MESON Chess Problem Database

Problem Display
PID: 260716 (8/Kp4p1/4B2B/2P1pN2/R1nqk2p/2PNp3/p7/3Qn3 w - - 0 1)

Somma, Francesco

Funkschach, 1926

8/Kp4p1/4B2B/2P1pN2/R1nqk2p/2PNp3/p7/3Qn3

#2

9 + 10

15601 Albrecht-Leiss-Degener Collection 2022

SOLUTION

  • SOUND
  • Sets
    • 1...Qxc5+
      • 2.Sxc5#
    • 1...Qxd3
      • 2.Qg4#
    • 1...Qd6
      • 2.Sxd6#
    • 1...Sxd3
      • 2.Qh1#
    • 1...Sb2
      • 2.Sd6#
    • 1...Sa3
      • 2.Sd6#
    • 1...Sa5
      • 2.Sd6#
    • 1...Sb6
      • 2.Sd6#
    • 1...Sd6
      • 2.Sxd6#
    • 1...h3
      • 2.Sg3#
  • Keys
    • 1.Bxe3!
      • threat
        • 2.Sf2#
      • 1...Qxc5+
        • 2.Sxc5#
      • 1...Qxe3
        • 2.Sd6#
      • 1...Qxd3
        • 2.Qg4#
      • 1...Sxd3
        • 2.Qh1#
      • 1...Sxe3
        • 2.Sd6#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 2
    • REMOVED MATES = 7
  • Sets
    • Q(e);CHECK,P_SPINS(d),XP(E)::S(C),XQ(e)
    • Q(e);N_PINP(E),P_SPINS(d),SBLOCK,XS(C)::QAR2(A)
    • Q(e);N_GUARD,N_PINP(E),P_SPINS(d)::S(F),XQ(e)
    • S(a);OGATE,SBLOCK,XS(C)::QAB(A)
    • S(d);N_GUARD,P_SPINQ(e)::S(F)
    • S(d);N_GUARD,N_PINP(E),P_SPINQ(e)::S(F)
    • S(d);N_GUARD,P_SPINQ(e)::S(F),XS(d)
    • P(g);N_GUARD::S(F)
  • Actual
    • B(H);XP(c)
    • Threat
      • S(C)
    • Vars
      • Q(e);CHECK,P_SPINS(d),XP(E)::S(C),XQ(e)
      • Q(e);N_GUARD,P_SPINS(d),SBLOCK,XB(H)::S(F)
      • Q(e);N_PINP(E),P_SPINS(d),SBLOCK,XS(C)::QAR2(A)
      • S(a);OGATE,SBLOCK,XS(C)::QAB(A)
      • S(d);N_GUARD,P_SPINQ(e),SBLOCK,XB(H)::S(F)
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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).