MESON Chess Problem Database

Problem Display
PID: 194019 (2N5/p2p4/P4p2/1P1k1P2/2pP4/2K5/4Q3/7b w - - 0 1)

Belli, Nicolo

L'Italia Scacchistica, 1917

2N5/p2p4/P4p2/1P1k1P2/2pP4/2K5/4Q3/7b

#2

7 + 6

6490 yacpdb 2019

SOLUTION

  • SOUND
  • Sets
    • 1...Bg2
      • 2.Qxg2#
    • 1...Bf3
      • 2.Qxf3#
    • 1...Be4
      • 2.Qxc4#
    • 1...d6
      • 2.Se7#
      • 2.Qe6#
  • Tries
    • 1.Qf1?
      • threat
        • 2.Qxh1#
      • 1...Bg2
        • 2.Qxg2#
      • 1...Bf3
        • 2.Qxf3#
      • 1...Be4
        • 2.Qxc4#
      • 1...Ke4!
    • 1.b6?
      • 1...Kc6
        • 2.Qxc4#
      • 1...Bg2
        • 2.Qxg2#
      • 1...Bf3
        • 2.Qxf3#
      • 1...Be4
        • 2.Qxc4#
      • 1...d6
        • 2.Se7#
      • 1...axb6!
  • Keys
    • 1.Qg4!
      • 1...Bg2
        • 2.Qxg2#
      • 1...Bf3
        • 2.Qxf3#
      • 1...Be4
        • 2.Qg8#
      • 1...d6
        • 2.Se7#

FEATURES

  • Static
    • TYPE = MUTATE
    • CHANGED MATES = 1
    • ADDED MATES = 1
    • REMOVED MATES = 0
  • Sets
    • B(a);N_GUARD::QAB(A),XB(a)
    • B(a);SBLOCK::QAB1(A),XP(b)
  • Tries
    • Try
      • Q(A);
      • Threat
        • QAB(A),XB(a)
      • Vars
        • B(a);N_GUARD::QAB(A),XB(a)
        • B(a);SBLOCK::QAB1(A),XP(b)
      • Refutation
        • K(c);S_FLIGHT
    • Try
      • P(D);
      • Vars
        • K(c);S_FLIGHT::QAR2(A),XP(b)
        • B(a);N_GUARD::QAB(A),XB(a)
        • B(a);SBLOCK::QAB1(A),XP(b)
        • P(f);SBLOCK::S(G)
      • Refutation
        • P(e);XP(D)
  • Actual
    • Q(A);
    • Vars
      • B(a);N_GUARD::QAB(A),XB(a)
      • B(a);SBLOCK::QAB(A)
      • P(f);SBLOCK::S(G)
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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).