MESON Chess Problem Database

Problem Display
PID: 272245 (1B3Kn1/3B4/Q2P1kp1/R3Np2/2Pppp1P/3PR3/6q1/8 w - - 0 1)

Simoni, Francesco

e4-e5, 2016

1B3Kn1/3B4/Q2P1kp1/R3Np2/2Pppp1P/3PR3/6q1/8

#2

11 + 8

15601 Albrecht-Leiss-Degener Collection 2023

SOLUTION

  • SOUND
  • Sets
    • 1...Se7
      • 2.dxe7#
  • Tries
    • 1.Ba4?
      • threat
        • 2.d7#
      • 1...Ke6
        • 2.d7#
      • 1...exd3
        • 2.Sd7#
      • 1...Se7
        • 2.dxe7#
      • 1...Qb2!
    • 1.Bxf5?
      • threat
        • 2.Sd7#
      • 1...gxf5
        • 2.d7#
      • 1...Kxf5!
    • 1.Bc8?
      • threat
        • 2.d7#
      • 1...exd3
        • 2.Sd7#
      • 1...Se7
        • 2.dxe7#
      • 1...Qb2!
    • 1.Be8?
      • threat
        • 2.d7#
      • 1...Ke6
        • 2.d7#
      • 1...exd3
        • 2.Sd7#
      • 1...Se7
        • 2.dxe7#
      • 1...Qb2!
  • Keys
    • 1.Bb5!
      • threat
        • 2.d7#
      • 1...Kxe5
        • 2.d7#
      • 1...Ke6
        • 2.d7#
      • 1...exd3
        • 2.Sd7#
      • 1...Se7
        • 2.dxe7#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 0
    • ADDED MATES = 3
    • REMOVED MATES = 0
  • Sets
    • S(h);OGATE::QAR(G)+P(H),XS(h)
  • Tries
    • Try
      • B(I);
      • Threat
        • QAR(G)+P(H)
      • Vars
        • K(f);P-FLIGHT::QAR(G)+P(H)
        • P(c);XP(A)::S(F)
        • S(h);OGATE::QAR(G)+P(H),XS(h)
      • Refutation
        • Q(a);
    • Try
      • B(I);XP(e)
      • Threat
        • S(F)
      • Vars
        • P(g);SBLOCK,XB(I)::QAR(G)+P(H)
      • Refutation
        • K(f);P-FLIGHT,XB(I)
    • Try
      • B(I);
      • Threat
        • QAR(G)+P(H)
      • Vars
        • P(c);XP(A)::S(F)
        • S(h);OGATE::QAR(G)+P(H),XS(h)
      • Refutation
        • Q(a);
    • Try
      • B(I);
      • Threat
        • QAR(G)+P(H)
      • Vars
        • K(f);P-FLIGHT::QAR(G)+P(H)
        • P(c);XP(A)::S(F)
        • S(h);OGATE::QAR(G)+P(H),XS(h)
      • Refutation
        • Q(a);
  • Actual
    • B(I);
    • Threat
      • QAR(G)+P(H)
    • Vars
      • K(f);P_SPINP(c),S_FLIGHT,XS(F)::B(J)+P(H)
      • K(f);P-FLIGHT::QAR(G)+P(H)
      • P(c);XP(A)::S(F)
      • S(h);OGATE::QAR(G)+P(H),XS(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).