MESON Chess Problem Database

Problem Display
PID: 259631 (2bBK3/r2p2bQ/8/2PkN2R/1PpN2B1/2P1q1P1/3nR3/8 w - - 0 1)

Sacconi, Antonio

L'Italia Scacchistica, 1918

2bBK3/r2p2bQ/8/2PkN2R/1PpN2B1/2P1q1P1/3nR3/8

#2

12 + 8

15601 Albrecht-Leiss-Degener Collection 2022

SOLUTION

  • SOUND
  • Sets
    • 1...Qg1
      • 2.Qg8#
    • 1...Qxd4
      • 2.Qg8#
    • 1...Qg5
      • 2.Qg8#
    • 1...Qd3
      • 2.Qg8#
    • 1...Qxg3
      • 2.Qg8#
    • 1...Qe4
      • 2.Qg8#
    • 1...Se4
      • 2.Qg8#
  • Keys
    • 1.Sf5!
      • threat
        • 2.Sxe3#
        • 2.Se7#
      • 1...Qxe5+
        • 2.Se7#
      • 1...Ke4
        • 2.Sxe3#
        • 2.Se7#
      • 1...Kxe5
        • 2.Sxe3#
        • 2.Sd4#
        • 2.Sh4#
        • 2.Sd6#
        • 2.Sh6#
        • 2.Sxg7#
      • 1...Ke6
        • 2.Sxe3#
      • 1...Qxc5
        • 2.Qg8#
      • 1...Qxe2
        • 2.Se7#
      • 1...Qxc3
        • 2.Qg8#
      • 1...Qxg3
        • 2.Se7#
        • 2.Qg8#
      • 1...Bxe5
        • 2.Se7#
      • 1...Qg1
        • 2.Se7#
        • 2.Qg8#
      • 1...Qf2
        • 2.Se7#
        • 2.Qg8#
      • 1...Qd4
        • 2.Se7#
        • 2.Qg8#
      • 1...Qf4
        • 2.Se7#
        • 2.Qg8#
      • 1...Qg5
        • 2.Qg8#
      • 1...Qh6
        • 2.Se7#
      • 1...Qd3
        • 2.Se7#
        • 2.Qg8#
      • 1...Qf3
        • 2.Se7#
        • 2.Qg8#
      • 1...Qe4
        • 2.Se7#
      • 1...Bf6
        • 2.Sxe3#
      • 1...Bh6
        • 2.Se7#
      • 1...Bf8
        • 2.Sxe3#
      • 1...Sf1
        • 2.Se7#
      • 1...d6
        • 2.Sxe3#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 1
    • ADDED MATES = 12
    • REMOVED MATES = 5
  • Sets
    • Q(b);N_PINS(H)::QAB(J)
    • Q(b);N_PINS(H),XS(E)::QAB(J)
    • Q(b);N_PINS(H),XP(C)::QAB(J)
    • Q(b);::QAB(J)
    • S(a);N_PINS(H),SBLOCK::QAB(J)
  • Actual
    • S(E);
    • Threat
      • DUALS(2)
    • Vars
      • Q(b);CHECK,XS(H)::S(E)
      • K(d);N_PINS(H),S_FLIGHT::B(F)+S(E),XQ(b)
      • Q(b);N_PINS(H),XP(G)::QAB(J)
      • Q(b);XR(A)::S(E)
      • Q(b);N_PINS(H),XP(B)::QAB(J)
      • B(g);XS(H)::S(E)
      • Q(b);N_PINS(H)::QAB(J)
      • Q(b);N_PINS(H)::S(E)
      • Q(b);::S(E)
      • B(g);::S(E),XQ(b)
      • B(g);::S(E)
      • S(a);::S(E)
      • P(f);::S(E),XQ(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).