MESON Chess Problem Database

Problem Display
PID: 21820 (2Kn4/8/1Q5N/2NpkB2/R7/2r1n3/8/B7 w - - 0 1)

Brogi, Giuseppe

1st Prize, Good Companions (March Meredith Ty.), 1921

2Kn4/8/1Q5N/2NpkB2/R7/2r1n3/8/B7

#2

7 + 5

3132 The Good Companion Two-Mover 1922
5501 Chess Cameos 1936
3098 FIDE Album (1914-1944) (I) 1971
3310 2345 Chess Problems 1997
14868 Pirnie Collection 2012

SOLUTION

  • SOUND
  • Sets
    • 1...Sc4
      • 2.Sd3#
    • 1...Sxf5
      • 2.Sg4#
    • 1...Se6
      • 2.Qxe6#
    • 1...Sb7
      • 2.Qe6#
    • 1...Sf7
      • 2.Qe6#
  • Tries
    • 1.Kd7?
      • threat
        • 2.Sd3#
        • 2.Qd6#
      • 1...Sxf5
        • 2.Sd3#
        • 2.Sg4#
      • 1...Sc4
        • 2.Sd3#
      • 1...Se6
        • 2.Qxe6#
      • 1...d4
        • 2.Qd6#
      • 1...Sb7
        • 2.Sd3#
        • 2.Qe6#
      • 1...Sf7
        • 2.Sd3#
        • 2.Qe6#
      • 1...Sc6!
    • 1.Kxd8?
      • threat
        • 2.Sd3#
        • 2.Sd7#
        • 2.Qe6#
      • 1...Sc4
        • 2.Sd3#
      • 1...d4!
    • 1.Sg4+?
      • 1...Kxf5
        • 2.Qf6#
      • 1...Sxg4!
    • 1.Sf7+?
      • 1...Sxf7
        • 2.Qe6#
      • 1...Kxf5!
    • 1.Qxd8?
      • threat
        • 2.Qe7#
      • 1...Sxf5
        • 2.Sg4#
        • 2.Sf7#
      • 1...d4
        • 2.Qxd4#
      • 1...Sc4!
  • Keys
    • 1.Kc7!
      • threat
        • 2.Qd6#
      • 1...Se6+
        • 2.Qxe6#
      • 1...Sxf5
        • 2.Sg4#
      • 1...Sc4
        • 2.Sd3#
      • 1...Sc6
        • 2.Sd7#
      • 1...Sb7
        • 2.Qe6#
      • 1...Sf7
        • 2.Qe6#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 1
    • REMOVED MATES = 0
  • Sets
    • S(b);N_PINS(C)::S(C)
    • S(b);N_GUARD,SBLOCK,XB(D)::S(F)
    • S(e);N_GUARD::QAR1(E),XS(e)
    • S(e);N_GUARD::QAR1(E)
  • Tries
    • Try
      • K(G);N_SPINS(C),S_FLIGHT
      • Threat
        • DUALS(2)
      • Vars
        • S(b);::S(C)
        • S(e);N_GUARD::QAR1(E),XS(e)
        • P(c);N_SPINR(a)::QAB1(E)
      • Refutation
        • S(e);
    • Try
      • K(G);N_SPINS(C),P-FLIGHT,XS(e)
      • Threat
        • DUALS(3)
      • Vars
        • S(b);::S(C)
      • Refutation
        • P(c);N_SPINR(a)
    • Try
      • S(F);CHECK
      • Vars
        • K(d);N_SPINR(a),P-FLIGHT,XB(D)::QAR1(E)
      • Refutation
        • S(b);XS(F)
    • Try
      • S(F);CHECK
      • Vars
        • S(e);XS(F)::QAR1(E)
      • Refutation
        • K(d);N_SPINR(a),P-FLIGHT,XB(D)
    • Try
      • Q(E);XS(e)
      • Threat
        • QAR2(E)
      • Vars
        • P(c);N_SPINR(a),OGATE::QAB1(E),XP(c)
      • Refutation
        • S(b);N_PINS(C)
  • Actual
    • K(G);P-FLIGHT
    • Threat
      • QAB1(E)
    • Vars
      • S(e);CHECK,N_GUARD::QAR1(E),XS(e)
      • S(b);N_GUARD,SBLOCK,XB(D)::S(F)
      • S(b);N_PINS(C)::S(C)
      • S(e);N_PINS(C)::S(C)
      • S(e);N_GUARD::QAR1(E)
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).