1P2/N1k5/Kn6/P7/5P2/6b1

#2

9 + 5

15148 Sadier Collection 2017

SOLUTION

  • SOUND
  • Sets
    • 1...Sd5
      • 2.Se6#
    • 1...Sc4
      • 2.Sb3#
    • 1...Sb5
      • 2.axb4#
  • Tries
    • 1.Qg5+?
      • 1...Kd4
        • 2.Qe3#
      • 1...Sd5
        • 2.Se6#
        • 2.Qxd5#
      • 1...Sf5!
    • 1.Qe7?
      • threat
        • 2.Qe3#
      • 1...Kd4
        • 2.Qe3#
      • 1...Sc2
        • 2.Qe5#
      • 1...Sd5
        • 2.Se6#
      • 1...Sc6
        • 2.Qxd6#
      • 1...Bxf2!
  • Keys
    • 1.Qg3!
      • threat
        • 2.Qe3#
      • 1...Kd4
        • 2.Qe3#
      • 1...Bxf2
        • 2.Qxf2#
      • 1...Sc2
        • 2.Qe5#
      • 1...Sd5
        • 2.Se6#
      • 1...Sc6
        • 2.Qxd6#
      • 1...Sc4
        • 2.Sb3#
      • 1...Sb5
        • 2.axb4#
      • 1...Sf5
        • 2.Qc3#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 5
    • REMOVED MATES = 0
  • Sets
    • S(b);SBLOCK::S(F)
    • S(e);SBLOCK::S(D)
    • S(e);S_CUTR(d)::P(B),XS(b)
  • Tries
    • Try
      • Q(G);CHECK
      • Vars
        • K(c);P_SPINS(e),S_FLIGHT::QAB1(G)
      • Refutation
        • S(e);P_SPINS(e)
    • Try
      • Q(G);P_PINS(e)
      • Threat
        • QAB(G)
      • Vars
        • K(c);S_FLIGHT::QAB1(G)
        • S(b);N_GUARD::QAR2(G)
        • S(b);SBLOCK::S(F)
        • S(b);S_CUTR(d)::QAB1(G),XS(e)
      • Refutation
        • B(a);XP(A)
  • Actual
    • Q(G);
    • Threat
      • QAB(G)
    • Vars
      • K(c);P_SPINS(e),S_FLIGHT::QAB1(G)
      • B(a);OGATE,XP(A)::QAB(G),XB(a)
      • S(b);N_GUARD::QAR2(G)
      • S(b);SBLOCK::S(F)
      • S(b);S_CUTR(d)::QAB1(G),XS(e)
      • S(e);SBLOCK::S(D)
      • S(e);S_CUTR(d)::P(B),XS(b)
      • S(e);N_GUARD::QAR2(G)
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).