MESON Chess Problem Database

Problem Display
PID: 201484 (2K5/8/6pB/Q7/4kn1N/1N2P3/p1PP3b/1n6 w - - 0 1)

Pasqualini, Giulio

L'Italia Scacchistica, 1922

2K5/8/6pB/Q7/4kn1N/1N2P3/p1PP3b/1n6

#2

8 + 6

6490 yacpdb 2020

SOLUTION

  • SOUND
  • Sets
    • 1...Se2
      • 2.d3#
    • 1...Sg2
      • 2.d3#
    • 1...Sh3
      • 2.d3#
    • 1...Sh5
      • 2.d3#
    • 1...Se6
      • 2.d3#
    • 1...g5
      • 2.Qf5#
  • Tries
    • 1.Bxf4?
      • threat
        • 2.Qe5#
        • 2.Qa8#
        • 2.d3#
      • 1...Sxd2
        • 2.Sxd2#
        • 2.Qe5#
        • 2.Qa8#
      • 1...a1Q
        • 2.d3#
      • 1...a1B
        • 2.Qa8#
        • 2.d3#
      • 1...a1R
        • 2.Qe5#
        • 2.d3#
      • 1...Sc3
        • 2.Qe5#
        • 2.d3#
      • 1...Bxf4!
    • 1.d3+?
      • 1...Kxe3
        • 2.Qe1#
      • 1...Sxd3!
  • Keys
    • 1.d4!
      • threat
        • 2.Qe5#
      • 1...Kxe3
        • 2.Qe1#
      • 1...Se2
        • 2.Qa8#
      • 1...Sg2
        • 2.Qa8#
      • 1...Sd3
        • 2.Qa8#
      • 1...Sh3
        • 2.Qa8#
      • 1...Sd5
        • 2.Sc5#
      • 1...Sh5
        • 2.Qa8#
      • 1...Se6
        • 2.Qa8#

FEATURES

  • Static
    • TYPE = THREAT
    • CHANGED MATES = 5
    • ADDED MATES = 3
    • REMOVED MATES = 1
  • Sets
    • S(e);N_GUARD::P(B)
    • P(f);N_GUARD::QAB1(F)
  • Tries
    • Try
      • B(G);XS(e)
      • Threat
        • DUALS(3)
      • Vars
        • P(b);::P(B)
      • Refutation
        • B(c);XB(G)
    • Try
      • P(B);CHECK
      • Vars
        • K(d);P-FLIGHT,P_SPINS(e),XP(D)::QAR2(F)
      • Refutation
        • S(e);XP(B)
  • Actual
    • P(B);
    • Threat
      • QAR1(F)
    • Vars
      • K(d);OGATEB,P-FLIGHT,P_SPINS(e),XP(D)::QAR2(F)
      • S(e);N_GUARD::QAB(F)
      • S(e);SBLOCK::S(C)
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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).