MESON Chess Problem Database

Problem Display
PID: 269758 (2b3Q1/4P2K/2p2N2/R1br1k2/5pNn/q1nP1rpP/8/1B3R2 w - - 0 1)

Chicco, Adriano

L'Italia Scacchistica, 1931

2b3Q1/4P2K/2p2N2/R1br1k2/5pNn/q1nP1rpP/8/1B3R2

#2

10 + 11

15601 Albrecht-Leiss-Degener Collection 2023

SOLUTION

  • SOUND
  • Sets
    • 1...Se4
      • 2.dxe4#
  • Tries
    • 1.e8Q?
      • threat
        • 2.Qh5#
      • 1...Sg6
        • 2.Qexg6#
        • 2.Qgxg6#
      • 1...Se4
        • 2.Qxe4#
        • 2.dxe4#
      • 1...Rd7+!
  • Keys
    • 1.Se4!
      • threat
        • 2.Qf7#
      • 1...Rfxd3
        • 2.Sxg3#
      • 1...Rdxd3
        • 2.Sd6#
      • 1...Bxe7
        • 2.Qxc8#
      • 1...Sxe4
        • 2.dxe4#
      • 1...Rd6
        • 2.Sxd6#
      • 1...Bd4
        • 2.Qxc8#
      • 1...Be6
        • 2.Qg5#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 6
    • REMOVED MATES = 0
  • Sets
    • S(b);OGATE::P(C),XS(b)
  • Tries
    • Try
      • P(H);
      • Threat
        • QAR2(H)
      • Refutation
        • R(h);CHECK,P_SPINB(g)
  • Actual
    • S(G);
    • Threat
      • QAR2(J)
    • Vars
      • R(c);N_GUARD,P_SPINP(e),XP(C)::S(G),XP(d)
      • R(h);N_GUARD,P_SPINB(g),XP(C)::S(G)
      • B(g);P_SPINR(h),XP(H)::QAB(J),XB(k)
      • S(b);OGATE,XS(G)::P(C),XS(b)
      • R(h);N_GUARD,P_SPINB(g)::S(G),XR(h)
      • B(g);P_SPINR(h)::QAB(J),XB(k)
      • B(k);SBLOCK::QAR1(J)
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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).