MESON Chess Problem Database

Problem Display
PID: 267284 (2rnr3/1pNPB3/2kq1nR1/QpNp3R/5b2/5B2/6b1/1K6 w - - 0 1)

Ceriani, Luigi

L'Italia Scacchistica, 1928

2rnr3/1pNPB3/2kq1nR1/QpNp3R/5b2/5B2/6b1/1K6

#2

9 + 11

15601 Albrecht-Leiss-Degener Collection 2022

SOLUTION

  • SOUND
  • Sets
    • 1...Qxc5
      • 2.dxe8Q#
      • 2.dxe8B#
    • 1...Qe5
      • 2.dxe8Q#
      • 2.dxe8B#
  • Keys
    • 1.Sxd5!
      • threat
        • 2.Sb4#
        • 2.Qb6#
      • 1...Kxc5
        • 2.Qc3#
      • 1...Qxc5
        • 2.dxe8Q#
        • 2.dxe8B#
      • 1...Qxe7
        • 2.Qb6#
      • 1...Qxd5
        • 2.dxe8Q#
        • 2.dxe8B#
      • 1...Sxd5
        • 2.dxc8Q#
        • 2.dxc8R#
      • 1...Sxh5
        • 2.Qb6#
        • 2.dxc8Q#
        • 2.dxc8R#
      • 1...Sxd7
        • 2.Sb4#
      • 1...Qc7
        • 2.Sb4#
      • 1...Be5
        • 2.Qb6#
      • 1...Bg5
        • 2.Qb6#
      • 1...b4
        • 2.Sxb4#
        • 2.Qb6#
      • 1...b6
        • 2.Qxb6#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 7
    • REMOVED MATES = 0
  • Sets
    • Q(f);N_GUARD,P_SPINS(g),XS(D)::PXR(k)=Q
    • Q(f);N_GUARD,P_SPINS(g)::PXR(k)=Q
  • Actual
    • S(G);XP(d)
    • Threat
      • DUALS(2)
    • Vars
      • K(e);OGATEB,P-FLIGHT,P_SPINP(c),P_SPINQ(f),XS(D)::QAR2(C)
      • Q(f);N_GUARD,P_SPINS(g),XS(D)::PXR(k)=Q
      • Q(f);P_SPINS(g),XB(I)::QAR1(C)
      • Q(f);N_GUARD,P_SPINQ(f),P_SPINS(g),XS(G)::PXR(k)=Q
      • S(g);P_SPINQ(f),P_SPINS(g),XS(G)::PXR(i)=Q
      • S(g);P_SPINQ(f),XP(H)::B(B)+S(G),DCHECK
      • Q(f);P_SPINS(g)::B(B)+S(G),DCHECK
      • B(b);::QAR1(C)
      • P(h);::QAR1(C),XP(h)
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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).