MESON Chess Problem Database

Problem Display
PID: 184142 (bb2BK2/5Pp1/3p2k1/r5P1/4pQ1R/2n4N/q3p3/8 w - - 0 1)

Bedoni, Romeo

Bulletin Ouvrier des Echecs, 1955

bb2BK2/5Pp1/3p2k1/r5P1/4pQ1R/2n4N/q3p3/8

#2

7 + 10

SOLUTION

  • SOUND
  • Sets
    • 1...Qxf7+
      • 2.Bxf7#
      • 2.Qxf7#
    • 1...Rxg5
      • 2.Qxg5#
    • 1...Sd5
      • 2.Qxe4#
  • Tries
    • 1.Qxd6+?
      • 1...Kf5
        • 2.Rf4#
      • 1...Qe6
        • 2.Qxe6#
      • 1...Bxd6+!
  • Keys
    • 1.Qg4!
      • threat
        • 2.Sf4#
      • 1...Qxf7+
        • 2.Bxf7#
      • 1...Rxg5
        • 2.Qxg5#
      • 1...Qd2
        • 2.Qe6#
      • 1...Rf5
        • 2.Qh5#
      • 1...Sd5
        • 2.Qxe4#
      • 1...d5
        • 2.Qe6#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 4
    • REMOVED MATES = 0
  • Sets
    • R(e);OGATE,XP(D)::QAR1(B),XR(e)
    • S(c);N_GUARD,S_CUTB(i),S_CUTR(e)::QAB(B),XP(d)
  • Tries
    • Try
      • Q(B);CHECK,XP(f)
      • Vars
        • K(g);S_FLIGHT::R1(C)
        • Q(a);N_GUARD,P_SPINQ(a)::QAR2(B),XQ(a)
      • Refutation
        • B(j);CHECK,XQ(B)
  • Actual
    • Q(B);
    • Threat
      • S(A)
    • Vars
      • Q(a);CHECK,OGATE,P_SPINQ(a),XP(E)::B(F),XQ(a)
      • R(e);OGATE,P_SPINR(e),XP(D)::QAR1(B),XR(e)
      • Q(a);N_GUARD::QAR2(B)
      • R(e);P_PINP(E),SBLOCK::QAB1(B)
      • S(c);N_GUARD,S_CUTB(i),S_CUTR(e)::QAB(B),XP(d)
      • P(f);S_CUTQ(a)::QAR2(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).